import 'package:chicken_farm/core/utils/logger.dart';
import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:chicken_farm/stores/auth_store.dart';
import 'package:chicken_farm/routes/app_routes.dart';

class RouteGuard {
  static String? redirectLogic(BuildContext context, GoRouterState state) {
    final container = ProviderScope.containerOf(context);
    final authState = container.read(authStoreProvider);
    final isGoingToLogin = state.matchedLocation == '/login';
    logger.d(
      "-- redirect -- path: ${state.matchedLocation} state: ${authState.state}",
    );
    if (authState.state == AuthState.loading) return null; // 加载中不跳转

    // 如果已经认证，且当前在登录页或启动页，则跳转到主页
    if (authState.state == AuthState.authenticated && 
        (isGoingToLogin || state.matchedLocation == '/')) {
      return AppRouteNames.home;
    }

    // 如果未认证，且不是前往登录页或启动页，则跳转到登录页
    if (authState.state != AuthState.authenticated &&
        !isGoingToLogin &&
        state.matchedLocation != '/') {
      return '/login';
    }

    return null;
  }
}