start.sh

#!/usr/bin/env bash

CLEANED_UP=false

cleanup() {
  if [ "$CLEANED_UP" = true ]; then return; fi
  CLEANED_UP=true

  red "⚠️ Cleaning up services..."
  kill "$TAIL_REACT" "$TAIL_EXPRESS" "$TAIL_FASTAPI" 2>/dev/null
  kill "$REACT_PID" "$EXPRESS_PID" "$FASTAPI_PID" 2>/dev/null
  exit 1
}

trap cleanup INT TERM EXIT

# === Utility for colored messages ===
green() { printf '\033[1;32m%s\033[0m\n' "$1"; }
red()   { printf '\033[1;31m%s\033[0m\n' "$1"; }

echo "🧹 Clearing previous logs..."
: > react.log && : > express.log && : > fastapi.log

# === Free ports (5173, 3000, 8000) ===
command -v lsof >/dev/null 2>&1 || {
  red "❌ lsof is not installed. Please install it to continue."
  exit 1
}

for port in 5173 3000 8000; do
  pid=$(lsof -ti :$port 2>/dev/null || pkill -f ":$port")
  if [ -n "$pid" ]; then
    red "🛑 Port $port in use (PID $pid). Killing..."
    kill -9 $pid
  else
    green "✅ Port $port is free."
  fi
done

echo "🔄 Starting all services with live logs..."

# === Start React (Vite) ===
(cd Clients && npm run dev >> ../react.log 2>&1) &
REACT_PID=$!
green "▶️ React (Vite) → http://localhost:5173"

# === Start Express ===
(cd Servers && npm run watch >> ../express.log 2>&1) &
EXPRESS_PID=$!
green "▶️ Express → http://localhost:3000"

# === Start FastAPI ===
(cd BiasAndFairnessServers/src && source .venv/bin/activate && uvicorn app:app --reload --port 8000  >> ../fastapi.log 2>&1) &
FASTAPI_PID=$!
green "▶️ FastAPI → http://localhost:8000"

# === Small delay before showing logs ===
sleep 2
echo ""
green "📺 Showing live logs (press Ctrl+C to stop)..."
echo "─────────────── REACT ───────────────"
tail -n 20 -f react.log &
TAIL_REACT=$!
echo "────────────── EXPRESS ─────────────"
tail -n 20 -f express.log &
TAIL_EXPRESS=$!
echo "────────────── FASTAPI ─────────────"
tail -n 20 -f fastapi.log &
TAIL_FASTAPI=$!

# Wait for any process to exit
wait -n $REACT_PID $EXPRESS_PID $FASTAPI_PID

# If any service exits, stop tails and others
cleanup