# 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://github.com/SuperTux/supertux/releases/download/v${BPM_PKG_VERSION}/SuperTux-v${BPM_PKG_VERSION}-Source.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"

  cd "$BPM_SOURCE"
  sed -i '/cmake_minimum_require/s/[(].*[)]/(VERSION 3.30)/' external/*/CMakeLists.txt
  # Fix compiler errors
  patch -Np1 -i "$BPM_WORKDIR"/gcc-12.patch
  patch -Np1 -i "$BPM_WORKDIR"/gcc-14.patch
  # Fix boost library not found errors
  patch -Np1 -i "$BPM_WORKDIR"/no-boost.patch
}

# The build function is executed in the source directory
# This function is used to compile the source code
build() {
  mkdir build
  cd build
  
  cmake -DCMAKE_INSTALL_PREFIX=/usr -DENABLE_DISCORD=ON -DINSTALL_SUBDIR_BIN=bin -DCMAKE_POLICY_VERSION_MINIMUM=3.5 ..
  cmake --build .
}

# The package function is executed in the source directory
# This function is used to move the compiled files into the output directory
package() {
  cd build

  DESTDIR="$BPM_OUTPUT" cmake --install .

  # Install package license
  install -Dm644 "$BPM_SOURCE"/LICENSE.txt "$BPM_OUTPUT"/usr/share/licenses/supertux/LICENSE.txt
}