#!/bin/bash

INSTANCE_ID=$(aws ec2 describe-instances \
  --filters "Name=instance-state-name,Values=running" \
  --query "Reservations[-1].Instances[-1].InstanceId" \
  --output text)

if [ "$INSTANCE_ID" == "None" ] || [ -z "$INSTANCE_ID" ]; then
  echo "No running EC2 instances found to stop."
  exit 1
fi

echo "Stopping EC2 instance: $INSTANCE_ID..."
aws ec2 stop-instances --instance-ids "$INSTANCE_ID"

echo "Waiting for the instance to stop..."
aws ec2 wait instance-stopped --instance-ids "$INSTANCE_ID"

echo "EC2 instance $INSTANCE_ID has been stopped."