# This is the source.sh script. It is executed by BPM in a temporary directory when compiling a source package
# BPM Expects the source code to be extracted into the automatically created 'source' directory which can be accessed using $BPM_SOURCE
# BPM Expects the output files to be present in the automatically created 'output' directory which can be accessed using $BPM_OUTPUT

DOWNLOAD="https://gitlab.gnome.org/GNOME/gtk/-/archive/${BPM_PKG_VERSION}/gtk-${BPM_PKG_VERSION}.tar.gz"
FILENAME="${DOWNLOAD##*/}"

# The prepare function is executed in the root of the temp directory
# This function is used for downloading files and putting them into the correct location
prepare() {
  wget "$DOWNLOAD"
  tar -xvf "$FILENAME" --strip-components=1 -C "$BPM_SOURCE"
}

# The build function is executed in the source directory
# This function is used to compile the source code
build() {
  mkdir build
  cd build

  meson setup --prefix=/usr           \
              --buildtype=release     \
              -Dbroadway-backend=true \
              -Dintrospection=enabled \
              -Dvulkan=enabled        \
              -Dwrap_mode=nodownload ..
  meson compile
}

# The package function is executed in the source directory
# This function is used to move the compiled files into the output directory
package_gtk4() {
  cd build
  
  meson install --destdir="$BPM_OUTPUT"

  # Move gtk-update-icon-cache to temporary directory for gtk-update-icon-cache package
  mkdir "$BPM_WORKDIR"/output-gtk-update-icon-cache
  install -d "$BPM_WORKDIR"/output-gtk-update-icon-cache/usr/{bin,share/man/man1}
  mv "$BPM_OUTPUT"/usr/bin/gtk4-update-icon-cache -t "$BPM_WORKDIR"/output-gtk-update-icon-cache/usr/bin/

  # Install BPM hook and script
  install -Dm644 "$BPM_WORKDIR"/gtk4-querymodules.bpmhook "$BPM_OUTPUT"/var/lib/bpm/hooks/gtk4-querymodules.bpmhook
  install -Dm755 "$BPM_WORKDIR"/gtk4-querymodules.sh "$BPM_OUTPUT"/var/lib/bpm/hook-scripts/gtk4-querymodules.sh

  install -Dm644 "$BPM_SOURCE"/COPYING "$BPM_OUTPUT"/usr/share/licenses/gtk3/COPYING
}

package_gtk-update-icon-cache() {
  # Replace 'output' directory with 'output-gtk-update-icon-cache'
  rmdir "$BPM_OUTPUT"
  mv "$BPM_WORKDIR"/output-gtk-update-icon-cache "$BPM_OUTPUT"

  # Symlink 'gtk-update-icon-cache' to 'gtk4-update-icon-cache'
  ln -s gtk4-update-icon-cache "$BPM_OUTPUT"/usr/bin/gtk-update-icon-cache

  # Install BPM hook and script
  install -Dm644 "$BPM_WORKDIR"/gtk-update-icon-cache.bpmhook "$BPM_OUTPUT"/var/lib/bpm/hooks/gtk-update-icon-cache.bpmhook
  install -Dm755 "$BPM_WORKDIR"/gtk-update-icon-cache.sh "$BPM_OUTPUT"/var/lib/bpm/hook-scripts/gtk-update-icon-cache.sh
  
  # Install package license
  install -Dm644 "$BPM_SOURCE"/COPYING "$BPM_OUTPUT"/usr/share/licenses/gtk-update-icon-cache/COPYING
}