/**
 * Timeline 移动端 App 入口
 * 
 * 功能描述：
 * React Native 应用入口，配置导航和全局状态管理。
 * 
 * @author Timeline Team
 * @date 2024
 */

import React from 'react';
import { StatusBar } from 'react-native';
import { SafeAreaProvider } from 'react-native-safe-area-context';
import { GestureHandlerRootView } from 'react-native-gesture-handler';
import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
import AppNavigator from './src/navigation/AppNavigator';

// 创建 React Query 客户端
const queryClient = new QueryClient({
  defaultOptions: {
    queries: {
      staleTime: 5 * 60 * 1000, // 5分钟
      cacheTime: 10 * 60 * 1000, // 10分钟
      retry: 2,
      refetchOnWindowFocus: false,
    },
  },
});

/**
 * App 根组件
 * 
 * 组件层级：
 * 1. GestureHandlerRootView - 手势处理
 * 2. SafeAreaProvider - 安全区域
 * 3. QueryClientProvider - 数据请求
 * 4. AppNavigator - 导航
 */
const App: React.FC = () => {
  return (
    <GestureHandlerRootView style={{ flex: 1 }}>
      <SafeAreaProvider>
        <QueryClientProvider client={queryClient}>
          <StatusBar
            barStyle="dark-content"
            backgroundColor="transparent"
            translucent
          />
          <AppNavigator />
        </QueryClientProvider>
      </SafeAreaProvider>
    </GestureHandlerRootView>
  );
};

export default App;