#!/usr/bin/env bash
# Start the standalone demo client page for LAN access.
# Backend must be running first: cd backend && docker compose up -d --build
# Usage: ./start.sh [port]

set -euo pipefail

ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
cd "$ROOT"

PORT="${1:-${DEMO_PORT:-38081}}"
HOST="${DEMO_HOST:-0.0.0.0}"
API_PORT="${API_PORT:-38080}"

LAN_IP="$(python3 - <<'PY'
import socket

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
try:
    s.connect(("8.8.8.8", 80))
    print(s.getsockname()[0])
except OSError:
    print("")
finally:
    s.close()
PY
)"

echo "Demo client listening on ${HOST}:${PORT}"
echo "Local: http://127.0.0.1:${PORT}/"
if [[ -n "${LAN_IP}" && ( "${HOST}" == "0.0.0.0" || "${HOST}" == "::" ) ]]; then
  echo "LAN:   http://${LAN_IP}:${PORT}/"
  echo "Base URL: http://${LAN_IP}:${API_PORT}"
fi

exec python3 server.py --host "$HOST" -p "$PORT"