# 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

# The prepare function is executed in the root of the temp directory
# This function is used for putting downloaded files to the correct location or applying patches
prepare() {
  cd "$BPM_SOURCE"
  patch -Np1 -i "$BPM_WORKDIR"/fix-build-errors.patch
}

# The build function is executed in the source directory
# This function is used to compile the source code
build() {
  meson setup --prefix=/usr                       \
             --libdir=/usr/lib                    \
             -Dudevrulesdir=/usr/lib/udev/rules.d \
             -Dsession-managers="[]"              \
             -Dman=enabled                        \
             -Ddocs=enabled                       \
             -Djack-devel=true                    \
             -Dlibjack-path=/usr/lib              \
             -Drlimits-install=false              \
             -Dbluez5-codec-lc3plus=disabled      \
             -Dselinux=disabled                   \
             -Dsnap=disabled                      \
             build
  meson compile -C build
}

# The check function is executed in the source directory
# This function is used to run tests to verify the package has been compiled correctly
check() {
  meson test -C build
}

_pick() {
  local p="$1" f d; shift
  for f; do
    [ -d "$BPM_WORKDIR"/output_"$p" ] || { echo "Split package $p not found"; exit 1; } 
    d="$BPM_WORKDIR"/output_"$p"/"${f#$BPM_OUTPUT}"
    mkdir -p "$(dirname "$d")"
    mv "$f" "$d"
    rmdir -p --ignore-fail-on-non-empty "$(dirname "$f")"
  done
}

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

  cd "$BPM_OUTPUT"

  # Move libpipewire files into split package
  _pick libpipewire usr/include/{pipewire-*,spa-*}
  _pick libpipewire usr/lib/libpipewire*
  _pick libpipewire usr/lib/pkgconfig/{libpipewire-*,libspa-*}

  # Move jack files into split package
  _pick pipewire-jack usr/bin/pw-jack
  _pick pipewire-jack usr/include/jack
  _pick pipewire-jack usr/lib/libjack*
  _pick pipewire-jack usr/lib/pipewire-*/libpipewire-module-jack*
  _pick pipewire-jack usr/lib/spa-*/jack
  _pick pipewire-jack usr/lib/pkgconfig/jack*.pc
  _pick pipewire-jack usr/share/man/man1/pw-jack.1
  _pick pipewire-jack usr/share/man/man5/pipewire-jack.conf.5
  _pick pipewire-jack usr/share/man/man7/libpipewire-module-jack*.7
  _pick pipewire-jack usr/share/pipewire/jack.conf

  # Move pulse files into split package
  _pick pipewire-pulse usr/bin/pipewire-pulse
  _pick pipewire-pulse usr/lib/pipewire-*/libpipewire-module-{protocol-pulse.so,pulse-tunnel.so}
  _pick pipewire-pulse usr/share/man/man1/pipewire-pulse.1
  _pick pipewire-pulse usr/share/man/man5/pipewire-pulse.conf.5
  _pick pipewire-pulse usr/share/man/man7/libpipewire-module-{protocol-pulse,pulse-tunnel}.7
  _pick pipewire-pulse usr/share/man/man7/pipewire-pulse*.7
  _pick pipewire-pulse usr/share/pipewire/pipewire-pulse.conf

  # Install package license
  install -d "$BPM_OUTPUT"/usr/share/licenses/
  ln -sf libpipewire "$BPM_OUTPUT"/usr/share/licenses/pipewire
}

package_libpipewire() {
  # Install package license
  install -Dm644 "$BPM_SOURCE"/COPYING "$BPM_OUTPUT"/usr/share/licenses/libpipewire/COPYING
}

package_pipewire-jack() {
  # Install package license
  install -d "$BPM_OUTPUT"/usr/share/licenses/
  ln -sf libpipewire "$BPM_OUTPUT"/usr/share/licenses/pipewire-jack
}

package_pipewire-pulse() {
  # Install pipewire-pulse launcher config file from Void Linux
  install -Dm644 "$BPM_WORKDIR"/20-pipewire-pulse.conf "$BPM_OUTPUT"/usr/share/examples/pipewire/20-pipewire-pulse.conf

  # Install package license
  install -d "$BPM_OUTPUT"/usr/share/licenses/
  ln -sf libpipewire "$BPM_OUTPUT"/usr/share/licenses/pipewire-pulse
}