# FindSpdlog
# -------
# Finds the Spdlog library
#
# This will define the following variables:
#
# SPDLOG_FOUND - system has Spdlog
# SPDLOG_INCLUDE_DIRS - the Spdlog include directory
# SPDLOG_LIBRARIES - the Spdlog libraries
# SPDLOG_DEFINITIONS - the Spdlog compile definitions
#
# and the following imported targets:
#
#   Spdlog::Spdlog   - The Spdlog library

if(ENABLE_INTERNAL_SPDLOG)
  include(cmake/scripts/common/ModuleHelpers.cmake)

  # Check for dependencies - Must be done before SETUP_BUILD_VARS
  get_libversion_data("fmt" "target")
  find_package(Fmt ${LIB_FMT_VER} MODULE REQUIRED)

  # Check if we want to force a build due to a dependency rebuild
  get_property(LIB_FORCE_REBUILD TARGET fmt::fmt PROPERTY LIB_BUILD)

  set(MODULE_LC spdlog)
  SETUP_BUILD_VARS()

  # Check for existing SPDLOG. If version >= SPDLOG-VERSION file version, dont build
  find_package(SPDLOG CONFIG QUIET)

  if(SPDLOG_VERSION VERSION_LESS ${${MODULE}_VER} OR LIB_FORCE_REBUILD)
    if(APPLE)
      set(EXTRA_ARGS "-DCMAKE_OSX_ARCHITECTURES=${CMAKE_OSX_ARCHITECTURES}")
    endif()

    if(WIN32 OR WINDOWS_STORE)
      set(patches "${CMAKE_SOURCE_DIR}/tools/depends/target/${MODULE_LC}/001-windows-pdb-symbol-gen.patch")
      generate_patchcommand("${patches}")

      set(EXTRA_ARGS -DSPDLOG_WCHAR_SUPPORT=ON
                     -DSPDLOG_WCHAR_FILENAMES=ON)

    endif()

    set(SPDLOG_VERSION ${${MODULE}_VER})
    # spdlog debug uses postfix d for all platforms
    set(SPDLOG_DEBUG_POSTFIX d)

    set(CMAKE_ARGS -DCMAKE_CXX_EXTENSIONS=${CMAKE_CXX_EXTENSIONS}
                   -DCMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD}
                   -DSPDLOG_BUILD_EXAMPLE=OFF
                   -DSPDLOG_BUILD_TESTS=OFF
                   -DSPDLOG_BUILD_BENCH=OFF
                   -DSPDLOG_FMT_EXTERNAL=ON
                   ${EXTRA_ARGS})

    BUILD_DEP_TARGET()

    add_dependencies(${MODULE_LC} fmt::fmt)
  else()
    # Populate paths for find_package_handle_standard_args
    find_path(SPDLOG_INCLUDE_DIR NAMES spdlog/spdlog.h)
    find_library(SPDLOG_LIBRARY_RELEASE NAMES spdlog)
    find_library(SPDLOG_LIBRARY_DEBUG NAMES spdlogd)
  endif()
else()
  find_package(spdlog 1.5.0 CONFIG REQUIRED QUIET)

  if(PKG_CONFIG_FOUND)
    pkg_check_modules(PC_SPDLOG spdlog QUIET)
    set(SPDLOG_VERSION ${PC_SPDLOG_VERSION})
  endif()

  find_path(SPDLOG_INCLUDE_DIR NAMES spdlog/spdlog.h
                               PATHS ${PC_SPDLOG_INCLUDEDIR})

  find_library(SPDLOG_LIBRARY_RELEASE NAMES spdlog
                                      PATHS ${PC_SPDLOG_LIBDIR})
  find_library(SPDLOG_LIBRARY_DEBUG NAMES spdlogd
                                    PATHS ${PC_SPDLOG_LIBDIR})
endif()

include(SelectLibraryConfigurations)
select_library_configurations(SPDLOG)

include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Spdlog
                                  REQUIRED_VARS SPDLOG_LIBRARY SPDLOG_INCLUDE_DIR
                                  VERSION_VAR SPDLOG_VERSION)

if(SPDLOG_FOUND)
  set(SPDLOG_LIBRARIES ${SPDLOG_LIBRARY})
  set(SPDLOG_INCLUDE_DIRS ${SPDLOG_INCLUDE_DIR})
  set(SPDLOG_DEFINITIONS -DSPDLOG_FMT_EXTERNAL
                         -DSPDLOG_DEBUG_ON
                         -DSPDLOG_NO_ATOMIC_LEVELS
                         -DSPDLOG_ENABLE_PATTERN_PADDING
                         -DSPDLOG_COMPILED_LIB
                         ${PC_SPDLOG_CFLAGS})
  if(WIN32)
    list(APPEND SPDLOG_DEFINITIONS -DSPDLOG_WCHAR_FILENAMES
                                   -DSPDLOG_WCHAR_TO_UTF8_SUPPORT)
  endif()

  if(NOT TARGET spdlog::spdlog)
    add_library(spdlog::spdlog UNKNOWN IMPORTED)
    if(SPDLOG_LIBRARY_RELEASE)
      set_target_properties(spdlog::spdlog PROPERTIES
                                           IMPORTED_CONFIGURATIONS RELEASE
                                           IMPORTED_LOCATION "${SPDLOG_LIBRARY_RELEASE}")
    endif()
    if(SPDLOG_LIBRARY_DEBUG)
      set_target_properties(spdlog::spdlog PROPERTIES
                                           IMPORTED_CONFIGURATIONS DEBUG
                                           IMPORTED_LOCATION "${SPDLOG_LIBRARY_DEBUG}")
    endif()
    set_target_properties(spdlog::spdlog PROPERTIES
                                         INTERFACE_INCLUDE_DIRECTORIES "${SPDLOG_INCLUDE_DIR}"
                                         INTERFACE_COMPILE_DEFINITIONS "${SPDLOG_DEFINITIONS}")
  endif()
  if(TARGET spdlog)
    add_dependencies(spdlog::spdlog spdlog)
  endif()
  set_property(GLOBAL APPEND PROPERTY INTERNAL_DEPS_PROP spdlog::spdlog)
endif()

mark_as_advanced(SPDLOG_INCLUDE_DIR SPDLOG_LIBRARY)