cmake_minimum_required(VERSION 3.14)
project(shadertoy_sdl3 LANGUAGES C CXX)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

if(NOT CMAKE_BUILD_TYPE)
  set(CMAKE_BUILD_TYPE Release)
endif()

find_package(SDL3 REQUIRED)

# comprobaremos que glad.c existe y lo añadimos
set(GLAD_SRC "${CMAKE_CURRENT_SOURCE_DIR}/third_party/glad/src/glad.c")
if(NOT EXISTS "${GLAD_SRC}")
  message(FATAL_ERROR "glad.c no encontrado en: ${GLAD_SRC}")
endif()

add_library(glad_src STATIC "${GLAD_SRC}")
target_include_directories(glad_src PUBLIC
  ${CMAKE_CURRENT_SOURCE_DIR}/third_party/glad/include
)
# forzar el lenguaje de enlace a C para evitar ambigüedades
set_target_properties(glad_src PROPERTIES LINKER_LANGUAGE C)

add_executable(shadertoy_sdl3
  src/main.cpp
)

target_link_libraries(shadertoy_sdl3 PRIVATE glad_src SDL3::SDL3)
target_include_directories(shadertoy_sdl3 PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/third_party/glad/include)

if (WIN32)
  target_link_libraries(shadertoy_sdl3 PRIVATE opengl32)
elseif(APPLE)
  find_library(COCOA_LIBRARY Cocoa)
  find_library(IOKIT_LIBRARY IOKit)
  find_library(CORE_VIDEO_LIBRARY CoreVideo)
  target_link_libraries(shadertoy_sdl3 PRIVATE ${COCOA_LIBRARY} ${IOKIT_LIBRARY} ${CORE_VIDEO_LIBRARY})
else()
  find_package(OpenGL REQUIRED)
  target_link_libraries(shadertoy_sdl3 PRIVATE OpenGL::GL)
endif()