cmake_minimum_required(VERSION 3.16)

project(XNSignature LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

# 获取环境变量
if(DEFINED ENV{XNCore})
    set(XNCore_PATH $ENV{XNCore})
else()
    message(FATAL_ERROR "Environment variable XNCore is not set.")
endif()

# 查找依赖包
find_package(OpenSSL REQUIRED)

if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
    set(CMAKE_INSTALL_PREFIX "${XNCore_PATH}" CACHE PATH "Install path prefix" FORCE)
endif()

include(GNUInstallDirs)

# 生成密钥对的可执行程序
add_executable(XNSignatureKeygen keygen.cpp)
target_link_libraries(XNSignatureKeygen PRIVATE OpenSSL::SSL OpenSSL::Crypto)

# 签名的可执行程序
add_executable(XNSignatureSign sign.cpp)
target_link_libraries(XNSignatureSign PRIVATE OpenSSL::SSL OpenSSL::Crypto)

# 验证签名的动态库
add_library(XNSignatureVerify SHARED
    XNSignature_global.h
    XNSignatureVerify.h
    verify.cpp
)

target_include_directories(XNSignatureVerify PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
target_link_libraries(XNSignatureVerify PRIVATE OpenSSL::SSL OpenSSL::Crypto)
target_compile_definitions(XNSignatureVerify PRIVATE XNSIGNATURE_LIBRARY XNSIGNATURE_EXPORTS)

# 验证库测试程序
add_executable(test_verify test_verify.cpp)
target_link_libraries(test_verify PRIVATE XNSignatureVerify)
target_compile_definitions(test_verify PRIVATE XNSIGNATURE_EXPORTS)

# 完整性检测测试程序
add_executable(test_integrity test_integrity.cpp)
target_link_libraries(test_integrity PRIVATE XNSignatureVerify)
target_compile_definitions(test_integrity PRIVATE XNSIGNATURE_EXPORTS)

# 安装配置 - 只安装动态库
install(TARGETS XNSignatureVerify
    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
)