user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log notice;
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" '
                    '$request_time $upstream_response_time';

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

    # 基础配置
    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    server_tokens off;

    # Gzip压缩
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    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
        image/svg+xml;

    # 客户端配置
    client_max_body_size 50M;
    client_body_buffer_size 128k;
    client_header_buffer_size 32k;
    large_client_header_buffers 4 32k;

    # 代理配置
    proxy_connect_timeout 60s;
    proxy_send_timeout 60s;
    proxy_read_timeout 60s;
    proxy_buffer_size 64k;
    proxy_buffers 4 64k;
    proxy_busy_buffers_size 128k;
    proxy_temp_file_write_size 128k;

    # 上游服务器定义 - Docker容器服务
    upstream emotion-gateway {
        server emotion-gateway:9000 max_fails=3 fail_timeout=30s;
        keepalive 32;
    }

    upstream emotion-ai {
        server emotion-ai:9002 max_fails=3 fail_timeout=30s;
        keepalive 32;
    }

    upstream emotion-user {
        server emotion-user:9001 max_fails=3 fail_timeout=30s;
        keepalive 32;
    }

    # 限流配置
    limit_req_zone $binary_remote_addr zone=api:10m rate=10r/s;
    limit_req_zone $binary_remote_addr zone=web:10m rate=20r/s;

    # 包含站点配置
    include /etc/nginx/conf.d/*.conf;
}