cmake_minimum_required(VERSION 3.12)

project(nostalgia)

set(NOSTALGIA_BUILD_TYPE "Native" CACHE STRING "The type of build to produce(Native/GBA)")
set(NOSTALGIA_IDE_BUILD ON CACHE STRING "Build for IDE's to run")
set(NOSTALGIA_QT_PATH "" CACHE STRING "Path to Qt Libraries")
set(NOSTALGIA_BUILD_STUDIO ON CACHE STRING "Build Studio")

if(NOSTALGIA_BUILD_TYPE STREQUAL "GBA")
	set(NOSTALGIA_BUILD_STUDIO OFF)
	set(OX_BARE_METAL ON)
	set(OX_USE_STDLIB OFF)
else()
	set(NOSTALGIA_BUILD_STUDIO ON)
	set(CMAKE_PREFIX_PATH ${CMAKE_PREFIX_PATH} ${NOSTALGIA_QT_PATH})
endif()


list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/modules)
include(address_sanitizer)

set(NOSTALGIA_CONAN_PATHS ${CMAKE_SOURCE_DIR}/conanbuild/conan_paths.cmake)
if(NOT NOSTALGIA_BUILD_TYPE STREQUAL "GBA" AND EXISTS ${NOSTALGIA_CONAN_PATHS})
	include(${NOSTALGIA_CONAN_PATHS})
endif()

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
if(NOT OX_BARE_METAL)
	set(CMAKE_POSITION_INDEPENDENT_CODE ON)
endif()

if(CMAKE_BUILD_TYPE STREQUAL "Debug")
	add_definitions(-DDEBUG)
else()
	add_definitions(-DNDEBUG)
endif()

if(NOT MSVC)
	# forces colored output when using ninja
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fdiagnostics-color")

	# enable warnings
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wextra")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wcast-align")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wdouble-promotion")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wformat=2")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wmissing-field-initializers")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wnon-virtual-dtor")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wnull-dereference")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wold-style-cast")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Woverloaded-virtual")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wpedantic")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wsign-compare")
	#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wsign-conversion")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wunused")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wunused-variable")

	if(NOSTALGIA_BUILD_TYPE STREQUAL "GBA")
		include(GBA)
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -nostdlib")
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -nostdinc++")
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-unwind-tables")
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions")
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti")
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-strict-aliasing")
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mthumb-interwork")
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mthumb")
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mcpu=arm7tdmi")
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mtune=arm7tdmi")
	endif()

	if (CMAKE_BUILD_TYPE STREQUAL "Release")
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror")
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O3")
	endif()
endif()

if(NOSTALGIA_IDE_BUILD)
	set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
	set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
endif()

if(NOT NOSTALGIA_BUILD_TYPE STREQUAL "GBA")
	add_definitions(-DOX_USE_STDLIB)
endif()

if(APPLE)
	set(CMAKE_MACOSX_RPATH OFF)
	set(CMAKE_INSTALL_NAME_DIR "@executable_path/../Library/nostalgia")
	set(NOSTALGIA_DIST_BIN              nostalgia-studio.app/Contents/MacOS)
	set(NOSTALGIA_DIST_LIB              nostalgia-studio.app/Contents/Library)
	set(NOSTALGIA_DIST_PLUGIN           nostalgia-studio.app/Contents/Plugins)
	set(NOSTALGIA_DIST_RESOURCES        nostalgia-studio.app/Contents/Resources)
	set(NOSTALGIA_DIST_MAC_APP_CONTENTS nostalgia-studio.app/Contents)
else()
	set(CMAKE_INSTALL_RPATH "$ORIGIN" "$ORIGIN/../lib/nostalgia")
	if(NOT ${NOSTALGIA_QT_PATH} STREQUAL "")
		set(CMAKE_INSTALL_RPATH ${CMAKE_INSTALL_RPATH} "${NOSTALGIA_QT_PATH}/lib")
	endif()
	set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
	set(NOSTALGIA_DIST_BIN       bin)
	set(NOSTALGIA_DIST_LIB       lib)
	set(NOSTALGIA_DIST_PLUGIN    lib/nostalgia/plugins)
	set(NOSTALGIA_DIST_RESOURCES share)
endif()

enable_testing()

if(NOSTALGIA_BUILD_TYPE STREQUAL "GBA")
	add_subdirectory(deps/gbastartup)
endif()

add_subdirectory(deps/ox)
include_directories(deps/ox/src)

add_subdirectory(src)