server {
    listen 80;
    server_name _;

    root /usr/share/nginx/html;
    index index.html;

    gzip on;
    gzip_types text/plain text/css application/javascript application/json image/svg+xml;
    gzip_min_length 1024;

    # SPA 路由回退
    location / {
        try_files $uri $uri/ /index.html;
    }

    # 上传大文件（模型 / 动作）时不要过早断开
    client_max_body_size 512m;

    location /api/ {
        proxy_pass http://api:3000;
        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_set_header X-Forwarded-Proto $scheme;
        proxy_read_timeout 600s;
        proxy_send_timeout 600s;
    }

    location /health {
        proxy_pass http://api:3000;
        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_set_header X-Forwarded-Proto $scheme;
    }
}