server {
    listen 80;
    server_name _;

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

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

    # 管理 API + 代理端点 → Go 服务
    location /api/ {
        proxy_pass http://api:8080;
        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;
    }
    location /v1/ {
        proxy_pass http://api:8080;
        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;
        # SSE 流式透传：关闭缓冲
        proxy_buffering off;
        proxy_cache off;
        proxy_read_timeout 300s;
    }

    # 静态资源缓存
    location /assets/ {
        expires 30d;
        add_header Cache-Control "public, immutable";
    }

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