import 'package:flutter/material.dart';

import '../theme/yanting_text.dart';
import '../theme/yanting_tokens.dart';

class AppButton extends StatelessWidget {
  const AppButton({
    required this.label,
    required this.onPressed,
    this.icon,
    this.kind = AppButtonKind.primary,
    this.expand = false,
    super.key,
  });

  final String label;
  final VoidCallback? onPressed;
  final IconData? icon;
  final AppButtonKind kind;
  final bool expand;

  @override
  Widget build(BuildContext context) {
    final colors = switch (kind) {
      AppButtonKind.primary => (
        YantingColors.primary,
        YantingColors.primaryForeground,
        Colors.transparent,
      ),
      AppButtonKind.dark => (
        YantingColors.foreground,
        YantingColors.background,
        Colors.transparent,
      ),
      AppButtonKind.accent => (
        YantingColors.brandSoft,
        YantingColors.primaryForeground,
        Colors.transparent,
      ),
      AppButtonKind.ghost => (
        YantingColors.background,
        YantingColors.foreground,
        YantingColors.border,
      ),
    };
    final child = FilledButton.icon(
      onPressed: onPressed,
      icon: icon == null ? const SizedBox.shrink() : Icon(icon, size: 18),
      label: Text(label),
      style: FilledButton.styleFrom(
        backgroundColor: colors.$1,
        foregroundColor: colors.$2,
        disabledBackgroundColor: YantingColors.border,
        disabledForegroundColor: YantingColors.mutedForeground,
        minimumSize: Size(expand ? double.infinity : 0, 44),
        textStyle: YantingText.body.copyWith(fontWeight: FontWeight.w600),
        side: colors.$3 == Colors.transparent
            ? BorderSide.none
            : BorderSide(color: colors.$3),
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(YantingRadius.md),
        ),
      ),
    );
    return expand ? SizedBox(width: double.infinity, child: child) : child;
  }
}

enum AppButtonKind { primary, dark, accent, ghost }