#!/bin/bash


echo "---------------------------------------------------------------------------------------------------"
echo "| Maded Changes in application-code/app-tier/DbConfig.js and in this file for database connection |"
echo "---------------------------------------------------------------------------------------------------"

read -p "yes/no: " ans

if [[ "$ans" == "no" ]]; then
 echo 
 echo "Great then modify above mentioned files"
elif [[ "$ans" == "yes" ]]; then
 echo && echo 
 echo "-------------------------------------------"
 echo "|         Installing MySQL Server         |"
 echo "-------------------------------------------"

 sudo apt update -y
 sudo apt install mysql-server -y


 echo "-------------------------------------------"
 echo "|      Running Database Setup Script      |"
 echo "-------------------------------------------"
 mysql -h <Database Hostname> -u <Admin User> -p < db_setup.sql


 echo "-------------------------------------------"
 echo "|            Installing Nodejs            |"
 echo "-------------------------------------------"

 curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.38.0/install.sh | bash
 source ~/.bashrc
 source ~/.nvm/nvm.sh
 nvm install 16 && nvm use 16
 npm install -g pm2   


 echo "-------------------------------------------"
 echo "|           Starting Application          |"
 echo "-------------------------------------------"

 cd application-code/app-tier
 npm install
 pm2 start index.js
 startup_as_process=$(pm2 startup | grep -o 'sudo env.*')
 eval "$startup_as_process"
 pm2 save


 echo "-------------------------------------------"
 echo "|           Testing Application          |"
 echo "-------------------------------------------"

 echo "| http://localhost:4000/health check endpoint for application health |"
 curl http://localhost:4000/health
 echo "Check if above matches: 'This is the health check'"


 echo "| http://localhost:4000/transaction check point for database health |"
 curl http://localhost:4000/transaction
 echo && echo 
 echo "---------------------------------------------------------------------------"
 echo "|           Now you can Create Image out of this Virtual machine          |"
 echo "---------------------------------------------------------------------------"

else
 echo 
 echo "Enter Valid Answer"
fi