#!/usr/bin/env bash
# ================================================================
# FinBot — Full Stack Startup Script
# Starts both the FastAPI backend and Next.js frontend together.
# ================================================================

set -e
ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

echo ""
echo "╔══════════════════════════════════════════════════════════╗"
echo "║          IRIS IR Intelligence System — Startup           ║"
echo "║       Emirates NBD · Local Demo                         ║"
echo "╚══════════════════════════════════════════════════════════╝"
echo ""

# ── Backend ─────────────────────────────────────────────────────
echo "▶  Starting FastAPI backend (port 8000)…"
cd "$ROOT_DIR/backend"

if [ ! -d ".venv" ]; then
  echo "   Creating Python virtual environment…"
  python3 -m venv .venv
fi

source .venv/bin/activate
PYTHON="$ROOT_DIR/backend/.venv/bin/python"

echo "   Installing backend dependencies…"
  "$PYTHON" -m pip install -q -r requirements.txt

echo "   Launching uvicorn…"
export PYTORCH_MPS_HIGH_WATERMARK_RATIO=0.0
"$PYTHON" -m uvicorn app.main:app --host 0.0.0.0 --port 8000 --reload &
BACKEND_PID=$!

# ── Wait for backend ─────────────────────────────────────────────
echo "   Waiting for backend…"
for i in {1..15}; do
  if curl -sf http://localhost:8000/api/health > /dev/null 2>&1; then
    echo "   ✅  Backend ready at http://localhost:8000"
    break
  fi
  sleep 1
done

# ── Frontend ─────────────────────────────────────────────────────
echo ""
echo "▶  Starting Next.js frontend (port 3000)…"
cd "$ROOT_DIR"
npm run dev &
FRONTEND_PID=$!

echo ""
echo "══════════════════════════════════════════════════════════"
echo "  IRIS running:"
echo "  Frontend  →  http://localhost:3000"
echo "  Backend   →  http://localhost:8000"
echo "  API docs  →  http://localhost:8000/api/docs"
echo ""
echo "  Press Ctrl+C to stop both servers."
echo "══════════════════════════════════════════════════════════"

# Cleanup on exit
trap "echo ''; echo 'Stopping…'; kill $BACKEND_PID $FRONTEND_PID 2>/dev/null; exit" INT TERM

wait