#!/usr/bin/env bash

function _goto_install_error()
{
	echo "$@" >&2
}

	# sudo-check
	if [ $EUID -ne 0 ]; then
		_goto_install_error 'Please run this script in sudo mode or as root user'
		exit
	fi
	
	GOTO_FILE_LOCATION='/usr/local/share/goto.bash'
	RC=""
	if [ -f ~/.bashrc ]; then
		RC="$HOME/.bashrc"
	elif [ -f ~/.cshrc ]; then
		RC="$HOME/.cshrc"
	elif [ -f ~/.kshrc ]; then
		RC="$HOME/.kshrc"
	elif [ -f ~/.zshrc ]; then
		RC="$HOME/.zshrc"
	fi
	
	cp ./goto.bash "$GOTO_FILE_LOCATION"
	
	if [ -n "$RC" ]; then
		# Append source to RC startup file if not already there
		if [ `grep -c "source $GOTO_FILE_LOCATION" "$RC"` == "0" ]; then
			# Append source to RC file
			echo -e "\n#Source goto\nsource $GOTO_FILE_LOCATION\n" >> "$RC"
		fi
		source "$GOTO_FILE_LOCATION"
	else
		_goto_install_error "Error sourcing goto in your startup file.."
		_goto_install_error "E.g ~/.bashrc ~/.cshrc etc.."
	fi