cmake_minimum_required(VERSION 3.16)
project(EdgeProxy LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

# --- 查找并链接 spdlog ---
find_package(spdlog REQUIRED)
find_package(Boost REQUIRED COMPONENTS system thread)
message(STATUS "Found Boost version: ${Boost_VERSION}")
find_package(PahoMqttCpp REQUIRED)


add_library(nlohmann_json INTERFACE)
target_include_directories(nlohmann_json INTERFACE 
    ${CMAKE_CURRENT_SOURCE_DIR}/src/vendor 
)


add_library(edge_proxy_lib STATIC
    src/tcp_server.cc
    src/SystemMonitor.cc
    src/mqtt_client.cpp
    src/mqtt_router.cpp 
)

target_link_libraries(edge_proxy_lib PRIVATE
    spdlog::spdlog
    Boost::system
    Boost::thread
    PahoMqttCpp::paho-mqttpp3
    pthread
    nlohmann_json
)

# =================================================================
# 主应用目标 
# =================================================================
# add_executable(edge_proxy 
#                     src/main.cpp
# )


# target_link_libraries(edge_proxy PRIVATE 
#     edge_proxy_lib
# )

# =================================================================
# 测试目标 
# =================================================================
add_executable(test
                  src/test.cc  
)

target_link_libraries(test PRIVATE
    spdlog::spdlog
    Boost::system
    Boost::thread
)

# =================================================================
# 独立的 MQTT 功能测试目标
# =================================================================
# 创建一个新的可执行文件，名为 mqtt_test_runner
add_executable(mqtt_test_runner
    src/mqtt_test.cpp
)

# 将其链接到我们的核心逻辑库 edge_proxy_lib
# 注意：我们不需要再单独链接 spdlog, boost, paho 等库了，
# 因为 edge_proxy_lib 已经包含了所有这些依赖。
# 这正是我们之前重构为“库模式”带来的巨大好处！
target_link_libraries(mqtt_test_runner PRIVATE
    edge_proxy_lib
)

# =================================================================
# gtest
# =================================================================
# enable_testing()
# include(FetchContent)
# FetchContent_Declare(
#   googletest
#   URL https://github.com/google/googletest/archive/refs/tags/v1.14.0.zip
# )
# FetchContent_MakeAvailable(googletest)

# add_executable(run_tests
#     tests/mqtt_integration_test.cpp
# )

# target_link_libraries(run_tests PRIVATE
#     GTest::gtest_main
#     PahoMqttCpp::paho-mqttpp3
#     pthread
# )

# include(GoogleTest)
# gtest_discover_tests(run_tests)