add_custom_target(pyfeelpp)
configure_file(__init__.py.in ${CMAKE_CURRENT_SOURCE_DIR}/__init__.py @ONLY)
feelpp_add_pymodule(feelpp SRCS feelpp.cpp DESTINATION feelpp/core )
feelpp_add_pymodule(core SRCS core.cpp remotedata.cpp  DESTINATION feelpp/core )
feelpp_add_pymodule(alg SRCS alg.cpp DESTINATION feelpp/core )
if ( PETSC4PY_FOUND )
  target_compile_definitions(_alg PRIVATE -DFEELPP_HAS_PETSC4PY=1)
endif()
feelpp_add_pymodule(mesh SRCS mesh.cpp mesh1.cpp mesh2.cpp mesh3.cpp DESTINATION feelpp/core )
feelpp_add_pymodule(discr SRCS discr.cpp DESTINATION feelpp/core )
feelpp_add_pymodule(exporter SRCS exporter.cpp hbf.cpp  DESTINATION feelpp/core )
feelpp_add_pymodule(ls SRCS ls.cpp DESTINATION feelpp/core )
feelpp_add_pymodule(ts SRCS ts.cpp DESTINATION feelpp/core )
feelpp_add_pymodule(forms SRCS forms.cpp DESTINATION feelpp/core )
feelpp_add_pymodule(vf SRCS vf.cpp DESTINATION feelpp/core )
feelpp_add_pymodule(measure SRCS measure.cpp DESTINATION feelpp/core )
feelpp_add_pymodule(integrate SRCS integrate.cpp DESTINATION feelpp/core )
feelpp_add_pymodule(interpolation SRCS interpolation.cpp DESTINATION feelpp/core )
feelpp_add_pymodule(operators SRCS operators.cpp operators1.cpp operators2.cpp operators3.cpp DESTINATION feelpp/core )
feelpp_add_pymodule(models SRCS models.cpp DESTINATION feelpp/core )
feelpp_add_pymodule(quality SRCS quality.cpp DESTINATION feelpp/core )
feelpp_add_pymodule(plot SRCS plot.cpp DESTINATION feelpp/core )
feelpp_add_pymodule(timing SRCS timing.cpp DESTINATION feelpp/core)
feelpp_add_pymodule(meshmover SRCS meshmover.cpp DESTINATION feelpp/core)
foreach(MODULE IN ITEMS core feelpp alg mesh discr exporter ls ts vf forms measure models integrate interpolation operators quality timing meshmover plot)
  add_dependencies(pyfeelpp _${MODULE})
endforeach()

set(PYFILES __init__.py integrate.py measure.py quality.py interpolation.py operators.py timing.py meshmover.py plotly.py forms.py )

# Copy all .py files to build directory for testing without install
add_custom_target(copy_pyfiles_to_build ALL)

# Copy the configured __init__.py file
add_custom_command(
  TARGET copy_pyfiles_to_build POST_BUILD
  COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_BINARY_DIR}/python/pyfeelpp/feelpp/core
  COMMAND ${CMAKE_COMMAND} -E copy
          ${CMAKE_CURRENT_SOURCE_DIR}/__init__.py
          ${CMAKE_BINARY_DIR}/python/pyfeelpp/feelpp/core/__init__.py
)

foreach(PYFILE ${PYFILES})
  if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${PYFILE})
    add_custom_command(
      TARGET copy_pyfiles_to_build POST_BUILD
      COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_BINARY_DIR}/python/pyfeelpp/feelpp/core
      COMMAND ${CMAKE_COMMAND} -E copy
              ${CMAKE_CURRENT_SOURCE_DIR}/${PYFILE}
              ${CMAKE_BINARY_DIR}/python/pyfeelpp/feelpp/core/${PYFILE}
    )
  endif()
endforeach()

# Ensure .py files are copied after modules are built
foreach(MODULE IN ITEMS core feelpp alg mesh discr exporter ls ts vf forms measure models integrate interpolation operators quality timing meshmover plot)
  add_dependencies(copy_pyfiles_to_build _${MODULE})
endforeach()

install(FILES ${PYFILES} DESTINATION ${FEELPP_PYTHON_MODULE_PATH}/feelpp/core)