import 'package:flutter/material.dart';
import 'app_colors.dart';

/// Central theme definition for car64.
class AppTheme {
  AppTheme._();

  // ─────────────────────────── LIGHT ───────────────────────────────────
  static ThemeData get light {
    final colorScheme = ColorScheme.fromSeed(
      seedColor: AppColors.orange,
      primary: AppColors.orange,
      secondary: AppColors.navy,
      surface: AppColors.cardLight,
      error: AppColors.error,
    );

    return ThemeData(
      useMaterial3: true,
      colorScheme: colorScheme,
      fontFamily: 'Poppins',
      scaffoldBackgroundColor: AppColors.backgroundLight,

      // ── AppBar ──
      appBarTheme: const AppBarTheme(
        backgroundColor: Colors.transparent,
        foregroundColor: AppColors.textPrimary,
        elevation: 0,
        centerTitle: true,
        titleTextStyle: TextStyle(
          fontFamily: 'Poppins',
          fontWeight: FontWeight.w600,
          fontSize: 20,
          color: AppColors.textPrimary,
        ),
      ),

      // ── Cards ──
      cardTheme: CardThemeData(
        color: AppColors.cardLight,
        elevation: 2,
        shadowColor: Colors.black12,
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(16),
        ),
        margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 6),
      ),

      // ── Elevated buttons ──
      elevatedButtonTheme: ElevatedButtonThemeData(
        style: ElevatedButton.styleFrom(
          backgroundColor: AppColors.navy,
          foregroundColor: Colors.white,
          padding: const EdgeInsets.symmetric(horizontal: 28, vertical: 14),
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(50),
          ),
          textStyle: const TextStyle(
            fontFamily: 'Poppins',
            fontWeight: FontWeight.w600,
            fontSize: 16,
          ),
        ),
      ),

      // ── Outlined buttons ──
      outlinedButtonTheme: OutlinedButtonThemeData(
        style: OutlinedButton.styleFrom(
          foregroundColor: AppColors.navy,
          side: const BorderSide(color: AppColors.navy),
          padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 12),
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(50),
          ),
          textStyle: const TextStyle(
            fontFamily: 'Poppins',
            fontWeight: FontWeight.w500,
            fontSize: 14,
          ),
        ),
      ),

      // ── Text buttons ──
      textButtonTheme: TextButtonThemeData(
        style: TextButton.styleFrom(
          foregroundColor: AppColors.navy,
          textStyle: const TextStyle(
            fontFamily: 'Poppins',
            fontWeight: FontWeight.w500,
          ),
        ),
      ),

      // ── Input fields ──
      inputDecorationTheme: InputDecorationTheme(
        filled: true,
        fillColor: Colors.white,
        contentPadding:
            const EdgeInsets.symmetric(horizontal: 20, vertical: 16),
        border: OutlineInputBorder(
          borderRadius: BorderRadius.circular(14),
          borderSide: BorderSide(color: Colors.grey.shade300),
        ),
        enabledBorder: OutlineInputBorder(
          borderRadius: BorderRadius.circular(14),
          borderSide: BorderSide(color: Colors.grey.shade300),
        ),
        focusedBorder: OutlineInputBorder(
          borderRadius: BorderRadius.circular(14),
          borderSide:
              const BorderSide(color: AppColors.navy, width: 2),
        ),
        labelStyle: const TextStyle(
          fontFamily: 'Poppins',
          color: AppColors.textSecondary,
        ),
        hintStyle: const TextStyle(
          fontFamily: 'Poppins',
          color: AppColors.textHint,
        ),
      ),

      // ── Bottom Navigation ──
      navigationBarTheme: NavigationBarThemeData(
        backgroundColor: Colors.white,
        indicatorColor: AppColors.orange.withValues(alpha: 0.15),
        labelTextStyle: WidgetStateProperty.resolveWith((states) {
          if (states.contains(WidgetState.selected)) {
            return const TextStyle(
              fontFamily: 'Poppins',
              fontWeight: FontWeight.w600,
              fontSize: 12,
              color: AppColors.orange,
            );
          }
          return const TextStyle(
            fontFamily: 'Poppins',
            fontWeight: FontWeight.w400,
            fontSize: 12,
            color: AppColors.textSecondary,
          );
        }),
        iconTheme: WidgetStateProperty.resolveWith((states) {
          if (states.contains(WidgetState.selected)) {
            return const IconThemeData(color: AppColors.orange);
          }
          return const IconThemeData(color: AppColors.textSecondary);
        }),
      ),

      // ── FAB ──
      floatingActionButtonTheme: const FloatingActionButtonThemeData(
        backgroundColor: AppColors.orange,
        foregroundColor: Colors.white,
        shape: StadiumBorder(),
      ),

      // ── Dialogs ──
      dialogTheme: DialogThemeData(
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(20),
        ),
        titleTextStyle: const TextStyle(
          fontFamily: 'Poppins',
          fontWeight: FontWeight.w600,
          fontSize: 20,
          color: AppColors.textPrimary,
        ),
      ),

      // ── Snackbar ──
      snackBarTheme: SnackBarThemeData(
        behavior: SnackBarBehavior.floating,
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(12),
        ),
        contentTextStyle: const TextStyle(
          fontFamily: 'Poppins',
          fontWeight: FontWeight.w400,
        ),
      ),

      // ── Divider ──
      dividerTheme: DividerThemeData(
        color: Colors.grey.shade200,
        thickness: 1,
      ),
    );
  }

  // ─────────────────────────── DARK ────────────────────────────────────
  static ThemeData get dark {
    final colorScheme = ColorScheme.fromSeed(
      seedColor: AppColors.orange,
      brightness: Brightness.dark,
      primary: AppColors.orange,
      secondary: AppColors.navyLight,
      surface: AppColors.cardDark,
      error: AppColors.error,
    );

    return ThemeData(
      useMaterial3: true,
      colorScheme: colorScheme,
      fontFamily: 'Poppins',
      scaffoldBackgroundColor: AppColors.backgroundDark,

      appBarTheme: const AppBarTheme(
        backgroundColor: Colors.transparent,
        foregroundColor: Colors.white,
        elevation: 0,
        centerTitle: true,
        titleTextStyle: TextStyle(
          fontFamily: 'Poppins',
          fontWeight: FontWeight.w600,
          fontSize: 20,
          color: Colors.white,
        ),
      ),

      cardTheme: CardThemeData(
        color: AppColors.cardDark,
        elevation: 4,
        shadowColor: Colors.black26,
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(16),
        ),
        margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 6),
      ),

      elevatedButtonTheme: ElevatedButtonThemeData(
        style: ElevatedButton.styleFrom(
          backgroundColor: AppColors.orange,
          foregroundColor: Colors.white,
          padding: const EdgeInsets.symmetric(horizontal: 28, vertical: 14),
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(50),
          ),
          textStyle: const TextStyle(
            fontFamily: 'Poppins',
            fontWeight: FontWeight.w600,
            fontSize: 16,
          ),
        ),
      ),

      outlinedButtonTheme: OutlinedButtonThemeData(
        style: OutlinedButton.styleFrom(
          foregroundColor: AppColors.orange,
          side: const BorderSide(color: AppColors.orange),
          padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 12),
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(50),
          ),
        ),
      ),

      textButtonTheme: TextButtonThemeData(
        style: TextButton.styleFrom(
          foregroundColor: AppColors.orange,
        ),
      ),

      inputDecorationTheme: InputDecorationTheme(
        filled: true,
        fillColor: AppColors.surfaceDark,
        contentPadding:
            const EdgeInsets.symmetric(horizontal: 20, vertical: 16),
        border: OutlineInputBorder(
          borderRadius: BorderRadius.circular(14),
          borderSide: BorderSide.none,
        ),
        enabledBorder: OutlineInputBorder(
          borderRadius: BorderRadius.circular(14),
          borderSide: BorderSide.none,
        ),
        focusedBorder: OutlineInputBorder(
          borderRadius: BorderRadius.circular(14),
          borderSide:
              const BorderSide(color: AppColors.orange, width: 2),
        ),
        labelStyle: const TextStyle(
          fontFamily: 'Poppins',
          color: AppColors.textHint,
        ),
      ),

      navigationBarTheme: NavigationBarThemeData(
        backgroundColor: AppColors.cardDark,
        indicatorColor: AppColors.orange.withValues(alpha: 0.2),
        labelTextStyle: WidgetStateProperty.resolveWith((states) {
          if (states.contains(WidgetState.selected)) {
            return const TextStyle(
              fontFamily: 'Poppins',
              fontWeight: FontWeight.w600,
              fontSize: 12,
              color: AppColors.orange,
            );
          }
          return const TextStyle(
            fontFamily: 'Poppins',
            fontWeight: FontWeight.w400,
            fontSize: 12,
            color: AppColors.textHint,
          );
        }),
        iconTheme: WidgetStateProperty.resolveWith((states) {
          if (states.contains(WidgetState.selected)) {
            return const IconThemeData(color: AppColors.orange);
          }
          return const IconThemeData(color: AppColors.textHint);
        }),
      ),

      floatingActionButtonTheme: const FloatingActionButtonThemeData(
        backgroundColor: AppColors.orange,
        foregroundColor: Colors.white,
        shape: StadiumBorder(),
      ),

      dialogTheme: DialogThemeData(
        backgroundColor: AppColors.cardDark,
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(20),
        ),
        titleTextStyle: const TextStyle(
          fontFamily: 'Poppins',
          fontWeight: FontWeight.w600,
          fontSize: 20,
          color: Colors.white,
        ),
      ),

      snackBarTheme: SnackBarThemeData(
        behavior: SnackBarBehavior.floating,
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(12),
        ),
      ),

      dividerTheme: const DividerThemeData(
        color: AppColors.surfaceDark,
        thickness: 1,
      ),
    );
  }
}