cmake_minimum_required(VERSION 3.24...3.31)

cmake_policy(SET CMP0077 NEW) # option() honors normal variables
cmake_policy(SET CMP0083 NEW) # control generation of PIE
cmake_policy(SET CMP0091 NEW) # MSVC runtime library flags
cmake_policy(SET CMP0135 NEW) # ExternalProject_Add respects timestamps

# Hacky hack hack for Windows
# Needs to be set before project is called. -__-
# We require windows SDK version: v10.0.22621 due to the D3D12 enum values
# we want only being available from this version onwards.
if(WIN32)
  set(CMAKE_SYSTEM_VERSION 10.0.22621.0)
endif()

project(NovelRT
  VERSION 1.0.0 #MVP Version
  DESCRIPTION "NovelRT game engine"
  HOMEPAGE_URL "https://novelrt.dev"
  LANGUAGES C CXX
)

include(CheckPIESupported)
check_pie_supported()

list(PREPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")

option(BUILD_SHARED_LIBS "Build using shared libraries" ON)

option(NOVELRT_CLANG_TIDY "Perform additional checks with clang-tidy during compilation" OFF)
option(NOVELRT_FETCH_DEPENDENCIES "Fetch and build NovelRT dependencies instead of providing system-based ones" ON)
option(NOVELRT_BUILD_SAMPLES "Build NovelRT samples" ON)
option(NOVELRT_BUILD_DOCUMENTATION "Build NovelRT documentation" OFF)
option(NOVELRT_BUILD_TESTS "Build NovelRT tests" ON)
option(NOVELRT_BUILD_INTEROP "Build NovelRT's Interop library" ON)
option(NOVELRT_VERBOSE_BUILD "Build NovelRT using verbose output" OFF)
option(NOVELRT_INSTALL "Generate installation targets" ON)
option(NOVELRT_USE_STD_SPAN "Alias \"NovelRT::Utilities::Misc:Span\" to \"std::span\" instead of \"gsl::span\"." OFF)
option(NOVELRT_BUILD_DEPS_WITH_MAX_CPU "Use all available CPU processing power when scaffolding/building the NovelRT internal dependences" OFF)

add_subdirectory(ThirdParty)

add_subdirectory(Exceptions)
add_subdirectory(Logging)
add_subdirectory(Maths)
add_subdirectory(Threading)
add_subdirectory(Timing)
add_subdirectory(Utilities)

add_subdirectory(Audio)
add_subdirectory(Graphics)
add_subdirectory(Input)
add_subdirectory(UI)
add_subdirectory(Windowing)

add_subdirectory(Samples)

if(NOVELRT_INSTALL)
  install(
    EXPORT NovelRTConfig
    EXPORT_LINK_INTERFACE_LIBRARIES
    NAMESPACE NovelRT::
    DESTINATION lib
  )
endif()