set(SS_DEPENDENCY_MODE "bundled" CACHE STRING "Dependency source: bundled or system")
set_property(CACHE SS_DEPENDENCY_MODE PROPERTY STRINGS bundled system)
set(SS_MATH_LIBRARY "")
if(NOT WIN32)
    set(SS_MATH_LIBRARY m)
endif()
find_package(Threads REQUIRED)
if(SS_DEPENDENCY_MODE STREQUAL "bundled")
    if(NOT WITH_STATIC)
        message(FATAL_ERROR "Bundled mode requires WITH_STATIC=ON; use system mode for shared dependencies")
    endif()
    add_subdirectory(third_party)
    return()
elseif(NOT SS_DEPENDENCY_MODE STREQUAL "system")
    message(FATAL_ERROR "SS_DEPENDENCY_MODE must be bundled or system")
endif()
if(WIN32)
    message(FATAL_ERROR "Windows requires bundled dependencies: the bundled libuv configuration is the validated Windows build")
endif()

# Select one linkage mode consistently for programs, libraries, and tests.
# Never require shared copies in a static dependency build.
if(WITH_STATIC)
    set(_ss_saved_suffixes ${CMAKE_FIND_LIBRARY_SUFFIXES})
    set(CMAKE_FIND_LIBRARY_SUFFIXES .a)
endif()
if(SS_ENABLE_REGEX)
    find_package(PCRE2 REQUIRED)
endif()
find_package(MbedTLS REQUIRED)
find_package(Sodium REQUIRED)
find_package(Cares REQUIRED)
find_path(LIBUV_INCLUDE_DIR uv.h REQUIRED)
find_library(LIBUV_LIBRARY NAMES uv REQUIRED)
find_package(Threads REQUIRED)
if(WITH_STATIC)
    set(CMAKE_FIND_LIBRARY_SUFFIXES ${_ss_saved_suffixes})
endif()

function(ss_import_dependency target location includes)
    add_library(${target} UNKNOWN IMPORTED GLOBAL)
    set_target_properties(${target} PROPERTIES
        IMPORTED_LOCATION "${location}"
        INTERFACE_INCLUDE_DIRECTORIES "${includes}")
endfunction()
ss_import_dependency(ss_sodium "${SODIUM_LIBRARY}" "${SODIUM_INCLUDE_DIRS}")
ss_import_dependency(ss_mbedcrypto "${MBEDTLS_CRYPTO_LIBRARY}" "${MBEDTLS_INCLUDE_DIRS}")
ss_import_dependency(ss_cares "${CARES_LIBRARY}" "${CARES_INCLUDE_DIRS}")
if(SS_ENABLE_REGEX)
    ss_import_dependency(ss_pcre2 "${PCRE2_LIBRARY}" "${PCRE2_INCLUDE_DIRS}")
endif()
ss_import_dependency(ss_uv "${LIBUV_LIBRARY}" "${LIBUV_INCLUDE_DIR}")
include(${PROJECT_SOURCE_DIR}/cmake/EventLoop.cmake)
if(WIN32)
    set_property(TARGET ss_cares APPEND PROPERTY INTERFACE_LINK_LIBRARIES ws2_32 iphlpapi)
    set_property(TARGET ss_ev APPEND PROPERTY INTERFACE_LINK_LIBRARIES ws2_32)
    if(WITH_STATIC)
        set_property(TARGET ss_cares APPEND PROPERTY INTERFACE_COMPILE_DEFINITIONS CARES_STATICLIB)
        if(SS_ENABLE_REGEX)
            set_property(TARGET ss_pcre2 APPEND PROPERTY INTERFACE_COMPILE_DEFINITIONS PCRE2_STATIC)
        endif()
        set_property(TARGET ss_sodium APPEND PROPERTY INTERFACE_COMPILE_DEFINITIONS SODIUM_STATIC)
    endif()
endif()
set(SS_MATH_LIBRARY "")
if(NOT WIN32)
    set(SS_MATH_LIBRARY m)
endif()