import 'package:flutter/material.dart';

/// PAILot brand colors - teal/blue accent on dark backgrounds.
class AppColors {
  // Brand
  static const Color accent = Color(0xFF4A9EFF);
  static const Color accentDim = Color(0xFF2D6BB5);

  // Dark mode
  static const Color darkBg = Color(0xFF0A0A0F);
  static const Color darkSurface = Color(0xFF1C1C2E);
  static const Color darkCard = Color(0xFF1E1E2E);
  static const Color darkInputBg = Color(0xFF2A2A3E);

  // Bubbles
  static const Color userBubble = Color(0xFF4A9EFF);
  static const Color assistantBubble = Color(0xFF2A2A3E);
  static const Color systemBubble = Color(0xFF1A1A2A);

  // Light mode
  static const Color lightBg = Color(0xFFF5F5FA);
  static const Color lightSurface = Color(0xFFFFFFFF);
  static const Color lightCard = Color(0xFFF0F0F8);
  static const Color lightInputBg = Color(0xFFE8E8F0);
  static const Color lightUserBubble = Color(0xFF4A9EFF);
  static const Color lightAssistantBubble = Color(0xFFE8E8F0);

  // Text
  static const Color darkTextPrimary = Color(0xFFE0E0E0);
  static const Color darkTextSecondary = Color(0xFFB0B0B0);
  static const Color darkTextTertiary = Color(0xFF757575);
  static const Color lightTextPrimary = Color(0xFF212121);
  static const Color lightTextSecondary = Color(0xFF616161);

  // Status
  static const Color connected = Color(0xFF22C55E);
  static const Color connecting = Color(0xFFEAB308);
  static const Color disconnected = Color(0xFFEF4444);
  static const Color compacting = Color(0xFF3B82F6);

  // Recording
  static const Color recording = Color(0xFFFF6B35);
  static const Color recordingGlow = Color(0x40FF6B35);

  // Misc
  static const Color error = Color(0xFFEF4444);
  static const Color success = Color(0xFF22C55E);
  static const Color unreadBadge = Color(0xFFFF4444);
}

class AppTheme {
  static ThemeData get darkTheme {
    return ThemeData(
      useMaterial3: true,
      brightness: Brightness.dark,
      colorScheme: ColorScheme.fromSeed(
        seedColor: AppColors.accent,
        brightness: Brightness.dark,
        primary: AppColors.accent,
        surface: AppColors.darkSurface,
      ),
      scaffoldBackgroundColor: AppColors.darkBg,
      appBarTheme: const AppBarTheme(
        backgroundColor: AppColors.darkSurface,
        foregroundColor: Colors.white,
        elevation: 0,
        centerTitle: true,
      ),
      cardTheme: CardThemeData(
        color: AppColors.darkCard,
        elevation: 0,
        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
        margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
      ),
      drawerTheme: const DrawerThemeData(
        backgroundColor: AppColors.darkSurface,
      ),
      elevatedButtonTheme: ElevatedButtonThemeData(
        style: ElevatedButton.styleFrom(
          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
          padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 14),
        ),
      ),
      inputDecorationTheme: InputDecorationTheme(
        filled: true,
        fillColor: AppColors.darkInputBg,
        border: OutlineInputBorder(
          borderRadius: BorderRadius.circular(12),
          borderSide: BorderSide.none,
        ),
        contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
      ),
      textTheme: const TextTheme(
        headlineLarge: TextStyle(
            fontSize: 28,
            fontWeight: FontWeight.bold,
            color: AppColors.darkTextPrimary),
        headlineMedium: TextStyle(
            fontSize: 22,
            fontWeight: FontWeight.bold,
            color: AppColors.darkTextPrimary),
        titleLarge: TextStyle(
            fontSize: 18,
            fontWeight: FontWeight.w600,
            color: AppColors.darkTextPrimary),
        bodyLarge:
            TextStyle(fontSize: 16, color: AppColors.darkTextPrimary),
        bodyMedium:
            TextStyle(fontSize: 14, color: AppColors.darkTextSecondary),
      ),
    );
  }

  static ThemeData get lightTheme {
    return ThemeData(
      useMaterial3: true,
      brightness: Brightness.light,
      colorScheme: ColorScheme.fromSeed(
        seedColor: AppColors.accent,
        brightness: Brightness.light,
        primary: AppColors.accent,
        surface: AppColors.lightSurface,
      ),
      scaffoldBackgroundColor: AppColors.lightBg,
      appBarTheme: const AppBarTheme(
        backgroundColor: AppColors.lightSurface,
        foregroundColor: AppColors.lightTextPrimary,
        elevation: 0,
        centerTitle: true,
      ),
      cardTheme: CardThemeData(
        color: AppColors.lightCard,
        elevation: 0,
        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
        margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
      ),
      drawerTheme: const DrawerThemeData(
        backgroundColor: AppColors.lightSurface,
      ),
      elevatedButtonTheme: ElevatedButtonThemeData(
        style: ElevatedButton.styleFrom(
          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
          padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 14),
        ),
      ),
      inputDecorationTheme: InputDecorationTheme(
        filled: true,
        fillColor: AppColors.lightInputBg,
        border: OutlineInputBorder(
          borderRadius: BorderRadius.circular(12),
          borderSide: BorderSide.none,
        ),
        contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
      ),
      textTheme: const TextTheme(
        headlineLarge: TextStyle(
            fontSize: 28,
            fontWeight: FontWeight.bold,
            color: AppColors.lightTextPrimary),
        headlineMedium: TextStyle(
            fontSize: 22,
            fontWeight: FontWeight.bold,
            color: AppColors.lightTextPrimary),
        titleLarge: TextStyle(
            fontSize: 18,
            fontWeight: FontWeight.w600,
            color: AppColors.lightTextPrimary),
        bodyLarge:
            TextStyle(fontSize: 16, color: AppColors.lightTextPrimary),
        bodyMedium:
            TextStyle(fontSize: 14, color: AppColors.lightTextSecondary),
      ),
    );
  }
}