upstream backend { server backend:5000; }

server {
    listen 80;
    server_name _;

    root /usr/share/nginx/html;
    index index.html;

    access_log /dev/stdout;
    error_log  /dev/stderr;

    client_max_body_size 20M;

    # --- Django: API, admin, its static assets ---
    location /api/ {
        proxy_pass http://backend;
        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_read_timeout 60s;
    }

    location /admin/ {
        proxy_pass http://backend;
        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;
    }

    # Django's own static files (admin, DRF, swagger) via WhiteNoise.
    location /static/ {
        proxy_pass http://backend;
        proxy_set_header Host              $host;
        proxy_set_header X-Forwarded-Proto $scheme;
    }

    # --- user uploads, from the shared `media` volume ---
    location /media/ {
        alias /app/media/;
        access_log off;
    }

    # --- the SPA ---
    # Hashed bundles are immutable; the entry document must never be cached,
    # or a deploy leaves browsers asking for chunks that no longer exist.
    location /assets/ {
        add_header Cache-Control "public, max-age=31536000, immutable" always;
        try_files $uri =404;
    }

    location / {
        try_files $uri $uri/ /index.html;
        add_header Cache-Control "no-cache";
    }
}