import 'package:flutter/material.dart';

import 'generated/theme_colors.dart';

class AppThemeColors {
  const AppThemeColors({
    required this.headingColor,
    required this.accentColor,
    required this.scaffoldGradientStart,
    required this.scaffoldGradientEnd,
    required this.shellSurface,
    required this.shellBorder,
    required this.mutedText,
    required this.textOnDark,
    required this.textOnDarkSecondary,
    required this.controlsGradientStart,
    required this.controlsGradientEnd,
    required this.controlsShadow,
    required this.bodyText,
    required this.cardSurface,
    required this.cardBorder,
    required this.successColor,
    required this.dangerColor,
  });

  /// Website: `primary` → headings (h1–h6)
  final Color headingColor;
  /// Website: `accent` → links & accent highlights
  final Color accentColor;
  /// Page background gradient start — website: `background` (cream)
  final Color scaffoldGradientStart;
  /// Page background gradient end — website: `light`
  final Color scaffoldGradientEnd;
  /// Top header card surface
  final Color shellSurface;
  /// Top header card border
  final Color shellBorder;
  /// Website: `medium` → muted / secondary text
  final Color mutedText;
  /// Website: `white` → text on dark surfaces
  final Color textOnDark;
  /// Website: `light` → secondary text on dark surfaces
  final Color textOnDarkSecondary;
  /// Controls bar / card surface gradient start — website: `primary_dark`
  final Color controlsGradientStart;
  /// Controls bar / card surface gradient end — website: `primary_dark`
  final Color controlsGradientEnd;
  /// Shadow color for elevated surfaces
  final Color controlsShadow;
  /// Website: `text` → body text
  final Color bodyText;
  /// Inner card background overlay — derived from `primary_dark` / `primary_light`
  final Color cardSurface;
  /// Inner card border — derived from `primary_dark` / `primary_light`
  final Color cardBorder;
  /// Website: `success` → live indicator, success states
  final Color successColor;
  /// Website: `danger` → error states
  final Color dangerColor;
}

class AppThemeBusinessObject {
  static const AppThemeColors lightColors = GeneratedThemeColors.lightColors;
  static const AppThemeColors darkColors = GeneratedThemeColors.darkColors;

  static bool isDarkMode(BuildContext context) {
    return MediaQuery.platformBrightnessOf(context) == Brightness.dark;
  }

  static AppThemeColors colorsFor(BuildContext context) {
    return isDarkMode(context) ? darkColors : lightColors;
  }

  static ThemeData lightTheme() {
    final ColorScheme scheme = ColorScheme.light(
      brightness: Brightness.light,
      primary: lightColors.headingColor,
      onPrimary: lightColors.textOnDark,
      secondary: lightColors.accentColor,
      onSecondary: lightColors.textOnDark,
      surface: lightColors.shellSurface,
      onSurface: lightColors.bodyText,
      error: lightColors.dangerColor,
      onError: lightColors.textOnDark,
    );

    return ThemeData(
      useMaterial3: true,
      colorScheme: scheme,
      scaffoldBackgroundColor: scheme.surface,
      elevatedButtonTheme: ElevatedButtonThemeData(
        style: ElevatedButton.styleFrom(
          backgroundColor: scheme.primary,
          foregroundColor: scheme.onPrimary,
          padding: const EdgeInsets.symmetric(horizontal: 18, vertical: 14),
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(16),
          ),
        ),
      ),
    );
  }

  static ThemeData darkTheme() {
    final ColorScheme scheme = ColorScheme.dark(
      brightness: Brightness.dark,
      primary: darkColors.headingColor,
      onPrimary: darkColors.textOnDark,
      secondary: darkColors.accentColor,
      onSecondary: darkColors.textOnDark,
      surface: darkColors.shellSurface,
      onSurface: darkColors.bodyText,
      error: darkColors.dangerColor,
      onError: darkColors.textOnDark,
    );

    return ThemeData(
      useMaterial3: true,
      colorScheme: scheme,
      scaffoldBackgroundColor: scheme.surface,
      elevatedButtonTheme: ElevatedButtonThemeData(
        style: ElevatedButton.styleFrom(
          backgroundColor: scheme.primary,
          foregroundColor: scheme.onPrimary,
          padding: const EdgeInsets.symmetric(horizontal: 18, vertical: 14),
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(16),
          ),
        ),
      ),
    );
  }
}