cmake_minimum_required(VERSION 3.5)

set(VERSION_MAJOR 0)
set(VERSION_MINOR 0)
set(VERSION_PATCH 1)
set(PROJECT_VERSION "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}")

project(glw VERSION ${PROJECT_VERSION})

set(GLW_HEADERS
        buffer.h
        common.h
        shader.h
        vertex_descriptor.h
        texture.h
        framebuffer.h
        texture_array.h
        debug.h
        timer.h
)

# Set CPP Standard
set(CMAKE_CXX_STANDARD 23)
set(CMAKE_C_STANDARD 23)

# Find Dependencies
find_package(glm REQUIRED)
find_package(GLEW REQUIRED)
find_package(OpenGL REQUIRED COMPONENTS OpenGL)

add_subdirectory(open-cpp-utils)

add_library(glw INTERFACE
        ${GLW_HEADERS}
)

target_link_libraries(glw INTERFACE
        Freetype::Freetype
        GLEW::GLEW
        OpenGL::GL
        open-cpp-utils
)

# Testing Framework ----------------------------------------------------------------------------------------------------

if (GTest_FOUND)

find_package(GTest)

add_executable(glw-test)

target_link_libraries(glw-test PRIVATE
        GTest::gtest
        glw
)

endif ()

# DOXYGEN ==============================================================================================================
# https://vicrucann.github.io/tutorials/quick-cmake-doxygen/

find_package(Doxygen)

if(DOXYGEN_FOUND)
	get_filename_component(DOXYGEN_PROJECT_NAME ${CMAKE_CURRENT_SOURCE_DIR} NAME)
	set(DOXYGEN_CONFIG_IN ${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in)
	set(DOXYGEN_CONFIG_OUT ${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile)

	configure_file(${DOXYGEN_CONFIG_IN} ${DOXYGEN_CONFIG_OUT} @ONLY)
	message("Doxygen Build Started.")

	if(WIN32)
		add_custom_target(glw-documentation ALL
				COMMAND ${DOXYGEN_EXECUTABLE} ${DOXYGEN_CONFIG_OUT}
				COMMAND start firefox "${CMAKE_CURRENT_SOURCE_DIR}/Documentation/html/index.html"
				WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
				COMMENT "Generating Doxygen Documentation"
				VERBATIM)
	else()
		add_custom_target(glw-documentation ALL
				COMMAND ${DOXYGEN_EXECUTABLE} ${DOXYGEN_CONFIG_OUT}
				COMMAND firefox "${CMAKE_CURRENT_SOURCE_DIR}/Documentation/html/index.html"
				WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
				COMMENT "Generating Doxygen Documentation"
				VERBATIM)
	endif()
else()
	message("Doxygen not found.")
endif()