// lib/core/theme/app_theme.dart
// Persona C importa este archivo también.
// Un solo lugar para colores, tipografía y estilos.

import 'package:flutter/material.dart';

class AppTheme {
  AppTheme._();

  // ── Paleta de categorías ─────────────────────────────────────────
  static const organicosColor    = Color(0xFF4CAF50);
  static const reciclabesColor   = Color(0xFF2196F3);
  static const sanitariosColor   = Color(0xFFFF5722);
  static const especialesColor   = Color(0xFFFF9800);

  // ── Paleta general ───────────────────────────────────────────────
  static const primaryColor      = Color(0xFF1B5E20);   // verde oscuro
  static const secondaryColor    = Color(0xFF2E7D32);
  static const backgroundColor   = Color(0xFFF5F5F5);
  static const surfaceColor      = Color(0xFFFFFFFF);
  static const errorColor        = Color(0xFFD32F2F);

  static ThemeData get lightTheme => ThemeData(
        useMaterial3: true,
        colorScheme: ColorScheme.fromSeed(
          seedColor: primaryColor,
          surface: surfaceColor,
          error: errorColor,
        ),
        scaffoldBackgroundColor: backgroundColor,
        appBarTheme: const AppBarTheme(
          backgroundColor: primaryColor,
          foregroundColor: Colors.white,
          elevation: 0,
          centerTitle: true,
          titleTextStyle: TextStyle(
            fontSize: 18,
            fontWeight: FontWeight.w600,
            color: Colors.white,
          ),
        ),
        cardTheme: CardTheme(
          color: surfaceColor,
          elevation: 2,
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(12),
          ),
        ),
        chipTheme: ChipThemeData(
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(20),
          ),
        ),
        inputDecorationTheme: InputDecorationTheme(
          filled: true,
          fillColor: surfaceColor,
          border: OutlineInputBorder(
            borderRadius: BorderRadius.circular(12),
            borderSide: BorderSide.none,
          ),
          contentPadding: const EdgeInsets.symmetric(
            horizontal: 16,
            vertical: 12,
          ),
        ),
      );

  // ── Colores por id de categoría ──────────────────────────────────
  static Color colorDeCategoriaId(String id) {
    return switch (id) {
      'organicos'   => organicosColor,
      'reciclables' => reciclabesColor,
      'sanitarios'  => sanitariosColor,
      'especiales'  => especialesColor,
      _             => primaryColor,
    };
  }
}