server {
    listen 80;
    server_name your-domain.com;

    # 前端静态资源 (Music Canvas)
    location / {
        proxy_pass http://127.0.0.1:7481;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    # 音乐 API 代理 (解决 HTTPS 握手和 Host 问题)
    location /music-api {
        # 将 /music-api 映射到 /api
        # 例如: /music-api?source=... -> https://music-dl.sayqz.com/api?source=...
        rewrite ^/music-api/?(.*)$ /api/$1 break;
        
        proxy_pass https://music-dl.sayqz.com;
        
        # [关键] 开启 SSL Server Name Indication (SNI)，否则 HTTPS 握手会失败
        proxy_ssl_server_name on;
        
        # [关键] 设置正确的 Host 头，或者直接删掉这行让 Nginx 自动使用 proxy_pass 的域名
        # 千万不要设置为 $host，因为对方服务器不认识你的域名
        proxy_set_header Host music-dl.sayqz.com;
        
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    # 同步服务 API 代理
    location /api/ {
        proxy_pass http://127.0.0.1:7482/;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        
        add_header 'Access-Control-Allow-Origin' '*';
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
    }
}