cmake_minimum_required(VERSION 3.25)
project(SimianProject)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

# -------------------------
# 1️⃣ Raylib (submodule)
# -------------------------
add_subdirectory(external/raylib)

# -------------------------
# 2️⃣ AngelScript (submodule)
# -------------------------
add_subdirectory(external/angelscript/sdk/angelscript/projects/cmake)

# -------------------------
# Dear ImGui (docking branch)
# -------------------------
# Ensure the submodule exists at external/imgui (added with git submodule)
add_subdirectory(cmake/imgui)

# -------------------------
# rlImGui (optional - Raylib ImGui integration)
# -------------------------
# If you add rlImGui as a submodule under external/rlImGui, CMake will pick it up
option(USE_RLIMGUI "Enable rlImGui integration if found in external/rlImGui" ON)
set(RLIMGUI_ROOT "${CMAKE_SOURCE_DIR}/external/rlImGui")
if(USE_RLIMGUI)
    if(EXISTS "${RLIMGUI_ROOT}/CMakeLists.txt")
        message(STATUS "rlImGui CMakeLists found at ${RLIMGUI_ROOT} - adding to build")
        add_subdirectory(${RLIMGUI_ROOT} EXCLUDE_FROM_ALL)
        set(HAVE_RLIMGUI TRUE)
    elseif(EXISTS "${RLIMGUI_ROOT}")
        message(STATUS "rlImGui sources found at ${RLIMGUI_ROOT} - using project wrapper cmake/rlImGui")
        add_subdirectory(cmake/rlImGui)
        set(HAVE_RLIMGUI TRUE)
    else()
        set(HAVE_RLIMGUI FALSE)
    endif()
else()
    set(HAVE_RLIMGUI FALSE)
endif()
# -------------------------
# Tests
# -------------------------
enable_testing()
add_subdirectory(tests)
# -------------------------
# 3️⃣ scriptstdstring add-on
# -------------------------
add_library(scriptstdstring STATIC
    external/angelscript/sdk/add_on/scriptstdstring/scriptstdstring.cpp
)

target_include_directories(scriptstdstring
    PUBLIC external/angelscript/sdk/angelscript/include
)

# -------------------------
# 3️⃣.1️⃣ scriptbuilder add-on
# -------------------------
add_library(scriptbuilder STATIC
    external/angelscript/sdk/add_on/scriptbuilder/scriptbuilder.cpp
)

target_include_directories(scriptbuilder
    PUBLIC external/angelscript/sdk/angelscript/include
)

# -------------------------
# 4️⃣ Main executable
# -------------------------
add_executable(simian 
    main.cpp
    src/Application.cpp
    src/scripting/ScriptEngine.cpp
    src/scripting/ScriptBindings.cpp
    src/scripting/ToastBindings.cpp
    src/scripting/LogBindings.cpp
    src/scripting/DrawBindings.cpp
    src/scripting/ImageBindings.cpp
    src/scripting/TextureBindings.cpp
    src/scripting/MathBindings.cpp
    src/HotReload.cpp
    src/gui/GuiManager.cpp
    src/gui/LogWindow.cpp
    src/log/log.c
)

target_include_directories(simian PUBLIC
    include
    include/scripting
    include/gui
    src/log
    external/raylib/src
    external/angelscript/sdk/angelscript/include
    external/angelscript/sdk/add_on/scriptstdstring
    external/angelscript/sdk/add_on/scriptbuilder
    external/imgui     
)

target_link_libraries(simian PRIVATE
    raylib
    angelscript
    scriptstdstring
    scriptbuilder
    imgui
)

if(HAVE_RLIMGUI)
    target_include_directories(simian PUBLIC ${RLIMGUI_ROOT}/include)
    target_link_libraries(simian PRIVATE rlImGui)
    # Expose HAVE_RLIMGUI to the C++ compiler so source can guard ImGui calls
    target_compile_definitions(simian PRIVATE HAVE_RLIMGUI=1)
    message(STATUS "Linking rlImGui into simian")
else()
    message(STATUS "rlImGui not found - building without rlImGui integration")
endif()

# -------------------------
# 5️⃣ Platform-specific linking
# -------------------------
if(WIN32)
    target_link_libraries(simian PRIVATE winmm gdi32)
elseif(UNIX)
    # Linux / macOS: Raylib handles system libs automatically
endif()

# -------------------------
# 6️⃣ Optional: Compile flags
# -------------------------
if(MSVC)
    target_compile_options(simian PRIVATE /W4 /EHsc)
else()
    target_compile_options(simian PRIVATE -Wall -Wextra -pedantic)
endif()
# -------------------------