# /****************************************************************************
#  * <Novell-copyright>
#  * Copyright (c) 2001 Novell, Inc. All Rights Reserved.
#  *
#  * This program is free software; you can redistribute it and/or
#  * modify it under the terms of version 2 of the GNU General Public License
#  * as published by the Free Software Foundation.
#  *
#  * This program is distributed in the hope that it will be useful,
#  * but WITHOUT ANY WARRANTY; without even the implied warranty of
#  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  * GNU General Public License for more details.
#  *
#  * You should have received a copy of the GNU General Public License
#  * along with this program; if not, contact Novell, Inc.
#  *
#  * To contact Novell about this file by physical or electronic mail, you
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#  * </Novell-copyright>
#  ****************************************************************************/

if(NOT CMAKE_CROSSCOMPILING)
  find_package(LibIcal CONFIG QUIET NO_MODULE)
endif()

if(LibIcal_FOUND AND TARGET ical)
  if(NOT TARGET LibIcal::ical)
    add_library(LibIcal::ical ALIAS ical)
  endif()
  if(NOT LibIcal_INCLUDE_DIR)
    get_target_property(LibIcal_INCLUDE_DIR ical INTERFACE_INCLUDE_DIRECTORIES)
  endif()
  return()
endif()

find_path(LibIcal_INCLUDE_DIR NAMES libical/ical.h ical.h)
find_library(LibIcal_LIBRARY NAMES ical)

if(LibIcal_INCLUDE_DIR)
  if(EXISTS "${LibIcal_INCLUDE_DIR}/libical/ical.h")
    set(_LibIcal_VERSION_HEADER "${LibIcal_INCLUDE_DIR}/libical/ical.h")
  else()
    set(_LibIcal_VERSION_HEADER "${LibIcal_INCLUDE_DIR}/ical.h")
  endif()
  file(STRINGS "${_LibIcal_VERSION_HEADER}" _LibIcal_VERSION_LINES
    REGEX "^#define ICAL_(MAJOR|MINOR|PATCH)_VERSION[ \t]+\\([0-9]+\\)")
  foreach(_component MAJOR MINOR PATCH)
    string(REGEX MATCH "ICAL_${_component}_VERSION[ \t]+\\(([0-9]+)\\)"
      _LibIcal_VERSION_MATCH "${_LibIcal_VERSION_LINES}")
    set(_LibIcal_VERSION_${_component} "${CMAKE_MATCH_1}")
  endforeach()
  if(DEFINED _LibIcal_VERSION_MAJOR AND DEFINED _LibIcal_VERSION_MINOR AND
     DEFINED _LibIcal_VERSION_PATCH)
    set(LibIcal_VERSION
      "${_LibIcal_VERSION_MAJOR}.${_LibIcal_VERSION_MINOR}.${_LibIcal_VERSION_PATCH}")
  endif()
endif()

include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(LibIcal
  REQUIRED_VARS LibIcal_LIBRARY LibIcal_INCLUDE_DIR
  VERSION_VAR LibIcal_VERSION)

if(LibIcal_FOUND AND NOT TARGET LibIcal::ical)
  add_library(LibIcal::ical UNKNOWN IMPORTED)
  set_target_properties(LibIcal::ical PROPERTIES
    IMPORTED_LOCATION "${LibIcal_LIBRARY}"
    INTERFACE_INCLUDE_DIRECTORIES "${LibIcal_INCLUDE_DIR}")
endif()

mark_as_advanced(LibIcal_INCLUDE_DIR LibIcal_LIBRARY)