# nginx reverse proxy — sits in front of the app container
# This config is mounted into the nginx-proxy container in docker-compose.
upstream app {
    # Points to the web service by container name (docker DNS)
    server web:8080;
}

server {
    listen 80;
    server_name djosen.one www.djosen.one;

    # Proxy all requests to the app container
    location / {
        proxy_pass http://app;
        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;

        # WebSocket support (not currently used, but forward-looking)
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";

        # Buffering: off for WebGPU/streaming, but on for static is fine.
        # We serve static from the app container's nginx, so keep this simple.
    }

    # Health-check endpoint — used by the webhook deploy script to verify liveness
    location /health {
        access_log off;
        default_type text/plain;
        return 200 "ok";
    }

    # Security
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-Frame-Options "DENY" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;

    # Logs
    access_log /var/log/nginx/access.log;
    error_log  /var/log/nginx/error.log;
}