# This CPACK_PRE_BUILD_SCRIPTS script is used to copy all required Qt and other 3rd party libraries (SDR drivers and codecs) in to the .app bundle
# It is run in a staging area (${CPACK_TEMPORARY_INSTALL_DIRECTORY}/SDRangel.app) after all targets have been installed (E.g. sdrangel exe and plugins)
# The copying of frameworks and libraries is mostly done by 'macdeployqt', however, in order for 'macdeployqt' to copy libraries built by external/CMakeLists.txt,
# we first need to add RPATHs into the libraries giving the locations of any libraries they might depend on. 
# These paths are in the variable MACOS_EXTERNAL_LIBS_FIXUP set in externals/CMakeLists.txt
# Is there an easier way to this?

# Copy executable that will be run when icon in /Applications is clicked
message ("Copying default executable to SDRangel.app/Contents/MacOS/SDRangel")
execute_process (COMMAND mkdir ${CPACK_TEMPORARY_INSTALL_DIRECTORY}/SDRangel.app/Contents/MacOS/)
execute_process (COMMAND cp /opt/build/sdrangel/build/sdrangel ${CPACK_TEMPORARY_INSTALL_DIRECTORY}/SDRangel.app/Contents/MacOS/SDRangel)


# Add RPATHS to libraries so macdeployqt can find out and copy all dependencies
message ("Adding RPATHs to executables and libraries")

# Get list of 3rd party library directories
set (EXTERNAL_LIB_DIRS  @MACOS_EXTERNAL_LIBS_FIXUP@)
list (REMOVE_DUPLICATES EXTERNAL_LIB_DIRS)

# Add RPATH to exectuable in staging area
foreach(RPATH_DIR ${EXTERNAL_LIB_DIRS})
  message("Add RPATH ${RPATH_DIR}")
  execute_process(COMMAND /usr/bin/install_name_tool -add_rpath ${RPATH_DIR} ${CPACK_TEMPORARY_INSTALL_DIRECTORY}/SDRangel.app/Contents/MacOS/SDRangel)
endforeach()

# Add RPATH to libraries in build directory
foreach(RPATH_DIR_1 ${EXTERNAL_LIB_DIRS})
  file(GLOB LIBS_TO_FIX  ${RPATH_DIR_1}/*.dylib)
  foreach (LIB_TO_FIX ${LIBS_TO_FIX})
      foreach(RPATH_DIR @MACOS_EXTERNAL_LIBS_FIXUP@)
          message("Add RPATH ${RPATH_DIR} to ${LIB_TO_FIX}")
          # We set ERROR_QUIET to ignore errors regarding failing to add duplicate paths
          execute_process(COMMAND /usr/bin/install_name_tool -add_rpath ${RPATH_DIR} ${LIB_TO_FIX} ERROR_QUIET)
      endforeach()
   endforeach()
endforeach()

# Run macdeployqt which should copy all libraries and frameworks and Qt plugins and qml
message ("Running macdeployqt in ${CPACK_TEMPORARY_INSTALL_DIRECTORY}")
execute_process ( COMMAND macdeployqt ${CPACK_TEMPORARY_INSTALL_DIRECTORY}/SDRangel.app -always-overwrite -verbose=1 -qmldir=@CMAKE_CURRENT_SOURCE_DIR@/../../plugins/ )