CMakeLists.txt

# agent.cpp — 陪伴型智能体（Cosplay Agent）的桌面外壳 + 本机服务
# =============================================================================
# 打包方式沿用 cell-app：
#
#   cmake -B build            # 配置 (Ninja / Makefiles)
#   cmake --build build       # 编译   → build/agent[.exe]
#
# Windows 需要 MSYS2 UCRT64 工具链（g++ / windres），默认静态链接：
# 产物只导入系统 DLL，WebView2 运行时由系统 Edge 提供。
#
# 选项：
#   -DAGENT_STATIC=OFF         Windows：链接 MSYS2 运行时 DLL（默认静态）
#   -DAGENT_CONSOLE=ON         Windows：保留控制台（调试）
#   -DAGENT_BUILD_UI=OFF       沿用已提交的 src/agent-ui.hpp（不需要 Python）
#   -DAGENT_CXX_STANDARD=23    不支持 -std=c++26 的编译器
# =============================================================================

cmake_minimum_required(VERSION 3.25)

project(agent LANGUAGES CXX)

# 智能体内核：cell.cpp（单文件库，作为子模块/副本放在源码树里）
if(NOT EXISTS "${CMAKE_SOURCE_DIR}/cell.cpp/cell.cpp")
    message(FATAL_ERROR
        "cell.cpp/cell.cpp not found — initialize the submodule first:\n"
        "  git submodule update --init --recursive")
endif()

# ---- options ----------------------------------------------------------------

option(AGENT_STATIC "Windows only: link the runtime + libcurl/libsodium statically" ON)
option(AGENT_CONSOLE "Windows only: keep a console window (debugging)" OFF)
option(AGENT_BUILD_UI "Regenerate the embedded UI from src/ui/src before building" ON)

set(AGENT_CXX_STANDARD "26" CACHE STRING
    "C++ standard (26 by default; set 23 on compilers without -std=c++26)")

# ---- artifacts land in <source>/build ---------------------------------------

set(AGENT_OUTPUT_DIR "${CMAKE_SOURCE_DIR}/build" CACHE PATH
    "Directory the built executable lands in")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${AGENT_OUTPUT_DIR}")
foreach(_agent_cfg DEBUG RELEASE RELWITHDEBINFO MINSIZEREL)
    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_${_agent_cfg} "${AGENT_OUTPUT_DIR}")
endforeach()

if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
    set(CMAKE_BUILD_TYPE Release CACHE STRING "Build type" FORCE)
    set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS Debug Release RelWithDebInfo MinSizeRel)
endif()

set(CMAKE_CXX_STANDARD "${AGENT_CXX_STANDARD}")
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

# ---- Windows: MSYS2 (MinGW) + windres for the icon --------------------------

if(WIN32)
    if(NOT MINGW)
        message(FATAL_ERROR
            "Windows builds use the MSYS2 UCRT64 (MinGW) toolchain. Run CMake from the "
            "MSYS2 UCRT64 shell, or point it at the toolchain explicitly, e.g.\n"
            "  cmake -B build -G Ninja -DCMAKE_CXX_COMPILER=D:/x64/msys2/ucrt64/bin/g++.exe")
    endif()
    if(NOT CMAKE_RC_COMPILER)
        get_filename_component(_agent_bindir "${CMAKE_CXX_COMPILER}" DIRECTORY)
        if(EXISTS "${_agent_bindir}/windres.exe")
            set(CMAKE_RC_COMPILER "${_agent_bindir}/windres.exe"
                CACHE FILEPATH "Windows resource compiler")
        endif()
    endif()
    enable_language(RC)
endif()

# ---- the application --------------------------------------------------------

add_executable(agent src/agent.cpp)

# ---- 两条已知的编译器噪音 ----------------------------------------------------
# 1) clang 在 C++26 模式下仍把 #embed 当作 C23 扩展来报（-Wc23-extensions），
#    agent-live2d.hpp 里 18 个 #embed 每个报一条。那里是**故意**用 #embed 的：
#    拿不到就整块退化成 kAssetCount = 0（见 build_live2d.py），所以只在 clang 下
#    关这一条，别动别的扩展告警。
# 2) GCC 14 在 -O3 下对 qr.hpp 的 vector 下标误报 -Wstringop-overflow
#    （"writing 1 byte into a region of size 0"，offset [-10, -3]）：VRP 推不出
#    运行期算出来的 size 的下界，属 GCC 已知的假阳性，本机 GCC 16 已不复现。
#    qr.hpp 的正确性由 _scratch/qr_selftest 与 Python qrcode 库逐位对照过，
#    所以这里只关这一条，不关别的 stringop 检查。
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
    target_compile_options(agent PRIVATE -Wno-c23-extensions)
elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
    target_compile_options(agent PRIVATE -Wno-stringop-overflow)
endif()

target_include_directories(agent PRIVATE
    "${CMAKE_SOURCE_DIR}/src"                  # agent-core.hpp, agent-voice.hpp, agent-ui.hpp
    "${CMAKE_SOURCE_DIR}/third_party/include"  # webview/, servic.hpp, router/
    "${CMAKE_SOURCE_DIR}")                     # "cell.cpp/cell.cpp"

# ---- C++23 compatibility shims ----------------------------------------------
# 过渡性补丁，只为 Apple 的 libc++：它既没有 C++23 的 std::generator（P2502R2）
# 也没有 std::move_only_function（P0288R9）—— 系统那份和 Homebrew LLVM 那份都没有
# （查到 LLVM 23）；libstdc++ 从 GCC 14/12 起就有，MSVC 从 19.43/19.32 起就有。
# cell.cpp 两样都要用，所以在标准库给不出的时候把 third_party/compat 挂到 include
# 路径上（和 cell-app 同一套做法、同一份文件）。
#
# 为什么不用 CI 里塞 -isystem：判定应该跟着构建走，不该跟着某个 job 的脚本走 ——
# 本机 cmake 也能得到同样的结果。而且 compat/ 里的头自己会用 #include_next 转发，
# **有真实现就自动让位**，所以这里只决定「目录要不要挂」，不决定「用不用」。
#
# 等 macOS 的 libc++ 补上这两个特性，下面两个 check 都不再命中，这段就自动失效，
# 届时连同 third_party/compat 一起删掉即可。
include(CheckIncludeFileCXX)
include(CheckCXXSourceCompiles)
if(NOT MSVC)
    # 老 CMake 不会把 CMAKE_CXX_STANDARD 带进这些 check，得显式给
    set(_agent_compat_check_flag "-std=c++${AGENT_CXX_STANDARD}")
endif()
check_include_file_cxx("generator" AGENT_HAS_STD_GENERATOR ${_agent_compat_check_flag})
set(CMAKE_REQUIRED_FLAGS "${_agent_compat_check_flag}")
check_cxx_source_compiles("
#include <functional>
int main()
{
    std::move_only_function<void()> probe = [] {};
    probe();
    return probe ? 0 : 1;
}" AGENT_HAS_STD_MOVE_ONLY_FUNCTION)
unset(CMAKE_REQUIRED_FLAGS)
if(NOT AGENT_HAS_STD_GENERATOR OR NOT AGENT_HAS_STD_MOVE_ONLY_FUNCTION)
    message(STATUS "agent: standard library lacks <generator> / std::move_only_function — using third_party/compat")
    target_include_directories(agent SYSTEM BEFORE PRIVATE
        "${CMAKE_SOURCE_DIR}/third_party/compat")
endif()

# ---- platform wiring --------------------------------------------------------

if(NOT WIN32)
    find_package(Threads REQUIRED)
endif()

if(WIN32)   # MSYS2 UCRT64 — WebView2 window

    find_package(PkgConfig REQUIRED)

    # libcurl via pkg-config；静态模式下把传递依赖（zlib/brotli/ssl/ssh2…）一并拉进来，
    # 并用 -DCURL_STATICLIB 让 curl 头文件声明普通符号（否则链接报 __imp_curl_*）。
    pkg_check_modules(CURL REQUIRED libcurl)
    target_include_directories(agent PRIVATE ${CURL_INCLUDE_DIRS})
    if(AGENT_STATIC)
        target_compile_definitions(agent PRIVATE ${CURL_STATIC_CFLAGS_OTHER})
        target_link_options(agent PRIVATE -static)
        set(_agent_curl_libs ${CURL_STATIC_LIBRARIES})
    else()
        set(_agent_curl_libs ${CURL_LIBRARIES})
    endif()

    # crypt32: cell::net 的 CA 解析走 Windows ROOT 证书库（静态 curl 自带的
    # CA 路径是 POSIX 路径，Windows 上必然 curl 60）。
    # winmm: 原生录音（MCI waveaudio）。
    # ole32/shell32/uuid: 托盘 + 原生文件夹选择器。
    target_link_libraries(agent PRIVATE
        ${_agent_curl_libs}
        sodium
        ole32 shell32 shlwapi uuid user32 version advapi32
        gdi32 ws2_32 mswsock bcrypt crypt32 winmm)

    if(AGENT_CONSOLE)
        set_target_properties(agent PROPERTIES WIN32_EXECUTABLE OFF)
    else()
        set_target_properties(agent PROPERTIES WIN32_EXECUTABLE ON)
    endif()

    set(_agent_icon_rc "${CMAKE_SOURCE_DIR}/assets/icon.rc")
    if(EXISTS "${_agent_icon_rc}")
        target_sources(agent PRIVATE "${_agent_icon_rc}")
        set_source_files_properties("${_agent_icon_rc}" PROPERTIES
            INCLUDE_DIRECTORIES "${CMAKE_SOURCE_DIR}/assets")
    else()
        message(WARNING "assets/icon.rc not found — the exe keeps no embedded icon")
    endif()

elseif(APPLE)   # Cocoa + WKWebView

    find_library(SODIUM_LIBRARY NAMES sodium HINTS /opt/homebrew/lib /usr/local/lib REQUIRED)
    find_path(SODIUM_INCLUDE_DIR sodium.h HINTS /opt/homebrew/include /usr/local/include)
    if(SODIUM_INCLUDE_DIR)
        target_include_directories(agent PRIVATE "${SODIUM_INCLUDE_DIR}")
    endif()
    find_path(AGENT_BREW_INCLUDE_DIR boost/asio.hpp HINTS /opt/homebrew/include /usr/local/include)
    if(AGENT_BREW_INCLUDE_DIR)
        target_include_directories(agent PRIVATE "${AGENT_BREW_INCLUDE_DIR}")
    endif()

    target_link_libraries(agent PRIVATE
        "-framework Cocoa" "-framework WebKit" "-framework AudioToolbox"
        curl ${SODIUM_LIBRARY} Threads::Threads)

else()          # Linux — GTK3 + WebKitGTK

    find_package(PkgConfig REQUIRED)
    pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
    pkg_check_modules(WEBKIT IMPORTED_TARGET webkit2gtk-4.1)
    if(NOT WEBKIT_FOUND)
        pkg_check_modules(WEBKIT IMPORTED_TARGET webkit2gtk-4.0)
    endif()
    if(NOT WEBKIT_FOUND)
        message(FATAL_ERROR
            "WebKitGTK development package not found. Install:\n"
            "  webkit2gtk-4.1-dev + libgtk-3-dev  (Debian/Ubuntu)\n"
            "  webkit2gtk4.1-devel + gtk3-devel   (Fedora)")
    endif()

    find_package(CURL REQUIRED)
    find_library(SODIUM_LIBRARY NAMES sodium REQUIRED)

    target_link_libraries(agent PRIVATE
        PkgConfig::GTK PkgConfig::WEBKIT
        CURL::libcurl ${SODIUM_LIBRARY} Threads::Threads)
endif()

# ---- OpenSSL（只有企业微信回调要它：SHA1 验签 + AES-256-CBC 解密）----------
# 不自己实现密码学。Windows / Linux 上静态 libcurl 本就把 libssl/libcrypto 链了
# 进来，这里只是把它的头文件和 target 正式声明一下；找不到就关掉 wecom 这一档，
# 其余 IM 渠道（telegram / onebot / bridge）不受影响。
find_package(OpenSSL QUIET COMPONENTS Crypto)
if(NOT OpenSSL_FOUND AND APPLE)
    find_package(OpenSSL QUIET COMPONENTS Crypto
        HINTS /opt/homebrew/opt/openssl@3 /usr/local/opt/openssl@3)
endif()
if(OpenSSL_FOUND)
    target_compile_definitions(agent PRIVATE AGENT_HAVE_OPENSSL=1)
    target_link_libraries(agent PRIVATE OpenSSL::Crypto)
    message(STATUS "agent: OpenSSL found — WeCom (企业微信) callbacks enabled")
else()
    message(STATUS "agent: OpenSSL not found — the WeCom channel will report itself unavailable")
endif()

# ---- embedded UI ------------------------------------------------------------
# src/ui/src/{index.html,css/*.css,js/*.js}  →  src/agent-ui.hpp（C++ 唯一需要的产物）
#                                              + src/ui/index.html（--ui 开发模式直接服务）
# 声明 agent-ui.hpp 为 OUTPUT，让编译依赖跟着重建；build_ui.py 只在内容变化时写盘。

if(AGENT_BUILD_UI)
    if(DEFINED ENV{PYTHON} AND NOT Python3_EXECUTABLE)
        set(Python3_EXECUTABLE "$ENV{PYTHON}")
    endif()
    find_package(Python3 COMPONENTS Interpreter QUIET)
endif()

if(AGENT_BUILD_UI AND Python3_Interpreter_FOUND)
    file(GLOB_RECURSE AGENT_UI_SOURCES CONFIGURE_DEPENDS "${CMAKE_SOURCE_DIR}/src/ui/src/*")
    set(AGENT_UI_HPP "${CMAKE_SOURCE_DIR}/src/agent-ui.hpp")
    add_custom_command(
        OUTPUT "${AGENT_UI_HPP}"
        BYPRODUCTS "${CMAKE_SOURCE_DIR}/src/ui/index.html"
        COMMAND "${Python3_EXECUTABLE}" "${CMAKE_SOURCE_DIR}/build_ui.py"
        WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
        DEPENDS "${CMAKE_SOURCE_DIR}/build_ui.py" ${AGENT_UI_SOURCES}
        COMMENT "Embedding the UI (src/ui/src → src/agent-ui.hpp)"
        VERBATIM)
    add_custom_target(agent-ui DEPENDS "${AGENT_UI_HPP}")
    add_dependencies(agent agent-ui)
elseif(AGENT_BUILD_UI)
    message(WARNING
        "Python 3 not found — keeping the committed src/agent-ui.hpp. "
        "Pass -DPython3_EXECUTABLE=... or set the PYTHON environment variable.")
endif()

# ---- embedded default stage ------------------------------------------------
# assets/live2d/{runtime,models} → src/agent-live2d.hpp（C++26 #embed 表）
# 启动时写进 <数据根>/live2d/，让「第一次运行就有一个角色」不需要用户准备模型。

if(AGENT_BUILD_UI AND Python3_Interpreter_FOUND)
    file(GLOB_RECURSE AGENT_L2D_ASSETS CONFIGURE_DEPENDS "${CMAKE_SOURCE_DIR}/assets/live2d/*")
    if(AGENT_L2D_ASSETS)
        set(AGENT_L2D_HPP "${CMAKE_SOURCE_DIR}/src/agent-live2d.hpp")
        add_custom_command(
            OUTPUT "${AGENT_L2D_HPP}"
            COMMAND "${Python3_EXECUTABLE}" "${CMAKE_SOURCE_DIR}/build_live2d.py"
            WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
            DEPENDS "${CMAKE_SOURCE_DIR}/build_live2d.py" ${AGENT_L2D_ASSETS}
            COMMENT "Embedding the default Live2D stage (assets/live2d → src/agent-live2d.hpp)"
            VERBATIM)
        add_custom_target(agent-stage DEPENDS "${AGENT_L2D_HPP}")
        add_dependencies(agent agent-stage)
    else()
        message(STATUS "assets/live2d/ is empty — the exe ships without a default model")
    endif()
endif()

# ---- summary ----------------------------------------------------------------

message(STATUS "agent: C++${AGENT_CXX_STANDARD}, executable lands in ${AGENT_OUTPUT_DIR}")