#!/bin/bash

if [ "$(uname -m)" == "x86_64" ]
then PHARO_URL=get.pharo.org/64/
else PHARO_URL=get.pharo.org
fi

CACHE_FILE=clean-env.tgz

while [[ $# -gt 0 ]]
do
	case "$1" in
		--fresh)
			echo "Cleaning Cache"
			rm -f "$CACHE_FILE"
			;;
		--clean)
			DOWNLOAD=NO
			;;
		*)
			# unknown option
			;;
	esac
	shift # past argument or value
done

# Clean Environment
echo "Cleaning Environment"
find . -maxdepth 1 -not \( -name "." -o -name "$CACHE_FILE" -o -name "$(basename "$0")" -o -name "startup.st" -o -name "user-properties" \) -exec rm -rf {} \;

if [ "$DOWNLOAD" != "NO" ]
then
	if [ -f "$CACHE_FILE" ]
	then
		echo "Restoring from Cache"
		tar zxf "$CACHE_FILE"
	else
		echo "Downloading Pharo from $PHARO_URL"
		if which curl > /dev/null
		then curl "${PHARO_URL}" | bash
		else wget -O - -q "${PHARO_URL}" | bash
		fi

		echo "Saving downloaded files to Cache"
		tar zcf "$CACHE_FILE" --exclude="$CACHE_FILE" --exclude="$(basename "$0")" --exclude="startup.st" --exclude="user-properties" ./*
	fi
fi