add_custom_target(fuzzers COMMENT "Build all fuzzers.")

if(CHECK_FUZZERS)
  add_dependencies(tests fuzzers)
endif()

# LIB_FUZZING_ENGINE is set by the Google OSS-Fuzz infrastructure. Otherwise we
# use Clang's LibFuzzer
if(DEFINED ENV{LIB_FUZZING_ENGINE})
  set(immer_fuzzing_engine $ENV{LIB_FUZZING_ENGINE})
else()
  set(immer_fuzzing_engine "-fsanitize=fuzzer")
endif()

file(GLOB_RECURSE immer_fuzzers "*.cpp")
foreach(TMP_PATH ${immer_fuzzers})
  string(FIND ${TMP_PATH} persist EXCLUDE_DIR_FOUND)
  if(NOT ${EXCLUDE_DIR_FOUND} EQUAL -1)
    list(REMOVE_ITEM immer_fuzzers ${TMP_PATH})
  endif()
endforeach(TMP_PATH)

foreach(_file IN LISTS immer_fuzzers)
  immer_target_name_for(_target _output "${_file}")
  add_executable(${_target} EXCLUDE_FROM_ALL "${_file}")
  set_target_properties(${_target} PROPERTIES OUTPUT_NAME ${_output})
  target_compile_options(${_target} PUBLIC ${immer_fuzzing_engine})
  target_compile_definitions(${_target} PUBLIC IMMER_THROW_ON_INVALID_STATE=1)
  target_link_libraries(${_target} PUBLIC ${immer_fuzzing_engine} immer-dev)
  add_dependencies(fuzzers ${_target})
  if(CHECK_FUZZERS)
    add_test("fuzzer/${_output}" ${_output} -max_total_time=1)
  endif()
  if(immer_INSTALL_FUZZERS)
    install(TARGETS ${_target} DESTINATION bin)
  endif()
endforeach()

if(immer_BUILD_PERSIST_TESTS)
  add_subdirectory(persist)
endif()