user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;

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

http {
    include /etc/nginx/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" '
                    'rt=$request_time uct="$upstream_connect_time" '
                    'uht="$upstream_header_time" urt="$upstream_response_time"';

    access_log /var/log/nginx/access.log main;

    # 基本设置
    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    server_tokens off;

    # 客户端设置
    client_max_body_size 10M;
    client_body_timeout 60s;
    client_header_timeout 60s;

    # Gzip 压缩
    gzip on;
    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_types
        text/plain
        text/css
        text/xml
        text/javascript
        application/json
        application/javascript
        application/xml+rss
        application/atom+xml;

    # 上游服务器配置
    upstream tyapi_backend {
        server tyapi-app:8080;
        keepalive 32;
    }

    upstream grafana_backend {
        server grafana:3000;
        keepalive 16;
    }

    upstream prometheus_backend {
        server prometheus:9090;
        keepalive 16;
    }

    upstream minio_backend {
        server minio:9000;
        keepalive 16;
    }

    upstream minio_console_backend {
        server minio:9001;
        keepalive 16;
    }

    upstream jaeger_backend {
        server jaeger:16686;
        keepalive 16;
    }

    upstream pgadmin_backend {
        server pgadmin:80;
        keepalive 16;
    }

    # HTTP 服务器配置
    server {
        listen 80;
        server_name _;

        # 健康检查端点
        location /health {
            proxy_pass http://tyapi_backend/health;
            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;
        }

        # API 路由
        location /api/ {
            proxy_pass http://tyapi_backend;
            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;
            
            # 超时设置
            proxy_connect_timeout 30s;
            proxy_send_timeout 60s;
            proxy_read_timeout 60s;
            
            # 缓冲设置
            proxy_buffering on;
            proxy_buffer_size 4k;
            proxy_buffers 8 4k;
        }

        # Swagger 文档
        location /swagger/ {
            proxy_pass http://tyapi_backend;
            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;
        }

        # 根路径重定向到API文档
        location = / {
            return 301 /swagger/index.html;
        }

        # Grafana 仪表盘
        location /grafana/ {
            proxy_pass http://grafana_backend/;
            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";
        }

        # Prometheus 监控
        location /prometheus/ {
            proxy_pass http://prometheus_backend/;
            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;
        }

        # Jaeger 链路追踪
        location /jaeger/ {
            proxy_pass http://jaeger_backend/;
            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;
        }

        # MinIO 对象存储 API
        location /minio/ {
            proxy_pass http://minio_backend/;
            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;
            
            # MinIO 需要的特殊头
            proxy_set_header X-Forwarded-Host $host;
            client_max_body_size 1000M;
        }

        # MinIO 控制台
        location /minio-console/ {
            proxy_pass http://minio_console_backend/;
            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";
        }

        # pgAdmin 数据库管理
        location /pgadmin/ {
            proxy_pass http://pgadmin_backend/;
            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_set_header X-Script-Name /pgadmin;
        }

        # 限制某些路径的访问
        location ~* \.(git|env|log)$ {
            deny all;
            return 404;
        }
    }

    # HTTPS 服务器配置 (可选，需要SSL证书)
    # server {
    #     listen 443 ssl http2;
    #     server_name your-domain.com;

    #     ssl_certificate /etc/nginx/ssl/server.crt;
    #     ssl_certificate_key /etc/nginx/ssl/server.key;
    #     ssl_protocols TLSv1.2 TLSv1.3;
    #     ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384;
    #     ssl_prefer_server_ciphers off;

    #     # HSTS
    #     add_header Strict-Transport-Security "max-age=63072000" always;

    #     location / {
    #         proxy_pass http://tyapi_backend;
    #         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;
    #     }
    # }
}