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

    # Proxy des appels API vers le backend (même origine => cookie httpOnly OK)
    location /api/ {
        proxy_pass http://backend:3001;
        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;
    }

    # Important pour les Single Page Applications (React Router)
    location / {
        try_files $uri $uri/ /index.html;
    }

    # Mise en cache agressive pour les assets statiques fingerprintés
    location ~* \.(?:css|js|gif|jpe?g|png|woff2?|eot|ttf|svg|webp|ico|pdf)$ {
        expires 6M;
        access_log off;
        add_header Cache-Control "public, max-age=15552000, immutable";
    }

    # Jamais de cache sur les fichiers pilotant les mises à jour PWA
    location = /index.html {
        add_header Cache-Control "no-cache, must-revalidate";
    }
    location = /sw.js {
        add_header Cache-Control "no-store, no-cache, must-revalidate, max-age=0";
    }
    location = /manifest.webmanifest {
        add_header Cache-Control "no-cache, must-revalidate";
        types { } default_type application/manifest+json;
    }
    location ~* ^/workbox-.*\.js$ {
        add_header Cache-Control "public, max-age=15552000, immutable";
    }
}