#!/bin/bash
##########################################################################
# Shellscript		:	Reinstall macOS 
# Autor				:	Andreas Vogel, NEXT Enterprise gmbh, 2021
##########################################################################
set -x
##################### Variables ##########################################
Installer=$(find /Applications -type d -name 'Install macOS*')
jamfHelper="/Library/Application Support/JAMF/bin/jamfHelper.app/Contents/MacOS/jamfHelper"
jamf="/usr/local/bin/jamf"
Icon="/System/Library/CoreServices/CoreTypes.bundle/Contents/Resources/AlertStopIcon.icns"

Message="When continuing, the entire system will be deleted and with it all stored data on the device.
The device can then be rolled back into the management system. 
If data is not yet saved, please cancel the process and save the data. 
If you click OK, the process can no longer be canceled. 
Follow the instructions from the confluence for re-installation. 
"

#################### Execution ##########################################
HELPER=$("$jamfHelper" -windowType utility -icon "$Icon" -title "Clean reinstallation macOS" -description "$Message" -button1 "OK" -button2 "Cancel" -cancelButton "2" -defaultButton 2)
echo "Jamf Helper Exit Code: $HELPER"

if [ "$HELPER" == "0" ]
	then
		if [ -d "$Installer" ]
			then
				rm -rf "$Installer"
				softwareupdate --fetch-full-installer
				Installer=$(find /Applications -type d -name 'Install macOS*')
				"$Installer"/Contents/Resources/startosinstall --eraseinstall --newvolumename "Macintosh HD" --agreetolicense	
			else
				softwareupdate --fetch-full-installer
				Installer=$(find /Applications -type d -name 'Install macOS*')
				"$Installer"/Contents/Resources/startosinstall --eraseinstall --newvolumename "Macintosh HD" --agreetolicense
		fi
	else
		exit 0
fi