# Copyright 2020-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

PYTHON_COMPAT=( python3_{11..14} )
inherit meson python-any-r1 verify-sig

DESCRIPTION="Simple library for font loading and glyph rasterization"
HOMEPAGE="https://codeberg.org/dnkl/fcft"
SRC_URI="
	https://codeberg.org/dnkl/${PN}/releases/download/${PV}/${P}.tar.gz
	verify-sig? ( https://codeberg.org/dnkl/${PN}/releases/download/${PV}/${P}.tar.gz.sig )
"

# MIT for fcft
# ZLIB for nanosvg
LICENSE="MIT ZLIB"
SLOT="0"
KEYWORDS="~amd64 ~arm64 ~ppc64 ~riscv ~x86"
IUSE="examples +harfbuzz +libutf8proc test"
REQUIRED_USE="
	libutf8proc? ( harfbuzz )
	examples? ( libutf8proc )
"
RESTRICT="!test? ( test )"

RDEPEND="
	media-libs/fontconfig
	media-libs/freetype
	x11-libs/pixman
	examples? (
		dev-libs/libutf8proc:=
		dev-libs/wayland
	)
	harfbuzz? ( media-libs/harfbuzz:=[truetype] )
	libutf8proc? ( dev-libs/libutf8proc:=[-cjk] )
"
DEPEND="
	${RDEPEND}
	dev-libs/tllist
	examples? ( dev-libs/wayland-protocols )
	test? ( dev-libs/check )
"
BDEPEND="
	${PYTHON_DEPS}
	app-i18n/unicode-data
	app-text/scdoc
	virtual/pkgconfig
	examples? ( dev-util/wayland-scanner )
	verify-sig? ( sec-keys/openpgp-keys-dnkl )
"

VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/dnkl.asc

src_prepare() {
	default

	rm -r unicode || die "Failed removing vendored unicode-data"

	sed -i "s;unicode/UnicodeData.txt;${EPREFIX}/usr/share/unicode-data/UnicodeData.txt;" \
		meson.build || die "Failed changing UnicodeData.txt to system's copy"
	sed -i "s;unicode/emoji-data.txt;${EPREFIX}/usr/share/unicode-data/emoji/emoji-data.txt;" \
		meson.build || die "Failed changing emoji-data.txt to system's copy"
}

src_configure() {
	local emesonargs=(
		$(meson_feature harfbuzz grapheme-shaping)
		$(meson_feature libutf8proc run-shaping)
		$(meson_use examples)
		$(use test && meson_use harfbuzz test-text-shaping)
		# bundled, tiny, I believe this means we should always include it
		-Dsvg-backend=nanosvg
		-Ddocs=enabled

		# since 3.3.3, the lib assumes lack of support for COLRv1 and returns an
		# error with. test-text-shaping needs an emoji font w/o COLRv1 or it
		# fails. noto-emoji (Noto-COLRv1.ttf) previously used no longer passes
		# the test, media-fonts/twemoji::guru does it.
		# https://codeberg.org/dnkl/fcft/pulls/115
		-Dtest-text-shaping=false
	)

	meson_src_configure
}

src_install() {
	local DOCS=( CHANGELOG.md README.md )
	meson_src_install

	rm -r "${ED}"/usr/share/doc/${PN} || die

	use examples && newbin "${BUILD_DIR}/example/example" fcft-example
}