cmake_minimum_required(VERSION 3.16)

project(MyLogger LANGUAGES CXX)

# 同时识别 Qt5 与 Qt6，避免公共模块把消费者固定在单一 Qt 主版本。
find_package(QT NAMES Qt6 Qt5 REQUIRED COMPONENTS Core)
find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Core)

add_library(MyLogger SHARED
    loghandler.cpp
    loghandler.h
)

# 目标自身导出符号，使用方只获得公共头文件、C++17 要求和 Qt Core 传递依赖。
target_compile_features(MyLogger PUBLIC cxx_std_17)
target_compile_definitions(MyLogger PRIVATE MYLOGGER_LIBRARY QT_MESSAGELOGCONTEXT)
target_include_directories(MyLogger PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
target_link_libraries(MyLogger PUBLIC Qt${QT_VERSION_MAJOR}::Core)

# 测试目标直接编译日志源码并开启测试访问宏，避免依赖已安装 DLL，也不改变正式库的公开行为。
include(CTest)
if(BUILD_TESTING)
    find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Test)
    add_executable(MyLoggerTests
        tests/tst_loghandler.cpp
        loghandler.cpp
        loghandler.h
    )
    target_compile_features(MyLoggerTests PRIVATE cxx_std_17)
    target_compile_definitions(MyLoggerTests PRIVATE MYLOGGER_STATIC MYLOGGER_TESTING QT_MESSAGELOGCONTEXT)
    target_include_directories(MyLoggerTests PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
    target_link_libraries(MyLoggerTests PRIVATE Qt${QT_VERSION_MAJOR}::Core Qt${QT_VERSION_MAJOR}::Test)
    add_test(NAME MyLoggerTests COMMAND MyLoggerTests)
endif()