#!/bin/sh

set -u

KOTAM_DATA_DIR=$(dirname `readlink -f "$0"`)
KOTAM_DATA_DIR=$(cd "$KOTAM_DATA_DIR/../lib" ; pwd -P)
#echo $KOTAM_DATA_DIR

KOTAM_CONFIG_DIR=$HOME/.config/kotam

 . $KOTAM_DATA_DIR/base.sh


kotam_usage() {
	echo "Usage : `basename "$0"` [options]"
}

kotam_fail(){
	printf "ERROR: $*\n\n" >&2
	kotam_usage
	exit 1
}

kotam_project_list() {
	local tmppwd=$(pwd)
	echo "List of projects :"
	cd $KOTAM_CONFIG_DIR
	find -maxdepth 1 -mindepth 1 -name '*.kotam' |sed -e 's|./|  |' -e 's/.kotam$//'
	cd $tmppwd
}

kotam_project_ensure() {
	if [ ! -e "$KOTAM_CONFIG_DIR/$PROJECT.kotam" ]; then
		kotam_fail "unknown project $PROJECT" >&2
	fi
}

kotam_project_edit() {
	kotam_project_ensure
	"$EDITOR" "$KOTAM_CONFIG_DIR/$PROJECT.kotam"
}

kotam_project_run(){
	kotam_project_ensure
	. "$KOTAM_CONFIG_DIR/$PROJECT.kotam"
}

ACTION=""
PROJECT=""

mkdir -p $KOTAM_CONFIG_DIR
while [ $# -gt 0 ]; do
	arg=${1:-}
	opt=${2:-}
	case $arg in 
		-l|--list) 
			ACTION="list"
			;;
		-e) # edit project
			shift
			if [ -z "$opt" ]; then
				kotam_fail "project name missing"
			fi
			ACTION="edit"
			PROJECT="$opt"
			;;
		-c) # create
			shift
			if [ -z "$opt" ]; then
				kotam_fail "project name missing"
			fi
			ACTION="create"
			PROJECT="$opt"
			;;
		-d) # delete
			shift
			if [ -z "$opt" ]; then
				kotam_fail "project name missing"
			fi
			ACTION="delete"
			PROJECT="$opt"
			;;
		*) #enter into project
			ACTION="run"
			PROJECT="$arg"
			;;
	esac
	shift
done

case "$ACTION" in 
	list)
		kotam_project_list
		;;
	create)
		kotam_project_create
		;;
	edit)
		kotam_project_edit
		;;
	delete)
		kotam_project_delete
		;;
	run)
		kotam_project_run
		;;
	*)
		kotam_fail "undefined action $ACTION"
		;;
esac