js_import njs/main.js;
js_set $quiz_room_host main.getQuizRoomHost;

map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}

# Cache for room information
# keyval_zone zone=rooms:10m;
# keyval_zone zone=room_hosts:10m;
# keyval $room_id $room_info zone=rooms;

upstream frontend {
    server frontend:5173;
}

upstream backend {
    server backend:3000;
}

server {
    listen 80;

    location /api {
        rewrite /backend/(.*) /$1 break;
        proxy_pass http://backend;
    }

    location /socket.io {
        rewrite /backend/(.*) /$1 break;
        proxy_pass http://backend;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "Upgrade";
        proxy_set_header Host $host;
        proxy_hide_header 'Access-Control-Allow-Origin';
    }

    location /quiz/([^/]+)/socket {
        # Routing logic
        set $room_id $1;
        js_content main.routeWebSocket;

        #Proxy headers
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_read_timeout 3600s;
        proxy_send_timeout 3600s;
        proxy_buffering off;
    }

    location / {
        proxy_pass http://frontend;
    }

}