#!/bin/bash

HAMSTER=/usr/bin/hamster
IFS=$'\n'

function readVariable {
	unset "$1"
	while [ -z "${!1}" ]; do
		read -p "$2 name: " "$1"

		if [ -z "${!1}" ]; then
			read -p "Abort?" -n 1 -r ABORT
			echo

			if [[ $ABORT =~ ^[yY]$ ]]; then
				exit 0
			fi
		fi
	done
}

CATEGORIES=($($HAMSTER categories && echo '$NEW$'))

PS3="Category: "
select CATEGORY in "${CATEGORIES[@]}"; do
	case $CATEGORY in
		'')
			echo "Select a number between 1 and ${#CATEGORIES[@]}"
			;;
		'$NEW$')
			readVariable CATEGORY Category

			readVariable ACTIVITY Activity

			break
			;;
		*)
			ACTIVITIES=($($HAMSTER activities | grep $CATEGORY | cut -d'@' -f1 && echo '$NEW$'))

			PS3='Activity: '
			select ACTIVITY in "${ACTIVITIES[@]}"; do
				case $ACTIVITY in
					'')
						echo "Select a number between 1 and ${#ACTIVITIES[@]}"
						;;
					'$NEW$')
						readVariable ACTIVITY Activity

						break
						;;
					*)
						break
				esac
			done
			break
			;;
	esac
done

IFS=' '
read -p "Tag names: " -a TAGS

if [ ! -z "$TAGS" ]; then
	TAGS=$(printf "#%s" "${TAGS[@]}")
fi

$HAMSTER track "$ACTIVITY@$CATEGORY$TAGS"