cmake_minimum_required(VERSION 3.24)

project(MacroDown LANGUAGES CXX VERSION 0.1.0)

set(CMAKE_CXX_STANDARD 23)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_EXPORT_COMPILE_COMMANDS TRUE)

# Strict compiler options
if(MSVC)
    add_compile_options(/W4 /WX)
else()
    add_compile_options(-Wall -Wextra -Wpedantic -Werror)
endif()

# Dependencies
include(FetchContent)

FetchContent_Declare(
  uni-algo
  URL https://github.com/uni-algo/uni-algo/archive/refs/tags/v1.2.0.zip
)
FetchContent_MakeAvailable(uni-algo)

# Source Configuration
# We will add source files explicitly to targets to avoid GLOB issues in larger projects.

add_library(macrodown_lib STATIC 
    src/macro_engine.cpp 
    src/parser.cpp 
    src/block_parser.cpp 
    src/converter.cpp 
    src/standard_library.cpp 
    src/macrodown.cpp
)

# Export the library as a namespaced target
add_library(MacroDown::MacroDown ALIAS macrodown_lib)

target_include_directories(macrodown_lib PUBLIC 
    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
    $<INSTALL_INTERFACE:include>
)

target_link_libraries(macrodown_lib PUBLIC uni-algo::uni-algo)

# Executables and Testing
# Only build these if MacroDown is the top-level project, avoiding pollution of consumer builds.
if(CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
    
    FetchContent_Declare(
      googletest
      URL https://github.com/google/googletest/archive/refs/heads/main.zip
    )
    # For Windows: Prevent overriding the parent project's compiler/linker settings
    set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
    FetchContent_MakeAvailable(googletest)

    add_executable(macrodown src/main.cpp)
    target_link_libraries(macrodown PRIVATE macrodown_lib)

    # Testing
    enable_testing()

    add_executable(macrodown_test 
        tests/test_main.cpp 
        tests/test_macro_engine.cpp 
        tests/test_block_parser.cpp 
        tests/test_nodes.cpp 
        tests/test_macrodown.cpp 
        tests/test_custom_markup.cpp
    )
    target_link_libraries(macrodown_test PRIVATE macrodown_lib GTest::gtest_main)
    target_include_directories(macrodown_test PRIVATE include)

    include(GoogleTest)
    gtest_discover_tests(macrodown_test)

endif()