# Photography Portfolio Frontend - Default Site Configuration
# 静态文件服务和缓存策略

server {
    listen 80;
    server_name localhost;
    root /usr/share/nginx/html;
    index index.html;

    # 安全配置
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header Referrer-Policy "no-referrer-when-downgrade" always;

    # 主页面路由
    location / {
        try_files $uri $uri/ /index.html;
        
        # 缓存策略 - HTML文件不缓存
        add_header Cache-Control "no-cache, no-store, must-revalidate";
        add_header Pragma "no-cache";
        add_header Expires "0";
    }

    # 静态资源缓存策略
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
        add_header Vary "Accept-Encoding";
        
        # 跨域配置
        add_header Access-Control-Allow-Origin "*";
        add_header Access-Control-Allow-Methods "GET, POST, OPTIONS";
        add_header Access-Control-Allow-Headers "DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range";
    }

    # Next.js 静态文件
    location /_next/static/ {
        expires 1y;
        add_header Cache-Control "public, immutable";
    }

    # API 代理 (如果需要)
    location /api/ {
        proxy_pass http://api.photography.iriver.top;
        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 30s;
        proxy_read_timeout 30s;
        
        # 缓存配置
        proxy_cache_bypass $http_upgrade;
        proxy_no_cache $http_upgrade;
    }

    # 健康检查
    location /health {
        access_log off;
        return 200 "healthy\n";
        add_header Content-Type text/plain;
    }

    # 错误页面
    error_page 404 /404.html;
    error_page 500 502 503 504 /50x.html;
    
    location = /50x.html {
        root /usr/share/nginx/html;
    }

    # 安全配置 - 隐藏敏感文件
    location ~ /\. {
        deny all;
    }
    
    location ~* \.(htaccess|htpasswd|ini|log|sh|sql|conf)$ {
        deny all;
    }
}