import '../models/app_error.dart';
import 'app_localizations.dart';

extension AppLocalizationsHelpers on AppLocalizations {
  String categoryLabel(String category) {
    return switch (category.trim().toLowerCase()) {
      'bier' || 'beer' => categoryBeer,
      'wijn' || 'wine' => categoryWine,
      'frisdrank' || 'soft drinks' => categorySoftDrinks,
      'cocktails' => categoryCocktails,
      'snacks' => categorySnacks,
      'coffee' || 'koffie' => categoryCoffee,
      'thee' || 'tea' => categoryTea,
      'other' || 'overig' => categoryOther,
      _ => category,
    };
  }

  String errorText(AppError? error) {
    return switch (error) {
      null => genericError,
      AppError.loadBar => couldNotLoadBar,
      AppError.createTab => couldNotCreateTabMessage,
      AppError.outOfStock => productOutOfStock,
      AppError.addProductToTab => couldNotAddProductToTab,
      AppError.updateQuantity => couldNotUpdateQuantity,
      AppError.closeTab => couldNotCloseTab,
      AppError.renameTab => couldNotRenameTab,
      AppError.deleteTab => couldNotDeleteTab,
      AppError.loadHistory => couldNotLoadHistory,
      AppError.loadMoreTabs => couldNotLoadMoreTabs,
      AppError.loadProducts => couldNotLoadProducts,
      AppError.addProduct => couldNotAddProduct,
      AppError.updateProduct => couldNotUpdateProduct,
      AppError.deleteProduct => couldNotDeleteProduct,
      AppError.checkPinStatus => couldNotCheckPinStatus,
      AppError.savePin => couldNotSavePin,
      AppError.incorrectPin => incorrectPin,
      AppError.verifyPin => couldNotVerifyPin,
      AppError.currentPinIncorrect => currentPinIncorrect,
      AppError.tooManyPinAttempts => tooManyPinAttempts,
      AppError.loadSettings => couldNotLoadSettings,
      AppError.saveSettings => couldNotSaveSettings,
    };
  }

  /// Update messages still come from the OTA plugin as plain strings.
  String _updateMessage(String? message) {
    return switch (message) {
      'Update failed' => updateFailed,
      'Download failed' => downloadFailed,
      'Installation failed' => installationFailed,
      'Update already in progress' => updateAlreadyInProgress,
      _ => message ?? genericError,
    };
  }

  String updateStatus(String status) {
    if (status.startsWith('Downloading ')) {
      return downloading(status.substring('Downloading '.length));
    }

    return switch (status) {
      'Preparing download…' => preparingDownload,
      'Download failed' => downloadFailed,
      'Installing update…' => installingUpdate,
      'Update installed! Restarting…' => updateInstalledRestarting,
      'Installation failed' => installationFailed,
      'Update already running' => updateAlreadyRunning,
      _ => status,
    };
  }

  String updateError(String? message) {
    if (message == null) return updateFailed;
    if (message.startsWith('Download failed')) return downloadFailedWithDetail;
    if (message.startsWith('Installation failed')) {
      return installationFailedWithDetail;
    }
    if (message == 'Simulated download error (network timeout)') {
      return simulatedDownloadError;
    }
    if (message == 'Update already in progress') return updateAlreadyInProgress;

    return _updateMessage(message);
  }

  String devAction(String? message) {
    if (message == null) return '';

    final seeded = RegExp(
      r'Seeded (?:default products )?\((\d+) total\)',
    ).firstMatch(message);
    if (seeded != null) {
      return devActionSeededProducts(int.parse(seeded.group(1)!));
    }

    final reseeded = RegExp(
      r'Cleared and reseeded \((\d+) products\)',
    ).firstMatch(message);
    if (reseeded != null) {
      return devActionReseededProducts(int.parse(reseeded.group(1)!));
    }

    final resetStock = RegExp(
      r'Reset stock for (\d+) products',
    ).firstMatch(message);
    if (resetStock != null) {
      return devActionResetStock(int.parse(resetStock.group(1)!));
    }

    final seededDemo = RegExp(
      r'Seeded (\d+) demo products',
    ).firstMatch(message);
    if (seededDemo != null) {
      return devActionSeededProducts(int.parse(seededDemo.group(1)!));
    }

    final testTab = RegExp(
      r'Created test tab with (\d+) items',
    ).firstMatch(message);
    if (testTab != null) {
      return devActionTestTab(int.parse(testTab.group(1)!));
    }

    final testProducts = RegExp(
      r'Added (\d+) test products',
    ).firstMatch(message);
    if (testProducts != null) {
      return devActionTestProducts(int.parse(testProducts.group(1)!));
    }

    final lowStock = RegExp(
      r'Simulated low stock for (\d+) products',
    ).firstMatch(message);
    if (lowStock != null) {
      return devActionLowStock(int.parse(lowStock.group(1)!));
    }

    final mockOrders = RegExp(
      r'Generated (\d+) mock orders across (\d+) customers',
    ).firstMatch(message);
    if (mockOrders != null) {
      return devActionMockOrders(
        int.parse(mockOrders.group(1)!),
        int.parse(mockOrders.group(2)!),
      );
    }

    return switch (message) {
      'Cleared all open tabs' => devActionClearedOpenTabs,
      'Cleared closed tab history' => devActionClearedHistory,
      'Cleared all products' => devActionClearedProducts,
      'Product images cleared' => devActionImagesCleared,
      'PIN reset (no PIN required)' => devActionResetPin,
      'No products to add to test tab' => devActionNoProducts,
      'No products available — seed demo data first' => devActionNoProducts,
      'Product images reloaded' => devActionImagesReloaded,
      'Image cache cleared (no-op in debug mode)' => devActionCacheCleared,
      _ when message.startsWith('Failed to clear images') =>
        devActionFailedImages,
      _ => message,
    };
  }
}