# Like `backup` in `PKGBUILD`, but supports folders – no leading and trailing slash here!
_BACKUP=('opt/lampp/etc' 'opt/lampp/htdocs' 'opt/lampp/var')

post_install() {

	echo
	echo 'XAMPP is now installed below the /opt/lampp directory.'
	echo
	echo 'To start, stop or restart XAMPP simply call the command'
	echo
	echo '    sudo xampp {start, stop, restart}'
	echo
	echo 'Alternatively you can use the `xampp` systemd service.'
	echo
	echo 'To check that everything really works just enter the following URL in your web'
	echo 'browser:'
	echo
	echo '    http://localhost'
	echo
	echo 'Have fun!'
	echo

}

pre_upgrade() {

	local _STDERR
	local _COIN

	echo -n 'Stopping lampp services...'
	_STDERR="$(/opt/lampp/lampp stop 2>&1 >/dev/null)" && echo ' OK' || {
		echo ' FAILED'
		test "x${_STDERR}" != 'x' && echo "${_STDERR}" 1>&2
	}

	for _COIN in "${_BACKUP[@]}"; do
		! test -d "/${_COIN}" || (rm -rf "/${_COIN}.keep" && mv "/${_COIN}" "/${_COIN}.keep")
	done

}

post_upgrade() {

	local _COIN
	local _HAVE_PACNEW=no

	for _COIN in "${_BACKUP[@]}"; do
		if test -d "/${_COIN}.keep"; then
			_HAVE_PACNEW=yes
			rm -rf "/${_COIN}.pacnew"
			mv "/${_COIN}" "/${_COIN}.pacnew"
			mv "/${_COIN}.keep" "/${_COIN}"
			echo "/${_COIN} has been installed as /${_COIN}.pacnew"
		fi
	done

	if test "x${_HAVE_PACNEW}" = 'xyes'; then
		echo
		echo 'One or more files have been saved as `.pacnew` files to preserve a current'
		echo 'version. To replace the preserved old version with the new version, launch:'
		echo
		echo '    sudo find -L '\''/opt/lampp/'\'' -name '\''*.pacnew'\'' | while read _fnew_; do \'
		echo '      _fold_="`echo "${_fnew_}" | sed '\''s/\.pacnew$//'\''`"; \'
		echo '      sudo rm -R "${_fold_}"; \'
		echo '      sudo mv "${_fnew_}" "${_fold_}"; \'
		echo '    done'
		echo
		echo 'If instead you want to discard the new files, launch:'
		echo
		echo '    sudo rm -r `sudo find -L '\''/opt/lampp/'\'' -name '\''*.pacnew'\''`'
		echo
	fi

}

pre_remove() {

	local _STDERR
	local _COIN
	local _DATESTAMP="$(date '+%Y-%m-%d-%H-%M-%S')"

	echo -n 'Stopping lampp services...'
	_STDERR="$(/opt/lampp/lampp stop 2>&1 >/dev/null)" && echo ' OK' || {
		echo ' FAILED'
		test "x${_STDERR}" != 'x' && echo "${_STDERR}" 1>&2
	}

	for _COIN in "${_BACKUP[@]}"; do
		rm -rf "/${_COIN}.pacnew"
	done

	if test "${#_BACKUP[@]}" -gt 0; then
		rm -rf "/opt/xampp-backups/${_DATESTAMP}"
		install -dm755 "/opt/xampp-backups/${_DATESTAMP}"
		for _COIN in "${_BACKUP[@]}"; do
			if test -d "/${_COIN}"; then
				mv "/${_COIN}" "/opt/xampp-backups/${_DATESTAMP}/" || \
					echo "ERROR: Could not create a backup of /${_COIN}" 1>&2
			fi
		done
	fi

	rm -rf '/opt/lampp/'

}

post_remove() {

	echo
	echo 'REMEMBER: Your `htdocs` folder was backed up to `/opt/xampp-backups`.'
	echo
	echo 'If you don'\''t need them, launch'
	echo
	echo '    sudo rm -r /opt/xampp-backups'
	echo
	echo 'to erase all backups.'
	echo

}