import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:em2rp/models/role_model.dart';
import 'package:em2rp/providers/local_user_provider.dart';

class PermissionGate extends StatelessWidget {
  final Widget child;
  final List<Permission> requiredPermissions;
  final bool requireAll;
  final Widget? fallback;

  const PermissionGate({
    super.key,
    required this.child,
    required this.requiredPermissions,
    this.requireAll = true,
    this.fallback,
  });

  @override
  Widget build(BuildContext context) {
    return Consumer<LocalUserProvider>(
      builder: (context, localUserProvider, _) {
        final currentUser = localUserProvider.currentUser;
        if (currentUser == null) {
          return fallback ?? const SizedBox.shrink();
        }

        final userRole = Roles.fromString(currentUser.role);
        final hasPermission = requireAll
            ? userRole.hasAllPermissions(requiredPermissions)
            : userRole.hasAnyPermission(requiredPermissions);

        if (hasPermission) {
          return child;
        }

        return fallback ?? const SizedBox.shrink();
      },
    );
  }
}