{ stdenv
, lib
, mkXPlaneAddon
}:

mkXPlaneAddon {
  pname = "x-world-vegetation";
  version = "1.0";
  fname = "simHeaven_X-World_Vegetation_Library.7z";
  sha256 = "sha256-NxiLAmnz2YHrc/MyGfExEzCdl/yvURNSWMGcIQ8Csnw=";
  forumlink = "https://simheaven.com/simdownloads/x-world-vegetation-library/";
  buildCommand = ''
    mkdir -p "$out/Custom Scenery/"
    7z x $src
    cp -r simHeaven* "$out/Custom Scenery"
  '';

  passthru = let
    dirName="simHeaven_X-World_Vegetation_Library";
    addonPath = "$XPLANEPATH/Custom Scenery/${dirName}";
  in {
    build = ''
      ln -s $ADDONPATH $out/xplane-extra/x-world-vegetation
    '';
    prepare = ''
      mkdir -p "${addonPath}"
      for f in "/xplane-extra/x-world-vegetation/Custom Scenery/${dirName}/"* ; do
        ln -s "$f" "${addonPath}/$(basename "$f")"
      done
      ln -s "$XPLANEPATH/Resources/default scenery/1200 forests" "${addonPath}/1200 forests"

      (
        cd "$XPLANEPATH"
        if grep -q -E 'Custom Scenery/yOrtho4XP_Overlays' 'Custom Scenery/scenery_packs.ini' ; then
          sed -i -e '/^SCENERY_PACK Custom Scenery\/${dirName}\/$/d' 'Custom Scenery/scenery_packs.ini'
          sed -i -e "/^SCENERY_PACK Custom Scenery\/yOrtho4XP_Overlays/i\
      SCENERY_PACK Custom Scenery\/${dirName}/" 'Custom Scenery/scenery_packs.ini'
        else
          sed -i -e '/^SCENERY_PACK Custom Scenery\/${dirName}\/$/d' 'Custom Scenery/scenery_packs.ini'
          sed -i -e '$a\
      SCENERY_PACK Custom Scenery\/${dirName}/' 'Custom Scenery/scenery_packs.ini'
        fi
      )
    '';
    revert = ''
      if [ -d "${addonPath}" ]; then
        rm -r "${addonPath}"
      else
        false
      fi
    '';
  };
}