server {
    listen 80;

    # Serve web static files
    root /wally/web;
    index index.html;

    gzip on;
    gzip_comp_level 5;
    gzip_min_length 1024;
    gzip_types application/json application/javascript text/javascript text/css image/svg+xml application/manifest+json;

    add_header X-Content-Type-Options nosniff always;
    add_header Referrer-Policy same-origin always;
    add_header X-Frame-Options SAMEORIGIN always;
    # Every file is checked with the server before it is used (a quick 304 when unchanged), so after
    # an upgrade the browser never mixes old and new scripts. Set here, once: nginx drops the
    # headers above in any location that adds its own.
    add_header Cache-Control "no-cache" always;

    # Proxy /api/ requests to FastAPI, without the /api prefix (uvicorn runs with --root-path /api,
    # so the docs at /api/docs link to the right places)
    location /api/ {
        proxy_pass http://127.0.0.1:8000/;
        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;
        client_max_body_size 64m;
    }

    # The service worker is never the app's page
    location = /sw.js {
        try_files $uri =404;
    }
    # The app's page, matched exactly so the old 1.x redirects below never catch it
    location = /index.html {
    }

    # Files keep their name; everything else is the app's one page (/transactions, /settings/people...)
    location / {
        try_files $uri /index.html;
    }

    # Old 1.x pages
    location = /login { return 301 /; }
    location ~ ^/(index|transactions|settings|login)\.html$ { return 301 /$1; }
}