#!/usr/bin/make -f

export DEB_BUILD_MAINT_OPTIONS = hardening=+all optimize=-lto

include /usr/share/dpkg/architecture.mk
include /usr/share/dpkg/buildflags.mk

# gtk3 build -> 4.1 API packages
# gtk4 build -> 6.0 API packages
ENABLE_GTK3=YES
ENABLE_GTK4=YES
# YES => build libwebkit2gtk-4.0-doc, libjavascriptcoregtk-4.0-bin and webkit2gtk-driver (for trixie)
BUILD_TRANSITIONAL_PKGS=NO

EXTRA_DH_ARGUMENTS =
EXTRA_CMAKE_ARGUMENTS = -DPORT=GTK \
	   -DCMAKE_INSTALL_LIBEXECDIR=lib/$(DEB_HOST_MULTIARCH) \
	   -DCMAKE_C_FLAGS_RELEASE="" \
	   -DCMAKE_C_FLAGS_DEBUG="" \
	   -DCMAKE_CXX_FLAGS_RELEASE="" \
	   -DCMAKE_CXX_FLAGS_DEBUG="" \
	   -DCMAKE_BUILD_WITH_INSTALL_RPATH=ON \
	   -DUSE_LIBBACKTRACE=OFF \
	   -DENABLE_MINIBROWSER=ON
DH_GENCONTROL_ARGS =

ifneq ($(filter amd64 arm64 armel armhf i386 mips64el ppc64el riscv64 s390x hppa loong64 powerpc ppc64 sh4,$(DEB_HOST_ARCH)),)
EXTRA_CMAKE_ARGUMENTS += -DUSE_SYSPROF_CAPTURE=ON
else
EXTRA_CMAKE_ARGUMENTS += -DUSE_SYSPROF_CAPTURE=OFF
endif

# Skia strongly recommends using clang
# https://skia.org/docs/user/build/#supported-and-preferred-compilers
ifneq (,$(filter $(DEB_HOST_ARCH),amd64 arm64 armel armhf i386 ppc64el riscv64 s390x))
	EXTRA_CMAKE_ARGUMENTS += \
	   -DCMAKE_C_COMPILER=clang \
	   -DCMAKE_CXX_COMPILER=clang++
endif

# GCC 15 fails in mips64el with an internal compiler error.
# (Clang also fails with "failed to perform tail call elimination").
# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1116217
ifneq (,$(filter $(DEB_HOST_ARCH),mips64el))
	EXTRA_CMAKE_ARGUMENTS += \
	   -DCMAKE_C_COMPILER=gcc-14 \
	   -DCMAKE_CXX_COMPILER=g++-14
endif

# The WebKit build scripts look at the CPU to detect the architecture.
# This is a problem if we e.g. build for i386 on an amd64 machine.
# Forcing a 32-bit build solves this.
ifeq ($(DEB_HOST_ARCH_BITS),32)
	EXTRA_CMAKE_ARGUMENTS += -DFORCE_32BIT=ON
endif

# Sacrifice speed in order to make it more likely resource limits
# won't be hit.
ifeq ($(DEB_BUILD_ARCH_BITS),32)
	LDFLAGS += -Wl,--no-keep-memory
endif

# The debug packages produced by webkit are huge and cause problems in
# most buildds. Use -g1 in all architectures to make them smaller.
CFLAGS := $(CFLAGS:-g=-g1)
CXXFLAGS := $(CXXFLAGS:-g=-g1)

# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=949621
LDFLAGS += -Wl,--reduce-memory-overheads

# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1104703
ifneq (,$(filter $(DEB_HOST_ARCH),arm64))
	CFLAGS := $(patsubst -mbranch-protection=%,-mbranch-protection=pac-ret,$(CFLAGS))
	CXXFLAGS := $(patsubst -mbranch-protection=%,-mbranch-protection=pac-ret,$(CXXFLAGS))
endif

# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1101547
ifneq (,$(filter $(DEB_HOST_ARCH),alpha))
	CPPFLAGS += -mlarge-data -mlarge-text
endif

ifneq (,$(filter noopt,$(DEB_BUILD_OPTIONS)))
	EXTRA_CMAKE_ARGUMENTS += -DUSE_SYSTEM_MALLOC=ON
	CPPFLAGS += -DRELEASE_WITHOUT_OPTIMIZATIONS
endif

ifeq (,$(filter %-doc,$(shell dh_listpackages)))
	EXTRA_CMAKE_ARGUMENTS += -DENABLE_DOCUMENTATION=OFF
else ifneq (,$(filter nodoc,$(DEB_BUILD_OPTIONS)))
	EXTRA_CMAKE_ARGUMENTS += -DENABLE_DOCUMENTATION=OFF
else
	EXTRA_CMAKE_ARGUMENTS += -DENABLE_DOCUMENTATION=ON
endif

ifneq (,$(filter debug,$(DEB_BUILD_OPTIONS)))
	EXTRA_CMAKE_ARGUMENTS += -DCMAKE_BUILD_TYPE=Debug
else
	EXTRA_CMAKE_ARGUMENTS += -DCMAKE_BUILD_TYPE=Release
	CPPFLAGS += -DNDEBUG -DG_DISABLE_CAST_CHECKS
endif

# libmanette is no longer available in Ubuntu i386.
# Let's disable it completely (also in Debian) to simplify maintenance.
ifneq (,$(filter $(DEB_HOST_ARCH),i386))
	EXTRA_CMAKE_ARGUMENTS += -DENABLE_GAMEPAD=OFF
endif

# Don't recommend xdg portals on Ubuntu i386 where it doesn't exist
ifeq ($(shell dpkg-vendor --is Ubuntu && echo yes) $(DEB_HOST_ARCH), yes i386)
	EXTRA_CMAKE_ARGUMENTS += -DENABLE_BUBBLEWRAP_SANDBOX=ON
	DH_GENCONTROL_ARGS += -Vbwrap:Depends="bubblewrap (>= 0.3.1), xdg-dbus-proxy"
# Disable the bubblewrap sandbox if libseccomp-dev is not available
else ifeq ($(shell pkg-config --exists libseccomp && echo yes),yes)
	EXTRA_CMAKE_ARGUMENTS += -DENABLE_BUBBLEWRAP_SANDBOX=ON
	DH_GENCONTROL_ARGS += -Vbwrap:Depends="bubblewrap (>= 0.3.1), xdg-dbus-proxy"
	DH_GENCONTROL_ARGS += -Vbwrap:Recommends="xdg-desktop-portal-gtk"
else
	EXTRA_CMAKE_ARGUMENTS += -DENABLE_BUBBLEWRAP_SANDBOX=OFF
endif

# set the distributor agent for Ubuntu
ifeq ($(shell dpkg-vendor --derives-from Ubuntu && echo yes),yes)
	EXTRA_CMAKE_ARGUMENTS += -DUSER_AGENT_BRANDING="Ubuntu"
endif

# libavif is not in Ubuntu main
ifeq ($(shell dpkg-vendor --derives-from Ubuntu && echo yes),yes)
	EXTRA_CMAKE_ARGUMENTS += -DUSE_AVIF=OFF
endif

# gstreamer1.0-libav and gstreamer1.0-plugins-bad are not in Ubuntu "main"
ifeq ($(shell dpkg-vendor --derives-from Ubuntu && echo yes),yes)
	DH_GENCONTROL_ARGS += -Vgst:Suggests="gstreamer1.0-libav, gstreamer1.0-plugins-bad"
else
	DH_GENCONTROL_ARGS += -Vgst:Recommends="gstreamer1.0-libav, gstreamer1.0-plugins-bad"
endif

# flite (speech) and libmanette (gamepad) are not in Ubuntu main LP: #2096940 LP: #1918446
ifeq ($(shell dpkg-vendor --derives-from Ubuntu && echo yes),yes)
	EXTRA_CMAKE_ARGUMENTS += -DENABLE_SPEECH_SYNTHESIS=OFF -DENABLE_GAMEPAD=OFF
endif

# This is loaded at runtime using libepoxy so add an explicit dependency (#1033230)
ifneq (,$(filter $(DEB_HOST_ARCH),arm64 armel armhf))
	DH_GENCONTROL_ARGS += -Vgles:Depends="libgles2"
endif

# Disable commands and binary packages of the builds that we don't want
ifneq ($(ENABLE_GTK3),YES)
	GTK3_BUILD = @:
	EXTRA_DH_ARGUMENTS += -Nlibjavascriptcoregtk-bin
else
	GTK3_BUILD_DEP=libgtk-3-dev,gir1.2-gtk-3.0-dev,
endif
ifneq ($(ENABLE_GTK4),YES)
	GTK4_BUILD = @:
	EXTRA_DH_ARGUMENTS += -Nlibwebkitgtk-doc
else
	GTK4_BUILD_DEP=libgtk-4-dev,gir1.2-gtk-4.0-dev,
endif

# Decide what version of the WebKit WebDriver to build
ENABLE_WEBDRIVER_GTK3 = -DENABLE_WEBDRIVER=OFF
ENABLE_WEBDRIVER_GTK4 = -DENABLE_WEBDRIVER=OFF
ifeq ($(ENABLE_GTK3),YES)
	ENABLE_WEBDRIVER_GTK3 = -DENABLE_WEBDRIVER=ON
	WEBDRIVER_DEP_PKG = libwebkit2gtk-4.1-0
else
	ENABLE_WEBDRIVER_GTK4 = -DENABLE_WEBDRIVER=ON
	WEBDRIVER_DEP_PKG = libwebkitgtk-6.0-4
endif

# The debhelper files for the gtk3 and gtk4 builds are almost
# identical so we generate the latter from the former.
WEBKIT_DH_FILES = \
	gir1.2-javascriptcoregtk-4.1.install \
	gir1.2-webkit2-4.1.install \
	libjavascriptcoregtk-4.1-0.install \
	libjavascriptcoregtk-4.1-dev.install \
	libwebkit2gtk-4.1-0.docs \
	libwebkit2gtk-4.1-0.install \
	libwebkit2gtk-4.1-0.symbols \
	libwebkit2gtk-4.1-dev.install

# This converts debhelper file contents to the gtk4 versions
WEBKIT_DH_CONVERT_GTK4 = sed -e '/usr\/include\/webkitgtk-4.1\/webkit2/d' \
			     -e '/usr\/include\/webkitgtk-4.1\/webkitdom/d' \
			     -e '/usr\/include\/webkitgtk-4.1\/JavaScriptCore/d' \
			     -e 's/webkit2gtk-web-extension/webkitgtk-web-process-extension/' \
			     -e 's/WebKit2WebExtension/WebKitWebProcessExtension/' \
			     -e 's/webkit2webextension/webkitwebprocessextension/' \
			     -e 's/4\.1-0/6.0-4/g' \
			     -e 's/4\.1\.so\.0/6.0.so.4/g' \
			     -e 's/4\.1/6.0/g' \
			     -e 's/webkit2/webkit/g' \
			     -e 's/WebKit2/WebKit/g' \
			     -e '/gtk3-only/s/^ /\#/' \
			     -e '/gtk4-only/s/^\#/ /'

# This converts debhelper file names to the gtk4 versions
WEBKIT_DH_RENAME_GTK4 = sed -e 's/libwebkit2gtk-4.1-0/libwebkitgtk-6.0-4/' \
			    -e 's/libjavascriptcoregtk-4.1-0/libjavascriptcoregtk-6.0-1/' \
			    -e 's/webkit2/webkit/g' \
			    -e 's/4\.1/6.0/g'

%:
	dh $@ --with gir --buildsystem=cmake+ninja $(EXTRA_DH_ARGUMENTS)

debian/control: debian/control.in debian/control-common.in debian/control-transitional.in debian/rules
	echo '# This file is autogenerated. DO NOT EDIT' > debian/control
	cat debian/control.in | \
		sed -e 's/@EXTRA_BUILD_DEPS@/$(GTK3_BUILD_DEP)$(GTK4_BUILD_DEP)/' \
		    -e 's/@WEBDRIVER_DEP_PKG@/$(WEBDRIVER_DEP_PKG)/' \
		>> debian/control
ifeq ($(BUILD_TRANSITIONAL_PKGS),YES)
	cat debian/control-transitional.in >> debian/control
endif
	$(GTK3_BUILD) cat debian/control-common.in | \
		sed -e 's/@WK_API_VERSION@/4.1/g' \
		    -e 's/@LIBJSC_PKG@/libjavascriptcoregtk-4.1-0/g' \
		    -e 's/@WEBKIT@/webkit2/g' \
		    -e 's/@LIBWEBKITGTK_PKG@/libwebkit2gtk-4.1-0/g' \
		    -e 's/@GTK_VERSION@/3/g' \
		>> debian/control
	$(GTK4_BUILD) cat debian/control-common.in | \
		sed -e 's/@WK_API_VERSION@/6.0/g' \
		    -e 's/@LIBJSC_PKG@/libjavascriptcoregtk-6.0-1/g' \
		    -e 's/@WEBKIT@/webkit/g' \
		    -e 's/@LIBWEBKITGTK_PKG@/libwebkitgtk-6.0-4/g' \
		    -e 's/@GTK_VERSION@/4/g' \
		>> debian/control
	sed -i '$${/^$$/d}' debian/control # Remove last empty line

override_dh_gencontrol:
	dh_gencontrol -- $(DH_GENCONTROL_ARGS)

override_dh_auto_configure:
	echo debian/clean > debian/clean
	if [ "$(ENABLE_GTK4)" = "YES" ]; then \
		for src in $(WEBKIT_DH_FILES); do \
			dst=`echo $$src | $(WEBKIT_DH_RENAME_GTK4)` ; \
			$(WEBKIT_DH_CONVERT_GTK4) debian/$$src > debian/$$dst ; \
			echo debian/$$dst >> debian/clean ; \
		done ; \
	fi
	$(GTK3_BUILD) dh_auto_configure -Bbuild-gtk3 -- \
		$(EXTRA_CMAKE_ARGUMENTS) -DUSE_GTK4=OFF \
		$(ENABLE_WEBDRIVER_GTK3) -DENABLE_DOCUMENTATION=OFF
	$(GTK4_BUILD) dh_auto_configure -Bbuild-gtk4 -- \
		$(EXTRA_CMAKE_ARGUMENTS) \
		$(ENABLE_WEBDRIVER_GTK4)

override_dh_auto_build:
	$(GTK3_BUILD) dh_auto_build -Bbuild-gtk3
	$(GTK4_BUILD) dh_auto_build -Bbuild-gtk4

override_dh_auto_install:
	$(GTK3_BUILD) dh_auto_install -Bbuild-gtk3
	$(GTK4_BUILD) dh_auto_install -Bbuild-gtk4

override_dh_auto_clean: debian/control
	$(GTK3_BUILD) dh_auto_clean -Bbuild-gtk3
	$(GTK4_BUILD) dh_auto_clean -Bbuild-gtk4
	find Source Tools -type f -name "*.pyc" -exec rm {} \;
	find Source Tools -depth -type d -name __pycache__ -exec rmdir {} \;

# Create a dummy doc directory in case the "nodoc" build option is set.
override_dh_install-indep:
	mkdir -p debian/tmp/usr/share/doc/webkitgtk-6.0
	touch debian/tmp/usr/share/doc/webkitgtk-6.0/index.html
	dh_install -i
ifneq (,$(filter libwebkitgtk-doc,$(shell dh_listpackages)))
	jdupes -rl debian/libwebkitgtk-doc/usr
endif

override_dh_makeshlibs:
	$(GTK3_BUILD) dh_makeshlibs -plibwebkit2gtk-4.1-0 -Xinjected-bundle
	$(GTK3_BUILD) dh_makeshlibs -plibjavascriptcoregtk-4.1-0 -VNone
	$(GTK4_BUILD) dh_makeshlibs -plibwebkitgtk-6.0-4 -Xinjected-bundle
	$(GTK4_BUILD) dh_makeshlibs -plibjavascriptcoregtk-6.0-1 -VNone

override_dh_auto_test:

override_dh_dwz: