cmake_minimum_required(VERSION 3.8)

set(EXECUTABLE re3)
set(PROJECT RE3)

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

include(GetGitRevisionDescription)
get_git_head_revision(GIT_REFSPEC GIT_SHA1 "ALLOW_LOOKING_ABOVE_CMAKE_SOURCE_DIR")
message(STATUS "Building ${CMAKE_PROJECT_NAME} GIT SHA1: ${GIT_SHA1}")

if(WIN32)
    set(${PROJECT}_AUDIOS "OAL" "MSS")
else()
    set(${PROJECT}_AUDIOS "OAL")
endif()

set(${PROJECT}_AUDIO "OAL" CACHE STRING "Audio")

option(${PROJECT}_INSTALL "Enable installation of ${EXECUTABLE} + gamefiles" OFF)
option(${PROJECT}_WITH_OPUS "Build ${EXECUTABLE} with opus support" OFF)
option(${PROJECT}_WITH_LIBSNDFILE "Build ${EXECUTABLE} with libsndfile (instead of internal decoder)" OFF)

set_property(CACHE ${PROJECT}_AUDIO PROPERTY STRINGS ${${PROJECT}_AUDIOS})
message(STATUS "${PROJECT}_AUDIO = ${${PROJECT}_AUDIO} (choices=${${PROJECT}_AUDIOS})")
set("${PROJECT}_AUDIO_${${PROJECT}_AUDIO}" ON)
if(NOT ${PROJECT}_AUDIO IN_LIST ${PROJECT}_AUDIOS)
    message(FATAL_ERROR "Illegal ${PROJECT}_AUDIO=${${PROJECT}_AUDIO}")
endif()

option(${PROJECT}_VENDORED_LIBRW "Use vendored librw" ON)
if(${PROJECT}_VENDORED_LIBRW)
    add_subdirectory(vendor/librw)
else()
    find_package(librw REQUIRED)
endif()
add_subdirectory(src)

if(${PROJECT}_INSTALL)
    install(DIRECTORY gamefiles/ DESTINATION ".")
    if(LIBRW_PLATFORM_NULL)
        set(platform "-null")
    elseif(LIBRW_PLATFORM_PS2)
        set(platform "-ps2")
    elseif(LIBRW_PLATFORM_GL3)
        if(LIBRW_GL3_GFXLIB STREQUAL "GLFW")
            set(platform "-gl3-glfw")
        else()
            set(platform "-gl3-sdl2")
        endif()
    elseif(LIBRW_PLATFORM_D3D9)
        set(platform "-d3d9")
    endif()
    if(${PROJECT}_AUDIO_OAL)
        set(audio "-oal")
    elseif(${PROJECT}_AUDIO_MSS)
        set(audio "-mss")
    endif()
    if(${PROJECT}_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 "ZIP")
    include(CPack)
endif()