cmake_minimum_required(VERSION 3.16)
project(VizumCameraKit CXX)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

set(VIZUMKIT_EXTERNAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/external")
set(VIZUMKIT_VZNLSDK_DIR
    "E:/02_Modules/10_Projects/Active/GrabBag/Device/SDK/VzNLSDK"
    CACHE PATH "Shared VzNL SDK root")

if(NOT WIN32 OR NOT CMAKE_SIZEOF_VOID_P EQUAL 8)
    message(FATAL_ERROR "VizumCameraKit currently requires the Windows x64 VzNL SDK")
endif()

set(VIZUMKIT_VZNL_INCLUDE_DIR "${VIZUMKIT_VZNLSDK_DIR}/Inc")
set(VIZUMKIT_VZNL_RELEASE_DIR "${VIZUMKIT_VZNLSDK_DIR}/Windows/x64/Release")
if(NOT EXISTS "${VIZUMKIT_VZNL_INCLUDE_DIR}/VZNL_Common.h"
   OR NOT EXISTS "${VIZUMKIT_VZNL_RELEASE_DIR}/VzKernel.dll")
    message(FATAL_ERROR "VzNL SDK 3.6.20.116 not found under ${VIZUMKIT_VZNLSDK_DIR}")
endif()

# SDK 根目录切换后必须丢弃 find_library 遗留的旧绝对路径缓存。
unset(VIZUMKIT_VZNL_DETECT_LIB CACHE)
unset(VIZUMKIT_VZNL_GRAPHICS_LIB CACHE)

# ---- VzNL SDK 3.6.20.116 Windows x64 库 ----
find_library(VIZUMKIT_VZNL_DETECT_LIB
    NAMES VzNLDetect
    PATHS "${VIZUMKIT_VZNL_RELEASE_DIR}"
    NO_DEFAULT_PATH)
find_library(VIZUMKIT_VZNL_GRAPHICS_LIB
    NAMES VzNLGraphics
    PATHS "${VIZUMKIT_VZNL_RELEASE_DIR}"
    NO_DEFAULT_PATH)
if(NOT VIZUMKIT_VZNL_DETECT_LIB OR NOT VIZUMKIT_VZNL_GRAPHICS_LIB)
    message(FATAL_ERROR "Cannot find VzNL SDK libraries under ${VIZUMKIT_VZNL_RELEASE_DIR}")
endif()

# ---- 静态库目标 ----
add_library(VizumCameraKit STATIC src/VizumCamera.cpp)

target_include_directories(VizumCameraKit PUBLIC
    "${CMAKE_CURRENT_SOURCE_DIR}/src"
    "${VIZUMKIT_EXTERNAL_DIR}"                # <spdlog/spdlog.h>
    "${VIZUMKIT_VZNL_INCLUDE_DIR}")

target_compile_definitions(VizumCameraKit PUBLIC ENABLE_VIZUM_CAMERA)

target_link_libraries(VizumCameraKit PUBLIC
    ${VIZUMKIT_VZNL_DETECT_LIB}
    ${VIZUMKIT_VZNL_GRAPHICS_LIB})

if(MSVC)
    target_compile_options(VizumCameraKit PRIVATE /utf-8)
endif()

# 运行时 DLL 目录,供使用方 POST_BUILD 拷贝(严禁手动拷 DLL)。FORCE 清除旧 SDK 缓存路径。
set(VIZUMKIT_DLL_DIR "${VIZUMKIT_VZNL_RELEASE_DIR}"
    CACHE PATH "VzNL runtime DLL directory for consumers to copy from" FORCE)

# ---- 冒烟测试(无相机也可运行:扫描并打印设备数) ----
option(VIZUMKIT_BUILD_EXAMPLES "Build kit_smoke example" ON)
if(VIZUMKIT_BUILD_EXAMPLES)
    add_executable(kit_smoke examples/kit_smoke.cpp)
    target_link_libraries(kit_smoke PRIVATE VizumCameraKit)
    if(MSVC)
        target_compile_options(kit_smoke PRIVATE /utf-8)
    endif()
    file(GLOB VIZUMKIT_RUNTIME_DLLS "${VIZUMKIT_DLL_DIR}/*.dll")
    add_custom_command(TARGET kit_smoke POST_BUILD
        COMMAND ${CMAKE_COMMAND} -E copy_if_different
            ${VIZUMKIT_RUNTIME_DLLS}
            "$<TARGET_FILE_DIR:kit_smoke>"
        COMMENT "拷贝 VzNL 运行时 DLL 到输出目录")
endif()