import 'package:flutter/material.dart';
import 'package:google_fonts/google_fonts.dart';
import '../../core/theme/app_colors.dart';
import '../../core/theme/app_theme.dart';

/// XtremFlow Mobile Theme (Touch-optimized)
///
/// Adapted Apple TV Modern design for mobile screens:
/// - Larger touch targets (48px minimum)
/// - Vertical-first layouts
/// - Bottom navigation
/// - Mobile-friendly spacing
class MobileTheme {
  MobileTheme._();

  // ============ SPACING ============
  static const double spacing4 = 4.0;
  static const double spacing8 = 8.0;
  static const double spacing12 = 12.0;
  static const double spacing16 = 16.0;
  static const double spacing20 = 20.0;
  static const double spacing24 = 24.0;

  // ============ RADIUS ============
  static const double radiusSm = 8.0;
  static const double radiusMd = 12.0;
  static const double radiusLg = 16.0;

  // ============ DARK THEME (Mobile Main) ============
  static ThemeData get darkTheme {
    final baseTheme = ThemeData.dark(useMaterial3: true);

    return baseTheme.copyWith(
      colorScheme: AppColors.darkColorScheme,
      scaffoldBackgroundColor: AppColors.background,
      canvasColor: AppColors.background,

      // ============ TYPOGRAPHY (Mobile-scaled) ============
      textTheme: TextTheme(
        // Display - Large titles
        displayLarge: GoogleFonts.outfit(
          fontSize: 32,
          fontWeight: FontWeight.w800,
          letterSpacing: -1.0,
          height: 1.2,
          color: AppColors.textPrimary,
        ),

        // Display Medium
        displayMedium: GoogleFonts.outfit(
          fontSize: 28,
          fontWeight: FontWeight.w700,
          letterSpacing: -0.5,
          height: 1.25,
          color: AppColors.textPrimary,
        ),

        // Display Small
        displaySmall: GoogleFonts.outfit(
          fontSize: 24,
          fontWeight: FontWeight.w700,
          letterSpacing: -0.3,
          height: 1.3,
          color: AppColors.textPrimary,
        ),

        // Headline Medium
        headlineMedium: GoogleFonts.outfit(
          fontSize: 20,
          fontWeight: FontWeight.w700,
          letterSpacing: -0.2,
          height: 1.3,
          color: AppColors.textPrimary,
        ),

        // Headline Small
        headlineSmall: GoogleFonts.outfit(
          fontSize: 18,
          fontWeight: FontWeight.w600,
          letterSpacing: -0.1,
          height: 1.4,
          color: AppColors.textPrimary,
        ),

        // Title Large
        titleLarge: GoogleFonts.inter(
          fontSize: 16,
          fontWeight: FontWeight.w600,
          letterSpacing: 0,
          height: 1.4,
          color: AppColors.textPrimary,
        ),

        // Title Medium
        titleMedium: GoogleFonts.inter(
          fontSize: 14,
          fontWeight: FontWeight.w600,
          letterSpacing: 0.1,
          height: 1.4,
          color: AppColors.textPrimary,
        ),

        // Title Small
        titleSmall: GoogleFonts.inter(
          fontSize: 12,
          fontWeight: FontWeight.w600,
          letterSpacing: 0.1,
          height: 1.4,
          color: AppColors.textSecondary,
        ),

        // Body Large
        bodyLarge: GoogleFonts.inter(
          fontSize: 14,
          fontWeight: FontWeight.w400,
          letterSpacing: 0.2,
          height: 1.5,
          color: AppColors.textSecondary,
        ),

        // Body Medium
        bodyMedium: GoogleFonts.inter(
          fontSize: 12,
          fontWeight: FontWeight.w400,
          letterSpacing: 0.2,
          height: 1.5,
          color: AppColors.textSecondary,
        ),

        // Body Small
        bodySmall: GoogleFonts.inter(
          fontSize: 11,
          fontWeight: FontWeight.w400,
          letterSpacing: 0.3,
          height: 1.5,
          color: AppColors.textTertiary,
        ),

        // Label Large
        labelLarge: GoogleFonts.inter(
          fontSize: 12,
          fontWeight: FontWeight.w700,
          letterSpacing: 0.2,
          height: 1.4,
          color: AppColors.textPrimary,
        ),

        // Label Medium
        labelMedium: GoogleFonts.inter(
          fontSize: 11,
          fontWeight: FontWeight.w600,
          letterSpacing: 0.3,
          height: 1.4,
          color: AppColors.textPrimary,
        ),

        // Label Small
        labelSmall: GoogleFonts.inter(
          fontSize: 10,
          fontWeight: FontWeight.w600,
          letterSpacing: 0.5,
          height: 1.4,
          color: AppColors.textSecondary,
        ),
      ),

      // ============ APP BAR ============
      appBarTheme: AppBarTheme(
        backgroundColor: Colors.transparent,
        foregroundColor: AppColors.textPrimary,
        elevation: 0,
        scrolledUnderElevation: 0,
        centerTitle: true,
        titleTextStyle: GoogleFonts.outfit(
          fontSize: 20,
          fontWeight: FontWeight.w700,
          color: AppColors.textPrimary,
          letterSpacing: -0.3,
        ),
      ),

      // ============ INPUTS ============
      inputDecorationTheme: InputDecorationTheme(
        filled: true,
        fillColor: AppColors.surface,
        contentPadding: const EdgeInsets.symmetric(
          horizontal: spacing16,
          vertical: spacing12,
        ),
        border: OutlineInputBorder(
          borderRadius: BorderRadius.circular(radiusMd),
          borderSide: const BorderSide(color: AppColors.border),
        ),
        enabledBorder: OutlineInputBorder(
          borderRadius: BorderRadius.circular(radiusMd),
          borderSide: const BorderSide(color: AppColors.border, width: 1.5),
        ),
        focusedBorder: OutlineInputBorder(
          borderRadius: BorderRadius.circular(radiusMd),
          borderSide: const BorderSide(color: AppColors.primary, width: 2),
        ),
        hintStyle: GoogleFonts.inter(
          color: AppColors.textTertiary,
          fontSize: 14,
        ),
      ),

      // ============ BUTTONS (Mobile-sized) ============
      filledButtonTheme: FilledButtonThemeData(
        style: FilledButton.styleFrom(
          backgroundColor: AppColors.primary,
          foregroundColor: Colors.black,
          elevation: 0,
          padding: const EdgeInsets.symmetric(
            horizontal: spacing20,
            vertical: spacing12,
          ),
          minimumSize: const Size(double.infinity, 48),
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(radiusMd),
          ),
          textStyle: GoogleFonts.inter(
            fontWeight: FontWeight.w700,
            fontSize: 14,
          ),
        ),
      ),

      outlinedButtonTheme: OutlinedButtonThemeData(
        style: OutlinedButton.styleFrom(
          foregroundColor: AppColors.primary,
          side: const BorderSide(color: AppColors.primary, width: 1.5),
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(radiusMd),
          ),
          padding: const EdgeInsets.symmetric(
            horizontal: spacing20,
            vertical: spacing12,
          ),
          minimumSize: const Size(double.infinity, 48),
        ),
      ),

      // ============ BOTTOM NAVIGATION ============
      bottomNavigationBarTheme: BottomNavigationBarThemeData(
        backgroundColor: AppColors.surface,
        selectedItemColor: AppColors.primary,
        unselectedItemColor: AppColors.textSecondary,
        selectedLabelStyle: GoogleFonts.inter(
          fontSize: 11,
          fontWeight: FontWeight.w600,
        ),
        unselectedLabelStyle: GoogleFonts.inter(
          fontSize: 11,
          fontWeight: FontWeight.w500,
        ),
        type: BottomNavigationBarType.fixed,
        elevation: AppTheme.elevationMd,
      ),

      // ============ CARDS ============
      cardTheme: CardThemeData(
        color: AppColors.surface,
        elevation: 0,
        margin: EdgeInsets.zero,
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(radiusLg),
          side: const BorderSide(color: AppColors.border),
        ),
      ),

      // ============ DIALOGS ============
      dialogTheme: DialogThemeData(
        backgroundColor: AppColors.surface,
        elevation: AppTheme.elevationLg,
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(radiusLg),
        ),
      ),

      // ============ CHIPS ============
      chipTheme: ChipThemeData(
        backgroundColor: AppColors.surfaceVariant,
        selectedColor: AppColors.primary,
        labelStyle: GoogleFonts.inter(
          fontSize: 12,
          fontWeight: FontWeight.w600,
          color: AppColors.textPrimary,
        ),
        padding: const EdgeInsets.symmetric(
          horizontal: spacing12,
          vertical: spacing8,
        ),
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(radiusMd),
          side: const BorderSide(color: AppColors.border),
        ),
      ),
    );
  }

  // Light theme (fallback)
  static ThemeData get lightTheme {
    final baseTheme = ThemeData.light(useMaterial3: true);

    return baseTheme.copyWith(
      colorScheme: AppColors.darkColorScheme,
      textTheme: GoogleFonts.interTextTheme(baseTheme.textTheme),
    );
  }
}