#!/bin/sh
#―――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――
# Name:
# Desc:
# Reqs:
# Date:
#―――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――

FRENCH_SUITS="♣ ♢ ♡ ♠"
FRENCH_SUIT_CARDS="A 2 3 4 5 6 7 8 9 10"
FRENCH_ADDITIONAL_CARDS="♣♚ ♣♛ ♣♝ ♠♚ ♠♛ ♠♝ ♢♔ ♢♕ ♢♗ ♡♔ ♡♕ ♡♗ 🃏 🃏"

shell_sanitize() {
	local str="$1"
	echo "$1" \
		| tr -d '$(){}`'
}


suit_cards() {
	local name="$(shell_sanitize "$1")"
	local suits=n"$(eval "echo \$${name}_SUITS")"
	local suit_cards="$(eval "echo \$${name}_SUIT_CARDS")"

	for suit in $suits; do
		for suit_card in $suit_cards; do
			printf "${suit}${suit_card} "
		done
	done

	eval "echo \$${name}_ADDITIONAL_CARDS"
}


mkdeck_dir() {
	local dir="$1"

	if test ! -d "$dir"; then
		mkdir "$dir"
	fi
	if test ! -d "$dir"; then
		1>&2 echo "Failed to create deck directory at $dir."
		exit 2
	fi
}


mkdeck_cards() {
	local dir="$1"
	local deck_name="$2"
	local cards="$(suit_cards "$deck_name")"

	if test -z "$cards"; then
		1>&2 echo "No cards found for deck $deck_name. Check your environment variables:"
		1>&2 echo "${deck_name}_SUITS, ${deck_name}_SUIT_CARDS, and ${deck_name}_ADDITIONAL_CARDS."
		exit 3
	fi

	for card in $cards; do
		touch "${dir}/${card}"
	done
}


mkdeck() {
	local dir="$1"
	local deck_name="$2"
	mkdeck_dir "$dir"
	mkdeck_cards "$dir" "$deck_name"
}


mkdeck "$1" "FRENCH"