worker_processes auto;

events {
    worker_connections  1024;
    use epoll;
    accept_mutex on;
    multi_accept on;    
}

http {
    # 基础配置
    include mime.types;
    default_type application/octet-stream;
    
    # 日志格式
    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                    '$status $body_bytes_sent "$http_referer" '
                    '"$http_user_agent" "$http_x_forwarded_for"';
    
    access_log /var/log/nginx/access.log main;
    error_log /var/log/nginx/error.log warn;
    
    # 性能优化
    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    client_max_body_size 100M;
    
    # Gzip 压缩
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_types text/plain text/css text/xml text/javascript 
               application/json application/javascript application/xml+rss 
               application/atom+xml image/svg+xml;    

    upstream appfast {
        server localhost:8000;
        keepalive 32;
    }

    upstream appflask {
        server localhost:5000;
        keepalive 32;
    }

    upstream supervisor {
        server localhost:9001;
        keepalive 32;
    }

    upstream appdjango {
        server localhost:8001;
        keepalive 32;
    }

    server {
        listen 7860;
        server_name localhost;

        location /root {
            alias "/app";
            charset utf-8;
            autoindex on;
        }

        # 健康检查端点
        location /health {
            access_log off;
            add_header Content-Type application/json;
            return 200 '{"status": "healthy", "timestamp": "$time_iso8601", "services": ["nginx", "fastapi", "flask"]}';
        }
        
        # 服务状态端点
        location /status {
            proxy_pass http://supervisor;
            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;
            allow 127.0.0.1;
            deny all;
        }        

        location /status2 {
            # nginx status
            stub_status on;
            access_log off;
        }

        # 静态文件
        location /static/ {
            alias /app/static/;
            expires 30d;
            add_header Cache-Control "public, immutable";
        }

         # API 路由
        location /appfast/ {
            proxy_pass http://appfast/;
            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";
            
            # 超时设置
            proxy_connect_timeout 60s;
            proxy_send_timeout 60s;
            proxy_read_timeout 60s;
        }
        
        location /appflask/ {
            proxy_pass http://appflask/;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }

        location /supervisor/ {
            proxy_pass http://supervisor/;
            proxy_set_header Host $host:$proxy_port;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Host $http_host;
            proxy_set_header X-Forwarded-Port $server_port;
            proxy_set_header X-Forwarded-Proto $scheme;
        }

        # appdjango 媒体文件
        location /media/ {
            alias /app/app_django/media/;
            expires 30d;
        }

        # API 路由
        location /api/ {
            proxy_pass http://appdjango;
            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";
            
            # 超时设置
            proxy_connect_timeout 60s;
            proxy_send_timeout 60s;
            proxy_read_timeout 60s;
        }

        # 管理后台
        location /admin/ {
            proxy_pass http://appdjango;
            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;
        }

        # 根路径
        #location / {
        #    proxy_pass http://appdjango;
        #    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;
        #}
    }
}