# Locate miniupnp library
# This module defines
#  MINIUPNP_FOUND, if false, do not try to link to miniupnp
#  MINIUPNP_LIBRARY, the miniupnp variant
#  MINIUPNP_INCLUDE_DIR, where to find miniupnpc.h and family)
#  MINIUPNPC_VERSION_PRE1_6 --> set if we detect the version of miniupnpc is
#                               pre 1.6
#  MINIUPNPC_VERSION_PRE1_5 --> set if we detect the version of miniupnpc is
#                               pre 1.5
#
# Note that the expected include convention is
#  #include "miniupnpc.h"
# and not
#  #include <miniupnpc/miniupnpc.h>
# This is because, the miniupnpc location is not standardized and may exist
# in locations other than miniupnpc/

#=============================================================================
# Copyright 2011 Mark Vejvoda
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distributed this file outside of CMake, substitute the full
#  License text for the above reference.)

message(STATUS "Looking for miniupnpc...")

if (MINIUPNP_INCLUDE_DIR AND MINIUPNP_LIBRARY)
  # Already in cache, be silent
  set(MINIUPNP_FIND_QUIETLY TRUE)
endif (MINIUPNP_INCLUDE_DIR AND MINIUPNP_LIBRARY)

SET(MINIUPNPC_DIR_SEARCH $ENV{MINIUPNPC_ROOT})

#find_path(MINIUPNP_INCLUDE_DIR miniupnpc.h
#   PATH_SUFFIXES miniupnpc)

FIND_PATH(MINIUPNP_INCLUDE_DIR miniupnpc.h
  PATHS ${MINIUPNPC_DIR_SEARCH}/include
  /usr/include
  /usr/local/include
  PATH_SUFFIXES miniupnpc)

#message(STATUS "Finding miniupnpc.h result: ${MINIUPNP_INCLUDE_DIR}")

#find_library(MINIUPNP_LIBRARY miniupnpc)
set(MINIUPNPC_LIBRARY_NAMES ${MINIUPNPC_LIBRARY_DYNAMIC_NAME} libminiupnpc miniupnpc)

IF(STATIC_Miniupnpc)
  set(MINIUPNPC_LIBRARY_NAMES ${MINIUPNPC_LIBRARY_STATIC_NAME} libminiupnpc.a miniupnpc.a ${MINIUPNPC_LIBRARY_NAMES})
ENDIF()

FIND_LIBRARY(MINIUPNP_LIBRARY NAMES ${MINIUPNPC_LIBRARY_NAMES})

#message(STATUS "Finding miniupnpc lib result: ${MINIUPNP_LIBRARY}")

include(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(MINIUPNP REQUIRED_VARS MINIUPNP_LIBRARY MINIUPNP_INCLUDE_DIR)

if (MINIUPNP_FOUND)
  if (NOT MINIUPNP_FIND_QUIETLY)
    #message (STATUS "Found the miniupnpc libraries at ${MINIUPNP_LIBRARY}")
    message (STATUS "Found the miniupnpc headers at ${MINIUPNP_INCLUDE_DIR}")
  endif (NOT MINIUPNP_FIND_QUIETLY)

  #message(STATUS "Detecting version of miniupnpc in path: ${MINIUPNP_INCLUDE_DIR}")

  set(CMAKE_REQUIRED_INCLUDES ${MINIUPNP_INCLUDE_DIR})
  set(CMAKE_REQUIRED_LIBRARIES ${MINIUPNP_LIBRARY})
  check_cxx_source_runs("
    #include <miniwget.h>
    #include <miniupnpc.h>
    #include <upnpcommands.h>
    #include <stdio.h>
    int main()
    {
        static struct UPNPUrls urls;
        static struct IGDdatas data;
        int compileTest = 1;
        if(compileTest == 0) GetUPNPUrls (&urls, &data, \"myurl\",0);

        return 0;
    }"
   MINIUPNPC_VERSION_1_7_OR_HIGHER)

  IF (NOT MINIUPNPC_VERSION_1_7_OR_HIGHER)
          set(CMAKE_REQUIRED_INCLUDES ${MINIUPNP_INCLUDE_DIR})
          set(CMAKE_REQUIRED_LIBRARIES ${MINIUPNP_LIBRARY})
          check_cxx_source_runs("
            #include <miniwget.h>
            #include <miniupnpc.h>
            #include <upnpcommands.h>
            #include <stdio.h>
            int main()
            {
                struct UPNPDev *devlist = NULL;
	        int upnp_delay = 1;
	        const char *upnp_multicastif = NULL;
	        const char *upnp_minissdpdsock = NULL;
	        int upnp_sameport = 0;
	        int upnp_ipv6 = 0;
	        int upnp_error = 0;
                int compileTest = 1;
	        if(compileTest == 0) devlist = upnpDiscover(upnp_delay, upnp_multicastif, upnp_minissdpdsock, upnp_sameport, upnp_ipv6, &upnp_error);

                return 0;
            }"
           MINIUPNPC_VERSION_PRE1_7)
   ENDIF()
 
   IF (NOT MINIUPNPC_VERSION_PRE1_7 AND NOT MINIUPNPC_VERSION_1_7_OR_HIGHER)
          set(CMAKE_REQUIRED_INCLUDES ${MINIUPNP_INCLUDE_DIR})
          set(CMAKE_REQUIRED_LIBRARIES ${MINIUPNP_LIBRARY})
          check_cxx_source_runs("
            #include <miniwget.h>
            #include <miniupnpc.h>
            #include <upnpcommands.h>
            #include <stdio.h>
            int main()
            {
                struct UPNPDev *devlist = NULL;
	        int upnp_delay = 1;
	        const char *upnp_multicastif = NULL;
	        const char *upnp_minissdpdsock = NULL;
	        int upnp_sameport = 0;
	        int upnp_ipv6 = 0;
	        int upnp_error = 0;
                int compileTest = 1;
	        if(compileTest == 0) devlist = upnpDiscover(upnp_delay, upnp_multicastif, upnp_minissdpdsock, upnp_sameport);

                return 0;
            }"
            MINIUPNPC_VERSION_PRE1_6)

   ENDIF()

   IF (NOT MINIUPNPC_VERSION_PRE1_6 AND NOT MINIUPNPC_VERSION_PRE1_7 AND NOT MINIUPNPC_VERSION_1_7_OR_HIGHER)
           set(CMAKE_REQUIRED_INCLUDES ${MINIUPNP_INCLUDE_DIR})
           set(CMAKE_REQUIRED_LIBRARIES ${MINIUPNP_LIBRARY})
           check_cxx_source_runs("
            #include <miniwget.h>
            #include <miniupnpc.h>
            #include <upnpcommands.h>
            #include <stdio.h>
            static struct UPNPUrls urls;
            static struct IGDdatas data;
            int main()
            {
                char externalIP[16]     = \"\";
                int compileTest = 1;
	        if(compileTest == 0) UPNP_GetExternalIPAddress(urls.controlURL, data.first.servicetype, externalIP);

                return 0;
            }"
            MINIUPNPC_VERSION_1_5_OR_HIGHER)
    ENDIF()

    IF (NOT MINIUPNPC_VERSION_1_5_OR_HIGHER AND NOT MINIUPNPC_VERSION_PRE1_6 AND NOT MINIUPNPC_VERSION_PRE1_7 AND NOT MINIUPNPC_VERSION_1_7_OR_HIGHER)
         set(CMAKE_REQUIRED_INCLUDES ${MINIUPNP_INCLUDE_DIR})
         set(CMAKE_REQUIRED_LIBRARIES ${MINIUPNP_LIBRARY})
         check_cxx_source_runs("
            #include <miniwget.h>
            #include <miniupnpc.h>
            #include <upnpcommands.h>
            #include <stdio.h>
            static struct UPNPUrls urls;
            static struct IGDdatas data;
            int main()
            {
                char externalIP[16]     = \"\";
                int compileTest = 1;
	        if(compileTest == 0) UPNP_GetExternalIPAddress(urls.controlURL, data.servicetype, externalIP);

                return 0;
            }"
            MINIUPNPC_VERSION_PRE1_5)

    ENDIF()

    IF(MINIUPNPC_VERSION_PRE1_5)
	message(STATUS "Found miniupnpc version is pre v1.5")
    ENDIF()
    IF(MINIUPNPC_VERSION_PRE1_6)
	message(STATUS "Found miniupnpc version is pre v1.6")
    ENDIF()
    IF(MINIUPNPC_VERSION_PRE1_7)
	message(STATUS "Found miniupnpc version is pre v1.7")
    ENDIF()

    IF(NOT MINIUPNPC_VERSION_PRE1_5 AND NOT MINIUPNPC_VERSION_PRE1_6 AND NOT MINIUPNPC_VERSION_PRE1_7)
	message(STATUS "Found miniupnpc version is v1.7 or higher")
    ENDIF()

else ()
    message (STATUS "Could not find miniupnp")
endif ()

MARK_AS_ADVANCED(MINIUPNP_INCLUDE_DIR MINIUPNP_LIBRARY)