#!/usr/bin/env bash
setup_encryption() {

	sed -i 's/ENCRYPT/true/' group_vars/client.yml
	pass_reprompt="1"
	while [ pass_reprompt == 1 ]; do
		printf 'Please enter a passphrase to use for your backup\n Password: '
		read -s password1
		printf '\nVerify Password: '
		read -s password2
		if [ "$password1" -eq "$password2" ]; then
			pass_reprompt=0
		else
			printf 'Passwords do not match. Please try again\n'
		fi
	done

	SECRET="---\\nbackup:\\n  passphrase: '$password'\\n"
	printf '%s' "$SECRET" | tee group_vars/secret.yml

}

setup_ssh() {
	printf 'What is the IP or hostname of your remote backup?\n'
	cont=0
	while [ $cont != 1 ]; do
		read -p "IP/hostname: " address
		printf '\nIs %s correct? ' "$address"
		read -p "[y/N]: " ans
		case "$ans" in
			[yY].*) cont=1
				;;
			*) cont=0
				;;
		esac
	done
	
	cont=0
	printf 'What is the backup location?\n'
	while [ "$cont" != 1 ]; do
		read -p "Absolute path: " path
		printf '\nIs %s correct? ' "$path"
		read -p "[y/N]: " ans
		case "$ans" in
			[yY].*) cont=1
				;;
			*) cont=0
		esac
	done

	printf 's/REPO/ssh://backup@%s:%s/\n' "$address" "$path" > /tmp/backupssh.sed

	sed -i -s /tmp/backupssh.sed group_vars/client.yml
	rm /tmp/backupssh.sed

}
	

setup_remote() {
	case "$1" in
		"ssh") setup_ssh
			;;
		"local") setup_local
			;;
		*) 
			printf 'Error in setup_remote()\n'
			printf 'Case %s not understood\n' "$1"
			exit 1
			;;
	esac


setup_environment() {
	printf 'Setting up environment...\n'
	printf 'What is your backup location?\n'
	printf '0: cancel\n'
	printf '1: ssh\n'
	printf '2: local\n'
	read -p "(0-2)" ans
	case "$ans" in
		"0") printf 'Cancelling...\n' && exit
			;;
		"1") setup_remote "ssh"
			;;
		"2") setup_remote "local"
			;;
		*) printf 'Answer not understood. Please rerun this script' && exit
			;;
	esac

	read -p "Would you like to set up encryption? [y/N]" ans
	case "$ans" in
		[yY].*) setup_encryption 
			;;
		*) sed -i 's/ENCRYPT/false/' group_vars/client.yml
			;;
	esac

	printf 'Would you like to set up a "reserve" file?\n'
	printf 'This file will be an empty file 50GB in size\n'
	printf 'that you can delete to free up space should you run out.\n\n'
	printf 'This is highly recommended\n'

	read -p "Setup Reserved Space [Y/n]: " reserved
	case "$reserved" in
		[nN].*) sed -i 's/ALLOCATE/true/' group_vars/client.yml
			;;
		*) sed -i 's/ALLOCATE/false/' group_vars/client.yml
			;;
	esac



printf 'The setup will now install required packages\n'
printf 'You will be prompted for your sudo password\n'

sudo dnf install -y ansible ansible-playbook

read -p "Would you like to set up the environment files?: [Y/n]: " ans

case $ans in
	[yY].*) setup_environment
		;;
	*) printf 'No environment set up. You will need to do this manually\n'
		;;
esac