server {
    listen       80;
    server_name  localhost;

    #access_log  /var/log/nginx/host.access.log  main;
    
    root   /usr/share/nginx/html;
    index  index.html;

    # 缓存静态资源
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
        expires 1y;
        add_header Cache-Control "public, max-age=31536000, immutable";
    }

    # API请求代理到后端服务 - 使用相对路径
    location /api/ {
        proxy_pass http://backend:8888/api/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_cache_bypass $http_upgrade;
        proxy_read_timeout 300s;
    }

    location /login {
        proxy_pass http://backend:8888/login;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_cache_bypass $http_upgrade;
    }

    location /check_auth {
        proxy_pass http://backend:8888/check_auth;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_cache_bypass $http_upgrade;
    }

    location /need_login {
        proxy_pass http://backend:8888/need_login;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_cache_bypass $http_upgrade;
    }

    location /config {
        proxy_pass http://backend:8888/config;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_cache_bypass $http_upgrade;
    }

    location /analyze {
        proxy_pass http://backend:8888/analyze;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_cache_bypass $http_upgrade;
        proxy_read_timeout 300s;
    }

    # 所有其他路由返回index.html（SPA应用需要）
    location / {
        try_files $uri $uri/ /index.html;
    }

    # 错误页面
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }
}