server {
    listen 80;
    server_name _;

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

    # ── API proxy → Fastify ──────────────────────────────────────────────────
    location /api/ {
        proxy_pass http://server:3001;
        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;
    }

    # ── SEO proxy → Fastify (dynamique depuis DB) ─────────────────────────────
    location = /robots.txt {
        proxy_pass http://server:3001;
        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;
    }

    location = /sitemap.xml {
        proxy_pass http://server:3001;
        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;
    }

    # ── Admin proxy → Fastify (AdminJS) ──────────────────────────────────────
    location /admin {
        proxy_pass http://server:3001;
        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;
    }

    # ── Cache : Astro hashed files → immutable ───────────────────────────────
    location /_astro/ {
        add_header Cache-Control "public, max-age=31536000, immutable";
    }

    # ── Cache : CSS/JS sans hash → revalidation ─────────────────────────────
    location ~* \.(css|js)$ {
        add_header Cache-Control "no-cache";
    }

    # ── Cache : assets (images, fonts) → 7 jours ────────────────────────────
    location ~* \.(jpg|jpeg|png|gif|webp|svg|woff2|woff|ttf|ico)$ {
        add_header Cache-Control "public, max-age=604800";
    }

    # ── HTML : jamais caché ──────────────────────────────────────────────────
    location ~* \.html$ {
        add_header Cache-Control "no-store";
    }

    # ── SPA fallback pour les routes Astro ───────────────────────────────────
    location / {
        try_files $uri $uri/ $uri.html /index.html;
    }
}