FIND_PACKAGE(PythonInterp REQUIRED)

# build

FILE(COPY
  ${CMAKE_CURRENT_SOURCE_DIR}/py-kdtree.hpp.tmpl
  DESTINATION ${CMAKE_CURRENT_BINARY_DIR})
FILE(COPY
  ${CMAKE_CURRENT_SOURCE_DIR}/py-kdtree.i.tmpl
  DESTINATION ${CMAKE_CURRENT_BINARY_DIR})

ADD_CUSTOM_COMMAND(OUTPUT py-kdtree.hpp py-kdtree.i
  COMMAND ${PYTHON_EXECUTABLE}
    ${CMAKE_SOURCE_DIR}/python-bindings/gen-swig-hpp.py
  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
  DEPENDS gen-swig-hpp.py py-kdtree.hpp.tmpl py-kdtree.i.tmpl
)

ADD_CUSTOM_COMMAND(OUTPUT _kdtree.so kdtree.py
  COMMAND ${PYTHON_EXECUTABLE}
    ${CMAKE_SOURCE_DIR}/python-bindings/setup.py
    build_ext
    --include-dir=${CMAKE_SOURCE_DIR}
    build
  DEPENDS py-kdtree.hpp py-kdtree.i setup.py
  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
)

ADD_CUSTOM_TARGET(python-kdtree ALL DEPENDS _kdtree.so kdtree.py)

# install

INSTALL(CODE "execute_process(
  COMMAND ${CMAKE_COMMAND}
    -DSETUP_PY=${CMAKE_CURRENT_SOURCE_DIR}/setup.py
    -DPYTHON_EXECUTABLE=${PYTHON_EXECUTABLE}
    -DPREFIX=${CMAKE_INSTALL_PREFIX}
    -DWDIR=${CMAKE_CURRENT_BINARY_DIR}
    -P ${CMAKE_CURRENT_SOURCE_DIR}/setup_py_with_destdir.cmake)"
  DEPENDS python-kdtree
)

# tests

ADD_TEST(NAME python-kdtree
  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
  COMMAND ${PYTHON_EXECUTABLE}
    ${CMAKE_CURRENT_SOURCE_DIR}/setup.py test
)
SET_TESTS_PROPERTIES(python-kdtree
  PROPERTIES ENVIRONMENT
  "PYTHONPATH=${CMAKE_CURRENT_BINARY_DIR}")