#!/usr/bin/env sh
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# shellcheck shell=ash
trap 'exit_code=$?; [ $exit_code -ne 0 ] && echo "Error on line ${LINENO} of ${0}" >/dev/stderr; exit $exit_code' EXIT;
set -o errexit -o nounset -o pipefail;

#----------------------------------------
importFunctions() {
	local script scriptdir
	script="$(realpath "$0")"
	scriptdir="$(dirname "$script")"
	TP_DIR='' TC_DIR=''
	TP_DIR="$(dirname "$scriptdir")"
	TC_DIR="$(dirname "$TP_DIR")"
	export TP_DIR TC_DIR
	functions_sh="$TC_DIR/build/functions.sh"
	if [ ! -r "$functions_sh" ]; then
		echo "error: can't find $functions_sh"
		return 1
	fi
	. "$functions_sh"
}


# ---------------------------------------
initBuildArea() {
	echo "Initializing the build area."
	(mkdir -p "$RPMBUILD"
	 cd "$RPMBUILD"
	 mkdir -p SPECS SOURCES RPMS SRPMS BUILD BUILDROOT) || { echo "Could not create $RPMBUILD: $?"; return 1; }

	# tar/gzip the source
	local tp_dest
	tp_dest="$(createSourceDir traffic_portal)"
	cd "$TP_DIR" || \
		 { echo "Could not cd to $TP_DIR: $?"; return 1; }
	rsync -av ./ "$tp_dest"/ || \
		 { echo "Could not copy to $to_dest: $?"; return 1; }
	cp -r "$TP_DIR"/ "$tp_dest" || { echo "Could not copy $TP_DIR to $tp_dest: $?"; return 1; }

	# include LICENSE in the tarball
	cp "${TC_DIR}/LICENSE" "$tp_dest"

	tar -czvf "$tp_dest".tgz -C "$RPMBUILD"/SOURCES "$(basename "$tp_dest")" || { echo "Could not create tar archive ${tp_dest}.tgz: $?"; return 1; }
	cp "$TP_DIR"/build/*.spec "$RPMBUILD"/SPECS/. || { echo "Could not copy spec files: $?"; return 1; }

	echo "The build area has been initialized."
}

# ---------------------------------------

importFunctions
checkEnvironment -i npm,grunt,rsync,sass
initBuildArea
buildRpm traffic_portal