import 'package:flutter/material.dart';

/// Scalar360 palette (mirrors the web app tokens).
class AppColors {
  static const emerald = Color(0xFF00BE73);
  static const navy = Color(0xFF1F2937);
  static const muted = Color(0xFF8A94A6);
  static const border = Color(0xFFE4E9F0);
  static const surface = Color(0xFFF7F9FC);
  static const card = Colors.white;
  static const danger = Color(0xFFEF4444);
  static const gold = Color(0xFFC9A227);
  static const navyAccent = Color(0xFF3B82F6);
}

/// Status pill colours.
Color statusColor(String? s) {
  switch (s) {
    case 'PRESENT':
      return AppColors.emerald;
    case 'ABSENT':
      return AppColors.danger;
    case 'HALF_DAY':
      return AppColors.gold;
    case 'LEAVE':
      return AppColors.navyAccent;
    default:
      return AppColors.muted;
  }
}

ThemeData buildTheme() {
  final base = ThemeData(
    useMaterial3: true,
    colorScheme: ColorScheme.fromSeed(
      seedColor: AppColors.emerald,
      primary: AppColors.emerald,
      brightness: Brightness.light,
    ),
    scaffoldBackgroundColor: AppColors.surface,
    fontFamily: 'Roboto',
  );
  return base.copyWith(
    appBarTheme: const AppBarTheme(
      backgroundColor: AppColors.surface,
      foregroundColor: AppColors.navy,
      elevation: 0,
      centerTitle: false,
    ),
    cardTheme: CardThemeData(
      color: AppColors.card,
      elevation: 0,
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.circular(18),
        side: const BorderSide(color: AppColors.border),
      ),
      margin: EdgeInsets.zero,
    ),
    inputDecorationTheme: InputDecorationTheme(
      filled: true,
      fillColor: AppColors.card,
      contentPadding: const EdgeInsets.symmetric(horizontal: 14, vertical: 14),
      border: OutlineInputBorder(
        borderRadius: BorderRadius.circular(14),
        borderSide: const BorderSide(color: AppColors.border),
      ),
      enabledBorder: OutlineInputBorder(
        borderRadius: BorderRadius.circular(14),
        borderSide: const BorderSide(color: AppColors.border),
      ),
      focusedBorder: OutlineInputBorder(
        borderRadius: BorderRadius.circular(14),
        borderSide: const BorderSide(color: AppColors.emerald, width: 1.5),
      ),
    ),
    filledButtonTheme: FilledButtonThemeData(
      style: FilledButton.styleFrom(
        backgroundColor: AppColors.emerald,
        foregroundColor: Colors.white,
        minimumSize: const Size.fromHeight(50),
        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(14)),
        textStyle: const TextStyle(fontSize: 16, fontWeight: FontWeight.w600),
      ),
    ),
  );
}