worker_processes 1;

events {
    worker_connections 1024;
}

http {
    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    sendfile on;
    keepalive_timeout 65;
    client_max_body_size 0;

    server {
        listen 7860;
        server_name _;

        # -----------------------------
        # code-server (主入口，需要密码)
        # -----------------------------
        location / {
            proxy_pass http://127.0.0.1:8443;
            proxy_http_version 1.1;

            # WebSocket support (code-server 编辑器需要)
            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;

            # 长连接超时
            proxy_read_timeout 86400s;
            proxy_send_timeout 86400s;
        }

        # -----------------------------
        # dufs 文件服务 (公开，无需登录)
        # -----------------------------
        location /files/ {
            proxy_pass http://127.0.0.1:5000;
            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;

            # CORS 支持
            add_header Access-Control-Allow-Origin *;
            add_header Access-Control-Allow-Methods 'GET, POST, PUT, DELETE, OPTIONS, PROPFIND, MKCOL, COPY, MOVE';
            add_header Access-Control-Allow-Headers 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization,Depth';
            add_header Access-Control-Max-Age 86400;

            # dufs WebDAV 需要
            proxy_set_header X-Forwarded-Prefix /files;

            # OPTIONS 预检请求直接返回
            if ($request_method = OPTIONS) {
                add_header Access-Control-Allow-Origin *;
                add_header Access-Control-Allow-Methods 'GET, POST, PUT, DELETE, OPTIONS, PROPFIND, MKCOL, COPY, MOVE';
                add_header Access-Control-Allow-Headers 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization,Depth';
                add_header Access-Control-Max-Age 86400;
                add_header Content-Length 0;
                add_header Content-Type text/plain;
                return 204;
            }
        }

        # -----------------------------
        # 旧的 absproxy 路径，重定向到新路径
        # -----------------------------
        location /absproxy/5000/ {
            return 301 /files/;
        }
    }
}