#!/usr/bin/env bash
# ------------------------------------------------------------------
#
# autohint.sh
# Copyright 2016 Christopher Simpkins
# MIT license
# Modified by Ryan L McIntyre
# for Nerd Fonts (https://github.com/ryanoasis/nerd-fonts)
# Nerd Fonts Version: 2.2.1
# Script Version: 1.1.1
#
# ------------------------------------------------------------------

# DESCRIPTION
# Applies hints to the Hack ttf font builds with ttfautohint
# Executable: ttfautohint (http://www.freetype.org/ttfautohint/doc/ttfautohint.html)

fontfile=$1

echo "[Nerd Fonts] Autohinting Hack '$fontfile'"

command -v ttfautohint >/dev/null 2>&1 || {
	echo "[Nerd Fonts] 'ttfautohint' is required (not installed). Aborting." >&2; exit 1;
}

nerdfonts_hack_scripts_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

# ttfautohint - Input and output file names must not be identical
cp "$fontfile" "${fontfile}.tmp"

if [[ "$fontfile" == *"Regular"* ]]
then
	echo "[Nerd Fonts] Hinting Hack Regular"
	ttfautohint -l 6 -r 50 -x 10 -H 181 -D latn -f latn -w G -W -t -X "" -I -m "${nerdfonts_hack_scripts_dir}/Hack-Regular-TA.txt" "${fontfile}.tmp" "$fontfile"
elif [[ "$fontfile" == *"Bold"* ]]
then
	echo "[Nerd Fonts] Hinting Hack Bold"
	ttfautohint -l 6 -r 50 -x 10 -H 260 -D latn -f latn -w G -W -t -X "" -I -m "${nerdfonts_hack_scripts_dir}/Hack-Bold-TA.txt" "${fontfile}.tmp" "$fontfile"
elif [[ "$fontfile" == *"Italic"* ]]
then
	echo "[Nerd Fonts] Hinting Hack Italic"
	ttfautohint -l 6 -r 50 -x 10 -H 145 -D latn -f latn -w G -W -t -X "" -I -m "${nerdfonts_hack_scripts_dir}/Hack-Italic-TA.txt" "${fontfile}.tmp" "$fontfile"
elif [[ "$fontfile" == *"BoldItalic"* ]]
then
	echo "[Nerd Fonts] Hinting Hack Bold Italic"
	ttfautohint -l 6 -r 50 -x 10 -H 265 -D latn -f latn -w G -W -t -X "" -I -m "${nerdfonts_hack_scripts_dir}/Hack-BoldItalic-TA.txt" "${fontfile}.tmp" "$fontfile"
else
    echo "[Nerd Fonts] Could not find any Hack fonts to hint..."
fi

# clean-up
rm "${fontfile}.tmp"

echo "[Nerd Fonts] Completed Autohinting Hack '$fontfile'"

exit 0