cmake_minimum_required(VERSION 3.7.2)

if ("${CMAKE_BINARY_DIR}" STREQUAL "${CMAKE_SOURCE_DIR}")
    message(FATAL_ERROR "In-source builds are disabled.
    Please create a subfolder called build and use `cmake ..` inside it.
    NOTE: cmake will now create CMakeCache.txt and CMakeFiles/*.
          You must delete them, or cmake will refuse to work.")
endif()
set_property(DIRECTORY APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES "bin" "doc" "CMakeFiles" "lib" "include")


project(GUI)
set(CMAKE_CXX_STANDARD 14)

set(CMAKE_CXX_CLANG_TIDY "clang-tidy;")
set(CMAKE_CXX_CLANG_TIDY clang-tidy;-header-filter=.;)

file(GLOB_RECURSE SOURCES src/*.cpp)
file(GLOB_RECURSE HEADERS src/*.hpp)
file(GLOB_RECURSE TESTS test/*.cpp)

set(LIB_PATH "${CMAKE_SOURCE_DIR}/../library")

include_directories(${LIB_PATH}/include)
add_executable(GUI ${SOURCES} ${HEADERS} main/main.cpp)

target_link_libraries(GUI ${LIB_PATH}/lib/liblibrary.a)

set(FLTK_SKIP_FLUID true)
if(FALSE)
include_directories(../fltk-1.3.5/FL)
link_directories(${PROJECT_NAME} ../fltk-1.3.5/lib)
target_link_libraries(${PROJECT_NAME} fltk)
else()
find_package(FLTK REQUIRED)
include_directories(${FLTK_INCLUDE_DIR})
target_link_libraries(${PROJECT_NAME} ${FLTK_PLATFORM_DEPENDENT_LIBS} ${FLTK_LIBRARIES} ${OPENGL_LIBRARIES})
endif()

enable_testing()
find_package(Catch2 REQUIRED)
add_executable(UnitTests ${SOURCES} ${HEADERS} ${TESTS})
target_link_libraries(UnitTests Catch2::Catch2)
target_link_libraries(UnitTests ${LIB_PATH}/lib/liblibrary.a)
target_link_libraries(UnitTests ${FLTK_PLATFORM_DEPENDENT_LIBS} ${FLTK_LIBRARIES} ${OPENGL_LIBRARIES})

include(CTest)
include(Catch)
catch_discover_tests(UnitTests)