cmake_minimum_required(VERSION 3.5.1)

#define project
set(MATH_SIMULATOR MathSimulator)
project(${MATH_SIMULATOR})

set(PROJECT_ROOT_DIR "${${MATH_SIMULATOR}_SOURCE_DIR}")

#Base QT directory
set(QT_PATH "home/QT")

#Build output path of your QT Creator project
set(QT_BIN "./build-MathSimulator-Desktop_Qt_5_10_1_GCC_64bit-Debug")

#QT Version used, e.g. Probably found in ${QT_PATH}
set(QT_VERSION "5.5")

#Libraries to link to
set(QT_LIBRARIES Qt5::Core Qt5::Widgets Qt5::Gui Qt5::Charts)

#Libraries required. Probably the same as above minus the '::'. find_package() will be called on these
set(QT_LIBRARIES_REQUIRED Qt5Core Qt5Widgets Qt5Gui Qt5Charts) #CANNOT FIND Qt5Charts
#################################################################

#Pull needed header files generated by QT first
set(QT_GENERATED qtGenerated)
add_custom_target(${QT_GENERATED})

#Get all header files in the directory
file(GLOB QT_GEN_HEADERS ${QT_BIN}/*.h)

#Copy them to the project dir
foreach(QT_GEN_HEADERS ${QT_GEN_HEADERS})
    add_custom_command(TARGET ${QT_GENERATED} PRE_BUILD COMMAND
            ${CMAKE_COMMAND} -E copy_if_different
            ${QT_GEN_HEADERS} ${CMAKE_SOURCE_DIR})
endforeach()

# Find the Qt libraries
foreach(QT_LIBRARIES_REQUIRED ${QT_LIBRARIES_REQUIRED})
    find_package( ${QT_LIBRARIES_REQUIRED} REQUIRED )
endforeach()

#set(QT_GENERATED qtGenerated)
#add_custom_target(${QT_GENERATED})
#add_dependencies(${PROJECT_NAME} ${QT_GENERATED})

#Get all header files in the directory
file(GLOB QT_GEN_HEADERS ./QtBinDebug542/*.h)

#Copy them to the project dir
foreach(QT_GEN_HEADERS ${QT_GEN_HEADERS})
    add_custom_command(TARGET ${QT_GENERATED} PRE_BUILD COMMAND
            ${CMAKE_COMMAND} -E copy_if_different
            ${QT_GEN_HEADERS} ${CMAKE_SOURCE_DIR})
endforeach()

file(GLOB QT_CPP_GENERATED ./QtBinDebug542/debug/*.cpp)

#file(GLOB...) allows for wildcard additions:
#NOTE: every cmake article I've read suggest to manually list all of the files
#instead of using GLOBs, because this could lead to weird dependancies.
#For now leave it as GLOB and before release -> They will be listed.
file(GLOB SOURCES
        "${PROJECT_ROOT_DIR}/*.cpp"
        "${PROJECT_ROOT_DIR}/utils/*.cpp"
        "${PROJECT_ROOT_DIR}/Charts/*.cpp"
        ${QT_GEN_HEADERS}
        ${QT_CPP_GENERATED})


#generate engine binary
add_executable(${MATH_SIMULATOR}
               ${SOURCES})


#adding -std=c++14 flag
set_property(TARGET ${MATH_SIMULATOR} PROPERTY CXX_STANDARD 14)


target_link_libraries(${MATH_SIMULATOR}
                        Qt5::Core
                        Qt5::Widgets
                        Qt5::Gui
#                        Qt5::Charts
                      m)                             # -lm flag