# 前端容器内部 nginx 配置
# 遵循瑞小美系统技术栈标准 - 性能优化版

server {
    listen 80;
    server_name localhost;
    
    root /usr/share/nginx/html;
    index index.html;
    
    # 启用 gzip 压缩
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_buffers 16 8k;
    gzip_types text/plain text/css text/xml application/json application/javascript application/xml+rss application/atom+xml image/svg+xml;
    
    # 启用预压缩文件（.gz）
    gzip_static on;
    
    # 静态资源缓存 - 带哈希的文件长期缓存
    location /assets {
        expires 1y;
        add_header Cache-Control "public, max-age=31536000, immutable";
        
        # 安全头
        add_header X-Content-Type-Options nosniff;
    }
    
    # JS/CSS 文件缓存
    location ~* \.(js|css)$ {
        expires 1y;
        add_header Cache-Control "public, max-age=31536000, immutable";
    }
    
    # 图片资源缓存
    location ~* \.(ico|gif|jpg|jpeg|png|webp|svg)$ {
        expires 30d;
        add_header Cache-Control "public, max-age=2592000";
    }
    
    # 字体文件缓存
    location ~* \.(woff|woff2|ttf|eot)$ {
        expires 1y;
        add_header Cache-Control "public, max-age=31536000";
        add_header Access-Control-Allow-Origin "*";
    }
    
    # HTML 文件不缓存（SPA 入口）
    location = /index.html {
        expires -1;
        add_header Cache-Control "no-store, no-cache, must-revalidate, proxy-revalidate";
    }
    
    # SPA 路由支持
    location / {
        try_files $uri $uri/ /index.html;
        
        # 安全头
        add_header X-Frame-Options "SAMEORIGIN" always;
        add_header X-XSS-Protection "1; mode=block" always;
        add_header X-Content-Type-Options "nosniff" always;
    }
    
    # 健康检查
    location /health {
        access_log off;
        return 200 "healthy\n";
        add_header Content-Type text/plain;
    }
    
    # 禁止访问隐藏文件
    location ~ /\. {
        deny all;
        access_log off;
        log_not_found off;
    }
}