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cmake_minimum_required(VERSION "4.2.0")

project("ttwhy"
  VERSION "1.0.0"
  LANGUAGES CXX
)

### Fetch Dependencies

include("FetchContent")

FetchContent_Declare("asio"
  GIT_REPOSITORY "https://github.com/chriskohlhoff/asio"
  GIT_TAG "asio-1-38-0"
)

FetchContent_Declare("catch2"
  GIT_REPOSITORY "https://github.com/catchorg/Catch2.git"
  GIT_TAG "v3.15.1"
)

FetchContent_Declare("sml"
  GIT_REPOSITORY "https://github.com/boost-ext/sml"
  GIT_TAG "v1.2.0"
)

FetchContent_MakeAvailable(
  "asio"
  "catch2"
  "sml"
)

### asio

find_package("Threads")

add_library("asio" INTERFACE)
add_library("ext::asio" ALIAS "asio")

target_include_directories("asio" SYSTEM INTERFACE
  "${asio_SOURCE_DIR}/asio/include"
)

target_link_libraries("asio" INTERFACE
  "Threads::Threads"
)

### Core Library

add_library("ttwhy-core")
add_library("ttwhy::lib" ALIAS "ttwhy-core")

target_sources("ttwhy-core" PUBLIC
  FILE_SET CXX_MODULES
  FILES

  "ttwhy/io.cppm"
  "ttwhy/lib.cppm"
  "ttwhy/scoped_attributes.cppm"

  "ttwhy/routers/echo.cppm"
  "ttwhy/routers/mod.cppm"

  "ttwhy/scanners/concepts.cppm"
  "ttwhy/scanners/events.cppm"
  "ttwhy/scanners/mod.cppm"
  "ttwhy/scanners/terminal_policies.cppm"
  "ttwhy/scanners/terminal_scanner.cppm"
)

target_include_directories("ttwhy-core" PUBLIC
  "${CMAKE_SOURCE_DIR}"
)

target_compile_features("ttwhy-core" PUBLIC
  "cxx_std_23"
)

target_link_libraries("ttwhy-core" PUBLIC
  "ext::asio"
  "sml::sml"
)

target_compile_options("ttwhy-core" PUBLIC
  "$<$<CXX_COMPILER_ID:Clang,GNU>:-Wall>"
  "$<$<CXX_COMPILER_ID:Clang,GNU>:-Wextra>"
  "$<$<CXX_COMPILER_ID:Clang,GNU>:-Werror>"
  "$<$<CXX_COMPILER_ID:Clang,GNU>:-pedantic-errors>"
)

### Main Executable

add_executable("ttwhy")
add_executable("ttwhy::app" ALIAS "ttwhy")

target_sources("ttwhy" PRIVATE
  "ttwhy/main.cpp"
)

target_link_libraries("ttwhy" PRIVATE
  "ttwhy::lib"
)

### Tests

include("CTest")

if(BUILD_TESTING)
  include("Catch")

  add_executable("ttwhy-tests")
  add_executable("ttwhy::tests" ALIAS "ttwhy-tests")

  target_sources("ttwhy-tests" PRIVATE
    "ttwhy/scanners/terminal_scanner.tests.cpp"
  )

  target_link_libraries("ttwhy-tests" PRIVATE
    "ttwhy::lib"
    "Catch2::Catch2WithMain"
  )

  catch_discover_tests("ttwhy-tests")
endif()