#!/bin/sh
set -e  # Exit on error

echo "=== atBB Container Starting ==="

# Start nginx
echo "Starting nginx..."
nginx
sleep 1

# Read nginx PID from PID file
if [ ! -f /tmp/nginx.pid ]; then
  echo "ERROR: nginx failed to start (no PID file)"
  exit 1
fi
NGINX_PID=$(cat /tmp/nginx.pid)

# Verify nginx is running
if ! kill -0 $NGINX_PID 2>/dev/null; then
  echo "ERROR: nginx failed to start (process not running)"
  exit 1
fi
echo "nginx started (PID: $NGINX_PID)"

# Start appview (background)
echo "Starting appview..."
cd /app/apps/appview
NODE_ENV=production node dist/index.js &
APPVIEW_PID=$!
sleep 2

# Verify appview started
if ! kill -0 $APPVIEW_PID 2>/dev/null; then
  echo "ERROR: appview failed to start"
  kill $NGINX_PID 2>/dev/null || true
  exit 1
fi
echo "appview started (PID: $APPVIEW_PID)"

# Start web (background)
echo "Starting web..."
cd /app/apps/web
NODE_ENV=production node dist/index.js &
WEB_PID=$!
sleep 2

# Verify web started
if ! kill -0 $WEB_PID 2>/dev/null; then
  echo "ERROR: web failed to start"
  kill $NGINX_PID $APPVIEW_PID 2>/dev/null || true
  exit 1
fi
echo "web started (PID: $WEB_PID)"
echo "=== All services started, container ready ==="

# Cleanup function for graceful shutdown
cleanup() {
  echo "Received shutdown signal, stopping services..."
  kill $NGINX_PID $APPVIEW_PID $WEB_PID 2>/dev/null || true
  wait $NGINX_PID $APPVIEW_PID $WEB_PID 2>/dev/null || true
  exit 0
}

# Setup signal handling
trap cleanup TERM INT

# Monitor processes - exit if any critical service crashes
while true; do
  if ! kill -0 $NGINX_PID 2>/dev/null; then
    echo "ERROR: nginx crashed, shutting down container"
    cleanup
  fi
  if ! kill -0 $APPVIEW_PID 2>/dev/null; then
    echo "ERROR: appview crashed, shutting down container"
    cleanup
  fi
  if ! kill -0 $WEB_PID 2>/dev/null; then
    echo "ERROR: web crashed, shutting down container"
    cleanup
  fi
  sleep 5
done