# Maintainer: jc_gargma <jc_gargma@iserlohn-fortress.net>
# Maintainer (Arch): Jan Alexander Steffens (heftig) <heftig@archlinux.org>
# Contributor: Aqua-sama <aqua@iserlohn-fortress.net>
# Contributor (Arch): Ionut Biru <ibiru@archlinux.org>
# Contributor (Arch): Jakub Schmidtke <sjakub@gmail.com>

# # I maintain this because:
# Arch version uses eme
# Arch version uses git
# Arch version uses python2
# Arch version uses clang
# Arch version requires signed addons
# Arch version doesn't remove system addons
# Arch version enables debug symbols
# Arch version lacks privacy and security by default

_modclang=1
_modpgo=0

pkgname=firefox
pkgver=93.0
pkgrel=1
pkgdesc="Standalone web browser from mozilla.org"
arch=(x86_64 aarch64)
license=(MPL GPL LGPL)
url="https://www.mozilla.org/firefox/"
depends=(gtk3 libxt mime-types dbus-glib ffmpeg ttf-font libpulse alsa-lib
         bzip2 libffi icu libjpeg-turbo libevent libvpx nspr nss pixman libpng sqlite libwebp zlib)
makedepends=(unzip zip diffutils yasm mesa imake inetutils xorg-server-xvfb
             autoconf2.13 rust clang llvm jack nodejs cbindgen nasm
             python-setuptools python-psutil python-zstandard lld dump_syms)
optdepends=('networkmanager: Location detection via available WiFi networks'
            'libnotify: Notification integration'
            'alsa-utils: ALSA support'
            'jack: Jack support'
            'pulseaudio: PulseAudio support'
            'speech-dispatcher: Text-to-Speech'
            'hunspell-en_CA: Spell checking, Canadian English'
            'xdg-desktop-portal: Screensharing with Wayland'
            'firefox-preferences: Custom vendor.js with security by default'
            'firefox-preferences-basic: Custom vendor.js with less breaking changes')
options=(!emptydirs !makeflags)
conflicts=(firefox-esr)
source=(
        "https://archive.mozilla.org/pub/$pkgname/releases/$pkgver/source/$pkgname-$pkgver.source.tar.xz"{,.asc}
        0001-Use-remoting-name-for-GDK-application-names.patch
        $pkgname.desktop
        identity-icons-brand.svg
        distribution.ini
        mozconfig.in.gcc
        mozconfig.in.clang
        mozconfig.common.override
        arc4_enable-lto-for-gcc.patch
        firefox-gcc-build.patch
        arc4_enable-pgo-for-gcc.patch
        pgo.patch
        arc4_remove-health-reporting.patch
        arc4_remove-system-addons.patch
        )
b2sums=('f4315a81ea5709fbf622ea39a4b259e44e8bafad95468d3f41fa8413dd1d5d92e260f549aacafe8b6af04f0c036fb9d59fe8531f0e2fa8de5dffcc403b33f2e1'
        'SKIP'
        'cfd09442eb344fb80b2233da86a101082926b9942849d988d0e43cac4cb6c15690dc8eae42514e114260b712c206cacd81f773e401cf8f861ee4b805fb872643'
        'e18f2c22e394ca3b6758bc130245b254947e4d15921be3da443d6d7c3c4b0d22ead1b39fbc10a4f896edd19e2a1dffbd1cbb34dc4beb0621a6ddb70ccc53b3a7'
        '63a8dd9d8910f9efb353bed452d8b4b2a2da435857ccee083fc0c557f8c4c1339ca593b463db320f70387a1b63f1a79e709e9d12c69520993e26d85a3d742e34'
        '877eda442eb4730600dccf209a6e961ad3122ab456bbfda4ff041e8493ebaaf96224ac218360931259ff4214482f6bf65b3a3052f977ade1a274f38ffd859535'
        'b75aa686d66fe5fe1aec0c40878183e5a367b429daddc697d9c30183ee4666d8f72bb753f5cdb4c2fd167a288358e99a8eeb7ca78149625462902180d751ab65'
        '46db9cd9c902370b174bd919d8aff4f4e37b03b4d9f91ba251eaa651abce5ad2c04f5a86d2950601c61653ef37fe84d04ad205a42f9a38211c7640c0b122717c'
        '1c7ac58af8b817067c7d79ffef8d9100f513d77f4fc1a2bce2684ff8d8d3cbc3d37b31865c7e5d873fd71d4649374bbd25ca08166d8afb25ffbd597759655063'
        '3b76cfb76a3e527d4c77d61a127606aef0b46826d7a0f7866164e0b490098714cc11429002fc35ac32b75ffbc61f76596a5e984aea37f8876bcd939030bcfa21'
        '69624493c96e98caecf5286ed77946f104feff9b61679bcc842f6d989a2b4b28acce47324f805925f55170935a37a0bc10c596b82b41391f9f8ef342c09a3d0e'
        '1250b2d4a713b241d9768dc386ecf9130d295587efd5070c2e494185436ca9d99a465b97ed80fe23ab14d6d07ecde8537a3a3d11ba843c4e3791b4df52e08f27'
        '87dd810443be6acf41dad2cbdf8b14ba6ae68d55364e80560e96200e1acb866858068234088bae261c26e65e171b49d4f530ee4098f41e5c8cf855d1f2fe0e12'
        '1dce1277c0c8b83089551057ed61c8794aa65242d0c19573dab96081f00b1042af73fbc0a40ba49dfa31eff46f4636ffd985cf8e6bd28db614a639ca6c11c74e'
        '379adf3726664668f6167eaeab35dec40342d9288ff081d22a8363f163ab0945b17ce69e7d4276a31e99e56f690afa070c410c51a5060ed835356fd216256e7b')
validpgpkeys=('14F26682D0916CDD81E37B6D61B7B526D98F0353')  # Mozilla Software Releases

prepare() {
  mkdir mozbuild
  cd ${pkgname}-${pkgver}

  # https://bugzilla.mozilla.org/show_bug.cgi?id=1530052
  patch -Np1 -i ../0001-Use-remoting-name-for-GDK-application-names.patch


  if [ "${_modclang}" == "0" ]; then
    # Apply gcc lto patches
    patch -Np1 -i ../arc4_enable-lto-for-gcc.patch
    patch -Np1 -i ../firefox-gcc-build.patch
  fi

  if [ "${_modclang}" == "0" ] && [ "${_modpgo}" == "1" ]; then
    # Apply gcc pgo patches
    patch -Np1 -i ../arc4_enable-pgo-for-gcc.patch
    patch -Np1 -i ../pgo.patch
  fi

  if [ "${_modclang}" == "1" ] && [ "${_modpgo}" == "1" ]; then
    # Add the custom mozconfig for clang pgo
    cp $srcdir/mozconfig.in.clang $srcdir/${pkgname}-${pkgver}/.mozconfig
  cat >$srcdir/${pkgname}-${pkgver}/.mozconfig - <<END
mk_add_options MOZ_OBJDIR=${PWD@Q}/obj
ac_add_options --enable-profile-generate=cross
END
  elif [ "${_modclang}" == "1" ] && [ "${_modpgo}" == "0" ]; then
    # Add the custom mozconfig for clang
    cp $srcdir/mozconfig.in.clang $srcdir/${pkgname}-${pkgver}/.mozconfig
  cat >$srcdir/${pkgname}-${pkgver}/.mozconfig - <<END
mk_add_options MOZ_OBJDIR=${PWD@Q}/obj
END
  elif [ "${_modclang}" == "0" ] &&  [ "${_modpgo}" == "1" ]; then
    # Add the custom mozconfig for gcc pgo
    cp $srcdir/mozconfig.in.gcc $srcdir/${pkgname}-${pkgver}/.mozconfig
  cat >$srcdir/${pkgname}-${pkgver}/.mozconfig - <<END
mk_add_options MOZ_OBJDIR=${PWD@Q}/obj
ac_add_options --enable-profile-generate=cross
END
  else
    # Add the custom mozconfig for gcc
    cp $srcdir/mozconfig.in.gcc $srcdir/${pkgname}-${pkgver}/.mozconfig
  fi

  # MOZ_TELEMETRY_REPORTING only applied correctly when set in this override file
  cp $srcdir/mozconfig.common.override $srcdir/${pkgname}-${pkgver}/build/mozconfig.common.override


  # Disable various components at the source level
  sed -i 's|[;]1|;0|' $srcdir/${pkgname}-${pkgver}/toolkit/components/telemetry/TelemetryStartup.manifest
  sed -i 's/;1/;0/' $srcdir/${pkgname}-${pkgver}/toolkit/components/telemetry/components.conf

  # Patch out health reporting so that MOZ_DATA_REPORTING=0 can be applied.
  patch -Np1 -i ../arc4_remove-health-reporting.patch

  # Remove @RESPATH@/browser/features/* to prevent system addons from being part of the output package.
  patch -Np1 -i ../arc4_remove-system-addons.patch


  # Hide mobile promo
#  echo ".fxaMobilePromo {  display: none !important; }" >> browser/themes/shared/incontentprefs/preferences.inc.css
  # Hide plugindeprecation-notice
  echo "#plugindeprecation-notice {  display: none !important; }" >> toolkit/mozapps/extensions/content/extensions.css
  # Hide warnings on unsigned extensions
  echo ".warning{display: none!important; } .addon[notification=warning]{background-image: none!important;}" >> toolkit/mozapps/extensions/content/extensions.css
}

build() {
  cd ${pkgname}-${pkgver}

  export MOZ_NOSPAM=1
  export MOZBUILD_STATE_PATH="$srcdir/mozbuild"
  export MACH_USE_SYSTEM_PYTHON=1

  # firefox is prone to OOM, use 1 thread per 2GB ram
  #export MOZ_MAKE_FLAGS="${MAKEFLAGS}"
  export MOZ_MAKE_FLAGS="-j16"

  # -flto breaks cargo
  # -fPIE and -pie break compiling
  export CFLAGS="$CFLAGS -O3 -fstack-protector-all -fPIC"
  export CXXFLAGS="$CXXFLAGS -O3 -fstack-protector-all -fPIC"

  # LTO needs more open files
  ulimit -n 4096


  if [ "${_modclang}" == "1" ] && [ "${_modclangpgo}" == "1" ]; then
  # clang does not support -fstack-clash-protection, so remove it
  #export CFLAGS="$(echo $CFLAGS | sed 's/ -fstack-clash-protection//' - )"
  #export CXXFLAGS="$(echo $CXXFLAGS | sed 's/ -fstack-clash-protection//' - )"

  # Do 3-tier PGO
  echo "Building instrumented browser..."
  ./mach build

  echo "Profiling instrumented browser..."
  ./mach package
  LLVM_PROFDATA=llvm-profdata \
    JARLOG_FILE="$PWD/jarlog" \
    xvfb-run -s "-screen 0 1920x1080x24 -nolisten local" \
    ./mach python build/pgo/profileserver.py

  stat -c "Profile data found (%s bytes)" merged.profdata
  test -s merged.profdata

  stat -c "Jar log found (%s bytes)" jarlog
  test -s jarlog

  echo "Removing instrumented browser..."
  ./mach clobber

  echo "Building optimized browser..."
  # Add the custom mozconfig
  cp $srcdir/mozconfig.in.clang $srcdir/${pkgname}-${pkgver}/.mozconfig
  cat >$srcdir/${pkgname}-${pkgver}/.mozconfig - <<END
mk_add_options MOZ_OBJDIR=${PWD@Q}/obj
ac_add_options --enable-lto=cross
ac_add_options --enable-profile-use=cross
ac_add_options --with-pgo-profile-path=${PWD@Q}/merged.profdata
ac_add_options --with-pgo-jarlog=${PWD@Q}/jarlog
END
  ./mach build

  elif [ "${_modclang}" == "0" ] &&  [ "${_modpgo}" == "1" ]; then

  # Do 3-tier PGO
  echo "Building instrumented browser..."
  ./mach build

  echo "Profiling instrumented browser..."
  ./mach package
  LLVM_PROFDATA=llvm-profdata \
    JARLOG_FILE="$PWD/jarlog" \
    xvfb-run -s "-screen 0 1920x1080x24 -nolisten local" \
    ./mach python build/pgo/profileserver.py

  stat -c "Profile data found (%s bytes)" merged.profdata
  test -s merged.profdata

  stat -c "Jar log found (%s bytes)" jarlog
  test -s jarlog

  echo "Removing instrumented browser..."
  ./mach clobber

  echo "Building optimized browser..."
  # Add the custom mozconfig
  cp $srcdir/mozconfig.in.gcc $srcdir/${pkgname}-${pkgver}/.mozconfig
  cat >.mozconfig - <<END
mk_add_options MOZ_OBJDIR=${PWD@Q}/obj
ac_add_options --with-pgo-profile-path=${PWD@Q}/merged.profdata
ac_add_options --with-pgo-jarlog=${PWD@Q}/jarlog
ac_add_options --enable-lto=cross
ac_add_options --enable-profile-use=cross
END
  ./mach build

  else
    echo "Building optimized browser..."
    xvfb-run -s "-screen 0 1920x1080x24 -nolisten local" ./mach build
  fi
}

package() {
  cd ${pkgname}-${pkgver}
  DESTDIR="$pkgdir" ./mach install

  # Don't install in /usr/local
  rm -rf "$pkgdir/usr/local/bin"
  mkdir "$pkgdir/usr/lib"
  mkdir "$pkgdir/usr/bin"
  cp -r --reflink "$pkgdir/usr/local/lib/firefox" "$pkgdir/usr/lib/firefox"
  rm -rf "$pkgdir/usr/local/lib/firefox"

  install -Dm644 $srcdir/distribution.ini \
  "$pkgdir/usr/lib/$pkgname/distribution/distribution.ini"

  # use a symlink in /usr/bin instead
  ln -sf "/usr/lib/$pkgname/firefox" "$pkgdir/usr/bin/firefox"


  # icons
  local i theme=official
  for i in 16 22 24 32 48 64 128 256; do
    install -Dvm644 browser/branding/$theme/default$i.png \
      "$pkgdir/usr/share/icons/hicolor/${i}x${i}/apps/$pkgname.png"
  done
  install -Dvm644 browser/branding/$theme/content/about-logo.png \
    "$pkgdir/usr/share/icons/hicolor/192x192/apps/$pkgname.png"
  install -Dvm644 browser/branding/$theme/content/about-logo@2x.png \
    "$pkgdir/usr/share/icons/hicolor/384x384/apps/$pkgname.png"
  install -Dvm644 browser/branding/$theme/content/about-logo.svg \
    "$pkgdir/usr/share/icons/hicolor/scalable/apps/$pkgname.svg"
  install -Dvm644 ../identity-icons-brand.svg \
    "$pkgdir/usr/share/icons/hicolor/symbolic/apps/$pkgname-symbolic.svg"

  # install desktop file
  install -Dvm644 ../$pkgname.desktop \
    "$pkgdir/usr/share/applications/$pkgname.desktop"

   # Use system certificates
  local nssckbi="$pkgdir/usr/lib/$pkgname/libnssckbi.so"
  if [[ -e $nssckbi ]]; then
    ln -srfv "$pkgdir/usr/lib/libnssckbi.so" "$nssckbi"
  fi
}