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

  gzip on;
  gzip_comp_level 5;
  gzip_min_length 256;
  gzip_types
    text/css
    text/javascript
    application/javascript
    application/json
    application/xml
    image/svg+xml;

  # Vite 產物：檔名含 hash，可長期快取
  location /assets/ {
    add_header Cache-Control "public, max-age=31536000, immutable";
    try_files $uri =404;
  }

  location /downloads/ {
    add_header Cache-Control "public, max-age=86400";
    try_files $uri =404;
  }

  location /illustrations/ {
    add_header Cache-Control "public, max-age=86400";
    try_files $uri =404;
  }

  # SPA 入口與路由：不快取，避免部署後仍載入舊版 shell
  location = /index.html {
    add_header Cache-Control "no-cache";
    try_files $uri =404;
  }

  location /api/ {
    proxy_pass http://api:8890;
    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_buffering off;
    proxy_read_timeout 3600s;
    proxy_send_timeout 3600s;
  }

  location / {
    try_files $uri $uri/ /index.html;
  }
}