init

.gitignore

@@ -0,0 +1,173 @@
+# Do not remove or rename entries in this file, only add new ones
+# See https://github.com/flutter/flutter/issues/128635 for more context.
+
+# Miscellaneous
+*.class
+*.lock
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+
+# As packages are no longer pinned, we use a lockfile for testing locally.
+# When unpinning packages, Using lockfiles ensures that failures in PRs are
+# actually due to those PRs, not due to a package being updated.
+!/pubspec.lock
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# Visual Studio Code related
+.classpath
+.project
+.settings/
+.vscode/*
+.ccls-cache
+
+# This file, on the master branch, should never exist or be checked-in.
+#
+# On a *final* release branch, that is, what will ship to stable or beta, the
+# file can be force added (git add --force) and checked-in in order to effectively
+# "pin" the engine artifact version so the flutter tool does not need to use git
+# to determine the engine artifacts.
+#
+# See https://github.com/flutter/flutter/blob/main/docs/tool/Engine-artifacts.md.
+/bin/internal/engine.version
+
+# Flutter repo-specific
+/bin/cache/
+/bin/internal/bootstrap.bat
+/bin/internal/bootstrap.sh
+/bin/internal/engine.realm
+/bin/mingit/
+/dev/benchmarks/mega_gallery/
+/dev/bots/.recipe_deps
+/dev/bots/android_tools/
+/dev/devicelab/ABresults*.json
+/dev/docs/doc/
+/dev/docs/api_docs.zip
+/dev/docs/flutter.docs.zip
+/dev/docs/lib/
+/dev/docs/pubspec.yaml
+/dev/integration_tests/**/xcuserdata
+/dev/integration_tests/**/Pods
+/packages/flutter/coverage/
+version
+analysis_benchmark.json
+
+# packages file containing multi-root paths
+.packages.generated
+
+# Flutter/Dart/Pub related
+**/doc/api/
+.dart_tool/
+.flutter-plugins-dependencies
+**/generated_plugin_registrant.dart
+.packages
+.pub-preload-cache/
+.pub-cache/
+.pub/
+build/
+flutter_*.png
+linked_*.ds
+unlinked.ds
+unlinked_spec.ds
+
+# Android related
+**/android/**/gradle-wrapper.jar
+.gradle/
+**/android/captures/
+**/android/gradlew
+**/android/gradlew.bat
+**/android/**/GeneratedPluginRegistrant.java
+**/android/key.properties
+*.jks
+local.properties
+**/.cxx/
+
+# iOS/XCode related
+**/ios/**/*.mode1v3
+**/ios/**/*.mode2v3
+**/ios/**/*.moved-aside
+**/ios/**/*.pbxuser
+**/ios/**/*.perspectivev3
+**/ios/**/*sync/
+**/ios/**/.sconsign.dblite
+**/ios/**/.tags*
+**/ios/**/.vagrant/
+**/ios/**/DerivedData/
+**/ios/**/Icon?
+**/ios/**/Pods/
+**/ios/**/.symlinks/
+**/ios/**/profile
+**/ios/**/xcuserdata
+**/ios/.generated/
+**/ios/Flutter/.last_build_id
+**/ios/Flutter/App.framework
+**/ios/Flutter/Flutter.framework
+**/ios/Flutter/Flutter.podspec
+**/ios/Flutter/Generated.xcconfig
+**/ios/Flutter/ephemeral
+**/ios/Flutter/app.flx
+**/ios/Flutter/app.zip
+**/ios/Flutter/flutter_assets/
+**/ios/Flutter/flutter_export_environment.sh
+**/ios/ServiceDefinitions.json
+**/ios/Runner/GeneratedPluginRegistrant.*
+
+# macOS
+**/Flutter/ephemeral/
+**/Pods/
+**/macos/Flutter/GeneratedPluginRegistrant.swift
+**/macos/Flutter/ephemeral
+**/xcuserdata/
+
+# Swift package manager (for code indexing)
+**/.build/
+
+# Windows
+**/windows/flutter/ephemeral/
+**/windows/flutter/generated_plugin_registrant.cc
+**/windows/flutter/generated_plugin_registrant.h
+**/windows/flutter/generated_plugins.cmake
+
+# Linux
+**/linux/flutter/ephemeral/
+**/linux/flutter/generated_plugin_registrant.cc
+**/linux/flutter/generated_plugin_registrant.h
+**/linux/flutter/generated_plugins.cmake
+
+# Coverage
+coverage/
+
+# Symbols
+app.*.symbols
+
+# Exceptions to above rules.
+!**/ios/**/default.mode1v3
+!**/ios/**/default.mode2v3
+!**/ios/**/default.pbxuser
+!**/ios/**/default.perspectivev3
+!/packages/flutter_tools/test/data/dart_dependencies_test/**/.packages
+!/dev/ci/**/Gemfile.lock
+!.vscode/settings.json
+
+# Monorepo
+.cipd
+.gclient
+.gclient_entries
+.python-version
+.gclient_previous_custom_vars
+.gclient_previous_sync_commits
+
+# AI related
+.agents/rules/personal-*
+.agents/skills/personal-*
+/.agent-shell/

.metadata

@@ -0,0 +1,36 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: "ad70ec4617166f1c38e5d2bfd388af71fda14f06"
+  channel: "stable"
+
+project_type: app
+
+# Tracks metadata for the flutter migrate command
+migration:
+  platforms:
+    - platform: root
+      create_revision: ad70ec4617166f1c38e5d2bfd388af71fda14f06
+      base_revision: ad70ec4617166f1c38e5d2bfd388af71fda14f06
+    - platform: android
+      create_revision: ad70ec4617166f1c38e5d2bfd388af71fda14f06
+      base_revision: ad70ec4617166f1c38e5d2bfd388af71fda14f06
+    - platform: web
+      create_revision: ad70ec4617166f1c38e5d2bfd388af71fda14f06
+      base_revision: ad70ec4617166f1c38e5d2bfd388af71fda14f06
+    - platform: windows
+      create_revision: ad70ec4617166f1c38e5d2bfd388af71fda14f06
+      base_revision: ad70ec4617166f1c38e5d2bfd388af71fda14f06
+
+  # User provided section
+
+  # List of Local paths (relative to this file) that should be
+  # ignored by the migrate tool.
+  #
+  # Files that are not part of the templates will be ignored by default.
+  unmanaged_files:
+    - 'lib/main.dart'
+    - 'ios/Runner.xcodeproj/project.pbxproj'

README.md

@@ -0,0 +1,17 @@
+# kooltab2
+
+A new Flutter project.
+
+## Getting Started
+
+This project is a starting point for a Flutter application.
+
+A few resources to get you started if this is your first Flutter project:
+
+- [Learn Flutter](https://docs.flutter.dev/get-started/learn-flutter)
+- [Write your first Flutter app](https://docs.flutter.dev/get-started/codelab)
+- [Flutter learning resources](https://docs.flutter.dev/reference/learning-resources)
+
+For help getting started with Flutter development, view the
+[online documentation](https://docs.flutter.dev/), which offers tutorials,
+samples, guidance on mobile development, and a full API reference.

analysis_options.yaml

@@ -0,0 +1,28 @@
+# This file configures the analyzer, which statically analyzes Dart code to
+# check for errors, warnings, and lints.
+#
+# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
+# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
+# invoked from the command line by running `flutter analyze`.
+
+# The following line activates a set of recommended lints for Flutter apps,
+# packages, and plugins designed to encourage good coding practices.
+include: package:flutter_lints/flutter.yaml
+
+linter:
+  # The lint rules applied to this project can be customized in the
+  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
+  # included above or to enable additional rules. A list of all available lints
+  # and their documentation is published at https://dart.dev/lints.
+  #
+  # Instead of disabling a lint rule for the entire project in the
+  # section below, it can also be suppressed for a single line of code
+  # or a specific dart file by using the `// ignore: name_of_lint` and
+  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
+  # producing the lint.
+  rules:
+    # avoid_print: false  # Uncomment to disable the `avoid_print` rule
+    # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

android/.gitignore

@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks

android/app/build.gradle.kts

@@ -0,0 +1,45 @@
+plugins {
+    id("com.android.application")
+    // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
+    id("dev.flutter.flutter-gradle-plugin")
+}
+
+android {
+    namespace = "dev.brammie15.kooltab2"
+    compileSdk = flutter.compileSdkVersion
+    ndkVersion = flutter.ndkVersion
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId = "dev.brammie15.kooltab2"
+        // You can update the following values to match your application needs.
+        // For more information, see: https://flutter.dev/to/review-gradle-config.
+        minSdk = flutter.minSdkVersion
+        targetSdk = flutter.targetSdkVersion
+        versionCode = flutter.versionCode
+        versionName = flutter.versionName
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig = signingConfigs.getByName("debug")
+        }
+    }
+}
+
+kotlin {
+    compilerOptions {
+        jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17
+    }
+}
+
+flutter {
+    source = "../.."
+}

android/app/src/debug/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,45 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <application
+        android:label="kooltab2"
+        android:name="${applicationName}"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:launchMode="singleTop"
+            android:taskAffinity=""
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
+    <!-- Required to query activities that can process text, see:
+         https://developer.android.com/training/package-visibility and
+         https://developer.android.com/reference/android/content/Intent#ACTION_PROCESS_TEXT.
+
+         In particular, this is used by the Flutter engine in io.flutter.plugin.text.ProcessTextPlugin. -->
+    <queries>
+        <intent>
+            <action android:name="android.intent.action.PROCESS_TEXT"/>
+            <data android:mimeType="text/plain"/>
+        </intent>
+    </queries>
+</manifest>

android/app/src/main/kotlin/dev/brammie15/kooltab2/MainActivity.kt

@@ -0,0 +1,5 @@
+package dev.brammie15.kooltab2
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity : FlutterActivity()

android/app/src/main/res/drawable-v21/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?android:colorBackground" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

android/app/src/main/res/drawable/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

android/app/src/main/res/values-night/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

android/app/src/main/res/values/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

android/app/src/profile/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

android/build.gradle.kts

@@ -0,0 +1,24 @@
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+val newBuildDir: Directory =
+    rootProject.layout.buildDirectory
+        .dir("../../build")
+        .get()
+rootProject.layout.buildDirectory.value(newBuildDir)
+
+subprojects {
+    val newSubprojectBuildDir: Directory = newBuildDir.dir(project.name)
+    project.layout.buildDirectory.value(newSubprojectBuildDir)
+}
+subprojects {
+    project.evaluationDependsOn(":app")
+}
+
+tasks.register<Delete>("clean") {
+    delete(rootProject.layout.buildDirectory)
+}

android/gradle.properties

@@ -0,0 +1,6 @@
+org.gradle.jvmargs=-Xmx8G -XX:MaxMetaspaceSize=4G -XX:ReservedCodeCacheSize=512m -XX:+HeapDumpOnOutOfMemoryError
+android.useAndroidX=true
+# This newDsl flag was added by the Flutter template
+android.newDsl=false
+# This builtInKotlin flag was added by the Flutter template
+android.builtInKotlin=false

android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-all.zip

android/settings.gradle.kts

@@ -0,0 +1,26 @@
+pluginManagement {
+    val flutterSdkPath =
+        run {
+            val properties = java.util.Properties()
+            file("local.properties").inputStream().use { properties.load(it) }
+            val flutterSdkPath = properties.getProperty("flutter.sdk")
+            require(flutterSdkPath != null) { "flutter.sdk not set in local.properties" }
+            flutterSdkPath
+        }
+
+    includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
+
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
+plugins {
+    id("dev.flutter.flutter-plugin-loader") version "1.0.0"
+    id("com.android.application") version "9.0.1" apply false
+    id("org.jetbrains.kotlin.android") version "2.3.20" apply false
+}
+
+include(":app")

devtools_options.yaml

@@ -0,0 +1,5 @@
+description: This file stores settings for Dart & Flutter DevTools.
+documentation: https://docs.flutter.dev/tools/devtools/extensions#configure-extension-enablement-states
+extensions:
+  - drift: true
+  - provider: true

lib/app/app.dart

@@ -0,0 +1,23 @@
+import 'package:flutter/material.dart';
+import 'package:kooltab2/theme.dart';
+
+import 'router.dart';
+
+class KoolTabApp extends StatelessWidget {
+  const KoolTabApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp.router(
+      title: 'KoolTab',
+      debugShowCheckedModeBanner: false,
+      routerConfig: appRouter,
+      // theme: ThemeData(
+      //   useMaterial3: false,
+      //   colorSchemeSeed: Colors.redAccent,
+      //   brightness: Brightness.dark,
+      // ),
+      theme: neoBrutalDarkTheme
+    );
+  }
+}

lib/app/app_bootstrap.dart

@@ -0,0 +1,36 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+
+import '../viewmodels/bar_screen_view_model.dart';
+import '../viewmodels/product_list_view_model.dart';
+
+class AppBootstrap extends StatefulWidget {
+  final Widget child;
+
+  const AppBootstrap({
+    super.key,
+    required this.child,
+  });
+
+  @override
+  State<AppBootstrap> createState() => _AppBootstrapState();
+}
+
+class _AppBootstrapState extends State<AppBootstrap> {
+  @override
+  void initState() {
+    super.initState();
+
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (!mounted) return;
+
+      context.read<ProductListViewModel>().ensureLoaded();
+      context.read<BarScreenViewModel>().ensureLoaded();
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return widget.child;
+  }
+}

lib/app/router.dart

@@ -0,0 +1,33 @@
+import 'package:go_router/go_router.dart';
+
+import '../views/bar_screen_view.dart';
+import '../views/product_form_view.dart';
+import '../views/product_list_view.dart';
+
+final appRouter = GoRouter(
+  initialLocation: '/bar',
+  routes: [
+    GoRoute(
+      path: '/bar',
+      builder: (context, state) => const BarScreenView(),
+    ),
+    GoRoute(
+      path: '/products',
+      builder: (context, state) => const ProductListView(),
+      routes: [
+        GoRoute(
+          path: 'new',
+          builder: (context, state) => const ProductFormView(),
+        ),
+        GoRoute(
+          path: ':id/edit',
+          builder: (context, state) {
+            final productId = state.pathParameters['id']!;
+
+            return ProductFormView(productId: productId);
+          },
+        ),
+      ],
+    ),
+  ],
+);

lib/database/app_database.dart

@@ -0,0 +1,112 @@
+import 'package:drift/drift.dart';
+import 'package:drift_flutter/drift_flutter.dart';
+import 'package:path_provider/path_provider.dart';
+
+part 'app_database.g.dart';
+
+@DataClassName('ProductRow')
+class Products extends Table {
+  TextColumn get id => text()();
+
+  TextColumn get name => text()();
+
+  TextColumn get category => text()();
+
+  IntColumn get stockQuantity => integer()();
+
+  IntColumn get lowStockThreshold => integer()();
+
+  IntColumn get priceInCents => integer()();
+
+  TextColumn get imagePath => text().nullable()();
+
+  BoolColumn get active => boolean().withDefault(const Constant(true))();
+
+  @override
+  Set<Column> get primaryKey => {id};
+}
+
+@DataClassName('BarTabRow')
+class BarTabs extends Table {
+  TextColumn get id => text()();
+
+  TextColumn get customerName => text()();
+
+  TextColumn get status => text().withDefault(const Constant('open'))();
+
+  DateTimeColumn get openedAt => dateTime()();
+
+  DateTimeColumn get closedAt => dateTime().nullable()();
+
+  @override
+  Set<Column> get primaryKey => {id};
+}
+
+@DataClassName('TabItemRow')
+class TabItems extends Table {
+  TextColumn get id => text()();
+
+  TextColumn get tabId => text().references(
+    BarTabs,
+    #id,
+    onDelete: KeyAction.cascade,
+  )();
+
+  TextColumn get productId => text().references(
+    Products,
+    #id,
+  )();
+
+  TextColumn get productName => text()();
+
+  IntColumn get quantity => integer()();
+
+  IntColumn get unitPriceInCents => integer()();
+
+  DateTimeColumn get createdAt => dateTime()();
+
+  @override
+  Set<Column> get primaryKey => {id};
+}
+
+@DriftDatabase(
+  tables: [
+    Products,
+    BarTabs,
+    TabItems,
+  ],
+)
+class AppDatabase extends _$AppDatabase {
+  AppDatabase([QueryExecutor? executor]) : super(executor ?? _openConnection());
+
+  @override
+  int get schemaVersion => 3;
+
+  @override
+  MigrationStrategy get migration {
+    return MigrationStrategy(
+      onCreate: (migrator) async {
+        await migrator.createAll();
+      },
+      onUpgrade: (migrator, from, to) async {
+        if (from < 2) {
+          await migrator.createTable(barTabs);
+          await migrator.createTable(tabItems);
+        }
+
+        if (from < 3) {
+          await migrator.addColumn(products, products.imagePath);
+        }
+      },
+    );
+  }
+
+  static QueryExecutor _openConnection() {
+    return driftDatabase(
+      name: 'kooltab',
+      native: const DriftNativeOptions(
+        databaseDirectory: getApplicationSupportDirectory,
+      ),
+    );
+  }
+}

lib/main.dart

@@ -0,0 +1,54 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:provider/provider.dart';
+
+import 'app/app.dart';
+import 'app/app_bootstrap.dart';
+import 'database/app_database.dart';
+import 'services/bar_tab_service.dart';
+import 'services/product_service.dart';
+import 'viewmodels/bar_screen_view_model.dart';
+import 'viewmodels/product_list_view_model.dart';
+
+Future<void> main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+
+  await SystemChrome.setPreferredOrientations([
+    DeviceOrientation.landscapeLeft,
+    DeviceOrientation.landscapeRight,
+  ]);
+
+  runApp(
+    MultiProvider(
+      providers: [
+        Provider<AppDatabase>(
+          create: (_) => AppDatabase(),
+          dispose: (_, database) => database.close(),
+        ),
+        Provider<ProductService>(
+          create: (context) => DriftProductService(
+            database: context.read<AppDatabase>(),
+          ),
+        ),
+        Provider<BarTabService>(
+          create: (context) => DriftBarTabService(
+            database: context.read<AppDatabase>(),
+          ),
+        ),
+        ChangeNotifierProvider<ProductListViewModel>(
+          create: (context) => ProductListViewModel(
+            productService: context.read<ProductService>(),
+          ),
+        ),
+        ChangeNotifierProvider<BarScreenViewModel>(
+          create: (context) => BarScreenViewModel(
+            barTabService: context.read<BarTabService>(),
+          ),
+        ),
+      ],
+      child: const AppBootstrap(
+        child: KoolTabApp(),
+      ),
+    ),
+  );
+}

lib/models/bar_tab.dart

@@ -0,0 +1,39 @@
+import 'tab_item.dart';
+
+class BarTab {
+  final String id;
+  final String customerName;
+  final String status;
+  final DateTime openedAt;
+  final DateTime? closedAt;
+  final List<TabItem> items;
+
+  const BarTab({
+    required this.id,
+    required this.customerName,
+    required this.status,
+    required this.openedAt,
+    required this.items,
+    this.closedAt,
+  });
+
+  int get totalInCents {
+    return items.fold<int>(
+      0,
+          (total, item) => total + item.lineTotalInCents,
+    );
+  }
+
+  int get itemCount {
+    return items.fold<int>(
+      0,
+          (total, item) => total + item.quantity,
+    );
+  }
+
+  String get formattedTotal {
+    return '€${(totalInCents / 100).toStringAsFixed(2)}';
+  }
+
+  bool get isOpen => status == 'open';
+}

lib/models/product.dart

@@ -0,0 +1,51 @@
+class Product {
+  final String id;
+  final String name;
+  final String category;
+  final int stockQuantity;
+  final int lowStockThreshold;
+  final int priceInCents;
+  final String? imagePath;
+  final bool active;
+
+  const Product({
+    required this.id,
+    required this.name,
+    required this.category,
+    required this.stockQuantity,
+    required this.lowStockThreshold,
+    required this.priceInCents,
+    this.imagePath,
+    this.active = true,
+  });
+
+  bool get isLowStock => stockQuantity <= lowStockThreshold;
+
+  String get formattedPrice {
+    final euros = priceInCents / 100;
+
+    return '€${euros.toStringAsFixed(2)}';
+  }
+
+  Product copyWith({
+    String? id,
+    String? name,
+    String? category,
+    int? stockQuantity,
+    int? lowStockThreshold,
+    int? priceInCents,
+    String? imagePath,
+    bool? active,
+  }) {
+    return Product(
+      id: id ?? this.id,
+      name: name ?? this.name,
+      category: category ?? this.category,
+      stockQuantity: stockQuantity ?? this.stockQuantity,
+      lowStockThreshold: lowStockThreshold ?? this.lowStockThreshold,
+      priceInCents: priceInCents ?? this.priceInCents,
+      imagePath: imagePath ?? this.imagePath,
+      active: active ?? this.active,
+    );
+  }
+}

lib/models/tab_item.dart

@@ -0,0 +1,27 @@
+class TabItem {
+  final String id;
+  final String tabId;
+  final String productId;
+  final String productName;
+  final int quantity;
+  final int unitPriceInCents;
+
+  const TabItem({
+    required this.id,
+    required this.tabId,
+    required this.productId,
+    required this.productName,
+    required this.quantity,
+    required this.unitPriceInCents,
+  });
+
+  int get lineTotalInCents => quantity * unitPriceInCents;
+
+  String get formattedLineTotal {
+    return '€${(lineTotalInCents / 100).toStringAsFixed(2)}';
+  }
+
+  String get formattedUnitPrice {
+    return '€${(unitPriceInCents / 100).toStringAsFixed(2)}';
+  }
+}

lib/services/bar_tab_service.dart

@@ -0,0 +1,214 @@
+import 'package:drift/drift.dart';
+import 'package:uuid/uuid.dart';
+
+import '../database/app_database.dart';
+import '../models/bar_tab.dart';
+import '../models/product.dart';
+import '../models/tab_item.dart';
+
+abstract class BarTabService {
+  Future<List<BarTab>> getOpenTabs();
+
+  Future<BarTab?> getTabById(String id);
+
+  Future<BarTab> createTab({
+    required String customerName,
+  });
+
+  Future<void> addProductToTab({
+    required String tabId,
+    required Product product,
+  });
+
+  Future<void> updateTabItemQuantity({
+    required String tabItemId,
+    required int quantity,
+  });
+
+  Future<void> closeTab(String tabId);
+}
+
+class DriftBarTabService implements BarTabService {
+  final AppDatabase database;
+  final _uuid = const Uuid();
+
+  DriftBarTabService({
+    required this.database,
+  });
+
+  TabItem _mapItemRow(TabItemRow row) {
+    return TabItem(
+      id: row.id,
+      tabId: row.tabId,
+      productId: row.productId,
+      productName: row.productName,
+      quantity: row.quantity,
+      unitPriceInCents: row.unitPriceInCents,
+    );
+  }
+
+  BarTab _mapTabRow(
+      BarTabRow row,
+      List<TabItem> items,
+      ) {
+    return BarTab(
+      id: row.id,
+      customerName: row.customerName,
+      status: row.status,
+      openedAt: row.openedAt,
+      closedAt: row.closedAt,
+      items: items,
+    );
+  }
+
+  Future<List<TabItem>> _getItemsForTab(String tabId) async {
+    final query = database.select(database.tabItems)
+      ..where((item) => item.tabId.equals(tabId))
+      ..orderBy([
+            (item) => OrderingTerm.asc(item.createdAt),
+      ]);
+
+    final rows = await query.get();
+
+    return rows.map(_mapItemRow).toList();
+  }
+
+  @override
+  Future<List<BarTab>> getOpenTabs() async {
+    final query = database.select(database.barTabs)
+      ..where((tab) => tab.status.equals('open'))
+      ..orderBy([
+            (tab) => OrderingTerm.desc(tab.openedAt),
+      ]);
+
+    final tabRows = await query.get();
+
+    final tabs = <BarTab>[];
+
+    for (final tabRow in tabRows) {
+      final items = await _getItemsForTab(tabRow.id);
+
+      tabs.add(_mapTabRow(tabRow, items));
+    }
+
+    return tabs;
+  }
+
+  @override
+  Future<BarTab?> getTabById(String id) async {
+    final query = database.select(database.barTabs)
+      ..where((tab) => tab.id.equals(id));
+
+    final tabRow = await query.getSingleOrNull();
+
+    if (tabRow == null) {
+      return null;
+    }
+
+    final items = await _getItemsForTab(tabRow.id);
+
+    return _mapTabRow(tabRow, items);
+  }
+
+  @override
+  Future<BarTab> createTab({
+    required String customerName,
+  }) async {
+    final id = _uuid.v4();
+
+    await database.into(database.barTabs).insert(
+      BarTabsCompanion.insert(
+        id: id,
+        customerName: customerName,
+        status: const Value('open'),
+        openedAt: DateTime.now(),
+      ),
+    );
+
+    final tab = await getTabById(id);
+
+    if (tab == null) {
+      throw Exception('Could not create tab.');
+    }
+
+    return tab;
+  }
+
+  @override
+  Future<void> addProductToTab({
+    required String tabId,
+    required Product product,
+  }) async {
+    await database.transaction(() async {
+      final existingItemQuery = database.select(database.tabItems)
+        ..where(
+              (item) =>
+          item.tabId.equals(tabId) &
+          item.productId.equals(product.id),
+        );
+
+      final existingItem = await existingItemQuery.getSingleOrNull();
+
+      if (existingItem != null) {
+        final updateQuery = database.update(database.tabItems)
+          ..where((item) => item.id.equals(existingItem.id));
+
+        await updateQuery.write(
+          TabItemsCompanion(
+            quantity: Value(existingItem.quantity + 1),
+          ),
+        );
+
+        return;
+      }
+
+      await database.into(database.tabItems).insert(
+        TabItemsCompanion.insert(
+          id: _uuid.v4(),
+          tabId: tabId,
+          productId: product.id,
+          productName: product.name,
+          quantity: 1,
+          unitPriceInCents: product.priceInCents,
+          createdAt: DateTime.now(),
+        ),
+      );
+    });
+  }
+
+  @override
+  Future<void> updateTabItemQuantity({
+    required String tabItemId,
+    required int quantity,
+  }) async {
+    if (quantity <= 0) {
+      final deleteQuery = database.delete(database.tabItems)
+        ..where((item) => item.id.equals(tabItemId));
+
+      await deleteQuery.go();
+      return;
+    }
+
+    final updateQuery = database.update(database.tabItems)
+      ..where((item) => item.id.equals(tabItemId));
+
+    await updateQuery.write(
+      TabItemsCompanion(
+        quantity: Value(quantity),
+      ),
+    );
+  }
+
+  @override
+  Future<void> closeTab(String tabId) async {
+    final updateQuery = database.update(database.barTabs)
+      ..where((tab) => tab.id.equals(tabId));
+
+    await updateQuery.write(
+      BarTabsCompanion(
+        status: const Value('closed'),
+        closedAt: Value(DateTime.now()),
+      ),
+    );
+  }
+}

lib/services/product_service.dart

@@ -0,0 +1,121 @@
+import 'package:drift/drift.dart';
+import 'package:uuid/uuid.dart';
+
+import '../database/app_database.dart';
+import '../models/product.dart';
+
+abstract class ProductService {
+  Future<List<Product>> getProducts();
+
+  Future<Product?> getProductById(String id);
+
+  Future<void> createProduct({
+    required String name,
+    required String category,
+    required int stockQuantity,
+    required int lowStockThreshold,
+    required int priceInCents,
+    required String? imagePath,
+  });
+
+  Future<void> updateProduct(Product product);
+
+  Future<void> deleteProduct(String id);
+}
+
+class DriftProductService implements ProductService {
+  final AppDatabase database;
+  final _uuid = const Uuid();
+
+  DriftProductService({
+    required this.database,
+  });
+
+  Product _mapRowToProduct(ProductRow row) {
+    return Product(
+      id: row.id,
+      name: row.name,
+      category: row.category,
+      stockQuantity: row.stockQuantity,
+      lowStockThreshold: row.lowStockThreshold,
+      priceInCents: row.priceInCents,
+      imagePath: row.imagePath,
+      active: row.active,
+    );
+  }
+
+  @override
+  Future<List<Product>> getProducts() async {
+    final query = database.select(database.products)
+      ..where((product) => product.active.equals(true))
+      ..orderBy([
+            (product) => OrderingTerm.asc(product.name),
+      ]);
+
+    final rows = await query.get();
+
+    return rows.map(_mapRowToProduct).toList();
+  }
+
+  @override
+  Future<Product?> getProductById(String id) async {
+    final query = database.select(database.products)
+      ..where((product) => product.id.equals(id));
+
+    final row = await query.getSingleOrNull();
+
+    if (row == null) {
+      return null;
+    }
+
+    return _mapRowToProduct(row);
+  }
+
+  @override
+  Future<void> createProduct({
+    required String name,
+    required String category,
+    required int stockQuantity,
+    required int lowStockThreshold,
+    required int priceInCents,
+    required String? imagePath,
+  }) async {
+    await database.into(database.products).insert(
+      ProductsCompanion.insert(
+        id: _uuid.v4(),
+        name: name,
+        category: category,
+        stockQuantity: stockQuantity,
+        lowStockThreshold: lowStockThreshold,
+        priceInCents: priceInCents,
+        imagePath: Value(imagePath),
+      ),
+    );
+  }
+
+  @override
+  Future<void> updateProduct(Product product) async {
+    final query = database.update(database.products)
+      ..where((row) => row.id.equals(product.id));
+
+    await query.write(
+      ProductsCompanion(
+        name: Value(product.name),
+        category: Value(product.category),
+        stockQuantity: Value(product.stockQuantity),
+        lowStockThreshold: Value(product.lowStockThreshold),
+        priceInCents: Value(product.priceInCents),
+        imagePath: Value(product.imagePath),
+        active: Value(product.active),
+      ),
+    );
+  }
+
+  @override
+  Future<void> deleteProduct(String id) async {
+    final query = database.delete(database.products)
+      ..where((product) => product.id.equals(id));
+
+    await query.go();
+  }
+}

lib/theme.dart

@@ -0,0 +1,327 @@
+import 'package:flutter/material.dart';
+
+final ThemeData darkTheme = ThemeData(
+  useMaterial3: true,
+  brightness: Brightness.dark,
+
+  colorScheme: ColorScheme.fromSeed(
+    seedColor: const Color(0xFF7C4DFF),
+    brightness: Brightness.dark,
+  ),
+
+  scaffoldBackgroundColor: const Color(0xFF121212),
+  canvasColor: const Color(0xFF121212),
+
+  appBarTheme: const AppBarTheme(
+    elevation: 0,
+    centerTitle: true,
+    backgroundColor: Colors.transparent,
+    foregroundColor: Colors.white,
+    surfaceTintColor: Colors.transparent,
+    titleTextStyle: TextStyle(
+      fontSize: 22,
+      fontWeight: FontWeight.bold,
+      color: Colors.white,
+    ),
+  ),
+
+  cardTheme: CardThemeData(
+    color: const Color(0xFF1E1E1E),
+    elevation: 0,
+    margin: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
+    shape: RoundedRectangleBorder(
+      borderRadius: BorderRadius.circular(18),
+      side: BorderSide(
+        color: Colors.white.withOpacity(0.06),
+      ),
+    ),
+  ),
+
+  elevatedButtonTheme: ElevatedButtonThemeData(
+    style: ElevatedButton.styleFrom(
+      elevation: 0,
+      backgroundColor: const Color(0xFF7C4DFF),
+      foregroundColor: Colors.white,
+      padding: const EdgeInsets.symmetric(
+        horizontal: 24,
+        vertical: 16,
+      ),
+      shape: RoundedRectangleBorder(
+        borderRadius: BorderRadius.circular(14),
+      ),
+      textStyle: const TextStyle(
+        fontSize: 16,
+        fontWeight: FontWeight.w600,
+      ),
+    ),
+  ),
+
+  outlinedButtonTheme: OutlinedButtonThemeData(
+    style: OutlinedButton.styleFrom(
+      foregroundColor: Colors.white,
+      side: BorderSide(
+        color: Colors.white.withOpacity(0.15),
+      ),
+      padding: const EdgeInsets.symmetric(
+        horizontal: 24,
+        vertical: 16,
+      ),
+      shape: RoundedRectangleBorder(
+        borderRadius: BorderRadius.circular(14),
+      ),
+    ),
+  ),
+
+  inputDecorationTheme: InputDecorationTheme(
+    filled: true,
+    fillColor: const Color(0xFF242424),
+    contentPadding: const EdgeInsets.symmetric(
+      horizontal: 18,
+      vertical: 16,
+    ),
+    border: OutlineInputBorder(
+      borderRadius: BorderRadius.circular(14),
+      borderSide: BorderSide.none,
+    ),
+    enabledBorder: OutlineInputBorder(
+      borderRadius: BorderRadius.circular(14),
+      borderSide: BorderSide(
+        color: Colors.white.withOpacity(0.08),
+      ),
+    ),
+    focusedBorder: OutlineInputBorder(
+      borderRadius: BorderRadius.circular(14),
+      borderSide: const BorderSide(
+        color: Color(0xFF7C4DFF),
+        width: 2,
+      ),
+    ),
+  ),
+
+  floatingActionButtonTheme: const FloatingActionButtonThemeData(
+    backgroundColor: Color(0xFF7C4DFF),
+    foregroundColor: Colors.white,
+    elevation: 2,
+  ),
+
+  navigationBarTheme: NavigationBarThemeData(
+    backgroundColor: const Color(0xFF1A1A1A),
+    indicatorColor: const Color(0xFF7C4DFF).withOpacity(0.25),
+    labelTextStyle: WidgetStatePropertyAll(
+      TextStyle(
+        fontWeight: FontWeight.w600,
+      ),
+    ),
+  ),
+
+  listTileTheme: ListTileThemeData(
+    tileColor: const Color(0xFF1E1E1E),
+    shape: RoundedRectangleBorder(
+      borderRadius: BorderRadius.circular(14),
+    ),
+    iconColor: const Color(0xFFB39DFF),
+    textColor: Colors.white,
+  ),
+
+  snackBarTheme: SnackBarThemeData(
+    backgroundColor: const Color(0xFF2A2A2A),
+    behavior: SnackBarBehavior.floating,
+    shape: RoundedRectangleBorder(
+      borderRadius: BorderRadius.circular(12),
+    ),
+  ),
+
+  dividerTheme: DividerThemeData(
+    color: Colors.white.withOpacity(0.08),
+    thickness: 1,
+  ),
+
+  textTheme: const TextTheme(
+    displayLarge: TextStyle(
+      color: Colors.white,
+      fontWeight: FontWeight.bold,
+    ),
+    headlineMedium: TextStyle(
+      color: Colors.white,
+      fontWeight: FontWeight.bold,
+    ),
+    titleLarge: TextStyle(
+      color: Colors.white,
+      fontWeight: FontWeight.w700,
+    ),
+    bodyLarge: TextStyle(
+      color: Colors.white70,
+      fontSize: 16,
+      height: 1.5,
+    ),
+    bodyMedium: TextStyle(
+      color: Colors.white60,
+      height: 1.4,
+    ),
+    labelLarge: TextStyle(
+      color: Colors.white,
+      fontWeight: FontWeight.w600,
+    ),
+  ),
+);
+
+final ThemeData neoBrutalDarkTheme = ThemeData(
+  useMaterial3: true,
+  brightness: Brightness.dark,
+
+  colorScheme: const ColorScheme.dark(
+    primary: Color(0xFFFFD60A),     // Bright yellow
+    secondary: Color(0xFF00E5FF),   // Cyan
+    surface: Color(0xFF1A1A1A),
+    error: Color(0xFFFF5252),
+  ),
+
+  scaffoldBackgroundColor: const Color(0xFF0E0E0E),
+  canvasColor: const Color(0xFF0E0E0E),
+
+  textTheme: const TextTheme(
+    displayLarge: TextStyle(
+      fontSize: 48,
+      fontWeight: FontWeight.w900,
+      color: Colors.white,
+      letterSpacing: -1,
+    ),
+    headlineMedium: TextStyle(
+      fontSize: 32,
+      fontWeight: FontWeight.w900,
+      color: Colors.white,
+    ),
+    titleLarge: TextStyle(
+      fontSize: 22,
+      fontWeight: FontWeight.w800,
+      color: Colors.white,
+    ),
+    bodyLarge: TextStyle(
+      fontSize: 16,
+      fontWeight: FontWeight.w600,
+      color: Colors.white,
+    ),
+    bodyMedium: TextStyle(
+      fontSize: 14,
+      color: Colors.white70,
+    ),
+  ),
+
+  appBarTheme: const AppBarTheme(
+    backgroundColor: Color(0xFF0E0E0E),
+    foregroundColor: Colors.white,
+    elevation: 0,
+    centerTitle: false,
+    titleTextStyle: TextStyle(
+      fontSize: 26,
+      fontWeight: FontWeight.w900,
+      color: Colors.white,
+    ),
+  ),
+
+  cardTheme: CardThemeData(
+    color: const Color(0xFF242424),
+    elevation: 0,
+    shape: RoundedRectangleBorder(
+      borderRadius: BorderRadius.circular(8),
+      side: const BorderSide(
+        color: Colors.white,
+        width: 3,
+      ),
+    ),
+  ),
+
+  elevatedButtonTheme: ElevatedButtonThemeData(
+    style: ElevatedButton.styleFrom(
+      backgroundColor: const Color(0xFFFFD60A),
+      foregroundColor: Colors.black,
+      elevation: 0,
+      shadowColor: Colors.transparent,
+      padding: const EdgeInsets.symmetric(
+        horizontal: 24,
+        vertical: 18,
+      ),
+      shape: RoundedRectangleBorder(
+        borderRadius: BorderRadius.circular(8),
+        side: const BorderSide(
+          color: Colors.black,
+          width: 3,
+        ),
+      ),
+      textStyle: const TextStyle(
+        fontWeight: FontWeight.w900,
+        fontSize: 16,
+      ),
+    ),
+  ),
+
+  inputDecorationTheme: InputDecorationTheme(
+    filled: true,
+    fillColor: const Color(0xFF242424),
+    contentPadding: const EdgeInsets.all(18),
+    border: OutlineInputBorder(
+      borderRadius: BorderRadius.circular(8),
+      borderSide: const BorderSide(
+        color: Colors.white,
+        width: 3,
+      ),
+    ),
+    enabledBorder: OutlineInputBorder(
+      borderRadius: BorderRadius.circular(8),
+      borderSide: const BorderSide(
+        color: Colors.white,
+        width: 3,
+      ),
+    ),
+    focusedBorder: OutlineInputBorder(
+      borderRadius: BorderRadius.circular(8),
+      borderSide: const BorderSide(
+        color: Color(0xFFFFD60A),
+        width: 4,
+      ),
+    ),
+  ),
+
+  floatingActionButtonTheme: const FloatingActionButtonThemeData(
+    backgroundColor: Color(0xFFFF5252),
+    foregroundColor: Colors.white,
+    elevation: 0,
+    shape: RoundedRectangleBorder(
+      borderRadius: BorderRadius.all(Radius.circular(8)),
+      side: BorderSide(
+        color: Colors.white,
+        width: 3,
+      ),
+    ),
+  ),
+
+  snackBarTheme: SnackBarThemeData(
+    backgroundColor: const Color(0xFF242424),
+    shape: RoundedRectangleBorder(
+      borderRadius: BorderRadius.circular(8),
+      side: const BorderSide(
+        color: Colors.white,
+        width: 3,
+      ),
+    ),
+    behavior: SnackBarBehavior.floating,
+  ),
+
+  dividerTheme: const DividerThemeData(
+    color: Colors.white,
+    thickness: 3,
+  ),
+
+  listTileTheme: ListTileThemeData(
+    tileColor: const Color(0xFF242424),
+    shape: RoundedRectangleBorder(
+      borderRadius: BorderRadius.circular(8),
+      side: const BorderSide(
+        color: Colors.white,
+        width: 3,
+      ),
+    ),
+    textColor: Colors.white,
+    iconColor: const Color(0xFFFFD60A),
+  ),
+);

lib/viewmodels/bar_screen_view_model.dart

@@ -0,0 +1,140 @@
+import 'package:flutter/foundation.dart';
+
+import '../models/bar_tab.dart';
+import '../models/product.dart';
+import '../models/tab_item.dart';
+import '../services/bar_tab_service.dart';
+import '../services/product_service.dart';
+
+class BarScreenViewModel extends ChangeNotifier {
+  final BarTabService barTabService;
+
+  BarScreenViewModel({
+    required this.barTabService,
+  });
+
+  List<BarTab> _tabs = [];
+  String? _selectedTabId;
+  bool _isLoading = false;
+  bool _hasLoaded = false;
+  String? _errorMessage;
+
+  List<BarTab> get tabs => _tabs;
+
+  String? get selectedTabId => _selectedTabId;
+
+  bool get isLoading => _isLoading;
+
+  bool get hasLoaded => _hasLoaded;
+
+  String? get errorMessage => _errorMessage;
+
+  BarTab? get selectedTab {
+    if (_selectedTabId == null) return null;
+
+    try {
+      return _tabs.firstWhere((tab) => tab.id == _selectedTabId);
+    } catch (_) {
+      return null;
+    }
+  }
+
+  Future<void> ensureLoaded() async {
+    if (_hasLoaded || _isLoading) return;
+
+    await load();
+  }
+
+  Future<void> load() async {
+    if (_isLoading) return;
+
+    _isLoading = true;
+    _errorMessage = null;
+    notifyListeners();
+
+    try {
+      _tabs = await barTabService.getOpenTabs();
+
+      if (_selectedTabId == null ||
+          !_tabs.any((tab) => tab.id == _selectedTabId)) {
+        _selectedTabId = _tabs.isEmpty ? null : _tabs.first.id;
+      }
+    } catch (_) {
+      _errorMessage = 'Could not load bar screen.';
+    } finally {
+      _hasLoaded = true;
+      _isLoading = false;
+      notifyListeners();
+    }
+  }
+
+  void selectTab(String tabId) {
+    _selectedTabId = tabId;
+    notifyListeners();
+  }
+
+  Future<void> createTab(String customerName) async {
+    final tab = await barTabService.createTab(
+      customerName: customerName,
+    );
+
+    _selectedTabId = tab.id;
+    await _reloadTabs();
+  }
+
+  Future<void> addProductToSelectedTab(Product product) async {
+    final tab = selectedTab;
+
+    if (tab == null) return;
+
+    await barTabService.addProductToTab(
+      tabId: tab.id,
+      product: product,
+    );
+
+    await _reloadTabs();
+  }
+
+  Future<void> changeItemQuantity(
+      TabItem item,
+      int quantity,
+      ) async {
+    await barTabService.updateTabItemQuantity(
+      tabItemId: item.id,
+      quantity: quantity,
+    );
+
+    await _reloadTabs();
+  }
+
+  Future<void> closeSelectedTab() async {
+    final tab = selectedTab;
+
+    if (tab == null) return;
+
+    await barTabService.closeTab(tab.id);
+
+    _selectedTabId = null;
+    await _reloadTabs();
+  }
+
+  Future<void> closeTab(String tabId) async {
+    await barTabService.closeTab(tabId);
+
+    if (_selectedTabId == tabId) {
+      _selectedTabId = null;
+    }
+
+    await _reloadTabs();
+  }
+
+  Future<void> _reloadTabs() async {
+    _tabs = await barTabService.getOpenTabs();
+
+    if (_selectedTabId == null || !_tabs.any((tab) => tab.id == _selectedTabId)) {
+      _selectedTabId = _tabs.isEmpty ? null : _tabs.first.id;
+    }
+
+    notifyListeners();
+  }
+}

lib/viewmodels/product_list_view_model.dart

@@ -0,0 +1,107 @@
+import 'package:flutter/foundation.dart';
+
+import '../models/product.dart';
+import '../services/product_service.dart';
+
+class ProductListViewModel extends ChangeNotifier {
+  final ProductService productService;
+
+  ProductListViewModel({
+    required this.productService,
+  });
+
+  static const List<String> _defaultCategories = [
+    'Bier',
+    'Wijn',
+    'Frisdrank',
+    'Cocktails',
+    'Snacks',
+    'Coffee',
+    'Thee',
+    'Other',
+  ];
+
+  List<Product> _products = [];
+  bool _isLoading = false;
+  bool _hasLoaded = false;
+  String? _errorMessage;
+
+  List<Product> get products => _products;
+
+  bool get isLoading => _isLoading;
+
+  bool get hasLoaded => _hasLoaded;
+
+  String? get errorMessage => _errorMessage;
+
+  Future<void> ensureLoaded() async {
+    if (_hasLoaded || _isLoading) return;
+
+    await loadProducts();
+  }
+
+  Future<void> loadProducts() async {
+    if (_isLoading) return;
+
+    _isLoading = true;
+    _errorMessage = null;
+    notifyListeners();
+
+    try {
+      _products = await productService.getProducts();
+    } catch (_) {
+      _errorMessage = 'Could not load products.';
+    } finally {
+      _hasLoaded = true;
+      _isLoading = false;
+      notifyListeners();
+    }
+  }
+
+  Future<void> addProduct({
+    required String name,
+    required String category,
+    required int stockQuantity,
+    required int lowStockThreshold,
+    required int priceInCents,
+    required String? imagePath,
+  }) async {
+    await productService.createProduct(
+      name: name,
+      category: category,
+      stockQuantity: stockQuantity,
+      lowStockThreshold: lowStockThreshold,
+      priceInCents: priceInCents,
+      imagePath: imagePath,
+    );
+
+    await loadProducts();
+  }
+
+  Future<void> updateProduct(Product product) async {
+    await productService.updateProduct(product);
+    await loadProducts();
+  }
+
+  Future<void> deleteProduct(String id) async {
+    await productService.deleteProduct(id);
+    await loadProducts();
+  }
+
+  Future<Product?> getProductById(String id) {
+    return productService.getProductById(id);
+  }
+
+  List<String> get categories {
+    final categories = {
+      ..._defaultCategories,
+      ..._products
+          .map((p) => p.category.trim())
+          .where((c) => c.isNotEmpty),
+    }.toList();
+
+    categories.sort();
+
+    return categories;
+  }
+}

lib/views/bar_screen_view.dart

@@ -0,0 +1,578 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter/widget_previews.dart';
+import 'package:go_router/go_router.dart';
+import 'package:kooltab2/viewmodels/product_list_view_model.dart';
+import 'package:provider/provider.dart';
+import 'dart:io';
+import 'package:flutter_slidable/flutter_slidable.dart';
+
+import '../models/bar_tab.dart';
+import '../models/product.dart';
+import '../models/tab_item.dart';
+import '../viewmodels/bar_screen_view_model.dart';
+
+class BarScreenView extends StatelessWidget {
+  const BarScreenView({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    final viewModel = context.watch<BarScreenViewModel>();
+    final productsViewModel = context.watch<ProductListViewModel>();
+
+    return Scaffold(
+      appBar: AppBar(
+        actions: [
+          IconButton(
+            tooltip: 'Manage products',
+            onPressed: () => context.go('/products'),
+            icon: const Icon(Icons.inventory_2_outlined),
+          ),
+          IconButton(
+            tooltip: 'Refresh',
+            onPressed: viewModel.load,
+            icon: const Icon(Icons.refresh),
+          ),
+        ],
+      ),
+      resizeToAvoidBottomInset: false,
+      body: Builder(
+        builder: (context) {
+          if (viewModel.isLoading) {
+            return const Center(child: CircularProgressIndicator());
+          }
+
+          if (viewModel.errorMessage != null) {
+            return Center(child: Text(viewModel.errorMessage!));
+          }
+
+          return Row(
+            children: [
+              Expanded(
+                flex: 3,
+                child: _ProductGrid(
+                  products: productsViewModel.products,
+                  hasSelectedTab: viewModel.selectedTab != null,
+                  onProductTap: (product) async {
+                    if (viewModel.selectedTab == null) {
+                      ScaffoldMessenger.of(context).showSnackBar(
+                        const SnackBar(
+                          content: Text('Open or select a tab first.'),
+                        ),
+                      );
+                      return;
+                    }
+
+                    await viewModel.addProductToSelectedTab(product);
+                  },
+                ),
+              ),
+              const VerticalDivider(width: 1),
+              Expanded(
+                flex: 1,
+                child: _TabPanel(
+                  tabs: viewModel.tabs,
+                  selectedTab: viewModel.selectedTab,
+                  selectedTabId: viewModel.selectedTabId,
+                  onNewTabPressed: () => _showNewTabDialog(context),
+                  onTabSelected: viewModel.selectTab,
+                  onItemQuantityChanged: viewModel.changeItemQuantity,
+                  onCloseTabPressed: () => _confirmCloseTab(context),
+                  onTabClosed: viewModel.closeTab,
+                ),
+              ),
+            ],
+          );
+        },
+      ),
+    );
+  }
+
+  Future<void> _showNewTabDialog(BuildContext context) async {
+    final controller = TextEditingController();
+
+    final name = await showDialog<String>(
+      context: context,
+      builder: (dialogContext) {
+        return AlertDialog(
+          title: const Text('Open new tab'),
+          content: TextField(
+            controller: controller,
+            autofocus: true,
+            decoration: const InputDecoration(
+              labelText: 'Customer / group name',
+              border: OutlineInputBorder(),
+            ),
+            onSubmitted: (value) {
+              Navigator.of(dialogContext).pop(value);
+            },
+          ),
+          actions: [
+            TextButton(
+              onPressed: () => Navigator.of(dialogContext).pop(),
+              child: const Text('Cancel'),
+            ),
+            FilledButton(
+              onPressed: () {
+                Navigator.of(dialogContext).pop(controller.text);
+              },
+              child: const Text('Open tab'),
+            ),
+          ],
+        );
+      },
+    );
+
+    if (name == null || name.trim().isEmpty) return;
+
+    if (!context.mounted) return;
+
+    await context.read<BarScreenViewModel>().createTab(name.trim());
+  }
+
+  Future<void> _confirmCloseTab(BuildContext context) async {
+    final viewModel = context.read<BarScreenViewModel>();
+    final tab = viewModel.selectedTab;
+
+    if (tab == null) return;
+
+    final confirmed = await showDialog<bool>(
+      context: context,
+      builder: (dialogContext) {
+        return AlertDialog(
+          title: Text('Close ${tab.customerName}ʼs tab?'),
+          content: Text(
+            'Current total: ${tab.formattedTotal}\n\n'
+            'Payments are not handled yet, so this only marks the tab as closed.',
+          ),
+          actions: [
+            TextButton(
+              onPressed: () => Navigator.of(dialogContext).pop(false),
+              child: const Text('Cancel'),
+            ),
+            FilledButton(
+              onPressed: () => Navigator.of(dialogContext).pop(true),
+              child: const Text('Close tab'),
+            ),
+          ],
+        );
+      },
+    );
+
+    if (confirmed != true) return;
+
+    await viewModel.closeSelectedTab();
+  }
+}
+
+class _ProductGrid extends StatelessWidget {
+  final List<Product> products;
+  final bool hasSelectedTab;
+  final ValueChanged<Product> onProductTap;
+
+  const _ProductGrid({
+    required this.products,
+    required this.hasSelectedTab,
+    required this.onProductTap,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    if (products.isEmpty) {
+      return Center(
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            const Icon(Icons.inventory_2_outlined, size: 48),
+            const SizedBox(height: 12),
+            const Text('No products yet.'),
+            const SizedBox(height: 12),
+            FilledButton.icon(
+              onPressed: () => context.go('/products/new'),
+              icon: const Icon(Icons.add),
+              label: const Text('Add product'),
+            ),
+          ],
+        ),
+      );
+    }
+
+    return LayoutBuilder(
+      builder: (context, constraints) {
+        final columns = ((constraints.maxWidth / 170).floor())
+            .clamp(3, 6)
+            .toInt();
+
+        return GridView.builder(
+          padding: const EdgeInsets.all(16),
+          itemCount: products.length,
+          gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
+            crossAxisCount: columns,
+            crossAxisSpacing: 12,
+            mainAxisSpacing: 12,
+            childAspectRatio: 1,
+          ),
+          itemBuilder: (context, index) {
+            final product = products[index];
+
+            return _ProductTile(
+              product: product,
+              enabled: hasSelectedTab,
+              onTap: () => onProductTap(product),
+            );
+          },
+        );
+      },
+    );
+  }
+}
+
+class _ProductTile extends StatelessWidget {
+  final Product product;
+  final bool enabled;
+  final VoidCallback onTap;
+
+  const _ProductTile({
+    required this.product,
+    required this.enabled,
+    required this.onTap,
+  });
+
+  bool get _hasImage {
+    final imagePath = product.imagePath;
+
+    if (imagePath == null || imagePath.isEmpty) {
+      return false;
+    }
+
+    return File(imagePath).existsSync();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Card(
+      clipBehavior: Clip.antiAlias,
+      margin: EdgeInsets.zero,
+      child: InkWell(
+        onTap: enabled ? onTap : null,
+        child: Opacity(
+          opacity: enabled ? 1 : 0.45,
+          child: _hasImage
+              ? Image.file(
+                  File(product.imagePath!),
+                  fit: BoxFit.scaleDown,
+                  width: double.infinity,
+                  height: double.infinity,
+                )
+              : const Center(
+                  child: Stack(
+                    children: [
+                      Icon(Icons.image_not_supported_outlined, size: 42),
+                      Text("No Image found!"),
+                    ],
+                  ),
+                ),
+        ),
+      ),
+    );
+  }
+}
+
+class _TabPanel extends StatefulWidget {
+  final List<BarTab> tabs;
+  final BarTab? selectedTab;
+  final String? selectedTabId;
+  final VoidCallback onNewTabPressed;
+  final ValueChanged<String> onTabSelected;
+  final Future<void> Function(TabItem item, int quantity) onItemQuantityChanged;
+  final VoidCallback onCloseTabPressed;
+  final ValueChanged<String> onTabClosed;
+
+  const _TabPanel({
+    required this.tabs,
+    required this.selectedTab,
+    required this.selectedTabId,
+    required this.onNewTabPressed,
+    required this.onTabSelected,
+    required this.onItemQuantityChanged,
+    required this.onCloseTabPressed,
+    required this.onTabClosed,
+  });
+
+  @override
+  State<_TabPanel> createState() => _TabPanelState();
+}
+
+class _TabPanelState extends State<_TabPanel> {
+  final TextEditingController _searchController = TextEditingController();
+  String _searchQuery = '';
+
+  @override
+  void dispose() {
+    _searchController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final filteredTabs = widget.tabs.where((tab) {
+      return tab.customerName.toLowerCase().contains(
+        _searchQuery.toLowerCase(),
+      );
+    }).toList();
+
+    return Padding(
+      padding: const EdgeInsets.all(12),
+      child: Column(
+        children: [
+          SizedBox(
+            width: double.infinity,
+            child: FilledButton.icon(
+              onPressed: widget.onNewTabPressed,
+              icon: const Icon(Icons.add),
+              label: const Text('Open tab'),
+            ),
+          ),
+
+          const SizedBox(height: 12),
+
+          TextField(
+            controller: _searchController,
+            onChanged: (value) {
+              setState(() {
+                _searchQuery = value;
+              });
+            },
+            decoration: const InputDecoration(
+              hintText: 'Search name...',
+              prefixIcon: Icon(Icons.search),
+            ),
+          ),
+
+          const SizedBox(height: 12),
+
+          Align(
+            alignment: Alignment.centerLeft,
+            child: Text(
+              'Open tabs',
+              style: Theme.of(context).textTheme.titleMedium,
+            ),
+          ),
+
+          const SizedBox(height: 8),
+
+          SizedBox(
+            height: 200,
+            child: _OpenTabsList(
+              tabs: filteredTabs,
+              selectedTabId: widget.selectedTabId,
+              onTabSelected: widget.onTabSelected,
+              onTabClosed: widget.onTabClosed,
+            ),
+          ),
+
+          const Divider(height: 24),
+
+          Expanded(
+            child: widget.selectedTab == null
+                ? const Center(child: Text('Select or open a tab.'))
+                : _SelectedTabDetails(
+                    tab: widget.selectedTab!,
+                    onItemQuantityChanged: widget.onItemQuantityChanged,
+                    onCloseTabPressed: widget.onCloseTabPressed,
+                  ),
+          ),
+        ],
+      ),
+    );
+  }
+}
+
+class _OpenTabsList extends StatelessWidget {
+  final List<BarTab> tabs;
+  final String? selectedTabId;
+  final ValueChanged<String> onTabSelected;
+  final ValueChanged<String> onTabClosed;
+
+  const _OpenTabsList({
+    required this.tabs,
+    required this.selectedTabId,
+    required this.onTabSelected,
+    required this.onTabClosed,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    if (tabs.isEmpty) {
+      return const Center(child: Text('No open tabs.'));
+    }
+
+    return ListView.separated(
+      itemCount: tabs.length,
+      separatorBuilder: (_, __) => const SizedBox(height: 6),
+      itemBuilder: (context, index) {
+        final tab = tabs[index];
+        final selected = tab.id == selectedTabId;
+
+        return ClipRRect(
+          child: Slidable(
+            key: ValueKey(tab.id),
+            endActionPane: ActionPane(
+              motion: const DrawerMotion(),
+              extentRatio: 0.65,
+              children: [
+                SlidableAction(
+                  onPressed: (_) {
+                    onTabSelected(tab.id);
+                    // TODO: rename/edit tab
+                  },
+                  icon: Icons.edit_outlined,
+                  label: 'Edit',
+                  backgroundColor: Theme.of(context).colorScheme.secondary,
+                  foregroundColor: Theme.of(context).colorScheme.onSecondary,
+                ),
+                SlidableAction(
+                  onPressed: (_) => onTabClosed(tab.id),
+                  icon: Icons.close,
+                  label: 'Close',
+                  backgroundColor: Theme.of(context).colorScheme.error,
+                  foregroundColor: Theme.of(context).colorScheme.onError,
+                ),
+              ],
+            ),
+            child: Card(
+              margin: EdgeInsets.zero,
+              color: selected
+                  ? Theme.of(context).colorScheme.primaryContainer
+                  : null,
+              child: ListTile(
+                dense: true,
+                selected: selected,
+                title: Text(
+                  tab.customerName,
+                  maxLines: 1,
+                  overflow: TextOverflow.ellipsis,
+                ),
+                subtitle: Text('${tab.itemCount} items • ${tab.formattedTotal}'),
+                onTap: () => onTabSelected(tab.id),
+              ),
+            ),
+          ),
+        );
+      },
+    );
+  }
+}
+
+class _SelectedTabDetails extends StatelessWidget {
+  final BarTab tab;
+  final Future<void> Function(TabItem item, int quantity) onItemQuantityChanged;
+  final VoidCallback onCloseTabPressed;
+
+  const _SelectedTabDetails({
+    required this.tab,
+    required this.onItemQuantityChanged,
+    required this.onCloseTabPressed,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Text(
+          tab.customerName,
+          maxLines: 1,
+          overflow: TextOverflow.ellipsis,
+          style: Theme.of(context).textTheme.titleLarge,
+        ),
+        const SizedBox(height: 4),
+        Text(
+          'Total: ${tab.formattedTotal}',
+          style: Theme.of(context).textTheme.titleMedium,
+        ),
+        const SizedBox(height: 12),
+        Expanded(
+          child: tab.items.isEmpty
+              ? const Center(child: Text('Tap products to add them.'))
+              : ListView.separated(
+                  itemCount: tab.items.length,
+                  separatorBuilder: (_, __) => const Divider(height: 1),
+                  itemBuilder: (context, index) {
+                    final item = tab.items[index];
+
+                    return _TabItemRow(
+                      item: item,
+                      onQuantityChanged: onItemQuantityChanged,
+                    );
+                  },
+                ),
+        ),
+        const Divider(height: 24),
+        Row(
+          children: [
+            Expanded(
+              child: Text(
+                tab.formattedTotal,
+                style: Theme.of(context).textTheme.headlineSmall,
+              ),
+            ),
+            FilledButton(
+              onPressed: onCloseTabPressed,
+              child: const Text('Close'),
+            ),
+          ],
+        ),
+      ],
+    );
+  }
+}
+
+class _TabItemRow extends StatelessWidget {
+  final TabItem item;
+  final Future<void> Function(TabItem item, int quantity) onQuantityChanged;
+
+  const _TabItemRow({required this.item, required this.onQuantityChanged});
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.symmetric(vertical: 8),
+      child: Row(
+        children: [
+          Expanded(
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                Text(
+                  item.productName,
+                  maxLines: 1,
+                  overflow: TextOverflow.ellipsis,
+                ),
+                Text(
+                  '${item.quantity} × ${item.formattedUnitPrice}',
+                  style: Theme.of(context).textTheme.bodySmall,
+                ),
+              ],
+            ),
+          ),
+          IconButton(
+            visualDensity: VisualDensity.compact,
+            onPressed: () => onQuantityChanged(item, item.quantity - 1),
+            icon: const Icon(Icons.remove_circle_outline),
+          ),
+          Text('${item.quantity}'),
+          IconButton(
+            visualDensity: VisualDensity.compact,
+            onPressed: () => onQuantityChanged(item, item.quantity + 1),
+            icon: const Icon(Icons.add_circle_outline),
+          ),
+          SizedBox(
+            width: 72,
+            child: Text(item.formattedLineTotal, textAlign: TextAlign.end),
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/views/product_form_view.dart

@@ -0,0 +1,451 @@
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
+import 'package:image_picker/image_picker.dart';
+import 'package:path/path.dart' as path;
+import 'package:path_provider/path_provider.dart';
+import 'package:provider/provider.dart';
+
+import '../models/product.dart';
+import '../viewmodels/product_list_view_model.dart';
+
+class ProductFormView extends StatefulWidget {
+  final String? productId;
+
+  const ProductFormView({
+    super.key,
+    this.productId,
+  });
+
+  bool get isEditing => productId != null;
+
+  @override
+  State<ProductFormView> createState() => _ProductFormViewState();
+}
+
+class _ProductFormViewState extends State<ProductFormView> {
+  final _formKey = GlobalKey<FormState>();
+
+  final _nameController = TextEditingController();
+  final _priceController = TextEditingController();
+  final _stockController = TextEditingController();
+  final _lowStockController = TextEditingController();
+
+  String? _selectedCategory;
+  final _categoryController = TextEditingController();
+
+  final _imagePicker = ImagePicker();
+
+  Product? _existingProduct;
+  String? _imagePath;
+  bool _isLoading = true;
+  bool _isSaving = false;
+
+  @override
+  void initState() {
+    super.initState();
+    _loadProductIfNeeded();
+  }
+
+  Future<void> _loadProductIfNeeded() async {
+    if (!widget.isEditing) {
+      setState(() => _isLoading = false);
+      return;
+    }
+
+    final viewModel = context.read<ProductListViewModel>();
+    final product = await viewModel.getProductById(widget.productId!);
+
+    if (!mounted) return;
+
+    if (product == null) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        const SnackBar(
+          content: Text('Product not found.'),
+        ),
+      );
+
+      context.go('/products');
+      return;
+    }
+
+    _existingProduct = product;
+    _nameController.text = product.name;
+    _selectedCategory = product.category;
+    _priceController.text = (product.priceInCents / 100).toStringAsFixed(2);
+    _stockController.text = product.stockQuantity.toString();
+    _lowStockController.text = product.lowStockThreshold.toString();
+    _imagePath = product.imagePath;
+
+    setState(() => _isLoading = false);
+  }
+
+  @override
+  void dispose() {
+    _nameController.dispose();
+    _priceController.dispose();
+    _stockController.dispose();
+    _lowStockController.dispose();
+
+    super.dispose();
+  }
+
+  Future<String> _copyImageToAppFolder(XFile pickedFile) async {
+    final appDirectory = await getApplicationSupportDirectory();
+    final imagesDirectory = Directory(
+      path.join(appDirectory.path, 'product_images'),
+    );
+
+    if (!await imagesDirectory.exists()) {
+      await imagesDirectory.create(recursive: true);
+    }
+
+    final extension = path.extension(pickedFile.path);
+    final fileName = 'product_${DateTime.now().millisecondsSinceEpoch}$extension';
+    final newPath = path.join(imagesDirectory.path, fileName);
+
+    final copiedFile = await File(pickedFile.path).copy(newPath);
+
+    return copiedFile.path;
+  }
+
+  Future<void> _pickImage() async {
+    final pickedFile = await _imagePicker.pickImage(
+      source: ImageSource.gallery,
+      imageQuality: 85,
+      maxWidth: 1000,
+    );
+
+    if (pickedFile == null) return;
+
+    final copiedImagePath = await _copyImageToAppFolder(pickedFile);
+
+    if (!mounted) return;
+
+    setState(() {
+      _imagePath = copiedImagePath;
+    });
+  }
+
+  int _parsePriceToCents(String value) {
+    final normalized = value.replaceAll(',', '.');
+    final euros = double.tryParse(normalized) ?? 0;
+
+    return (euros * 100).round();
+  }
+
+  Future<void> _save() async {
+    if (!_formKey.currentState!.validate()) return;
+
+    if (_imagePath == null || _imagePath!.isEmpty) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        const SnackBar(
+          content: Text('Choose a product image.'),
+        ),
+      );
+      return;
+    }
+
+    if (_selectedCategory == null) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        const SnackBar(
+          content: Text('Please select a category.'),
+        ),
+      );
+      return;
+    }
+
+    setState(() => _isSaving = true);
+
+    final viewModel = context.read<ProductListViewModel>();
+
+    final name = _nameController.text.trim();
+    final category = _selectedCategory!;
+    final priceInCents = _parsePriceToCents(_priceController.text);
+    final stockQuantity = int.parse(_stockController.text);
+    final lowStockThreshold = int.parse(_lowStockController.text);
+
+    if (widget.isEditing) {
+      final updatedProduct = _existingProduct!.copyWith(
+        name: name,
+        category: category,
+        priceInCents: priceInCents,
+        stockQuantity: stockQuantity,
+        lowStockThreshold: lowStockThreshold,
+        imagePath: _imagePath,
+      );
+
+      await viewModel.updateProduct(updatedProduct);
+    } else {
+      await viewModel.addProduct(
+        name: name,
+        category: category,
+        priceInCents: priceInCents,
+        stockQuantity: stockQuantity,
+        lowStockThreshold: lowStockThreshold,
+        imagePath: _imagePath,
+      );
+    }
+
+    if (!mounted) return;
+
+    setState(() => _isSaving = false);
+    context.go('/products');
+  }
+
+  Future<void> _delete() async {
+    if (!widget.isEditing) return;
+
+    final confirmed = await showDialog<bool>(
+      context: context,
+      builder: (dialogContext) {
+        return AlertDialog(
+          title: const Text('Delete product?'),
+          content: const Text(
+            'This will remove the product from the product list.',
+          ),
+          actions: [
+            TextButton(
+              onPressed: () => Navigator.of(dialogContext).pop(false),
+              child: const Text('Cancel'),
+            ),
+            FilledButton(
+              onPressed: () => Navigator.of(dialogContext).pop(true),
+              child: const Text('Delete'),
+            ),
+          ],
+        );
+      },
+    );
+
+    if (confirmed != true) return;
+
+    final viewModel = context.read<ProductListViewModel>();
+    await viewModel.deleteProduct(widget.productId!);
+
+    if (!mounted) return;
+
+    context.go('/products');
+  }
+
+  Widget _buildImagePicker(BuildContext context) {
+    final hasImage = _imagePath != null && File(_imagePath!).existsSync();
+
+    return InkWell(
+      onTap: _pickImage,
+      borderRadius: BorderRadius.circular(12),
+      child: Container(
+        height: 220,
+        decoration: BoxDecoration(
+          borderRadius: BorderRadius.circular(12),
+          border: Border.all(
+            color: Theme.of(context).colorScheme.outline,
+          ),
+        ),
+        clipBehavior: Clip.antiAlias,
+        child: hasImage
+            ? Stack(
+          fit: StackFit.expand,
+          children: [
+            Image.file(
+              File(_imagePath!),
+              fit: BoxFit.fitHeight,
+            ),
+            Positioned(
+              right: 12,
+              bottom: 12,
+              child: FilledButton.icon(
+                onPressed: _pickImage,
+                icon: const Icon(Icons.image),
+                label: const Text('Change image'),
+              ),
+            ),
+          ],
+        )
+            : Center(
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              const Icon(Icons.add_photo_alternate_outlined, size: 48),
+              const SizedBox(height: 12),
+              Text(
+                'Choose product image',
+                style: Theme.of(context).textTheme.titleMedium,
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final title = widget.isEditing ? 'Edit product' : 'Add product';
+
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(title),
+        leading: IconButton(
+          icon: const Icon(Icons.arrow_back),
+          onPressed: () => context.go('/products'),
+        ),
+        actions: [
+          if (widget.isEditing)
+            IconButton(
+              onPressed: _delete,
+              icon: const Icon(Icons.delete_outline),
+            ),
+        ],
+      ),
+      resizeToAvoidBottomInset: false,
+      body: _isLoading
+          ? const Center(
+        child: CircularProgressIndicator(),
+      )
+          : Center(
+        child: ConstrainedBox(
+          constraints: const BoxConstraints(maxWidth: 720),
+          child: Form(
+            key: _formKey,
+            child: ListView(
+              padding: const EdgeInsets.all(24),
+              children: [
+                _buildImagePicker(context),
+                const SizedBox(height: 24),
+                TextFormField(
+                  controller: _nameController,
+                  decoration: const InputDecoration(
+                    labelText: 'Product name',
+                    border: OutlineInputBorder(),
+                  ),
+                  textInputAction: TextInputAction.next,
+                  validator: (value) {
+                    if (value == null || value.trim().isEmpty) {
+                      return 'Enter a product name.';
+                    }
+
+                    return null;
+                  },
+                ),
+                const SizedBox(height: 16),
+                Consumer<ProductListViewModel>(
+                  builder: (context, viewModel, child) {
+                    return LayoutBuilder(
+                      builder: (context, constraints) {
+                        return DropdownMenu<String>(
+                          width: constraints.maxWidth,
+                          initialSelection: _selectedCategory,
+                          enableFilter: true,
+                          enableSearch: true,
+                          controller: _categoryController,
+                          requestFocusOnTap: true,
+                          label: const Text('Category'),
+                          hintText: 'Select a category',
+                          dropdownMenuEntries: viewModel.categories
+                              .map(
+                                (category) => DropdownMenuEntry<String>(
+                              value: category,
+                              label: category,
+                            ),
+                          )
+                              .toList(),
+                          onSelected: (value) {
+                            setState(() {
+                              _selectedCategory = value;
+                            });
+                          },
+                        );
+                      },
+                    );
+                  },
+                ),
+                const SizedBox(height: 16),
+                TextFormField(
+                  controller: _priceController,
+                  decoration: const InputDecoration(
+                    labelText: 'Price',
+                    prefixText: '€ ',
+                    border: OutlineInputBorder(),
+                  ),
+                  keyboardType: const TextInputType.numberWithOptions(
+                    decimal: true,
+                  ),
+                  textInputAction: TextInputAction.next,
+                  validator: (value) {
+                    if (value == null || value.trim().isEmpty) {
+                      return 'Enter a price.';
+                    }
+
+                    final normalized = value.replaceAll(',', '.');
+                    final price = double.tryParse(normalized);
+
+                    if (price == null || price < 0) {
+                      return 'Enter a valid price.';
+                    }
+
+                    return null;
+                  },
+                ),
+                const SizedBox(height: 16),
+                TextFormField(
+                  controller: _stockController,
+                  decoration: const InputDecoration(
+                    labelText: 'Current stock',
+                    border: OutlineInputBorder(),
+                  ),
+                  keyboardType: TextInputType.number,
+                  textInputAction: TextInputAction.next,
+                  validator: (value) {
+                    final number = int.tryParse(value ?? '');
+
+                    if (number == null || number < 0) {
+                      return 'Enter a valid stock amount.';
+                    }
+
+                    return null;
+                  },
+                ),
+                const SizedBox(height: 16),
+                TextFormField(
+                  controller: _lowStockController,
+                  decoration: const InputDecoration(
+                    labelText: 'Low stock warning threshold',
+                    border: OutlineInputBorder(),
+                  ),
+                  keyboardType: TextInputType.number,
+                  validator: (value) {
+                    final number = int.tryParse(value ?? '');
+
+                    if (number == null || number < 0) {
+                      return 'Enter a valid threshold.';
+                    }
+
+                    return null;
+                  },
+                ),
+                const SizedBox(height: 24),
+                FilledButton.icon(
+                  onPressed: _isSaving ? null : _save,
+                  icon: _isSaving
+                      ? const SizedBox(
+                    width: 18,
+                    height: 18,
+                    child: CircularProgressIndicator(
+                      strokeWidth: 2,
+                    ),
+                  )
+                      : const Icon(Icons.save),
+                  label: Text(
+                    widget.isEditing ? 'Save changes' : 'Add product',
+                  ),
+                ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}

lib/views/product_list_view.dart

@@ -0,0 +1,87 @@
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
+import 'package:provider/provider.dart';
+
+import '../viewmodels/product_list_view_model.dart';
+
+class ProductListView extends StatelessWidget {
+  const ProductListView({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    final viewModel = context.watch<ProductListViewModel>();
+
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Products'),
+        actions: [
+          IconButton(
+            tooltip: 'Back to bar',
+            onPressed: () => context.go('/bar'),
+            icon: const Icon(Icons.point_of_sale),
+          ),
+        ],
+      ),
+      resizeToAvoidBottomInset: false,
+      floatingActionButton: FloatingActionButton.extended(
+        onPressed: () => context.go('/products/new'),
+        icon: const Icon(Icons.add),
+        label: const Text('Add product'),
+      ),
+      body: Builder(
+        builder: (context) {
+          if (viewModel.isLoading) {
+            return const Center(
+              child: CircularProgressIndicator(),
+            );
+          }
+
+          if (viewModel.errorMessage != null) {
+            return Center(
+              child: Text(viewModel.errorMessage!),
+            );
+          }
+
+          if (viewModel.products.isEmpty) {
+            return const Center(
+              child: Text('No products yet.'),
+            );
+          }
+
+          return ListView.separated(
+            padding: const EdgeInsets.all(16),
+            itemCount: viewModel.products.length,
+            separatorBuilder: (_, __) => const SizedBox(height: 8),
+            itemBuilder: (context, index) {
+              final product = viewModel.products[index];
+
+              return Card(
+                child: ListTile(
+                  leading: SizedBox(
+                    width: 56,
+                    height: 56,
+                    child: Center(
+                      child: Image.file(
+                        File(product.imagePath!),
+                        fit: BoxFit.contain,
+                      ),
+                    ),
+                  ),
+                  title: Text(product.name),
+                  subtitle: Text(
+                    '${product.category} • ${product
+                        .formattedPrice} • Stock: ${product.stockQuantity}',
+                  ),
+                  trailing: const Icon(Icons.chevron_right),
+                  onTap: () => context.go('/products/${product.id}/edit'),
+                ),
+              );
+            },
+          );
+        },
+      ),
+    );
+  }
+}

pubspec.lock

@@ -0,0 +1,666 @@
+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+  args:
+    dependency: transitive
+    description:
+      name: args
+      sha256: d0481093c50b1da8910eb0bb301626d4d8eb7284aa739614d2b394ee09e3ea04
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.7.0"
+  async:
+    dependency: transitive
+    description:
+      name: async
+      sha256: e2eb0491ba5ddb6177742d2da23904574082139b07c1e33b8503b9f46f3e1a37
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.13.1"
+  boolean_selector:
+    dependency: transitive
+    description:
+      name: boolean_selector
+      sha256: "8aab1771e1243a5063b8b0ff68042d67334e3feab9e95b9490f9a6ebf73b42ea"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.2"
+  characters:
+    dependency: transitive
+    description:
+      name: characters
+      sha256: faf38497bda5ead2a8c7615f4f7939df04333478bf32e4173fcb06d428b5716b
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.1"
+  clock:
+    dependency: transitive
+    description:
+      name: clock
+      sha256: fddb70d9b5277016c77a80201021d40a2247104d9f4aa7bab7157b7e3f05b84b
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.2"
+  code_assets:
+    dependency: transitive
+    description:
+      name: code_assets
+      sha256: bf394f466ba9205f1812a0433b392d6af280f155f56651eda7c18cc32ed493b8
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.1"
+  collection:
+    dependency: transitive
+    description:
+      name: collection
+      sha256: "2f5709ae4d3d59dd8f7cd309b4e023046b57d8a6c82130785d2b0e5868084e76"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.19.1"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      sha256: b30acd5944035672bc15c6b7a8b47d773e41e2f17de064350988c5d02adb1c68
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.2"
+  cross_file:
+    dependency: transitive
+    description:
+      name: cross_file
+      sha256: "92c9c43c383bfa1c32079d3bc492d55d6d4318044b7b47edaff8971cbb555c51"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.3.5+4"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      sha256: c8ea0233063ba03258fbcf2ca4d6dadfefe14f02fab57702265467a19f27fadf
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.7"
+  cupertino_icons:
+    dependency: "direct main"
+    description:
+      name: cupertino_icons
+      sha256: "41e005c33bd814be4d3096aff55b1908d419fde52ca656c8c47719ec745873cd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.9"
+  drift:
+    dependency: "direct main"
+    description:
+      name: drift
+      sha256: "6cc0b623c0e83f7080524d8396e9301b1d78b9c66a4fdceeb0f798211303254c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.34.0"
+  drift_flutter:
+    dependency: "direct main"
+    description:
+      name: drift_flutter
+      sha256: "887fdec622174dc7eaefd0048403e34ee07cc18626ac8a7544cc3b8a4a172166"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.3.0"
+  fake_async:
+    dependency: transitive
+    description:
+      name: fake_async
+      sha256: "5368f224a74523e8d2e7399ea1638b37aecfca824a3cc4dfdf77bf1fa905ac44"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.3"
+  ffi:
+    dependency: transitive
+    description:
+      name: ffi
+      sha256: "6d7fd89431262d8f3125e81b50d3847a091d846eafcd4fdb88dd06f36d705a45"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
+  file:
+    dependency: transitive
+    description:
+      name: file
+      sha256: a3b4f84adafef897088c160faf7dfffb7696046cb13ae90b508c2cbc95d3b8d4
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.1"
+  file_selector_linux:
+    dependency: transitive
+    description:
+      name: file_selector_linux
+      sha256: "2567f398e06ac72dcf2e98a0c95df2a9edd03c2c2e0cacd4780f20cdf56263a0"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.9.4"
+  file_selector_macos:
+    dependency: transitive
+    description:
+      name: file_selector_macos
+      sha256: "5e0bbe9c312416f1787a68259ea1505b52f258c587f12920422671807c4d618a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.9.5"
+  file_selector_platform_interface:
+    dependency: transitive
+    description:
+      name: file_selector_platform_interface
+      sha256: "35e0bd61ebcdb91a3505813b055b09b79dfdc7d0aee9c09a7ba59ae4bb13dc85"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.7.0"
+  file_selector_windows:
+    dependency: transitive
+    description:
+      name: file_selector_windows
+      sha256: "62197474ae75893a62df75939c777763d39c2bc5f73ce5b88497208bc269abfd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.9.3+5"
+  fixnum:
+    dependency: transitive
+    description:
+      name: fixnum
+      sha256: b6dc7065e46c974bc7c5f143080a6764ec7a4be6da1285ececdc37be96de53be
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
+  flutter:
+    dependency: "direct main"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_lints:
+    dependency: "direct dev"
+    description:
+      name: flutter_lints
+      sha256: "3105dc8492f6183fb076ccf1f351ac3d60564bff92e20bfc4af9cc1651f4e7e1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.0.0"
+  flutter_plugin_android_lifecycle:
+    dependency: transitive
+    description:
+      name: flutter_plugin_android_lifecycle
+      sha256: "3854fe5e3bff0b113c658f260b90c95dea17c92db0f2addeac2e343dd9969785"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.35"
+  flutter_slidable:
+    dependency: "direct main"
+    description:
+      name: flutter_slidable
+      sha256: ea369262929d3cc6ebf9d8a00c196127966f117fe433a5e5cb47fb08008ca203
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.0.3"
+  flutter_test:
+    dependency: "direct dev"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  glob:
+    dependency: transitive
+    description:
+      name: glob
+      sha256: c3f1ee72c96f8f78935e18aa8cecced9ab132419e8625dc187e1c2408efc20de
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.3"
+  go_router:
+    dependency: "direct main"
+    description:
+      name: go_router
+      sha256: "5922b2861e2235a3504896f0d6fa07d84141b480cf52eecd2f42cd25585a9e8a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "17.3.0"
+  hooks:
+    dependency: transitive
+    description:
+      name: hooks
+      sha256: "9a62a50b50b769a737bc0a8ff381f333529df3ab746b2f6b02e83760231455ba"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.2"
+  http:
+    dependency: transitive
+    description:
+      name: http
+      sha256: "87721a4a50b19c7f1d49001e51409bddc46303966ce89a65af4f4e6004896412"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.6.0"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      sha256: "178d74305e7866013777bab2c3d8726205dc5a4dd935297175b19a23a2e66571"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.1.2"
+  image_picker:
+    dependency: "direct main"
+    description:
+      name: image_picker
+      sha256: d8402284df184bc05f4a2210c6c23983b0720f4cd87cbd05c5390a78af602667
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.3"
+  image_picker_android:
+    dependency: transitive
+    description:
+      name: image_picker_android
+      sha256: "6f3a1995eafb000333174fae92202622033b0ee7fd917a6cd3730295264df84a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.8.13+19"
+  image_picker_for_web:
+    dependency: transitive
+    description:
+      name: image_picker_for_web
+      sha256: "66257a3191ab360d23a55c8241c91a6e329d31e94efa7be9cf7a212e65850214"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.1"
+  image_picker_ios:
+    dependency: transitive
+    description:
+      name: image_picker_ios
+      sha256: b9c4a438a9ff4f60808c9cf0039b93a42bb6c2211ef6ebb647394b2b3fa84588
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.8.13+6"
+  image_picker_linux:
+    dependency: transitive
+    description:
+      name: image_picker_linux
+      sha256: "1f81c5f2046b9ab724f85523e4af65be1d47b038160a8c8deed909762c308ed4"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.2.2"
+  image_picker_macos:
+    dependency: transitive
+    description:
+      name: image_picker_macos
+      sha256: "86f0f15a309de7e1a552c12df9ce5b59fe927e71385329355aec4776c6a8ec91"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.2.2+1"
+  image_picker_platform_interface:
+    dependency: transitive
+    description:
+      name: image_picker_platform_interface
+      sha256: "567e056716333a1647c64bb6bd873cff7622233a5c3f694be28a583d4715690c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.11.1"
+  image_picker_windows:
+    dependency: transitive
+    description:
+      name: image_picker_windows
+      sha256: d248c86554a72b5495a31c56f060cf73a41c7ff541689327b1a7dbccc33adfae
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.2.2"
+  jni:
+    dependency: transitive
+    description:
+      name: jni
+      sha256: c2230682d5bc2362c1c9e8d3c7f406d9cbba23ab3f2e203a025dd47e0fb2e68f
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  jni_flutter:
+    dependency: transitive
+    description:
+      name: jni_flutter
+      sha256: "8b59e590786050b1cd866677dddaf76b1ade5e7bc751abe04b86e84d379d3ba6"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.1"
+  leak_tracker:
+    dependency: transitive
+    description:
+      name: leak_tracker
+      sha256: "33e2e26bdd85a0112ec15400c8cbffea70d0f9c3407491f672a2fad47915e2de"
+      url: "https://pub.dev"
+    source: hosted
+    version: "11.0.2"
+  leak_tracker_flutter_testing:
+    dependency: transitive
+    description:
+      name: leak_tracker_flutter_testing
+      sha256: "1dbc140bb5a23c75ea9c4811222756104fbcd1a27173f0c34ca01e16bea473c1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.10"
+  leak_tracker_testing:
+    dependency: transitive
+    description:
+      name: leak_tracker_testing
+      sha256: "8d5a2d49f4a66b49744b23b018848400d23e54caf9463f4eb20df3eb8acb2eb1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.2"
+  lints:
+    dependency: transitive
+    description:
+      name: lints
+      sha256: "12f842a479589fea194fe5c5a3095abc7be0c1f2ddfa9a0e76aed1dbd26a87df"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.1.0"
+  logging:
+    dependency: transitive
+    description:
+      name: logging
+      sha256: c8245ada5f1717ed44271ed1c26b8ce85ca3228fd2ffdb75468ab01979309d61
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.0"
+  matcher:
+    dependency: transitive
+    description:
+      name: matcher
+      sha256: dc0b7dc7651697ea4ff3e69ef44b0407ea32c487a39fff6a4004fa585e901861
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.12.19"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      sha256: "9c337007e82b1889149c82ed242ed1cb24a66044e30979c44912381e9be4c48b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.13.0"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      sha256: "1741988757a65eb6b36abe716829688cf01910bbf91c34354ff7ec1c3de2b349"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.18.0"
+  mime:
+    dependency: transitive
+    description:
+      name: mime
+      sha256: "41a20518f0cb1256669420fdba0cd90d21561e560ac240f26ef8322e45bb7ed6"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.0"
+  native_toolchain_c:
+    dependency: transitive
+    description:
+      name: native_toolchain_c
+      sha256: f9c168717100ae6d9fee9ffb0be379bf1f8b26b0f6bcbd4fdddcd931993a6a72
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.19.2"
+  nested:
+    dependency: transitive
+    description:
+      name: nested
+      sha256: "03bac4c528c64c95c722ec99280375a6f2fc708eec17c7b3f07253b626cd2a20"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  objective_c:
+    dependency: transitive
+    description:
+      name: objective_c
+      sha256: "6cb691c686fa2838c6deb34980d426145c2a5d537491cb83d463c33cdbc726ed"
+      url: "https://pub.dev"
+    source: hosted
+    version: "9.4.1"
+  package_config:
+    dependency: transitive
+    description:
+      name: package_config
+      sha256: f096c55ebb7deb7e384101542bfba8c52696c1b56fca2eb62827989ef2353bbc
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
+  path:
+    dependency: "direct main"
+    description:
+      name: path
+      sha256: "75cca69d1490965be98c73ceaea117e8a04dd21217b37b292c9ddbec0d955bc5"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.9.1"
+  path_provider:
+    dependency: "direct main"
+    description:
+      name: path_provider
+      sha256: a7f4874f987173da295a61c181b8ee71dab59b332a486b391babf26a1b884825
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.6"
+  path_provider_android:
+    dependency: transitive
+    description:
+      name: path_provider_android
+      sha256: "69cbd515a62b94d32a7944f086b2f82b4ac40a1d45bebfc00813a430ab2dabcd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.1"
+  path_provider_foundation:
+    dependency: transitive
+    description:
+      name: path_provider_foundation
+      sha256: "2a376b7d6392d80cd3705782d2caa734ca4727776db0b6ec36ef3f1855197699"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.6.0"
+  path_provider_linux:
+    dependency: transitive
+    description:
+      name: path_provider_linux
+      sha256: "58c2005f147315b11e9b4a7bc889cd5203e250cba8e3f012dae259b4972b5c16"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.2"
+  path_provider_platform_interface:
+    dependency: transitive
+    description:
+      name: path_provider_platform_interface
+      sha256: "484838772624c3a4b94f1e44a3e19897fee738f2d5c4ce448443b0417f7c9dda"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.3"
+  path_provider_windows:
+    dependency: transitive
+    description:
+      name: path_provider_windows
+      sha256: bd6f00dbd873bfb70d0761682da2b3a2c2fccc2b9e84c495821639601d81afe7
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.0"
+  platform:
+    dependency: transitive
+    description:
+      name: platform
+      sha256: "5d6b1b0036a5f331ebc77c850ebc8506cbc1e9416c27e59b439f917a902a4984"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.6"
+  plugin_platform_interface:
+    dependency: transitive
+    description:
+      name: plugin_platform_interface
+      sha256: "4820fbfdb9478b1ebae27888254d445073732dae3d6ea81f0b7e06d5dedc3f02"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.8"
+  provider:
+    dependency: "direct main"
+    description:
+      name: provider
+      sha256: "4e82183fa20e5ca25703ead7e05de9e4cceed1fbd1eadc1ac3cb6f565a09f272"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.1.5+1"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      sha256: "5bfcf68ca79ef689f8990d1160781b4bad40a3bd5e5218ad4076ddb7f4081585"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
+  record_use:
+    dependency: transitive
+    description:
+      name: record_use
+      sha256: "2551bd8eecfe95d14ae75f6021ad0248be5c27f138c2ec12fcb52b500b3ba1ed"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.6.0"
+  sky_engine:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  source_span:
+    dependency: transitive
+    description:
+      name: source_span
+      sha256: "56a02f1f4cd1a2d96303c0144c93bd6d909eea6bee6bf5a0e0b685edbd4c47ab"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.10.2"
+  sqlcipher_flutter_libs:
+    dependency: transitive
+    description:
+      name: sqlcipher_flutter_libs
+      sha256: "38d62d659d2fb8739bf25a42c9a350d1fdd6c29a5a61f13a946778ec75d27929"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.0+eol"
+  sqlite3:
+    dependency: transitive
+    description:
+      name: sqlite3
+      sha256: "752d9d746052359a2022f588bb979f2e7c4e0f9e4b6a1c3121f7626a1574974b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.3.4"
+  sqlite3_flutter_libs:
+    dependency: transitive
+    description:
+      name: sqlite3_flutter_libs
+      sha256: "3ed7553eee7bb368f8950f58ba29f634e06e813c029aff6a0d60862b96de8454"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.6.0+eol"
+  stack_trace:
+    dependency: transitive
+    description:
+      name: stack_trace
+      sha256: "8b27215b45d22309b5cddda1aa2b19bdfec9df0e765f2de506401c071d38d1b1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.12.1"
+  stream_channel:
+    dependency: transitive
+    description:
+      name: stream_channel
+      sha256: "969e04c80b8bcdf826f8f16579c7b14d780458bd97f56d107d3950fdbeef059d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.4"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      sha256: "921cd31725b72fe181906c6a94d987c78e3b98c2e205b397ea399d4054872b43"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.1"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      sha256: "7f554798625ea768a7518313e58f83891c7f5024f88e46e7182a4558850a4b8e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.2"
+  test_api:
+    dependency: transitive
+    description:
+      name: test_api
+      sha256: "949a932224383300f01be9221c39180316445ecb8e7547f70a41a35bf421fb9e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.11"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      sha256: f9049c039ebfeb4cf7a7104a675823cd72dba8297f264b6637062516699fa006
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.0"
+  uuid:
+    dependency: "direct main"
+    description:
+      name: uuid
+      sha256: "1fef9e8e11e2991bb773070d4656b7bd5d850967a2456cfc83cf47925ba79489"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.5.3"
+  vector_math:
+    dependency: transitive
+    description:
+      name: vector_math
+      sha256: d530bd74fea330e6e364cda7a85019c434070188383e1cd8d9777ee586914c5b
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
+  vm_service:
+    dependency: transitive
+    description:
+      name: vm_service
+      sha256: "0016aef94fc66495ac78af5859181e3f3bf2026bd8eecc72b9565601e19ab360"
+      url: "https://pub.dev"
+    source: hosted
+    version: "15.2.0"
+  web:
+    dependency: transitive
+    description:
+      name: web
+      sha256: "868d88a33d8a87b18ffc05f9f030ba328ffefba92d6c127917a2ba740f9cfe4a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
+  xdg_directories:
+    dependency: transitive
+    description:
+      name: xdg_directories
+      sha256: "7a3f37b05d989967cdddcbb571f1ea834867ae2faa29725fd085180e0883aa15"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
+  yaml:
+    dependency: transitive
+    description:
+      name: yaml
+      sha256: b9da305ac7c39faa3f030eccd175340f968459dae4af175130b3fc47e40d76ce
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.3"
+sdks:
+  dart: ">=3.12.2 <4.0.0"
+  flutter: ">=3.44.0"

pubspec.yaml

@@ -0,0 +1,98 @@
+name: kooltab2
+description: "A new Flutter project."
+# The following line prevents the package from being accidentally published to
+# pub.dev using `flutter pub publish`. This is preferred for private packages.
+publish_to: 'none' # Remove this line if you wish to publish to pub.dev
+
+# The following defines the version and build number for your application.
+# A version number is three numbers separated by dots, like 1.2.43
+# followed by an optional build number separated by a +.
+# Both the version and the builder number may be overridden in flutter
+# build by specifying --build-name and --build-number, respectively.
+# In Android, build-name is used as versionName while build-number used as versionCode.
+# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
+# In iOS, build-name is used as CFBundleShortVersionString while build-number is used as CFBundleVersion.
+# Read more about iOS versioning at
+# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
+# In Windows, build-name is used as the major, minor, and patch parts
+# of the product and file versions while build-number is used as the build suffix.
+version: 1.0.0+1
+
+environment:
+  sdk: ^3.12.2
+
+# Dependencies specify other packages that your package needs in order to work.
+# To automatically upgrade your package dependencies to the latest versions
+# consider running `flutter pub upgrade --major-versions`. Alternatively,
+# dependencies can be manually updated by changing the version numbers below to
+# the latest version available on pub.dev. To see which dependencies have newer
+# versions available, run `flutter pub outdated`.
+dependencies:
+  flutter:
+    sdk: flutter
+
+  # The following adds the Cupertino Icons font to your application.
+  # Use with the CupertinoIcons class for iOS style icons.
+  cupertino_icons: ^1.0.8
+  go_router: ^17.3.0
+  provider: ^6.1.5+1
+  uuid: ^4.5.3
+  drift: ^2.34.0
+  drift_flutter: ^0.3.0
+  path_provider: ^2.1.6
+  image_picker: ^1.2.3
+  path: ^1.9.1
+  flutter_slidable: ^4.0.3
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+
+  # The "flutter_lints" package below contains a set of recommended lints to
+  # encourage good coding practices. The lint set provided by the package is
+  # activated in the `analysis_options.yaml` file located at the root of your
+  # package. See that file for information about deactivating specific lint
+  # rules and activating additional ones.
+  flutter_lints: ^6.0.0
+
+# For information on the generic Dart part of this file, see the
+# following page: https://dart.dev/tools/pub/pubspec
+
+# The following section is specific to Flutter packages.
+flutter:
+
+  # The following line ensures that the Material Icons font is
+  # included with your application, so that you can use the icons in
+  # the material Icons class.
+  uses-material-design: true
+
+  # To add assets to your application, add an assets section, like this:
+  # assets:
+  #   - images/a_dot_burr.jpeg
+  #   - images/a_dot_ham.jpeg
+
+  # An image asset can refer to one or more resolution-specific "variants", see
+  # https://flutter.dev/to/resolution-aware-images
+
+  # For details regarding adding assets from package dependencies, see
+  # https://flutter.dev/to/asset-from-package
+
+  # To add custom fonts to your application, add a fonts section here,
+  # in this "flutter" section. Each entry in this list should have a
+  # "family" key with the font family name, and a "fonts" key with a
+  # list giving the asset and other descriptors for the font. For
+  # example:
+  # fonts:
+  #   - family: Schyler
+  #     fonts:
+  #       - asset: fonts/Schyler-Regular.ttf
+  #       - asset: fonts/Schyler-Italic.ttf
+  #         style: italic
+  #   - family: Trajan Pro
+  #     fonts:
+  #       - asset: fonts/TrajanPro.ttf
+  #       - asset: fonts/TrajanPro_Bold.ttf
+  #         weight: 700
+  #
+  # For details regarding fonts from package dependencies,
+  # see https://flutter.dev/to/font-from-package

test/widget_test.dart

@@ -0,0 +1,14 @@
+// This is a basic Flutter widget test.
+//
+// To perform an interaction with a widget in your test, use the WidgetTester
+// utility in the flutter_test package. For example, you can send tap and scroll
+// gestures. You can also use WidgetTester to find child widgets in the widget
+// tree, read text, and verify that the values of widget properties are correct.
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+import 'package:kooltab2/main.dart';
+
+void main() {
+}

web/index.html

@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <!--
+    If you are serving your web app in a path other than the root, change the
+    href value below to reflect the base path you are serving from.
+
+    The path provided below has to start and end with a slash "/" in order for
+    it to work correctly.
+
+    For more details:
+    * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base
+
+    This is a placeholder for base href that will be replaced by the value of
+    the `--base-href` argument provided to `flutter build`.
+  -->
+  <base href="$FLUTTER_BASE_HREF">
+
+  <meta charset="UTF-8">
+  <meta content="IE=Edge" http-equiv="X-UA-Compatible">
+  <meta name="description" content="A new Flutter project.">
+
+  <!-- iOS meta tags & icons -->
+  <meta name="mobile-web-app-capable" content="yes">
+  <meta name="apple-mobile-web-app-status-bar-style" content="black">
+  <meta name="apple-mobile-web-app-title" content="kooltab2">
+  <link rel="apple-touch-icon" href="icons/Icon-192.png">
+
+  <!-- Favicon -->
+  <link rel="icon" type="image/png" href="favicon.png"/>
+
+  <title>kooltab2</title>
+  <link rel="manifest" href="manifest.json">
+</head>
+<body>
+  <!--
+    You can customize the "flutter_bootstrap.js" script.
+    This is useful to provide a custom configuration to the Flutter loader
+    or to give the user feedback during the initialization process.
+
+    For more details:
+    * https://docs.flutter.dev/platform-integration/web/initialization
+  -->
+  <script src="flutter_bootstrap.js" async></script>
+</body>
+</html>

web/manifest.json

@@ -0,0 +1,35 @@
+{
+    "name": "kooltab2",
+    "short_name": "kooltab2",
+    "start_url": ".",
+    "display": "standalone",
+    "background_color": "#0175C2",
+    "theme_color": "#0175C2",
+    "description": "A new Flutter project.",
+    "orientation": "portrait-primary",
+    "prefer_related_applications": false,
+    "icons": [
+        {
+            "src": "icons/Icon-192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-512.png",
+            "sizes": "512x512",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-maskable-192.png",
+            "sizes": "192x192",
+            "type": "image/png",
+            "purpose": "maskable"
+        },
+        {
+            "src": "icons/Icon-maskable-512.png",
+            "sizes": "512x512",
+            "type": "image/png",
+            "purpose": "maskable"
+        }
+    ]
+}

windows/.gitignore

@@ -0,0 +1,17 @@
+flutter/ephemeral/
+
+# Visual Studio user-specific files.
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# Visual Studio build-related files.
+x64/
+x86/
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/

windows/CMakeLists.txt

@@ -0,0 +1,108 @@
+# Project-level configuration.
+cmake_minimum_required(VERSION 3.14)
+project(kooltab2 LANGUAGES CXX)
+
+# The name of the executable created for the application. Change this to change
+# the on-disk name of your application.
+set(BINARY_NAME "kooltab2")
+
+# Explicitly opt in to modern CMake behaviors to avoid warnings with recent
+# versions of CMake.
+cmake_policy(VERSION 3.14...3.25)
+
+# Define build configuration option.
+get_property(IS_MULTICONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
+if(IS_MULTICONFIG)
+  set(CMAKE_CONFIGURATION_TYPES "Debug;Profile;Release"
+    CACHE STRING "" FORCE)
+else()
+  if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+    set(CMAKE_BUILD_TYPE "Debug" CACHE
+      STRING "Flutter build mode" FORCE)
+    set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+      "Debug" "Profile" "Release")
+  endif()
+endif()
+# Define settings for the Profile build mode.
+set(CMAKE_EXE_LINKER_FLAGS_PROFILE "${CMAKE_EXE_LINKER_FLAGS_RELEASE}")
+set(CMAKE_SHARED_LINKER_FLAGS_PROFILE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE}")
+set(CMAKE_C_FLAGS_PROFILE "${CMAKE_C_FLAGS_RELEASE}")
+set(CMAKE_CXX_FLAGS_PROFILE "${CMAKE_CXX_FLAGS_RELEASE}")
+
+# Use Unicode for all projects.
+add_definitions(-DUNICODE -D_UNICODE)
+
+# Compilation settings that should be applied to most targets.
+#
+# Be cautious about adding new options here, as plugins use this function by
+# default. In most cases, you should add new options to specific targets instead
+# of modifying this function.
+function(APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_17)
+  target_compile_options(${TARGET} PRIVATE /W4 /WX /wd"4100")
+  target_compile_options(${TARGET} PRIVATE /EHsc)
+  target_compile_definitions(${TARGET} PRIVATE "_HAS_EXCEPTIONS=0")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<CONFIG:Debug>:_DEBUG>")
+endfunction()
+
+# Flutter library and tool build rules.
+set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
+add_subdirectory(${FLUTTER_MANAGED_DIR})
+
+# Application build; see runner/CMakeLists.txt.
+add_subdirectory("runner")
+
+
+# Generated plugin build rules, which manage building the plugins and adding
+# them to the application.
+include(flutter/generated_plugins.cmake)
+
+
+# === Installation ===
+# Support files are copied into place next to the executable, so that it can
+# run in place. This is done instead of making a separate bundle (as on Linux)
+# so that building and running from within Visual Studio will work.
+set(BUILD_BUNDLE_DIR "$<TARGET_FILE_DIR:${BINARY_NAME}>")
+# Make the "install" step default, as it's required to run.
+set(CMAKE_VS_INCLUDE_INSTALL_TO_DEFAULT_BUILD 1)
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
+endif()
+
+set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
+set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}")
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+  COMPONENT Runtime)
+
+if(PLUGIN_BUNDLED_LIBRARIES)
+  install(FILES "${PLUGIN_BUNDLED_LIBRARIES}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
+
+# Copy the native assets provided by the build.dart from all packages.
+set(NATIVE_ASSETS_DIR "${PROJECT_BUILD_DIR}native_assets/windows/")
+install(DIRECTORY "${NATIVE_ASSETS_DIR}"
+   DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+   COMPONENT Runtime)
+
+# Fully re-copy the assets directory on each build to avoid having stale files
+# from a previous install.
+set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
+install(CODE "
+  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
+  " COMPONENT Runtime)
+install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
+  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
+
+# Install the AOT library on non-Debug builds only.
+install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  CONFIGURATIONS Profile;Release
+  COMPONENT Runtime)

windows/flutter/CMakeLists.txt

@@ -0,0 +1,109 @@
+# This file controls Flutter-level build steps. It should not be edited.
+cmake_minimum_required(VERSION 3.14)
+
+set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
+
+# Configuration provided via flutter tool.
+include(${EPHEMERAL_DIR}/generated_config.cmake)
+
+# TODO: Move the rest of this into files in ephemeral. See
+# https://github.com/flutter/flutter/issues/57146.
+set(WRAPPER_ROOT "${EPHEMERAL_DIR}/cpp_client_wrapper")
+
+# Set fallback configurations for older versions of the flutter tool.
+if (NOT DEFINED FLUTTER_TARGET_PLATFORM)
+  set(FLUTTER_TARGET_PLATFORM "windows-x64")
+endif()
+
+# === Flutter Library ===
+set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/flutter_windows.dll")
+
+# Published to parent scope for install step.
+set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
+set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
+set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
+set(AOT_LIBRARY "${PROJECT_DIR}/build/windows/app.so" PARENT_SCOPE)
+
+list(APPEND FLUTTER_LIBRARY_HEADERS
+  "flutter_export.h"
+  "flutter_windows.h"
+  "flutter_messenger.h"
+  "flutter_plugin_registrar.h"
+  "flutter_texture_registrar.h"
+)
+list(TRANSFORM FLUTTER_LIBRARY_HEADERS PREPEND "${EPHEMERAL_DIR}/")
+add_library(flutter INTERFACE)
+target_include_directories(flutter INTERFACE
+  "${EPHEMERAL_DIR}"
+)
+target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}.lib")
+add_dependencies(flutter flutter_assemble)
+
+# === Wrapper ===
+list(APPEND CPP_WRAPPER_SOURCES_CORE
+  "core_implementations.cc"
+  "standard_codec.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_CORE PREPEND "${WRAPPER_ROOT}/")
+list(APPEND CPP_WRAPPER_SOURCES_PLUGIN
+  "plugin_registrar.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_PLUGIN PREPEND "${WRAPPER_ROOT}/")
+list(APPEND CPP_WRAPPER_SOURCES_APP
+  "flutter_engine.cc"
+  "flutter_view_controller.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_APP PREPEND "${WRAPPER_ROOT}/")
+
+# Wrapper sources needed for a plugin.
+add_library(flutter_wrapper_plugin STATIC
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_PLUGIN}
+)
+apply_standard_settings(flutter_wrapper_plugin)
+set_target_properties(flutter_wrapper_plugin PROPERTIES
+  POSITION_INDEPENDENT_CODE ON)
+set_target_properties(flutter_wrapper_plugin PROPERTIES
+  CXX_VISIBILITY_PRESET hidden)
+target_link_libraries(flutter_wrapper_plugin PUBLIC flutter)
+target_include_directories(flutter_wrapper_plugin PUBLIC
+  "${WRAPPER_ROOT}/include"
+)
+add_dependencies(flutter_wrapper_plugin flutter_assemble)
+
+# Wrapper sources needed for the runner.
+add_library(flutter_wrapper_app STATIC
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_APP}
+)
+apply_standard_settings(flutter_wrapper_app)
+target_link_libraries(flutter_wrapper_app PUBLIC flutter)
+target_include_directories(flutter_wrapper_app PUBLIC
+  "${WRAPPER_ROOT}/include"
+)
+add_dependencies(flutter_wrapper_app flutter_assemble)
+
+# === Flutter tool backend ===
+# _phony_ is a non-existent file to force this command to run every time,
+# since currently there's no way to get a full input/output list from the
+# flutter tool.
+set(PHONY_OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/_phony_")
+set_source_files_properties("${PHONY_OUTPUT}" PROPERTIES SYMBOLIC TRUE)
+add_custom_command(
+  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
+    ${CPP_WRAPPER_SOURCES_CORE} ${CPP_WRAPPER_SOURCES_PLUGIN}
+    ${CPP_WRAPPER_SOURCES_APP}
+    ${PHONY_OUTPUT}
+  COMMAND ${CMAKE_COMMAND} -E env
+    ${FLUTTER_TOOL_ENVIRONMENT}
+    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.bat"
+      ${FLUTTER_TARGET_PLATFORM} $<CONFIG>
+  VERBATIM
+)
+add_custom_target(flutter_assemble DEPENDS
+  "${FLUTTER_LIBRARY}"
+  ${FLUTTER_LIBRARY_HEADERS}
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_PLUGIN}
+  ${CPP_WRAPPER_SOURCES_APP}
+)

windows/runner/CMakeLists.txt

@@ -0,0 +1,40 @@
+cmake_minimum_required(VERSION 3.14)
+project(runner LANGUAGES CXX)
+
+# Define the application target. To change its name, change BINARY_NAME in the
+# top-level CMakeLists.txt, not the value here, or `flutter run` will no longer
+# work.
+#
+# Any new source files that you add to the application should be added here.
+add_executable(${BINARY_NAME} WIN32
+  "flutter_window.cpp"
+  "main.cpp"
+  "utils.cpp"
+  "win32_window.cpp"
+  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
+  "Runner.rc"
+  "runner.exe.manifest"
+)
+
+# Apply the standard set of build settings. This can be removed for applications
+# that need different build settings.
+apply_standard_settings(${BINARY_NAME})
+
+# Add preprocessor definitions for the build version.
+target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION=\"${FLUTTER_VERSION}\"")
+target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_MAJOR=${FLUTTER_VERSION_MAJOR}")
+target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_MINOR=${FLUTTER_VERSION_MINOR}")
+target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_PATCH=${FLUTTER_VERSION_PATCH}")
+target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_BUILD=${FLUTTER_VERSION_BUILD}")
+
+# Disable Windows macros that collide with C++ standard library functions.
+target_compile_definitions(${BINARY_NAME} PRIVATE "NOMINMAX")
+
+# Add dependency libraries and include directories. Add any application-specific
+# dependencies here.
+target_link_libraries(${BINARY_NAME} PRIVATE flutter flutter_wrapper_app)
+target_link_libraries(${BINARY_NAME} PRIVATE "dwmapi.lib")
+target_include_directories(${BINARY_NAME} PRIVATE "${CMAKE_SOURCE_DIR}")
+
+# Run the Flutter tool portions of the build. This must not be removed.
+add_dependencies(${BINARY_NAME} flutter_assemble)

windows/runner/Runner.rc

@@ -0,0 +1,121 @@
+// Microsoft Visual C++ generated resource script.
+//
+#pragma code_page(65001)
+#include "resource.h"
+
+#define APSTUDIO_READONLY_SYMBOLS
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 2 resource.
+//
+#include "winres.h"
+
+/////////////////////////////////////////////////////////////////////////////
+#undef APSTUDIO_READONLY_SYMBOLS
+
+/////////////////////////////////////////////////////////////////////////////
+// English (United States) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
+
+#ifdef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// TEXTINCLUDE
+//
+
+1 TEXTINCLUDE
+BEGIN
+    "resource.h\0"
+END
+
+2 TEXTINCLUDE
+BEGIN
+    "#include ""winres.h""\r\n"
+    "\0"
+END
+
+3 TEXTINCLUDE
+BEGIN
+    "\r\n"
+    "\0"
+END
+
+#endif    // APSTUDIO_INVOKED
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Icon
+//
+
+// Icon with lowest ID value placed first to ensure application icon
+// remains consistent on all systems.
+IDI_APP_ICON            ICON                    "resources\\app_icon.ico"
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Version
+//
+
+#if defined(FLUTTER_VERSION_MAJOR) && defined(FLUTTER_VERSION_MINOR) && defined(FLUTTER_VERSION_PATCH) && defined(FLUTTER_VERSION_BUILD)
+#define VERSION_AS_NUMBER FLUTTER_VERSION_MAJOR,FLUTTER_VERSION_MINOR,FLUTTER_VERSION_PATCH,FLUTTER_VERSION_BUILD
+#else
+#define VERSION_AS_NUMBER 1,0,0,0
+#endif
+
+#if defined(FLUTTER_VERSION)
+#define VERSION_AS_STRING FLUTTER_VERSION
+#else
+#define VERSION_AS_STRING "1.0.0"
+#endif
+
+VS_VERSION_INFO VERSIONINFO
+ FILEVERSION VERSION_AS_NUMBER
+ PRODUCTVERSION VERSION_AS_NUMBER
+ FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
+#ifdef _DEBUG
+ FILEFLAGS VS_FF_DEBUG
+#else
+ FILEFLAGS 0x0L
+#endif
+ FILEOS VOS__WINDOWS32
+ FILETYPE VFT_APP
+ FILESUBTYPE 0x0L
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904e4"
+        BEGIN
+            VALUE "CompanyName", "dev.brammie15" "\0"
+            VALUE "FileDescription", "kooltab2" "\0"
+            VALUE "FileVersion", VERSION_AS_STRING "\0"
+            VALUE "InternalName", "kooltab2" "\0"
+            VALUE "LegalCopyright", "Copyright (C) 2026 dev.brammie15. All rights reserved." "\0"
+            VALUE "OriginalFilename", "kooltab2.exe" "\0"
+            VALUE "ProductName", "kooltab2" "\0"
+            VALUE "ProductVersion", VERSION_AS_STRING "\0"
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x409, 1252
+    END
+END
+
+#endif    // English (United States) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+
+#ifndef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 3 resource.
+//
+
+
+/////////////////////////////////////////////////////////////////////////////
+#endif    // not APSTUDIO_INVOKED

windows/runner/flutter_window.cpp

@@ -0,0 +1,71 @@
+#include "flutter_window.h"
+
+#include <optional>
+
+#include "flutter/generated_plugin_registrant.h"
+
+FlutterWindow::FlutterWindow(const flutter::DartProject& project)
+    : project_(project) {}
+
+FlutterWindow::~FlutterWindow() {}
+
+bool FlutterWindow::OnCreate() {
+  if (!Win32Window::OnCreate()) {
+    return false;
+  }
+
+  RECT frame = GetClientArea();
+
+  // The size here must match the window dimensions to avoid unnecessary surface
+  // creation / destruction in the startup path.
+  flutter_controller_ = std::make_unique<flutter::FlutterViewController>(
+      frame.right - frame.left, frame.bottom - frame.top, project_);
+  // Ensure that basic setup of the controller was successful.
+  if (!flutter_controller_->engine() || !flutter_controller_->view()) {
+    return false;
+  }
+  RegisterPlugins(flutter_controller_->engine());
+  SetChildContent(flutter_controller_->view()->GetNativeWindow());
+
+  flutter_controller_->engine()->SetNextFrameCallback([&]() {
+    this->Show();
+  });
+
+  // Flutter can complete the first frame before the "show window" callback is
+  // registered. The following call ensures a frame is pending to ensure the
+  // window is shown. It is a no-op if the first frame hasn't completed yet.
+  flutter_controller_->ForceRedraw();
+
+  return true;
+}
+
+void FlutterWindow::OnDestroy() {
+  if (flutter_controller_) {
+    flutter_controller_ = nullptr;
+  }
+
+  Win32Window::OnDestroy();
+}
+
+LRESULT
+FlutterWindow::MessageHandler(HWND hwnd, UINT const message,
+                              WPARAM const wparam,
+                              LPARAM const lparam) noexcept {
+  // Give Flutter, including plugins, an opportunity to handle window messages.
+  if (flutter_controller_) {
+    std::optional<LRESULT> result =
+        flutter_controller_->HandleTopLevelWindowProc(hwnd, message, wparam,
+                                                      lparam);
+    if (result) {
+      return *result;
+    }
+  }
+
+  switch (message) {
+    case WM_FONTCHANGE:
+      flutter_controller_->engine()->ReloadSystemFonts();
+      break;
+  }
+
+  return Win32Window::MessageHandler(hwnd, message, wparam, lparam);
+}

windows/runner/flutter_window.h

@@ -0,0 +1,33 @@
+#ifndef RUNNER_FLUTTER_WINDOW_H_
+#define RUNNER_FLUTTER_WINDOW_H_
+
+#include <flutter/dart_project.h>
+#include <flutter/flutter_view_controller.h>
+
+#include <memory>
+
+#include "win32_window.h"
+
+// A window that does nothing but host a Flutter view.
+class FlutterWindow : public Win32Window {
+ public:
+  // Creates a new FlutterWindow hosting a Flutter view running |project|.
+  explicit FlutterWindow(const flutter::DartProject& project);
+  virtual ~FlutterWindow();
+
+ protected:
+  // Win32Window:
+  bool OnCreate() override;
+  void OnDestroy() override;
+  LRESULT MessageHandler(HWND window, UINT const message, WPARAM const wparam,
+                         LPARAM const lparam) noexcept override;
+
+ private:
+  // The project to run.
+  flutter::DartProject project_;
+
+  // The Flutter instance hosted by this window.
+  std::unique_ptr<flutter::FlutterViewController> flutter_controller_;
+};
+
+#endif  // RUNNER_FLUTTER_WINDOW_H_

windows/runner/main.cpp

@@ -0,0 +1,43 @@
+#include <flutter/dart_project.h>
+#include <flutter/flutter_view_controller.h>
+#include <windows.h>
+
+#include "flutter_window.h"
+#include "utils.h"
+
+int APIENTRY wWinMain(_In_ HINSTANCE instance, _In_opt_ HINSTANCE prev,
+                      _In_ wchar_t *command_line, _In_ int show_command) {
+  // Attach to console when present (e.g., 'flutter run') or create a
+  // new console when running with a debugger.
+  if (!::AttachConsole(ATTACH_PARENT_PROCESS) && ::IsDebuggerPresent()) {
+    CreateAndAttachConsole();
+  }
+
+  // Initialize COM, so that it is available for use in the library and/or
+  // plugins.
+  ::CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED);
+
+  flutter::DartProject project(L"data");
+
+  std::vector<std::string> command_line_arguments =
+      GetCommandLineArguments();
+
+  project.set_dart_entrypoint_arguments(std::move(command_line_arguments));
+
+  FlutterWindow window(project);
+  Win32Window::Point origin(10, 10);
+  Win32Window::Size size(1280, 720);
+  if (!window.Create(L"kooltab2", origin, size)) {
+    return EXIT_FAILURE;
+  }
+  window.SetQuitOnClose(true);
+
+  ::MSG msg;
+  while (::GetMessage(&msg, nullptr, 0, 0)) {
+    ::TranslateMessage(&msg);
+    ::DispatchMessage(&msg);
+  }
+
+  ::CoUninitialize();
+  return EXIT_SUCCESS;
+}

windows/runner/resource.h

@@ -0,0 +1,16 @@
+//{{NO_DEPENDENCIES}}
+// Microsoft Visual C++ generated include file.
+// Used by Runner.rc
+//
+#define IDI_APP_ICON                    101
+
+// Next default values for new objects
+//
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NEXT_RESOURCE_VALUE        102
+#define _APS_NEXT_COMMAND_VALUE         40001
+#define _APS_NEXT_CONTROL_VALUE         1001
+#define _APS_NEXT_SYMED_VALUE           101
+#endif
+#endif

windows/runner/runner.exe.manifest

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+  <application xmlns="urn:schemas-microsoft-com:asm.v3">
+    <windowsSettings>
+      <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2</dpiAwareness>
+    </windowsSettings>
+  </application>
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- Windows 10 and Windows 11 -->
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>
+    </application>
+  </compatibility>
+</assembly>

windows/runner/utils.cpp

@@ -0,0 +1,69 @@
+#include "utils.h"
+
+#include <flutter_windows.h>
+#include <io.h>
+#include <stdio.h>
+#include <windows.h>
+
+#include <iostream>
+
+void CreateAndAttachConsole() {
+  if (::AllocConsole()) {
+    FILE *unused;
+    if (freopen_s(&unused, "CONOUT$", "w", stdout)) {
+      _dup2(_fileno(stdout), 1);
+    }
+    if (freopen_s(&unused, "CONOUT$", "w", stderr)) {
+      _dup2(_fileno(stdout), 2);
+    }
+    std::ios::sync_with_stdio();
+    FlutterDesktopResyncOutputStreams();
+  }
+}
+
+std::vector<std::string> GetCommandLineArguments() {
+  // Convert the UTF-16 command line arguments to UTF-8 for the Engine to use.
+  int argc;
+  wchar_t** argv = ::CommandLineToArgvW(::GetCommandLineW(), &argc);
+  if (argv == nullptr) {
+    return std::vector<std::string>();
+  }
+
+  std::vector<std::string> command_line_arguments;
+
+  // Skip the first argument as it's the binary name.
+  for (int i = 1; i < argc; i++) {
+    command_line_arguments.push_back(Utf8FromUtf16(argv[i]));
+  }
+
+  ::LocalFree(argv);
+
+  return command_line_arguments;
+}
+
+std::string Utf8FromUtf16(const wchar_t* utf16_string) {
+  if (utf16_string == nullptr) {
+    return std::string();
+  }
+  // First, find the length of the string with a safe upper bound (CWE-126).
+  // UNICODE_STRING_MAX_CHARS (32767) is the maximum length of a UNICODE_STRING.
+  int input_length = static_cast<int>(wcsnlen(utf16_string, UNICODE_STRING_MAX_CHARS));
+  // Now use that bounded length to determine the required buffer size.
+  // When an explicit length is passed, WideCharToMultiByte does not include
+  // the null terminator in its returned size.
+  int target_length = ::WideCharToMultiByte(
+      CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string,
+      input_length, nullptr, 0, nullptr, nullptr);
+  std::string utf8_string;
+  if (target_length == 0 || static_cast<size_t>(target_length) > utf8_string.max_size()) {
+    return utf8_string;
+  }
+  utf8_string.resize(target_length);
+  int converted_length = ::WideCharToMultiByte(
+      CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string,
+      input_length, utf8_string.data(), target_length, nullptr, nullptr);
+  if (converted_length == 0) {
+    return std::string();
+  }
+  return utf8_string;
+}

windows/runner/utils.h

@@ -0,0 +1,19 @@
+#ifndef RUNNER_UTILS_H_
+#define RUNNER_UTILS_H_
+
+#include <string>
+#include <vector>
+
+// Creates a console for the process, and redirects stdout and stderr to
+// it for both the runner and the Flutter library.
+void CreateAndAttachConsole();
+
+// Takes a null-terminated wchar_t* encoded in UTF-16 and returns a std::string
+// encoded in UTF-8. Returns an empty std::string on failure.
+std::string Utf8FromUtf16(const wchar_t* utf16_string);
+
+// Gets the command line arguments passed in as a std::vector<std::string>,
+// encoded in UTF-8. Returns an empty std::vector<std::string> on failure.
+std::vector<std::string> GetCommandLineArguments();
+
+#endif  // RUNNER_UTILS_H_

windows/runner/win32_window.cpp

@@ -0,0 +1,288 @@
+#include "win32_window.h"
+
+#include <dwmapi.h>
+#include <flutter_windows.h>
+
+#include "resource.h"
+
+namespace {
+
+/// Window attribute that enables dark mode window decorations.
+///
+/// Redefined in case the developer's machine has a Windows SDK older than
+/// version 10.0.22000.0.
+/// See: https://docs.microsoft.com/windows/win32/api/dwmapi/ne-dwmapi-dwmwindowattribute
+#ifndef DWMWA_USE_IMMERSIVE_DARK_MODE
+#define DWMWA_USE_IMMERSIVE_DARK_MODE 20
+#endif
+
+constexpr const wchar_t kWindowClassName[] = L"FLUTTER_RUNNER_WIN32_WINDOW";
+
+/// Registry key for app theme preference.
+///
+/// A value of 0 indicates apps should use dark mode. A non-zero or missing
+/// value indicates apps should use light mode.
+constexpr const wchar_t kGetPreferredBrightnessRegKey[] =
+  L"Software\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize";
+constexpr const wchar_t kGetPreferredBrightnessRegValue[] = L"AppsUseLightTheme";
+
+// The number of Win32Window objects that currently exist.
+static int g_active_window_count = 0;
+
+using EnableNonClientDpiScaling = BOOL __stdcall(HWND hwnd);
+
+// Scale helper to convert logical scaler values to physical using passed in
+// scale factor
+int Scale(int source, double scale_factor) {
+  return static_cast<int>(source * scale_factor);
+}
+
+// Dynamically loads the |EnableNonClientDpiScaling| from the User32 module.
+// This API is only needed for PerMonitor V1 awareness mode.
+void EnableFullDpiSupportIfAvailable(HWND hwnd) {
+  HMODULE user32_module = LoadLibraryA("User32.dll");
+  if (!user32_module) {
+    return;
+  }
+  auto enable_non_client_dpi_scaling =
+      reinterpret_cast<EnableNonClientDpiScaling*>(
+          GetProcAddress(user32_module, "EnableNonClientDpiScaling"));
+  if (enable_non_client_dpi_scaling != nullptr) {
+    enable_non_client_dpi_scaling(hwnd);
+  }
+  FreeLibrary(user32_module);
+}
+
+}  // namespace
+
+// Manages the Win32Window's window class registration.
+class WindowClassRegistrar {
+ public:
+  ~WindowClassRegistrar() = default;
+
+  // Returns the singleton registrar instance.
+  static WindowClassRegistrar* GetInstance() {
+    if (!instance_) {
+      instance_ = new WindowClassRegistrar();
+    }
+    return instance_;
+  }
+
+  // Returns the name of the window class, registering the class if it hasn't
+  // previously been registered.
+  const wchar_t* GetWindowClass();
+
+  // Unregisters the window class. Should only be called if there are no
+  // instances of the window.
+  void UnregisterWindowClass();
+
+ private:
+  WindowClassRegistrar() = default;
+
+  static WindowClassRegistrar* instance_;
+
+  bool class_registered_ = false;
+};
+
+WindowClassRegistrar* WindowClassRegistrar::instance_ = nullptr;
+
+const wchar_t* WindowClassRegistrar::GetWindowClass() {
+  if (!class_registered_) {
+    WNDCLASS window_class{};
+    window_class.hCursor = LoadCursor(nullptr, IDC_ARROW);
+    window_class.lpszClassName = kWindowClassName;
+    window_class.style = CS_HREDRAW | CS_VREDRAW;
+    window_class.cbClsExtra = 0;
+    window_class.cbWndExtra = 0;
+    window_class.hInstance = GetModuleHandle(nullptr);
+    window_class.hIcon =
+        LoadIcon(window_class.hInstance, MAKEINTRESOURCE(IDI_APP_ICON));
+    window_class.hbrBackground = 0;
+    window_class.lpszMenuName = nullptr;
+    window_class.lpfnWndProc = Win32Window::WndProc;
+    RegisterClass(&window_class);
+    class_registered_ = true;
+  }
+  return kWindowClassName;
+}
+
+void WindowClassRegistrar::UnregisterWindowClass() {
+  UnregisterClass(kWindowClassName, nullptr);
+  class_registered_ = false;
+}
+
+Win32Window::Win32Window() {
+  ++g_active_window_count;
+}
+
+Win32Window::~Win32Window() {
+  --g_active_window_count;
+  Destroy();
+}
+
+bool Win32Window::Create(const std::wstring& title,
+                         const Point& origin,
+                         const Size& size) {
+  Destroy();
+
+  const wchar_t* window_class =
+      WindowClassRegistrar::GetInstance()->GetWindowClass();
+
+  const POINT target_point = {static_cast<LONG>(origin.x),
+                              static_cast<LONG>(origin.y)};
+  HMONITOR monitor = MonitorFromPoint(target_point, MONITOR_DEFAULTTONEAREST);
+  UINT dpi = FlutterDesktopGetDpiForMonitor(monitor);
+  double scale_factor = dpi / 96.0;
+
+  HWND window = CreateWindow(
+      window_class, title.c_str(), WS_OVERLAPPEDWINDOW,
+      Scale(origin.x, scale_factor), Scale(origin.y, scale_factor),
+      Scale(size.width, scale_factor), Scale(size.height, scale_factor),
+      nullptr, nullptr, GetModuleHandle(nullptr), this);
+
+  if (!window) {
+    return false;
+  }
+
+  UpdateTheme(window);
+
+  return OnCreate();
+}
+
+bool Win32Window::Show() {
+  return ShowWindow(window_handle_, SW_SHOWNORMAL);
+}
+
+// static
+LRESULT CALLBACK Win32Window::WndProc(HWND const window,
+                                      UINT const message,
+                                      WPARAM const wparam,
+                                      LPARAM const lparam) noexcept {
+  if (message == WM_NCCREATE) {
+    auto window_struct = reinterpret_cast<CREATESTRUCT*>(lparam);
+    SetWindowLongPtr(window, GWLP_USERDATA,
+                     reinterpret_cast<LONG_PTR>(window_struct->lpCreateParams));
+
+    auto that = static_cast<Win32Window*>(window_struct->lpCreateParams);
+    EnableFullDpiSupportIfAvailable(window);
+    that->window_handle_ = window;
+  } else if (Win32Window* that = GetThisFromHandle(window)) {
+    return that->MessageHandler(window, message, wparam, lparam);
+  }
+
+  return DefWindowProc(window, message, wparam, lparam);
+}
+
+LRESULT
+Win32Window::MessageHandler(HWND hwnd,
+                            UINT const message,
+                            WPARAM const wparam,
+                            LPARAM const lparam) noexcept {
+  switch (message) {
+    case WM_DESTROY:
+      window_handle_ = nullptr;
+      Destroy();
+      if (quit_on_close_) {
+        PostQuitMessage(0);
+      }
+      return 0;
+
+    case WM_DPICHANGED: {
+      auto newRectSize = reinterpret_cast<RECT*>(lparam);
+      LONG newWidth = newRectSize->right - newRectSize->left;
+      LONG newHeight = newRectSize->bottom - newRectSize->top;
+
+      SetWindowPos(hwnd, nullptr, newRectSize->left, newRectSize->top, newWidth,
+                   newHeight, SWP_NOZORDER | SWP_NOACTIVATE);
+
+      return 0;
+    }
+    case WM_SIZE: {
+      RECT rect = GetClientArea();
+      if (child_content_ != nullptr) {
+        // Size and position the child window.
+        MoveWindow(child_content_, rect.left, rect.top, rect.right - rect.left,
+                   rect.bottom - rect.top, TRUE);
+      }
+      return 0;
+    }
+
+    case WM_ACTIVATE:
+      if (child_content_ != nullptr) {
+        SetFocus(child_content_);
+      }
+      return 0;
+
+    case WM_DWMCOLORIZATIONCOLORCHANGED:
+      UpdateTheme(hwnd);
+      return 0;
+  }
+
+  return DefWindowProc(window_handle_, message, wparam, lparam);
+}
+
+void Win32Window::Destroy() {
+  OnDestroy();
+
+  if (window_handle_) {
+    DestroyWindow(window_handle_);
+    window_handle_ = nullptr;
+  }
+  if (g_active_window_count == 0) {
+    WindowClassRegistrar::GetInstance()->UnregisterWindowClass();
+  }
+}
+
+Win32Window* Win32Window::GetThisFromHandle(HWND const window) noexcept {
+  return reinterpret_cast<Win32Window*>(
+      GetWindowLongPtr(window, GWLP_USERDATA));
+}
+
+void Win32Window::SetChildContent(HWND content) {
+  child_content_ = content;
+  SetParent(content, window_handle_);
+  RECT frame = GetClientArea();
+
+  MoveWindow(content, frame.left, frame.top, frame.right - frame.left,
+             frame.bottom - frame.top, true);
+
+  SetFocus(child_content_);
+}
+
+RECT Win32Window::GetClientArea() {
+  RECT frame;
+  GetClientRect(window_handle_, &frame);
+  return frame;
+}
+
+HWND Win32Window::GetHandle() {
+  return window_handle_;
+}
+
+void Win32Window::SetQuitOnClose(bool quit_on_close) {
+  quit_on_close_ = quit_on_close;
+}
+
+bool Win32Window::OnCreate() {
+  // No-op; provided for subclasses.
+  return true;
+}
+
+void Win32Window::OnDestroy() {
+  // No-op; provided for subclasses.
+}
+
+void Win32Window::UpdateTheme(HWND const window) {
+  DWORD light_mode;
+  DWORD light_mode_size = sizeof(light_mode);
+  LSTATUS result = RegGetValue(HKEY_CURRENT_USER, kGetPreferredBrightnessRegKey,
+                               kGetPreferredBrightnessRegValue,
+                               RRF_RT_REG_DWORD, nullptr, &light_mode,
+                               &light_mode_size);
+
+  if (result == ERROR_SUCCESS) {
+    BOOL enable_dark_mode = light_mode == 0;
+    DwmSetWindowAttribute(window, DWMWA_USE_IMMERSIVE_DARK_MODE,
+                          &enable_dark_mode, sizeof(enable_dark_mode));
+  }
+}

windows/runner/win32_window.h

@@ -0,0 +1,102 @@
+#ifndef RUNNER_WIN32_WINDOW_H_
+#define RUNNER_WIN32_WINDOW_H_
+
+#include <windows.h>
+
+#include <functional>
+#include <memory>
+#include <string>
+
+// A class abstraction for a high DPI-aware Win32 Window. Intended to be
+// inherited from by classes that wish to specialize with custom
+// rendering and input handling
+class Win32Window {
+ public:
+  struct Point {
+    unsigned int x;
+    unsigned int y;
+    Point(unsigned int x, unsigned int y) : x(x), y(y) {}
+  };
+
+  struct Size {
+    unsigned int width;
+    unsigned int height;
+    Size(unsigned int width, unsigned int height)
+        : width(width), height(height) {}
+  };
+
+  Win32Window();
+  virtual ~Win32Window();
+
+  // Creates a win32 window with |title| that is positioned and sized using
+  // |origin| and |size|. New windows are created on the default monitor. Window
+  // sizes are specified to the OS in physical pixels, hence to ensure a
+  // consistent size this function will scale the inputted width and height as
+  // as appropriate for the default monitor. The window is invisible until
+  // |Show| is called. Returns true if the window was created successfully.
+  bool Create(const std::wstring& title, const Point& origin, const Size& size);
+
+  // Show the current window. Returns true if the window was successfully shown.
+  bool Show();
+
+  // Release OS resources associated with window.
+  void Destroy();
+
+  // Inserts |content| into the window tree.
+  void SetChildContent(HWND content);
+
+  // Returns the backing Window handle to enable clients to set icon and other
+  // window properties. Returns nullptr if the window has been destroyed.
+  HWND GetHandle();
+
+  // If true, closing this window will quit the application.
+  void SetQuitOnClose(bool quit_on_close);
+
+  // Return a RECT representing the bounds of the current client area.
+  RECT GetClientArea();
+
+ protected:
+  // Processes and route salient window messages for mouse handling,
+  // size change and DPI. Delegates handling of these to member overloads that
+  // inheriting classes can handle.
+  virtual LRESULT MessageHandler(HWND window,
+                                 UINT const message,
+                                 WPARAM const wparam,
+                                 LPARAM const lparam) noexcept;
+
+  // Called when CreateAndShow is called, allowing subclass window-related
+  // setup. Subclasses should return false if setup fails.
+  virtual bool OnCreate();
+
+  // Called when Destroy is called.
+  virtual void OnDestroy();
+
+ private:
+  friend class WindowClassRegistrar;
+
+  // OS callback called by message pump. Handles the WM_NCCREATE message which
+  // is passed when the non-client area is being created and enables automatic
+  // non-client DPI scaling so that the non-client area automatically
+  // responds to changes in DPI. All other messages are handled by
+  // MessageHandler.
+  static LRESULT CALLBACK WndProc(HWND const window,
+                                  UINT const message,
+                                  WPARAM const wparam,
+                                  LPARAM const lparam) noexcept;
+
+  // Retrieves a class instance pointer for |window|
+  static Win32Window* GetThisFromHandle(HWND const window) noexcept;
+
+  // Update the window frame's theme to match the system theme.
+  static void UpdateTheme(HWND const window);
+
+  bool quit_on_close_ = false;
+
+  // window handle for top level window.
+  HWND window_handle_ = nullptr;
+
+  // window handle for hosted content.
+  HWND child_content_ = nullptr;
+};
+
+#endif  // RUNNER_WIN32_WINDOW_H_