events {
    worker_connections 1024;
}

http {
    upstream fastapi_backend {
        server web:8000;
    }

    server {
        listen 80;
        server_name localhost;

        # 设置客户端最大体上传大小 (用于文件上传)
        client_max_body_size 100M;

        # 代理配置
        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_set_header X-Forwarded-Proto $scheme;

        # WebSocket 支持
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";

        location / {
            proxy_pass http://fastapi_backend;
            
            # 超时设置
            proxy_connect_timeout       60s;
            proxy_send_timeout          60s;
            proxy_read_timeout          60s;
        }

        # WebSocket 特殊处理
        location /ws {
            proxy_pass http://fastapi_backend;
            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_set_header X-Forwarded-Proto $scheme;
            
            # WebSocket 超时设置
            proxy_read_timeout 86400;
        }

        # 静态文件处理
        location /uploads/ {
            proxy_pass http://fastapi_backend;
        }
    }
}