cmake_minimum_required(VERSION 3.16.0 FATAL_ERROR)

project(CGI-framework C CXX)

add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/external)

find_package(OpenGL REQUIRED)

set(IMGUI_DIR external/imgui)
set(PROJECT_INCLUDE_DIRS
        include
#        scenegraph
        ${CMAKE_CURRENT_SOURCE_DIR}
        ${EMBREE_INCLUDE_DIRS}
        ${CMAKE_CURRENT_BINARY_DIR}
        ${GLFW_INCLUDE}
        ${GLAD_INCLUDE}
        ${IMGUI_DIR}
        ${IMGUI_DIR}/backends)

set(SOURCES_IMGUI
        ${IMGUI_DIR}/backends/imgui_impl_glfw.cpp
        ${IMGUI_DIR}/backends/imgui_impl_opengl3.cpp
        ${IMGUI_DIR}/imgui.cpp
        ${IMGUI_DIR}/imgui_draw.cpp
        ${IMGUI_DIR}/imgui_demo.cpp
        ${IMGUI_DIR}/imgui_tables.cpp
        ${IMGUI_DIR}/imgui_widgets.cpp)

set(SOURCES_LIGHT
        lights/light.cpp
        lights/light.h
        lights/ambient_light.cpp
        lights/ambient_light.h
        lights/directional_light.cpp
        lights/directional_light.h
        lights/point_light.cpp
        lights/point_light.h
        lights/quad_light.cpp
        lights/quad_light.h
        lights/spot_light.cpp
        lights/spot_light.h
)

set(SOURCES
        ${SOURCES_IMGUI}
        ${SOURCES_LIGHT}
        scenegraph/scenegraph.cpp
        scenegraph/obj_loader.cpp
        src/application.cpp
)

add_library(${PROJECT_NAME} ${SOURCES})
target_include_directories(${PROJECT_NAME} PUBLIC ${PROJECT_INCLUDE_DIRS})
target_link_libraries(${PROJECT_NAME} PUBLIC glfw OpenGL::GL glad embree)