import 'package:flutter/material.dart';
import 'package:siro_driver/constant/style.dart';
import '../../constant/colors.dart';

/// ملاحظة مهمة: لا تستعمل هنا getters من `AppColor` التي تقرأ `Get.isDarkMode`
/// (مثل `writeColor` و`cardColor`). هذا الملف يُنفَّذ **مرة واحدة عند التحميل**،
/// فتُخبَّأ قيمة الوضع الحالي داخل الثيمين معاً ⇒ الثيم الفاتح يرث ألوان الداكن
/// (أو العكس) حسب ما كان الوضع وقت الإقلاع. الألوان هنا تُمرَّر صراحةً لكل ثيم.
ThemeData _createTheme({
  required Brightness brightness,
  required String fontFamily,
  required Color scaffoldBackgroundColor,
  required Color cardColor,
  required Color dividerColor,
  required Color textColor,
  required Color secondaryTextColor,
}) {
  final isDark = brightness == Brightness.dark;
  // في الوضع الداكن يصبح النيفي الداكن غير مقروء على خلفية داكنة،
  // فنستعمل لون العلامة الفاتح (Periwinkle) للعناصر التفاعلية.
  final interactive =
      isDark ? AppColor.secondaryColorStatic : AppColor.primaryColor;

  return ThemeData(
    brightness: brightness,
    fontFamily: fontFamily,
    scaffoldBackgroundColor: scaffoldBackgroundColor,
    cardColor: cardColor,
    dividerColor: dividerColor,
    primaryColor: AppColor.primaryColor,
    splashFactory: InkSparkle.splashFactory,
    colorScheme: ColorScheme.fromSeed(
      seedColor: AppColor.primaryColor,
      brightness: brightness,
      primary: interactive,
      onPrimary: isDark ? AppColor.primaryColor : Colors.white,
      secondary: AppColor.secondaryColorStatic,
      surface: cardColor,
      onSurface: textColor,
      error: AppColor.redColor,
    ),
    textTheme: TextTheme(
      displayLarge: AppStyle.headTitle.copyWith(color: textColor),
      displayMedium: AppStyle.headTitle2.copyWith(color: textColor),
      displaySmall: AppStyle.title.copyWith(color: textColor),
      titleLarge: AppStyle.headTitle2.copyWith(color: textColor, fontSize: 20),
      titleMedium: AppStyle.title
          .copyWith(color: textColor, fontWeight: FontWeight.w600),
      bodyLarge: AppStyle.title.copyWith(color: textColor),
      bodyMedium: AppStyle.title.copyWith(color: textColor, fontSize: 14),
      bodySmall: AppStyle.title.copyWith(color: secondaryTextColor, fontSize: 13),
      labelLarge: AppStyle.title
          .copyWith(color: textColor, fontWeight: FontWeight.w600, fontSize: 15),
      labelMedium: AppStyle.subtitle.copyWith(color: secondaryTextColor),
    ),
    appBarTheme: AppBarTheme(
      elevation: 0,
      scrolledUnderElevation: 0,
      backgroundColor: scaffoldBackgroundColor,
      foregroundColor: textColor,
      centerTitle: true,
      iconTheme: IconThemeData(color: textColor),
      actionsIconTheme: IconThemeData(color: textColor),
      titleTextStyle: AppStyle.headTitle2.copyWith(
        color: textColor,
        fontSize: 19,
      ),
    ),
    dialogTheme: DialogThemeData(
      backgroundColor: cardColor,
      contentTextStyle: AppStyle.title.copyWith(color: textColor),
      titleTextStyle: AppStyle.headTitle2.copyWith(color: textColor, fontSize: 20),
      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20)),
    ),
    cardTheme: CardThemeData(
      color: cardColor,
      elevation: 0,
      margin: EdgeInsets.zero,
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.circular(18),
        side: BorderSide(color: dividerColor),
      ),
    ),
    listTileTheme: ListTileThemeData(
      iconColor: secondaryTextColor,
      textColor: textColor,
      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(14)),
    ),
    dividerTheme: DividerThemeData(
      color: dividerColor,
      thickness: 1,
      space: 1,
    ),
    chipTheme: ChipThemeData(
      backgroundColor: interactive.withValues(alpha: 0.10),
      side: BorderSide.none,
      labelStyle: AppStyle.subtitle.copyWith(color: textColor),
      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(999)),
    ),
    elevatedButtonTheme: ElevatedButtonThemeData(
      style: ElevatedButton.styleFrom(
        backgroundColor: interactive,
        foregroundColor: isDark ? AppColor.primaryColor : Colors.white,
        elevation: 0,
        minimumSize: const Size(0, 50),
        padding: const EdgeInsets.symmetric(horizontal: 20),
        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(14)),
        textStyle: const TextStyle(fontWeight: FontWeight.bold, fontSize: 15),
      ),
    ),
    outlinedButtonTheme: OutlinedButtonThemeData(
      style: OutlinedButton.styleFrom(
        foregroundColor: interactive,
        minimumSize: const Size(0, 50),
        side: BorderSide(color: interactive.withValues(alpha: 0.5)),
        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(14)),
        textStyle: const TextStyle(fontWeight: FontWeight.w600, fontSize: 15),
      ),
    ),
    textButtonTheme: TextButtonThemeData(
      style: TextButton.styleFrom(
        foregroundColor: interactive,
        textStyle: const TextStyle(fontWeight: FontWeight.w600),
      ),
    ),
    snackBarTheme: SnackBarThemeData(
      behavior: SnackBarBehavior.floating,
      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(14)),
    ),
    progressIndicatorTheme: ProgressIndicatorThemeData(color: interactive),
    inputDecorationTheme: InputDecorationTheme(
      filled: true,
      fillColor: isDark ? Colors.white.withValues(alpha: 0.04) : cardColor,
      hintStyle: AppStyle.title.copyWith(color: secondaryTextColor, fontSize: 14),
      contentPadding:
          const EdgeInsets.symmetric(horizontal: 16, vertical: 14),
      border: OutlineInputBorder(
        borderRadius: BorderRadius.circular(14),
        borderSide: BorderSide(color: dividerColor),
      ),
      enabledBorder: OutlineInputBorder(
        borderRadius: BorderRadius.circular(14),
        borderSide: BorderSide(color: dividerColor),
      ),
      focusedBorder: OutlineInputBorder(
        borderRadius: BorderRadius.circular(14),
        borderSide: BorderSide(color: interactive, width: 1.5),
      ),
      errorBorder: OutlineInputBorder(
        borderRadius: BorderRadius.circular(14),
        borderSide: const BorderSide(color: AppColor.redColor),
      ),
    ),
    bottomSheetTheme: BottomSheetThemeData(
      backgroundColor: cardColor,
      surfaceTintColor: Colors.transparent,
      shape: const RoundedRectangleBorder(
        borderRadius: BorderRadius.vertical(top: Radius.circular(24)),
      ),
    ),
  );
}

// --- ألوان الأسطح: فاتح ---
const Color _lightBg = Color(0xFFF6F8FA);
const Color _lightCard = Color(0xFFFFFFFF);
const Color _lightDivider = Color(0xFFE6EAF0);
const Color _lightText = Color(0xFF0F172A);
const Color _lightTextSecondary = Color(0xFF64748B);

// --- ألوان الأسطح: داكن ---
const Color _darkBg = Color(0xFF0F1424);
const Color _darkCard = Color(0xFF171D33);
const Color _darkDivider = Color(0xFF262E4A);
const Color _darkText = Color(0xFFF1F5F9);
const Color _darkTextSecondary = Color(0xFF94A3B8);

ThemeData lightThemeEnglish = _createTheme(
  brightness: Brightness.light,
  fontFamily: 'CupertinoSystemText', // Native fallback
  scaffoldBackgroundColor: _lightBg,
  cardColor: _lightCard,
  dividerColor: _lightDivider,
  textColor: _lightText,
  secondaryTextColor: _lightTextSecondary,
);

ThemeData darkThemeEnglish = _createTheme(
  brightness: Brightness.dark,
  fontFamily: 'CupertinoSystemText',
  scaffoldBackgroundColor: _darkBg,
  cardColor: _darkCard,
  dividerColor: _darkDivider,
  textColor: _darkText,
  secondaryTextColor: _darkTextSecondary,
);

ThemeData lightThemeArabic = _createTheme(
  brightness: Brightness.light,
  fontFamily: 'CupertinoSystemText',
  scaffoldBackgroundColor: _lightBg,
  cardColor: _lightCard,
  dividerColor: _lightDivider,
  textColor: _lightText,
  secondaryTextColor: _lightTextSecondary,
);

ThemeData darkThemeArabic = _createTheme(
  brightness: Brightness.dark,
  fontFamily: 'CupertinoSystemText',
  scaffoldBackgroundColor: _darkBg,
  cardColor: _darkCard,
  dividerColor: _darkDivider,
  textColor: _darkText,
  secondaryTextColor: _darkTextSecondary,
);