# ================================================================
# VetCopilot Nginx 主配置
# ================================================================

user nginx;
worker_processes auto;
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（含请求耗时）
    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                    '$status $body_bytes_sent "$http_referer" '
                    '"$http_user_agent" $request_time';

    access_log /var/log/nginx/access.log main buffer=16k;
    error_log /var/log/nginx/error.log warn;

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;

    # 安全头
    server_tokens off;

    # 超时配置
    keepalive_timeout 65;
    client_body_timeout 30;
    client_header_timeout 30;
    send_timeout 30;

    # 上传大小限制
    client_max_body_size 100m;

    # Gzip 压缩
    gzip on;
    gzip_min_length 1000;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml text/javascript image/svg+xml;
    gzip_vary on;

    # 安全限制
    limit_req_zone $binary_remote_addr zone=api_limit:10m rate=10r/s;
    limit_conn_zone $binary_remote_addr zone=conn_limit:10m;

    include /etc/nginx/conf.d/*.conf;
}