# --- T2-COPYRIGHT-BEGIN ---
# t2/package/*/chromium/chromium.conf
# Copyright (C) 2023 - 2025 The T2 SDE Project
# SPDX-License-Identifier: GPL-2.0
# --- T2-COPYRIGHT-END ---

runmake=0
prefix=opt/chromium

CC=${CC/gcc/clang} CXX=${CXX/g++/clang++}
CLANG_VERSION=$($CC --version | sed -n 's/.*version \([0-9]\+\)\..*/\1/p')
CLANG_INCLUDE_PATH="-I$(pkgprefix libdir clang)/clang/${CLANG_VERSION}/include"

var_append GCC_WRAPPER_APPEND ' ' -I$(pkgprefix includedir libx11)

[ "$arch" = arm64 ] && var_remove GCC_WRAPPER_REMOVE ' ' "-march*"

export RUSTC_BOOTSTRAP=1

chromium_flags="
	blink_enable_generated_code_formatting=false
	build_dawn_tests=false
	chrome_pgo_phase=0
	clang_base_path=\"/$(pkgprefix clang)\"
	clang_use_chrome_plugins=false
	clang_version=\"${CLANG_VERSION}\"
	custom_toolchain=\"//build/toolchain/linux/unbundle:default\"
	disable_fieldtrial_testing_config=true
	enable_freetype=true
	enable_nacl=false
	enable_nocompile_tests=false
	enable_pseudolocales=false
	enable_reading_list=false
	enable_remoting=false
	enable_reporting=false
	enable_vr=false
	enable_widevine=false
	ffmpeg_branding=\"Chrome\"
	host_toolchain=\"//build/toolchain/linux/unbundle:default\"
	icu_use_data_file=false
	is_asan=false
	is_cfi=false
	is_debug=false
	is_official_build=true
	link_pulseaudio=true
	media_use_ffmpeg=true
	media_use_libvpx=true
	media_use_openh264=true
	proprietary_codecs=true
	rtc_build_json=false
	rtc_build_libsrtp=true
	rtc_build_libvpx=true
	rtc_build_opus=false
	rtc_build_ssl=true
	rtc_link_pipewire=false
	rtc_use_h264=false
	rtc_use_pipewire=false
	rust_bindgen_root=\"/$(pkgprefix rust-bindgen)\"
	rust_sysroot_absolute=\"/$(pkgprefix rustc)\"
	rustc_version=\"T2\"
	safe_browsing_use_unrar=false
	symbol_level=0
	treat_warnings_as_errors=false
	use_custom_libcxx=true
	use_official_google_api_keys=false
	use_pulseaudio=true
	use_qt5=false
	use_sysroot=false
	use_system_libffi=true
	use_thin_lto=false
	use_unofficial_version_number=false
	use_vaapi=true
"

system_libs=""
pkginstalled brotli && var_append system_libs ' ' brotli
pkginstalled dav1d && var_append system_libs ' ' dav1d
pkginstalled flac && var_append system_libs ' ' flac
pkginstalled fontconfig && var_append system_libs ' ' fontconfig
pkginstalled freetype && var_append system_libs ' ' freetype
pkginstalled libdrm && var_append system_libs ' ' libdrm
pkginstalled libjpeg && var_append system_libs ' ' libjpeg
pkginstalled libopus && var_append system_libs ' ' opus
pkginstalled libopus && var_append patchfiles ' ' $confdir/hotfix-system-opus.diff
pkginstalled libpng && var_append system_libs ' ' libpng
pkginstalled libsecret && var_append system_libs ' ' libsecret
pkginstalled libusb && var_append system_libs ' ' libusb
pkginstalled libwebp && var_append system_libs ' ' libwebp
pkginstalled libxml && var_append system_libs ' ' libxml
pkginstalled libxslt && var_append system_libs ' ' libxslt
pkginstalled openh264 && var_append system_libs ' ' openh264
pkginstalled unrar && var_append system_libs ' ' unrar
pkginstalled zstd && var_append system_libs ' ' zstd

chromium_premake() {
	echo "Unpacking test data"
	tar xJf $archdir/chromium-*testdata.tar.xz -C ..
	tar xzf $archdir/test_fonts*.tar.gz -C third_party/test_fonts/test_fonts

	for x in $system_libs; do
		echo "Removing buildscripts for system provided $x"
		x="${x/swiftshader-/swiftshader/third_party/}"
			find . -type f -path "*third_party/$x/*" \
			\! -path "*third_party/$x/chromium/*" \
			\! -path "*third_party/$x/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

	echo "Replacing gn files"
	var_remove system_libs ' ' unrar
	build/linux/unbundle/replace_gn_files.py --system-libraries $system_libs

	mkdir -p third_party/node/linux/node-linux-x64/bin
	ln -sf /usr/bin/node third_party/node/linux/node-linux-x64/bin/
	
	# allow system libs in official build
	sed -i 's/OFFICIAL_BUILD/GOOGLE_CHROME_BUILD/' \
		tools/generate_shim_headers/generate_shim_headers.py

	sed -i "s|T2_CLANG_INCLUDE_PATH|$CLANG_INCLUDE_PATH|" build/config/compiler/BUILD.gn

	# hack to force using the shim header files of tensorflow-text
	rm -Rf ./third_party/tflite/src/tensorflow/core/lib/core

	gn gen out/bld --args="$(echo $chromium_flags)"
}
hook_add premake 1 chromium_premake

chromium_inmake() {
	ninja -C out/bld chrome
}
hook_add inmake 1 chromium_inmake

chromium_postmake() {
	cd ./out/bld
	mkdir -p $root/$prefix/bin
	mkdir -p $root/$prefix/lib
	
	install chrome -t $root/$prefix/lib
	install chrome_crashpad_handler -t $root/$prefix/lib
	install v8_context_snapshot.bin -t $root/$prefix/lib
	install xdg-mime -t $root/$prefix/lib
	install xdg-settings -t $root/$prefix/lib
	install libvulkan.so.1 -t $root/$prefix/lib
	install libEGL.so -t $root/$prefix/lib
	install libGLESv2.so -t $root/$prefix/lib
	
	ln -sfv ../lib/chrome $root/$prefix/bin/chromium-browser
	ln -sfv $root/$prefix/bin/chromium-browser $root/usr/bin/chromium

	for pak in *.pak; do
		install "$pak" -t $root/$prefix/lib
	done
	
	mkdir -p $root/$prefix/lib/locales
	for pak in locales/*.pak; do
		install "$pak" -t $root/$prefix/lib/locales
	done

	for json in *.json; do
		install "$json" -t $root/$prefix/lib
	done
}
hook_add postmake 1 chromium_postmake