server {
    listen 80 default_server;
    server_name _;

    client_max_body_size 10G;

    # Downloads directory (installers, packages)
    location /downloads/ {
        alias /opt/depl0y/static/downloads/;
        autoindex on;
        autoindex_exact_size off;
        autoindex_localtime on;
        add_header Content-Type "application/octet-stream";
        # Disable caching for installers and packages
        add_header Cache-Control "no-store, no-cache, must-revalidate, proxy-revalidate, max-age=0" always;
        add_header Pragma "no-cache" always;
        add_header Expires "0" always;
    }

    # Install script (legacy support)
    location = /install.sh {
        alias /opt/depl0y/static/downloads/install.sh;
        default_type text/plain;
        add_header Content-Type "text/plain; charset=utf-8";
        # Disable caching for installer
        add_header Cache-Control "no-store, no-cache, must-revalidate, proxy-revalidate, max-age=0" always;
        add_header Pragma "no-cache" always;
        add_header Expires "0" always;
    }

    # Hashed JS/CSS assets — long-term cache (content-addressed, safe)
    location ~* ^/assets/.*\.(js|css)$ {
        root /opt/depl0y/frontend/dist;
        add_header Cache-Control "public, max-age=31536000, immutable";
        try_files $uri =404;
    }

    # SPA — never cache HTML; try_files fallback to index.html must also be uncached
    location / {
        root /opt/depl0y/frontend/dist;
        try_files $uri $uri/ /index.html;
        add_header Cache-Control "no-store, no-cache, must-revalidate, proxy-revalidate, max-age=0" always;
        add_header Pragma "no-cache" always;
        add_header Expires "0" always;
    }

    # Backend API
    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_http_version 1.1;
        proxy_connect_timeout 300s;
        proxy_send_timeout 300s;
        proxy_read_timeout 300s;
        # Disable caching for API responses
        proxy_cache_bypass 1;
        proxy_no_cache 1;
        add_header Cache-Control "no-store, no-cache, must-revalidate, proxy-revalidate, max-age=0" always;
        add_header Pragma "no-cache" always;
        add_header Expires "0" always;
    }

    location /health {
        proxy_pass http://127.0.0.1:8000/health;
        access_log off;
    }
}