#!/bin/bash

DIR="$(cd "$(dirname "$0")" && pwd)"

echo "============================================"
echo "  Chat com IA - Flask + OpenRouter"
echo "============================================"
echo ""

PYTHON=""
for cmd in python3 python; do
  if command -v "$cmd" &>/dev/null; then
    PYTHON="$cmd"
    break
  fi
done
if [ -z "$PYTHON" ]; then
  echo "Erro: Python nao encontrado."
  exit 1
fi

VENV_DIR="$DIR/venv"

# Verifica se o venv e funcional
if [ -f "$VENV_DIR/bin/activate" ] && $PYTHON -c "import flask" 2>/dev/null; then
  echo "[1/3] Ambiente virtual funcional."
  source "$VENV_DIR/bin/activate"
else
  echo "[1/2] Instalando dependencias..."
  $PYTHON -m pip install --upgrade pip -q 2>/dev/null || true
  $PYTHON -m pip install -r "$DIR/requirements.txt" -q --break-system-packages 2>/dev/null || \
  $PYTHON -m pip install -r "$DIR/requirements.txt" -q 2>/dev/null || {
    echo "[!] Erro ao instalar dependencias."
    echo "    Tente: pip install -r requirements.txt"
    exit 1
  }
  echo "[2/2] Dependencias instaladas."
fi

echo "[4/4] Iniciando aplicacao Flask..."
echo ""
echo "  Acesse: http://localhost:5001"
echo "  Pressione Ctrl+C para parar."
echo ""
$PYTHON "$DIR/app.py"