#!/bin/sh

PREFIX=
. $PREFIX/lib/libalpine.sh

MAPDIR="$ROOT/usr/share/bkeymaps"

if [ -f "$ROOT/etc/conf.d/keymap" ]; then
	. "$ROOT/etc/conf.d/keymap"
	variant=$(basename $KEYMAP .bmap.gz)
fi


show_keymaps() {
	local opwd="$PWD"
	cd "$ROOT/usr/share/bkeymaps"
	ls --color=never
	cd "$opwd"
}

select_layout() {
	while true; do
		if [ -z "$layout" ]; then
			layout=none
		fi
		echo "Available keyboard layouts:"
		show_keymaps
		echon "Select keyboard layout [$layout]: "
		default_read layout "$layout"
		if [ "$layout" = "abort" ] || [ "$layout" = "none" ] ; then
			goodbye 0
		elif [ -d "$MAPDIR/$layout" ] ; then
			return 0
		fi
	done
}

setup_mapfile() {
	local name=$(basename $1)
	local conf="$ROOT/etc/conf.d/keymap"
	mkdir -p "$ROOT/etc/keymap"
	mkdir -p "$ROOT/etc/conf.d/"
	if gzip -9 -c "$1" > "$ROOT/etc/keymap/$name.gz" ; then
		[ -f "$conf" ] && sed -i '/^KEYMAP=/d' "$conf"
		echo "KEYMAP=/etc/keymap/$name.gz" >> "$conf"
		# we actually load the keymap now
		zcat /etc/keymap/$name.gz | loadkmap
		rc_add -s 20 keymap
		goodbye 0
	fi
}

select_variant() {
	while true; do
		echon "Available variants: "
		for i in $(ls $MAPDIR/$layout) ; do
			echon "$(basename $i .bmap) "
		done
		echo ""
		if [ ! -f "$MAPDIR/$layout/$variant.bmap" ] ; then
			variant=""
		fi
		echon "Select variant [$variant]: "
		default_read variant "$variant"
		if [ "$variant" = "abort" ] || [ "$variant" = "none" ]; then
			break;
		fi
		if [ -f "$MAPDIR/$layout/$variant.bmap" ]; then
			setup_mapfile "$MAPDIR/$layout/$variant.bmap"
		fi
	done	
}

goodbye() {
	if [ $was_installed -ne 0 ]; then
		pkg_deinst bkeymaps
	fi
	exit $1
}

apk_info -e bkeymaps
was_installed=$?

pkg_inst bkeymaps

deflayout="$1"
while true; do

	if [ -n "$deflayout" ]; then
		layout="$deflayout"
		unset deflayout
	else
		select_layout
	fi

	# if there is only one variant, just pick it
	count=$(ls $MAPDIR/$layout | wc -l)
	if [ $count -eq 1 ]; then
		setup_mapfile "$MAPDIR/$layout/$(ls $MAPDIR/$layout)"
		continue
	fi

	select_variant
done