file(
    GLOB_RECURSE
    FLATBUFFER_SOURCES
    "*.fbs"
)

foreach (FLATBUFFER_SOURCE IN LISTS ${FLATBUFFER_SOURCES})
    cmake_path(
        GET
        ${FLATBUFFER_SOURCE}
        FILENAME
        FLATBUFFER_SOURCE_NAME
    )

    string(
        CONCAT
        FLATBUFFER_GENERATED_SOURCE_NAME
        ${FLATBUFFER_SOURCE_NAME}
        "_generated"
    )

    cmake_path(
        REPLACE_EXTENSION
        ${FLATBUFFER_GENERATED_SOURCE_NAME}
        ".h"
        OUTPUT_VARIABLE
        FLATBUFFER_GENERATED_HEADER
    )

    list(APPEND FLATBUFFER_GENERATED_HEADERS ${FLATBUFFER_GENERATED_HEADER})
endforeach ()

add_custom_target(
    flatbuffer_headers
    COMMENT "Generating flatbuffer headers"
    DEPENDS ${FLATBUFFER_SOURCES}
    BYPRODUCTS ${FLATBUFFER_GENERATED_HEADERS}
    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
    COMMAND flatc --cpp --cpp-std "c++17" ${FLATBUFFER_SOURCES}
    VERBATIM
)