#!/bin/bash

#Enumerate memorization items
for item in `cut -f 1 "$1"`; do
	front+=($item)
done

#Enuerate answers
for item in `cut -f 2 "$1" | sed -e 's: :_:g'`; do
	back+=($item)
done

#Generate random flash card order
order=$(shuf -e $(seq 0 $(expr ${#front[@]} \- 1)))

flashcards(){
for card in ${order[@]}; do
		whiptail --msgbox "Unmemorized ${#repeat[@]} \n\n ${front[$card]} |" --ok-button "Show" 15 60
		whiptail --yesno "Unmemorized ${#repeat[@]} \n\n ${front[$card]} | ${back[$card]}" --yes-button "Know" --no-button "Don't know" 15 60
		#Catalogue unmemorized cards
		if [[ $? = 1 ]]; then
			repeat+=($card)
		fi
done
#Load unmemorized cards back into deck and repeat
if [[ "${#repeat[@]}" > 0 ]]; then
	order="${repeat[@]}"
	unset repeat
	flashcards
else
	exit 0
fi
}

flashcards

exit 0