bash-libs/import.sh

declare LIB_PATH=$( dirname $( readlink -f ${BASH_SOURCE[0]} ) )

########################
# Function: dep_exists
# Usage: You provide it a utility name and it checks to see if it can find an
#        executable of the same name in path
function dep_exists () {
	local DEP_UTIL=${1:?"$FUNCNAME: No dep utility was provided for search"}
	for path in ${PATH//:/ }; do
		if [[ -x $path/$DEP_UTIL ]]; then
			return 0
		fi
	done

	# The above is just more bash friendly since it can be error handled better
	## OR
	# find ${PATH//:/ } -name $DEP_UTIL -executable | grep $DEP_UTIL
	# return $?

	echo "$FUNCNAME: $DEP_UTIL is not installed, or is not in path"
	return 1
}

####################
# Function: import
# Usage: You provide the script/lib name that you want to import from the LIB_PATH
function import () {
	local LIB_NAME=${1:?"$FUNCNAME: No lib provided for import"}
	## Fixing lib_name in case user/dev provides a non *.sh ending script (as all should have extension)
	if [[ ${LIB_NAME##*.} != 'sh' ]]; then
		LIB_NAME=${LIB_NAME}.sh
	fi

	# Creating REGEX pattern to match if lib has already been sourced
	local SOURCED_LIBS_REGEX="($( IFS='|'; echo "${BASH_SOURCE[*]}" ))"
	if [[ $LIB_NAME =~ ^$SOURCED_LIBS_REGEX$ ]]; then
		echo "$FUNCNAME: This lib ($LIB_NAME) has already been sourced"
		return 0
	fi

	## Getting FULL PATH for convinence
	FULLPATH=$LIB_PATH/$LIB_NAME

	if [[ -f $FULLPATH ]]; then
		. $FULLPATH
	else
		echo "$FUNCNAME: $LIB_NAME ($FULLPATH) does not exist or is not accessible by you."
		exit
	fi
}