@echo off
setlocal EnableExtensions DisableDelayedExpansion

cd /d "%~dp0"

echo.
powershell -NoProfile -ExecutionPolicy Bypass -Command ^
    "$content = [IO.File]::ReadAllText('pubspec.yaml'); " ^
    "$match = [regex]::Match($content, '(?m)(?:\A|\r?\n)version:[ \t]*([^\r\n]*)'); " ^
    "if (-not $match.Success) { Write-Error 'Could not find the version line in pubspec.yaml.'; exit 1 }; " ^
    "Write-Output ('Current version: ' + $match.Groups[1].Value.Trim())"

if errorlevel 1 (
    echo Could not read the current version. Release cancelled.
    exit /b 1
)

set "APP_VERSION="
set /p "APP_VERSION=Enter release version (for example 1.0.10 or 1.0.10+2): "

if not defined APP_VERSION (
    echo No version entered. Release cancelled.
    exit /b 1
)

powershell -NoProfile -ExecutionPolicy Bypass -Command ^
    "$version = $env:APP_VERSION; " ^
    "if ($version -notmatch '\A[0-9]+\.[0-9]+\.[0-9]+(\+[0-9]+)?\z') { " ^
    "    Write-Error 'Use a version like 1.0.10 or 1.0.10+2.'; exit 1 " ^
    "}; " ^
    "$path = 'pubspec.yaml'; " ^
    "$content = [IO.File]::ReadAllText($path); " ^
    "$updated = ([regex]::new('(?m)(\A|\r?\n)version:[^\r\n]*')).Replace($content, ('${1}version: ' + $version), 1); " ^
    "if ($updated -eq $content) { Write-Error 'Could not find the version line in pubspec.yaml.'; exit 1 }; " ^
    "[IO.File]::WriteAllText($path, $updated)"

if errorlevel 1 (
    echo Version update failed. Release cancelled.
    exit /b 1
)

echo Updated pubspec.yaml to version %APP_VERSION%.
echo Building release APK...
flutter build apk --release

if errorlevel 1 (
    echo Release APK build failed.
    exit /b 1
)

echo Release APK created at build\app\outputs\flutter-apk\app-release.apk
endlocal