# RWA Mining Admin Web Nginx 配置
# 域名: madmin.szaiai.com
# 放置路径: /etc/nginx/sites-available/madmin.szaiai.com
# 启用: ln -s /etc/nginx/sites-available/madmin.szaiai.com /etc/nginx/sites-enabled/

# HTTP 重定向到 HTTPS
server {
    listen 80;
    listen [::]:80;
    server_name madmin.szaiai.com;

    # Let's Encrypt 验证目录
    location /.well-known/acme-challenge/ {
        root /var/www/certbot;
    }

    # 重定向到 HTTPS
    location / {
        return 301 https://$host$request_uri;
    }
}

# HTTPS 配置
server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name madmin.szaiai.com;

    # SSL 证书 (Let's Encrypt)
    ssl_certificate /etc/letsencrypt/live/madmin.szaiai.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/madmin.szaiai.com/privkey.pem;

    # SSL 配置优化
    ssl_session_timeout 1d;
    ssl_session_cache shared:SSL:50m;
    ssl_session_tickets off;

    # 现代加密套件
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
    ssl_prefer_server_ciphers off;

    # HSTS (可选，启用后请谨慎)
    # add_header Strict-Transport-Security "max-age=63072000" always;

    # 日志
    access_log /var/log/nginx/madmin.szaiai.com.access.log;
    error_log /var/log/nginx/madmin.szaiai.com.error.log;

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

    # 安全头
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;

    # ==========================================================================
    # API 代理到 mining-admin-service (端口 3023)
    # ==========================================================================
    location /api/ {
        proxy_pass http://127.0.0.1:3023/;
        proxy_http_version 1.1;
        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 Authorization $http_authorization;

        # 超时设置
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;

        # CORS 头 (处理预检请求)
        if ($request_method = 'OPTIONS') {
            add_header 'Access-Control-Allow-Origin' '$http_origin' always;
            add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, PATCH, OPTIONS' always;
            add_header 'Access-Control-Allow-Headers' 'Authorization, Content-Type, Accept' always;
            add_header 'Access-Control-Allow-Credentials' 'true' always;
            add_header 'Access-Control-Max-Age' 1728000;
            add_header 'Content-Type' 'text/plain charset=UTF-8';
            add_header 'Content-Length' 0;
            return 204;
        }
    }

    # 反向代理到 Docker 容器 (Next.js 前端)
    location / {
        proxy_pass http://127.0.0.1:3100;
        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;

        # 超时设置
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;
    }

    # 静态资源缓存
    location /_next/static {
        proxy_pass http://127.0.0.1:3100;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        add_header Cache-Control "public, max-age=31536000, immutable";
    }

    # 图片等静态资源
    location ~* \.(ico|css|js|gif|jpeg|jpg|png|woff|woff2|ttf|svg|eot)$ {
        proxy_pass http://127.0.0.1:3100;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        expires 30d;
        add_header Cache-Control "public, no-transform";
    }
}