#!/bin/sh
CHOSEN_PLATFORM=$1
# Check if a parameter was passed
if [ -z $CHOSEN_PLATFORM ]
then
	echo "No chosen platform was passed. Please enter iOS, Android or Web as platforms"
	exit 1
fi

#Check for valid platforms
if [ $CHOSEN_PLATFORM != "iOS" ] && [ $CHOSEN_PLATFORM != "Android" ] && [ $CHOSEN_PLATFORM != "Web" ]
then
	echo "Unknown Platform. Please enter iOS, Android or Web as platforms"
	exit 1
fi

#Detect current platform by inspecting the current available Libraries
if [ -d "Library_iOS" ]
then
	if [ -d "Library_Android" ]
	then
		CURRENT_PLATFORM="Web"
	else
		CURRENT_PLATFORM="Android"
	fi
else
	CURRENT_PLATFORM="iOS"
fi

echo "Current platform is $CURRENT_PLATFORM"

#Swap libraries accordingly
if [ $CURRENT_PLATFORM = $CHOSEN_PLATFORM ]
then
	echo "You are already on $CURRENT_PLATFORM"
else
	echo "Changed platform to $CHOSEN_PLATFORM"
	mv "Library" "Library_$CURRENT_PLATFORM"
	mv "Library_$CHOSEN_PLATFORM" "Library"
fi