cmake_minimum_required(VERSION 3.20)
project(factory-hole-core LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

include(FetchContent)

# Flecs ECS
FetchContent_Declare(
    flecs
    GIT_REPOSITORY https://github.com/SanderMertens/flecs.git
    GIT_TAG v4.1.4
    GIT_SHALLOW TRUE
)

# Doctest
FetchContent_Declare(
    doctest
    GIT_REPOSITORY https://github.com/doctest/doctest.git
    GIT_TAG v2.4.12
    GIT_SHALLOW TRUE
)

# GLFW (windowing for node-editor tool)
FetchContent_Declare(
    glfw
    GIT_REPOSITORY https://github.com/glfw/glfw.git
    GIT_TAG 3.4
    GIT_SHALLOW TRUE
)
set(GLFW_BUILD_DOCS     OFF CACHE BOOL "" FORCE)
set(GLFW_BUILD_TESTS    OFF CACHE BOOL "" FORCE)
set(GLFW_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)

# Dear ImGui
FetchContent_Declare(
    imgui
    GIT_REPOSITORY https://github.com/ocornut/imgui.git
    GIT_TAG v1.91.6
    GIT_SHALLOW TRUE
)

# imnodes
FetchContent_Declare(
    imnodes
    GIT_REPOSITORY https://github.com/Nelarius/imnodes.git
    GIT_TAG v0.5
    GIT_SHALLOW TRUE
)

FetchContent_MakeAvailable(flecs doctest glfw imgui imnodes)

# ── Core library ──────────────────────────────────────────────────────────────

set(SOURCES
    src/Components/Config/WorldConfig.cpp
    src/Components/Support.cpp
    src/Components/WorldGraph.cpp
    src/Core/WorldInstance.cpp
)

add_library(factory-hole-core ${SOURCES})

target_include_directories(factory-hole-core PUBLIC
    ${CMAKE_CURRENT_SOURCE_DIR}/include
)

target_link_libraries(factory-hole-core PUBLIC
    flecs::flecs_static
    doctest::doctest
)

# ── Main executable ───────────────────────────────────────────────────────────

add_executable(factory-hole-app src/main.cpp)
target_link_libraries(factory-hole-app PRIVATE factory-hole-core)

# ── Tests ─────────────────────────────────────────────────────────────────────

enable_testing()

file(GLOB_RECURSE TEST_SOURCES tests/*.cpp)

add_executable(factory-hole-tests ${TEST_SOURCES})

target_include_directories(factory-hole-tests PRIVATE
    ${CMAKE_CURRENT_SOURCE_DIR}/include
)

target_link_libraries(factory-hole-tests PRIVATE
    factory-hole-core
    doctest::doctest_with_main
)

add_test(NAME factory-hole-tests COMMAND factory-hole-tests)

# ── Node editor tool ──────────────────────────────────────────────────────────

add_subdirectory(tools/node-editor)