#!/bin/bash

function print_help {
	echo "Please input a mainnet-persistence WITHOUT the .tar.gz extension (eg: mainnet-istana-830788)"
	echo "If you need to add access to the mainnet s3 persistence, add the following canonical id:"
	aws s3api list-buckets --query Owner.ID --output text
	echo "to the persistence on mainnet s3, then run the command again"
	echo
	echo
	echo
}

if [ $# -eq 0 ]; then
	print_help
else
	echo "pwd is :$(pwd)"
	echo "Checking if download directory exists"
	if [ ! -d "$(pwd)/downloads" ]; then
		echo "Directory does not exist!, creating a downloads folder"
		mkdir -p "$(pwd)/downloads"
	fi
	echo "Persistence to be used: $1"
	echo "Attempting to copy persistence"
	if [ -f "$(pwd)/downloads/$1.tar.gz" ]; then
		echo "$1.tar.gz exists, skipping download."
	else
		if aws s3 cp "s3://$BUCKET_ID/persistence/$1.tar.gz" "$(pwd)/downloads/"; then
			echo "Copy successful!"
		else
			print_help
			exit
		fi
	fi
fi