# LECA Bash library
#
# The LECA bash library provides a set of function used for helping
# development of bash script mainly to write job script on the luke
# cluster
#
# The files from the LECA Bash library must be sourced from your main script
#
#


if [[ -z "${LECALIB_UTIL_SH}" ]]; then
	LECALIB_UTIL_SH=1
	LECABASHLIB_RELOADING=0
	
	if [[ -z "$LECABASHLIB_PATH" ]] ; then
		export LECABASHLIB_PATH=""
	fi

	THIS_DIR="$(dirname ${BASH_SOURCE[0]})"

    source "${THIS_DIR}/lecabashlib.sh"

	function abspath() {
		local P=$1
		echo "$(cd "$(dirname "${P}")" && pwd -P)/$(basename "${P}")"
	}

	LECALIB_DIR=$(abspath "${THIS_DIR}")

	function upper() {
		echo $1 | tr "a-z" "A-Z"
	}

	function lower() {
		echo $1 | tr "A-Z" "a-z"
	}

	function indirect() {
		eval echo \$${1}
	}

    function include() {
		local MODULE=$(upper $1)
		local LOADED_MODULE_VAR="LECALIB_${MODULE}_SH"
		local LOADED_MODULE=$(indirect $LOADED_MODULE_VAR)
		local found=""
		
		for path in $(echo $LECABASHLIB_PATH | sed 's/:/ /g') ; do
			if [[ -z "$found" && \
			      ( -z "${LOADED_MODULE}" || \
			       "$LECABASHLIB_RELOADING" == 1 ) && \
			       -f "${path}/${1}.sh" ]] ; then
				source "${path}/${1}.sh"
				eval $LOADED_MODULE_VAR=1
				found=1
			fi
		done
		if [[ -z "$found" && \
			      ( -z "${LOADED_MODULE}" || \
			       "$LECABASHLIB_RELOADING" == 1 ) && \
			       -f "${LECALIB_DIR}/${1}.sh" ]] ; then
			source "${LECALIB_DIR}/${1}.sh"
			eval $LOADED_MODULE_VAR=1
			found=1
		fi

		if (( found == 1 )) ; then
			if (( LECABASHLIB_RELOADING == 1 )) ; then
				logdebug "Module $1 reloaded..."
		    else
				logdebug "Module $1 loaded..."
			fi
	    else
	    		if [[ -z "${LOADED_MODULE}" ]] ; then
	    			logerror "Cannot load module $1"
	    		fi
		fi
	}

	function reload() {
		LECABASHLIB_RELOADING=1
		include "${1}"
		LECABASHLIB_RELOADING=0
	}


	function onluke() {
		[[ $(hostname) =~ ^luke[0-9]* ]]
	}

	function onfroggy() {
		[[ $(hostname) =~ ^frog ]]
	}
	
	function pushd () {
    	command pushd "$@" > /dev/null
	}

	function popd () {
    	command popd "$@" > /dev/null
	}
	
	include logging

fi