# 与 nginx/web.conf 保持同步；compose 挂载到 web 容器
server {
  listen 80;
  root /usr/share/nginx/html;
  index index.html;

  # 根路径下的验证文件走热加载目录
  location ~ ^/([A-Za-z0-9._-]+\.(txt|html|xml))$ {
    alias /verify-root/$1;
  }

  # 静态资源必须真实存在，避免错误回退成 index.html 导致白屏
  location ^~ /assets/ {
    try_files $uri =404;
    access_log off;
    expires 7d;
    add_header Cache-Control "public, immutable";
  }

  # SPA 入口：勿长期缓存，否则发版后用户仍可能拿到旧 index
  location = /index.html {
    add_header Cache-Control "no-cache, no-store, must-revalidate";
    expires -1;
  }

  # web/public 挂载到 /var/www/yh-public：与 dist 根目录同 URL（如 /logo.png），优先读挂载，无则回退 dist
  location ~ ^/([^/]+\.(?:png|jpe?g|gif|ico|svg|webp|webmanifest))$ {
    root /var/www/yh-public;
    try_files /$1 @dist_root_public;
    expires 7d;
    add_header Cache-Control "public, max-age=604800";
  }
  location @dist_root_public {
    root /usr/share/nginx/html;
    try_files $uri =404;
    expires 7d;
    add_header Cache-Control "public, max-age=604800";
  }

  # web/public/social/ → 关注我们二维码等（挂载 /var/www/yh-public）
  location ^~ /social/ {
    alias /var/www/yh-public/social/;
    expires 7d;
    add_header Cache-Control "public, max-age=604800";
  }

  # 推广素材：含视频/封面等大文件，浏览器可长期缓存减轻二次访问流量
  # 宿主机 ./web/promotion 挂载覆盖本路径，改素材后依赖 max-age 到期或用户强刷
  location ^~ /promotion/ {
    try_files $uri =404;
    expires 7d;
    add_header Cache-Control "public, max-age=604800";
  }

  location = / {
    try_files /index.html =404;
  }

  # Vue SPA：直接访问 /test 等路径须落到 index.html，否则会 nginx 404
  location / {
    try_files $uri $uri/ /index.html;
  }
}