# Contributor: Lauren N. Liberda <lauren@selfisekai.rocks>
# Maintainer: Lauren N. Liberda <lauren@selfisekai.rocks>
pkgname=signal-desktop
pkgver=6.1.0
pkgrel=0
pkgdesc="A messaging app for simple private communication with friends"
url="https://github.com/signalapp/Signal-Desktop/"
# same as electron
# aarch64: polyval-0.5.3 crate subdep uses unstable stdsimd feature
arch="x86_64"
license="AGPL-3.0-only"
# this build system sucks massive ass and does not add needed to anything
depends="
	electron
	ffmpeg-libs
	font-barlow
	font-eb-garamond
	font-inter
	font-parisienne
	libevent
	opus
	"
makedepends="
	alsa-lib-dev
	bsd-compat-headers
	cargo
	clang-dev
	cmake
	electron-dev
	ffmpeg-dev
	git-lfs
	glib-dev
	gn
	libepoxy-dev
	libevent-dev
	lld
	llvm-dev
	mesa-dev
	nodejs
	npm
	openssl-dev
	opus-dev
	pipewire-dev
	protoc
	pulseaudio-dev
	py3-setuptools
	python3
	samurai
	sqlcipher-dev
	vips-dev
	yarn
	"
options="net !check"

# follow signal-desktop package.json -> @signalapp/libsignal-client
_libsignalver=0.21.1

# follow signal-desktop package.json -> ringrtc -> commit title
_ringrtcver=2.22.0

# follow ringrtc (on version above) -> config/version.sh -> WEBRTC_VERSION
# downloading tarball generated with abuild snapshot (with gclient dependencies fetched)
_webrtcver=5005b

source="
	https://github.com/signalapp/Signal-Desktop/archive/refs/tags/v$pkgver/Signal-Desktop-$pkgver.tar.gz
	https://github.com/signalapp/libsignal/archive/refs/tags/v$_libsignalver/libsignal-$_libsignalver.tar.gz
	https://github.com/signalapp/ringrtc/archive/refs/tags/v$_ringrtcver/ringrtc-$_ringrtcver.tar.gz
	https://s3.sakamoto.pl/lnl-aports-snapshots/webrtc-$_webrtcver.tar.xz

	bettersqlite-use-system-sqlcipher.patch
	signal-build-expire-time.patch
	signal-disable-updates.patch
	signal-update-links.patch
	webrtc-canonicalize-file-name.patch
	webrtc-use-alpine-target.patch
	webrtc-no-shared-deps-in-static-lib.patch

	signal-desktop
	signal-desktop.desktop
	"
builddir="$srcdir/Signal-Desktop-$pkgver"

export CC=clang
export CXX=clang++

# required to find the tools
export AR=llvm-ar
export NM=llvm-nm
export LD=clang++

# less log spam, reproducible, allow lto with rust
export CFLAGS="${CFLAGS/-g/} -O2 -Wno-deprecated-builtins -Wno-unknown-warning-option -Wno-builtin-macro-redefined"
export CXXFLAGS="${CXXFLAGS/-g/} -O2 -Wno-deprecated-builtins -Wno-unknown-warning-option -Wno-builtin-macro-redefined"
export CPPFLAGS="$CPPFLAGS -D__DATE__=  -D__TIME__=  -D__TIMESTAMP__="

export CARGO_PROFILE_RELEASE_OPT_LEVEL=2
export CARGO_PROFILE_RELEASE_STRIP="symbols"
export RUSTFLAGS="$RUSTFLAGS -C linker=clang -C link-arg=-fuse-ld=lld"

export YARN_CACHE_FOLDER="$srcdir/.yarn"

# webrtc only, the other dependencies are fine with tarballs
snapshot() {
	mkdir -p "$srcdir"
	cd "$srcdir"

	echo "
solutions = [{
	'name': 'src',
	'url': 'https://github.com/signalapp/webrtc.git@$_webrtcver',
}]
target_cpu = ['x64']
target_cpu_only = True
" > .gclient

	gclient sync --no-history --nohooks --tpot-cipd-ignore-platformed

	# needed DEPS hooks
	python3 'src/build/landmines.py' --landmine-scripts 'src/tools_webrtc/get_landmines.py' --src-dir 'src'
	python3 'src/build/util/lastchange.py' -o 'src/build/util/LASTCHANGE'

	for elf in $(scanelf -RA -F "%F" src); do
		rm -f "$elf"
	done

	mv src webrtc-$_webrtcver

	msg "generating tarball.."
	tar -cf webrtc-$_webrtcver.tar \
		--exclude="ChangeLog*" \
		--exclude="testdata/" \
		--exclude="test_data/" \
		--exclude="android_rust_toolchain/toolchain/" \
		--exclude-backups \
		--exclude-caches-all \
		--exclude-vcs \
		webrtc-$_webrtcver

	xz -T0 -e -9 -vv -k webrtc-$_webrtcver.tar
}

prepare() {
	ln -s "$srcdir"/webrtc-$_webrtcver "$srcdir"/ringrtc-$_ringrtcver/src/webrtc
	ln -sf "$srcdir"/ringrtc-$_ringrtcver/src "$srcdir"/webrtc-$_webrtcver/ringrtc

	msg "Applying patches"
	for x in $source; do
		case "$x" in
		signal-*.patch)
			msg "$x"
			patch -p1 -i "$srcdir"/$x -d "$srcdir"/Signal-Desktop-$pkgver
			;;
		ringrtc-*.patch)
			msg "$x"
			patch -p1 -i "$srcdir"/$x -d "$srcdir"/ringrtc-$_ringrtcver
			;;
		webrtc-*.patch)
			msg "$x"
			patch -p1 -i "$srcdir"/$x -d "$srcdir"/webrtc-$_webrtcver
			;;
		esac
	done

	msg "Installing signal-desktop JS dependencies"
	echo 'ignore-engines true' > .yarnrc
	yarn --ignore-scripts --frozen-lockfile

	(
		cd "$srcdir"/webrtc-$_webrtcver

		local use_system="
			ffmpeg
			fontconfig
			freetype
			harfbuzz-ng
			icu
			libdrm
			libevent
			libjpeg
			libpng
			libwebp
			libxml
			libxslt
			opus
			re2
			snappy
			zlib
			"
		for _lib in $use_system libjpeg_turbo; do
			msg "Removing buildscripts for system provided $_lib"
			find . -type f -path "*third_party/$_lib/*" \
				\! -path "*third_party/$_lib/chromium/*" \
				\! -path "*third_party/$_lib/google/*" \
				\! -path './base/third_party/icu/*' \
				\! -path './third_party/libxml/*' \
				\! -path './third_party/pdfium/third_party/freetype/include/pstables.h' \
				\! -path './third_party/harfbuzz-ng/utils/hb_scoped.h' \
				\! -path './third_party/crashpad/crashpad/third_party/zlib/zlib_crashpad.h' \
				\! -regex '.*\.\(gn\|gni\|isolate\|py\)' \
				-delete
		done

		msg "Replacing gn files"
		python3 build/linux/unbundle/replace_gn_files.py --system-libraries \
			$use_system

		# allow system dependencies in "official builds"
		sed -i 's/OFFICIAL_BUILD/GOOGLE_CHROME_BUILD/' \
			tools/generate_shim_headers/generate_shim_headers.py
	)

	(
		cd "$srcdir"/ringrtc-$_ringrtcver/src/node

		msg "Installing ringrtc js dependencies"
		yarn --frozen-lockfile --ignore-scripts
	)

	(
		cd "$srcdir"/libsignal-$_libsignalver/node

		# fix target
		sed -i 's/unknown-linux-gnu/alpine-linux-musl/g' binding.gyp

		msg "Installing libsignal js dependencies"
		yarn --ignore-scripts --frozen-lockfile
	)

	# remove shipped fonts for system-provided (part 1)
	rm -rf fonts/
}

build() {
	chromium_arch="$(node -e 'console.log(process.arch)')"

	# required dependency of ringrtc
	(
		cd "$srcdir"/webrtc-$_webrtcver

		local webrtc_args="
			rtc_build_examples=false
			rtc_build_tools=false
			rtc_enable_protobuf=false
			rtc_enable_sctp=false
			rtc_include_tests=false
			rtc_include_ilbc=false
			rtc_libvpx_build_vp9=true
			rtc_use_x11=false

			build_with_mozilla=false
			chrome_pgo_phase=0
			clang_use_chrome_plugins=false
			custom_toolchain=\"//build/toolchain/linux/unbundle:default\"
			is_cfi=false
			is_clang=true
			is_debug=false
			is_official_build=true
			host_toolchain=\"//build/toolchain/linux/unbundle:default\"
			proprietary_codecs=true
			rtc_link_pipewire=true
			rtc_use_pipewire=true
			symbol_level=0
			use_custom_libcxx=false
			use_sysroot=false
			use_system_freetype=true
			use_system_harfbuzz=true
			use_system_libjpeg=true
		"
		mkdir -p "$srcdir"/ringrtc-$_ringrtcver/out/release
		msg "Building signal's webrtc"
		gn gen "$srcdir"/ringrtc-$_ringrtcver/out/release --args="$(echo $webrtc_args)"
		ninja -C "$srcdir"/ringrtc-$_ringrtcver/out/release webrtc
	)

	# add lto for the remaining c steps (sqlite)
	export CFLAGS="$CFLAGS -flto"
	export CXXFLAGS="$CXXFLAGS -flto"
	export LDFLAGS="$LDFLAGS -flto -fuse-ld=lld"

	(
		cd "$srcdir"/ringrtc-$_ringrtcver/src/rust

		msg "Building libringrtc"
		OUTPUT_DIR="$srcdir"/ringrtc-$_ringrtcver/out \
			cargo build --features electron --release
		mkdir -p ../node/build/linux
		cp -fv target/release/libringrtc.so ../node/build/linux/libringrtc-$chromium_arch.node
	)

	(
		cd "$srcdir"/ringrtc-$_ringrtcver/src/node
		msg "Building ringrtc JS glue code"
		yarn build
	)

	# module on npm intentionally unbuildable: https://github.com/signalapp/libsignal/issues/464#issuecomment-1160665052
	(
		cd "$srcdir"/libsignal-$_libsignalver/node

		msg "Building libsignal"
		yarn node-gyp configure --nodedir=/usr/include/electron/node_headers --build-from-source
		yarn node-gyp build --nodedir=/usr/include/electron/node_headers --build-from-source

		mkdir -p prebuilds/linux-$chromium_arch
		mv build/Release/libsignal_client_linux_$chromium_arch.node prebuilds/linux-$chromium_arch/node.napi.node

		msg "Building libsignal glue code"
		yarn tsc
	)

	# from package.json postinstall
	yarn build:acknowledgments
	yarn patch-package
	rm -rf node_modules/dtrace-provider

	# use our libsignal
	rm -rf node_modules/@signalapp/libsignal-client/
	ln -s "$srcdir"/libsignal-$_libsignalver/node/ node_modules/@signalapp/libsignal-client

	# use our libringrtc
	rm -rf node_modules/ringrtc/
	ln -s "$srcdir"/ringrtc-$_ringrtcver/src/node/ node_modules/ringrtc

	# patch the sqlcipher module
	for x in $source; do
		case "$x" in
		bettersqlite-*.patch)
			msg "$x"
			patch -Np1 -i "$srcdir"/$x -d "$srcdir"/Signal-Desktop-$pkgver/node_modules/better-sqlite3/
			;;
		esac
	done

	# use system-provided font
	echo '' > node_modules/typeface-inter/inter.css
	rm -rf 'node_modules/typeface-inter/Inter '*

	npm rebuild sharp better-sqlite3 --nodedir=/usr/include/electron/node_headers --build-from-source

	NODE_ENV=production \
	SIGNAL_ENV=production \
	NODE_OPTIONS=--openssl-legacy-provider \
	yarn build:dev

	NODE_ENV=production \
	SIGNAL_ENV=production \
	yarn build:electron \
		--config.extraMetadata.environment=production \
		--config.directories.output=release \
		--linux=dir
}

check() {
	# tests run against downloaded build of electron for glibc, probably can be patched
	yarn test
}

package() {
	cd "$builddir"/release/linux-unpacked

	install -Dm644 resources/app.asar "$pkgdir"/usr/lib/$pkgname/app.asar
	cp -r resources/app.asar.unpacked "$pkgdir"/usr/lib/$pkgname/app.asar.unpacked

	install -Dm755 "$srcdir"/$pkgname "$pkgdir"/usr/bin/$pkgname
	install -Dm644 "$srcdir"/$pkgname.desktop "$pkgdir"/usr/share/applications/$pkgname.desktop

	for i in 16 32 48 128 250 256 1024; do
		install -Dm644 "$builddir"/images/icon_$i.png "$pkgdir"/usr/share/icons/hicolor/${i}x$i/apps/$pkgname.png
	done
}

sha512sums="
8f5234fa018e0590b3cad934ab46797bef16ff489a36a05364df7f43be80022143e8034665d2f24a171401bfac3315a16918d702a249c9ef8acd1de78e30f52e  Signal-Desktop-6.1.0.tar.gz
d2c13bf0d96eb706afe018c0ef9b377f3f50d2a82690f6ccb7260efa7cc620fb5c52ae775d598d6ebcaa581acfaab244dfe6f7f1738755604bf860cd548a62b6  libsignal-0.21.1.tar.gz
e263390ea2ae877edb39e9973a8c8a03e2f396f255ca48487311031c69493a93da0dedbce5f10adfef4859cb8e51579bf285fbd9b94f98fabd538acaee18c413  ringrtc-2.22.0.tar.gz
748f870d35b9a9789311c3d7cee9c0bc150aed8094838406e0a1969f2f824900ffec40d0b4fe2702f2f93d4a78d7987b0f91668cff859a8a34517663b138f8b5  webrtc-5005b.tar.xz
1aaf59c2d401ae127ed73981be330cd999794a217b455cb8033652063eb7b549c7070c63f54e4e60bf4338b475e162b6eae98683c3ce058e8f1a407588b3b2e1  bettersqlite-use-system-sqlcipher.patch
3ecfbd1b0cd03d1a697f3e53c057fa8bc2118de48ff0c3f07f8bb731f128f9478862a388efb36dd4dbc1dc5ad9977165a935fe65664aea915b8b80c38e801070  signal-build-expire-time.patch
60a45285d885922f5c21f64b761a10efbee9081baf3efa4c8c13abc6a43dc4d27662ed10e239b0fa2071ab9e3a0dbbb4b11d6e3d26fe2b74a19f39e72b74a5bd  signal-disable-updates.patch
c68a2a6a37c1cdea227f29c0922b9bf15259f044e9b3240b120bba14809d04d66cf0b619f52bb91abd596ad93e51e972be132b5951d0e8f6ea238fcb7bb613eb  signal-update-links.patch
252b37a2ecc5e7a25385943045f426dc2e30991b28d206ceaff1be7fd8ffeeb024310a8fca6b3e69a4b1c57db535d51c570935351053525f393682d5ecd0f9a9  webrtc-canonicalize-file-name.patch
6add8b4c293f5392748a2eec9486cb4a6534e161977c6a98de71617b9abcdd1e8ad94b44014256a4b52e33eb9dd4aca380279d4161629a1bb2d7b15f8eb5b459  webrtc-use-alpine-target.patch
bab56a33265b5b094f161af1462166e371913a5269fe8e7d12e9f65ec4f5b908157406b3bcbcf73db15d03470445127d27c64fd731b6ea57c631aba3f4d302cb  webrtc-no-shared-deps-in-static-lib.patch
87534e7b5ad7365509eab75629e6bd1a9ed61ee92f7e358405a0abaf0df57de14623fb3894eb082f8785422e5c087e1c50f9e2e5cafbb2529591fd7bf447f7f5  signal-desktop
87ef5f3ffcf64e3cae308aa0f6bc208fb05dd8568f6a288217cdf8498ae1523f276987a7be8d6f5208f13394bab350e08734d806a8e7c08849dd8ba0dda49d66  signal-desktop.desktop
"