cmake_minimum_required(VERSION 3.20)

include(FetchContent)

project(groovylight-sim)

set(CMAKE_CXX_STANDARD 20)
set(CMAKE_C_STANDARD 11)

FetchContent_Declare(
  dear_imgui
  GIT_REPOSITORY https://github.com/ocornut/imgui.git
  GIT_TAG 231cbee0fc4f59dbe5b8b853a11b08dc84e57c65 # version 1.90.5
  CONFIGURE_COMMAND ""
  BUILD_COMMAND ""
)

FetchContent_Declare(
  sokol
  GIT_REPOSITORY https://github.com/floooh/sokol.git
  GIT_TAG 55bc9cf3fa4051d485d10412c75c893c3135e885
  CONFIGURE_COMMAND ""
  BUILD_COMMAND ""
)

FetchContent_Declare(
  Catch2
  GIT_REPOSITORY https://github.com/catchorg/Catch2.git
  GIT_TAG        v3.4.0 # or a later release
)

FetchContent_MakeAvailable(sokol dear_imgui Catch2)

# imgui
add_library(imgui INTERFACE)
target_sources(imgui INTERFACE
  ${dear_imgui_SOURCE_DIR}/imgui.cpp
  ${dear_imgui_SOURCE_DIR}/imgui_draw.cpp
  ${dear_imgui_SOURCE_DIR}/imgui_tables.cpp
  ${dear_imgui_SOURCE_DIR}/imgui_widgets.cpp
  ${dear_imgui_SOURCE_DIR}/imgui_widgets.cpp
  ${dear_imgui_SOURCE_DIR}/imgui_demo.cpp
)
target_include_directories(imgui INTERFACE
  ${dear_imgui_SOURCE_DIR}
  ${dear_imgui_SOURCE_DIR}/backends/
)
# target_compile_options(imgui PRIVATE -Wno-unused-but-set-variable -Wno-type-limits -Wno-missing-field-initializers)


# sokol
add_library(sokol INTERFACE)
target_include_directories(sokol INTERFACE ${sokol_SOURCE_DIR})


# Catch2 setup
list(APPEND CMAKE_MODULE_PATH ${catch2_SOURCE_DIR}/extras) # needed for the catch_discover_tests function


# Verilator
list(APPEND VSOURCES ../verilog/hub75e.sv ../verilog/lineram.v)

set(CMAKE_EXPORT_COMPILE_COMMANDS TRUE)

find_package(verilator HINTS $ENV{VERILATOR_ROOT})


# OpenGL
find_package(OpenGL REQUIRED)
find_package(X11 REQUIRED)

# SIM
add_executable(sim)

target_sources(sim PRIVATE
    src/main.cpp
    src/sokol.cpp
)

target_include_directories(sim PRIVATE inc/)
target_compile_options(sim PRIVATE -DSOKOL_GLCORE33)

verilate(sim SOURCES ${VSOURCES} TRACE VERILATOR_ARGS -Wno-MULTITOP)

target_link_libraries(sim PUBLIC OpenGL::GL X11 Xi Xcursor dl pthread m)
target_link_libraries(sim PUBLIC sokol)
target_link_libraries(sim PUBLIC imgui)



# SIM TEST
add_executable(sim_test)
target_sources(sim_test PRIVATE
    test/hub75.cpp
)

target_include_directories(sim_test PRIVATE inc/)

target_link_libraries(sim_test PRIVATE sokol)

verilate(sim_test SOURCES ${VSOURCES} TRACE VERILATOR_ARGS -Wno-MULTITOP)

target_link_libraries(sim_test PRIVATE Catch2::Catch2WithMain)

include(CTest)
include(Catch)
catch_discover_tests(sim_test)