# Flutter web + reverse-proxy to core-backend (same origin for msn.iykyka.com).
# API/WS paths match core-backend routes used by mobile/lib.
# Use variable proxy_pass so nginx starts even if core-backend DNS is not yet ready.

server {
    listen 80;
    server_name _;

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

    # Docker Compose embedded DNS
    resolver 127.0.0.11 valid=10s ipv6=off;

    # Flutter SPA
    location / {
        try_files $uri $uri/ /index.html;
    }

    # Core API + WebSocket (internal service name from docker-compose)
    location ~ ^/(health|demo|auth|invites|admin|conversations|messages|users|ws)(/|$) {
        set $upstream_core core-backend:8080;
        proxy_pass http://$upstream_core;
        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;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_read_timeout 86400s;
        proxy_send_timeout 86400s;
    }
}