find_package(Python3 COMPONENTS Interpreter REQUIRED)
execute_process(
  COMMAND ${Python3_EXECUTABLE} -c "from PIL import features; assert features.check_feature('raqm')"
  RESULT_VARIABLE VAMP_PILLOW_STATUS
  ERROR_QUIET
)
if(NOT VAMP_PILLOW_STATUS EQUAL 0)
  message(FATAL_ERROR "Font generation requires Pillow with Raqm support. Install libfribidi0 on Debian/Ubuntu, then run: ${Python3_EXECUTABLE} -m pip install -r ${CMAKE_CURRENT_SOURCE_DIR}/generator/requirements.txt")
endif()

set(VAMP_FONT_SOURCE ${CMAKE_CURRENT_BINARY_DIR}/generated/vamp_style/font.cpp)
add_custom_command(
  OUTPUT ${VAMP_FONT_SOURCE}
  COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/generator/generate_pico_font.py
    --output ${VAMP_FONT_SOURCE}
  DEPENDS
    ${CMAKE_CURRENT_SOURCE_DIR}/generator/generate_pico_font.py
    ${CMAKE_CURRENT_SOURCE_DIR}/generator/requirements.txt
    ${CMAKE_CURRENT_SOURCE_DIR}/package/assets/fonts/petaluma/PetalumaScript.otf
  VERBATIM
)