#!/bin/bash
set -euo pipefail

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
VENV_DIR="$ROOT_DIR/.venv"
REQ_FILE="$ROOT_DIR/demo/requirements.txt"
UI_PORT="${UI_PORT:-8420}"
if [ -f "$ROOT_DIR/.env" ]; then
  set -a
  source "$ROOT_DIR/.env"
  set +a
fi
S2S_PROXY_TARGET="${S2S_PROXY_TARGET:-ws://ai-server:12345/v1/realtime}"

if ! command -v python3 >/dev/null 2>&1; then
  echo "Errore: python3 non trovato."
  exit 1
fi

if [ ! -d "$VENV_DIR" ]; then
  echo "Creazione ambiente virtuale in .venv..."
  python3 -m venv "$VENV_DIR"
fi

source "$VENV_DIR/bin/activate"

if [ ! -f "$REQ_FILE" ]; then
  echo "Errore: file requirements non trovato: $REQ_FILE"
  exit 1
fi

if ! python -c "import fastapi, uvicorn, httpx, huggingface_hub, dotenv" >/dev/null 2>&1; then
  echo "Installazione dipendenze da demo/requirements.txt..."
  python -m pip install -r "$REQ_FILE"
fi

export S2S_PROXY_TARGET

echo "💻 Avvio dell'interfaccia Demo UI (Porta $UI_PORT)..."
echo "🔌 Proxy realtime verso $S2S_PROXY_TARGET"
echo "💡 Premi Ctrl+C in questo terminale per fermarla."
echo "----------------------------------------------------"

cd "$ROOT_DIR"
PYTHONPATH=demo python -m uvicorn demo.server:app --host 0.0.0.0 --port "$UI_PORT" --reload