cmake_minimum_required(VERSION 3.8)

project(re3 C CXX)
list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")

if(WIN32)
    set(RE3_AUDIOS "OAL" "MSS")
else()
    set(RE3_AUDIOS "OAL")
endif()

set(RE3_AUDIO "OAL" CACHE STRING "Audio")

option(RE3_WITH_OPUS "Build re3 with opus support" ON)
option(RE3_WITH_LIBSNDFILE "Build re3 with libsndfile (instead of internal decoder)" OFF)

set_property(CACHE RE3_AUDIO PROPERTY STRINGS ${RE3_AUDIOS})
message(STATUS "RE3_AUDIO = ${RE3_AUDIO} (choices=${RE3_AUDIOS})")
set("RE3_AUDIO_${RE3_AUDIO}" ON)
if(NOT RE3_AUDIO IN_LIST RE3_AUDIOS)
    message(FATAL_ERROR "Illegal RE3_AUDIO=${RE3_AUDIO}")
endif()

if(RE3_INSTALL)
    include(GNUInstallDirs)
    set(RE3_INSTALL_INCLUDEDIR "${CMAKE_INSTALL_INCLUDEDIR}/re3")
endif()

option(RE3_VENDORED_LIBRW "Use vendored librw" ON)
if(RE3_VENDORED_LIBRW)
    add_subdirectory(vendor/librw)
else()
    find_package(librw REQUIRED)
endif()
add_subdirectory(src)

if(RE3_INSTALL)
    include(CMakePackageConfigHelpers)
    configure_package_config_file(cmake/re3-config.cmake.in re3-config.cmake
        INSTALL_DESTINATION "${CMAKE_INSTALL_PREFIX}"
        )
    install(
        FILES "${CMAKE_CURRENT_BINARY_DIR}/re3-config.cmake"
        DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}"
        )
    install(
        EXPORT re3-targets
        DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}"
        )

    if(LIBRW_PLATFORM_NULL)
        set(platform "-null")
    elseif(LIBRW_PLATFORM_PS2)
        set(platform "-ps2")
    elseif(LIBRW_PLATFORM_GL3)
        if(LIBRW_GL3_GFXLIB STREQUAL "GLFW")
            set(platform "-gl3-glfw")
        else()
            set(platform "-gl3-sdl2")
        endif()
    elseif(LIBRW_PLATFORM_D3D9)
        set(platform "-d3d9")
    endif()
    if(RE3_AUDIO_OAL)
        set(audio "-oal")
    elseif(RE3_AUDIO_MSS)
        set(audio "-mss")
    endif()
    if(RE3_WITH_OPUS)
        set(audio "${audio}-opus")
    endif()
    if(NOT LIBRW_PLATFORM_PS2)
        if(WIN32)
            set(os "-win")
        elseif(APPLE)
            set(os "-apple")
        elseif(UNIX)
            set(os "-linux")
        else()
            set(compiler "-UNK")
            message(WARNING "Unknown os. Created cpack package will be wrong. (override using cpack -P)")
        endif()
    endif()

    set(CPACK_PACKAGE_NAME "${PROJECT_NAME}${platform}${audio}${os}${compiler}")
    set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "GTA III reversed")
    set(CPACK_PACKAGE_VENDOR "GTAModding")
    # FIXME: missing license (https://github.com/GTAmodding/re3/issues/794)
    # set(CPACK_PACKAGE_DESCRIPTION_FILE "${PROJECT_SOURCE_DIR}/LICENSE")
    # set(CPACK_RESOURCE_FILE_LICENSE "${PROJECT_SOURCE_DIR}/LICENSE")
    set(CPACK_PACKAGE_INSTALL_DIRECTORY "${CPACK_PACKAGE_NAME}")
    set(CPACK_SOURCE_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}")
    set(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}")
    set(CPACK_GENERATOR "TXZ")
    include(CPack)
endif()