# Nginx 配置模板 - CRM 系统
server {
    listen 80;
    server_name crm.yourdomain.com;  # 修改为你的域名或服务器 IP

    # 字符集
    charset utf-8;

    # 日志配置
    access_log /var/log/nginx/crm-access.log;
    error_log /var/log/nginx/crm-error.log;

    # 客户端上传大小限制
    client_max_body_size 10M;

    # 安全头
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;

    # 反向代理到 Node.js 应用
    location / {
        proxy_pass http://localhost:3002;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        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_cache_bypass $http_upgrade;
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;
    }

    # 静态文件缓存
    location ~* \.(jpg|jpeg|png|gif|ico|css|js)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
        access_log off;
    }
}

# HTTPS 配置 (启用 SSL 后取消注释)
# server {
#     listen 443 ssl http2;
#     server_name crm.yourdomain.com;
#     ssl_certificate /etc/letsencrypt/live/crm.yourdomain.com/fullchain.pem;
#     ssl_certificate_key /etc/letsencrypt/live/crm.yourdomain.com/privkey.pem;
#     ssl_protocols TLSv1.2 TLSv1.3;
#     ssl_ciphers HIGH:!aNULL:!MD5;
#     add_header Strict-Transport-Security "max-age=31536000" always;
#     # 其他配置同上...
# }