proxybuy-flutter/lib/widgets/app_snackbar.dart

import 'package:flutter/material.dart';

enum SnackBarType {
  success,
  error,
  warning,
  info,
}

class AppSnackBar {
  static void show({
    required BuildContext context,
    required String message,
    SnackBarType type = SnackBarType.info,
    Duration duration = const Duration(seconds: 3),
    String? actionLabel,
    VoidCallback? onActionPressed,
  }) {
    // Remove any existing snackbars
    ScaffoldMessenger.of(context).hideCurrentSnackBar();

    final snackBar = SnackBar(
      content: _SnackBarContent(
        message: message,
        type: type,
      ),
      backgroundColor: Colors.transparent,
      elevation: 0,
      duration: duration,
      behavior: SnackBarBehavior.floating,
      margin: const EdgeInsets.all(16),
      padding: EdgeInsets.zero,
      action: actionLabel != null
          ? SnackBarAction(
              label: actionLabel,
              textColor: _getActionColor(type),
              onPressed: onActionPressed ?? () {},
            )
          : null,
    );

    ScaffoldMessenger.of(context).showSnackBar(snackBar);
  }

  static void showSuccess({
    required BuildContext context,
    required String message,
    Duration duration = const Duration(seconds: 3),
    String? actionLabel,
    VoidCallback? onActionPressed,
  }) {
    show(
      context: context,
      message: message,
      type: SnackBarType.success,
      duration: duration,
      actionLabel: actionLabel,
      onActionPressed: onActionPressed,
    );
  }

  static void showError({
    required BuildContext context,
    required String message,
    Duration duration = const Duration(seconds: 4),
    String? actionLabel,
    VoidCallback? onActionPressed,
  }) {
    show(
      context: context,
      message: message,
      type: SnackBarType.error,
      duration: duration,
      actionLabel: actionLabel,
      onActionPressed: onActionPressed,
    );
  }

  static void showWarning({
    required BuildContext context,
    required String message,
    Duration duration = const Duration(seconds: 3),
    String? actionLabel,
    VoidCallback? onActionPressed,
  }) {
    show(
      context: context,
      message: message,
      type: SnackBarType.warning,
      duration: duration,
      actionLabel: actionLabel,
      onActionPressed: onActionPressed,
    );
  }

  static void showInfo({
    required BuildContext context,
    required String message,
    Duration duration = const Duration(seconds: 3),
    String? actionLabel,
    VoidCallback? onActionPressed,
  }) {
    show(
      context: context,
      message: message,
      type: SnackBarType.info,
      duration: duration,
      actionLabel: actionLabel,
      onActionPressed: onActionPressed,
    );
  }

  static Color _getActionColor(SnackBarType type) {
    switch (type) {
      case SnackBarType.success:
        return Colors.green.shade100;
      case SnackBarType.error:
        return Colors.red.shade100;
      case SnackBarType.warning:
        return Colors.orange.shade100;
      case SnackBarType.info:
        return Colors.blue.shade100;
    }
  }
}

class _SnackBarContent extends StatelessWidget {
  final String message;
  final SnackBarType type;

  const _SnackBarContent({
    required this.message,
    required this.type,
  });

  @override
  Widget build(BuildContext context) {
    return Container(
      padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 14),
      decoration: BoxDecoration(
        color: _getBackgroundColor(),
        borderRadius: BorderRadius.circular(12),
        boxShadow: [
          BoxShadow(
            color: Colors.black.withOpacity(0.1),
            blurRadius: 8,
            offset: const Offset(0, 2),
          ),
        ],
        border: Border.all(
          color: _getBorderColor(),
          width: 1,
        ),
      ),
      child: Row(
        children: [
          Container(
            padding: const EdgeInsets.all(8),
            decoration: BoxDecoration(
              color: _getIconBackgroundColor(),
              shape: BoxShape.circle,
            ),
            child: Icon(
              _getIcon(),
              color: _getIconColor(),
              size: 20,
            ),
          ),
          const SizedBox(width: 12),
          Expanded(
            child: Text(
              message,
              style: TextStyle(
                color: _getTextColor(),
                fontSize: 14,
                fontWeight: FontWeight.w500,
              ),
            ),
          ),
        ],
      ),
    );
  }

  Color _getBackgroundColor() {
    switch (type) {
      case SnackBarType.success:
        return Colors.green.shade50;
      case SnackBarType.error:
        return Colors.red.shade50;
      case SnackBarType.warning:
        return Colors.orange.shade50;
      case SnackBarType.info:
        return Colors.blue.shade50;
    }
  }

  Color _getBorderColor() {
    switch (type) {
      case SnackBarType.success:
        return Colors.green.shade200;
      case SnackBarType.error:
        return Colors.red.shade200;
      case SnackBarType.warning:
        return Colors.orange.shade200;
      case SnackBarType.info:
        return Colors.blue.shade200;
    }
  }

  Color _getIconBackgroundColor() {
    switch (type) {
      case SnackBarType.success:
        return Colors.green.shade100;
      case SnackBarType.error:
        return Colors.red.shade100;
      case SnackBarType.warning:
        return Colors.orange.shade100;
      case SnackBarType.info:
        return Colors.blue.shade100;
    }
  }

  Color _getIconColor() {
    switch (type) {
      case SnackBarType.success:
        return Colors.green.shade700;
      case SnackBarType.error:
        return Colors.red.shade700;
      case SnackBarType.warning:
        return Colors.orange.shade700;
      case SnackBarType.info:
        return Colors.blue.shade700;
    }
  }

  Color _getTextColor() {
    switch (type) {
      case SnackBarType.success:
        return Colors.green.shade800;
      case SnackBarType.error:
        return Colors.red.shade800;
      case SnackBarType.warning:
        return Colors.orange.shade800;
      case SnackBarType.info:
        return Colors.blue.shade800;
    }
  }

  IconData _getIcon() {
    switch (type) {
      case SnackBarType.success:
        return Icons.check_circle;
      case SnackBarType.error:
        return Icons.error;
      case SnackBarType.warning:
        return Icons.warning;
      case SnackBarType.info:
        return Icons.info;
    }
  }
}