#
# ---- Find Squish
# This module can be used to find Squish. Currently Squish versions 3 and 4 are supported.
#
# ---- Variables and Macros
#  SQUISH_FOUND                    If false, don't try to use Squish
#  SQUISH_VERSION                  The full version of Squish found
#  SQUISH_VERSION_MAJOR            The major version of Squish found
#  SQUISH_VERSION_MINOR            The minor version of Squish found
#  SQUISH_VERSION_PATCH            The patch version of Squish found
#
#  SQUISH_INSTALL_DIR              The Squish installation directory (containing bin, lib, etc)
#  SQUISH_SERVER_EXECUTABLE        The squishserver executable
#  SQUISH_CLIENT_EXECUTABLE        The squishrunner executable
#
#  SQUISH_INSTALL_DIR_FOUND        Was the install directory found?
#  SQUISH_SERVER_EXECUTABLE_FOUND  Was the server executable found?
#  SQUISH_CLIENT_EXECUTABLE_FOUND  Was the client executable found?
#
# It provides the function squish_v4_add_test() for adding a squish test to cmake using Squish 4.x:
#
#   squish_v4_add_test(cmakeTestName AUT targetName SUITE suiteName TEST squishTestName
#                   [SETTINGSGROUP group] [PRE_COMMAND command] [POST_COMMAND command] )
#
# The arguments have the following meaning:
#   cmakeTestName: this will be used as the first argument for add_test()
#   AUT targetName: the name of the cmake target which will be used as AUT, i.e. the
#                   executable which will be tested.
#   SUITE suiteName: this is either the full path to the squish suite, or just the
#                    last directory of the suite, i.e. the suite name. In this case
#                    the CMakeLists.txt which calls squish_add_test() must be located
#                    in the parent directory of the suite directory.
#   TEST squishTestName: the name of the squish test, i.e. the name of the subdirectory
#                        of the test inside the suite directory.
#   SETTINGSGROUP group: if specified, the given settings group will be used for executing the test.
#                        If not specified, the groupname will be "CTest_<username>"
#   PRE_COMMAND command:  if specified, the given command will be executed before starting the squish test.
#   POST_COMMAND command: same as PRE_COMMAND, but after the squish test has been executed.
#
# ---- Typical Use
#   enable_testing()
#   find_package(Squish 4.0)
#   if (SQUISH_FOUND)
#      squish_v4_add_test(myTestName AUT myApp SUITE ${CMAKE_SOURCE_DIR}/tests/mySuite TEST someSquishTest SETTINGSGROUP myGroup )
#   endif ()
#
#
# For users of Squish version 3.x the macro squish_v3_add_test() is provided:
#   squish_v3_add_test(testName applicationUnderTest testCase envVars testWrapper)
#   Use this macro to add a test using Squish 3.x.
#
# ---- Typical Use
#  enable_testing()
#  find_package(Squish)
#  if (SQUISH_FOUND)
#    squish_v3_add_test(myTestName myApplication testCase envVars testWrapper)
#  endif ()
#
# macro SQUISH_ADD_TEST(testName applicationUnderTest testCase envVars testWrapper)
#   This is deprecated. Use SQUISH_V3_ADD_TEST() if you are using Squish 3.x instead.


#=============================================================================
# Copyright 2008-2009 Kitware, Inc.
# Copyright 2012 Alexander Neundorf
#
# 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 distribute this file outside of CMake, substitute the full
#  License text for the above reference.)


include(CMakeParseArguments)

set(SQUISH_INSTALL_DIR_STRING "Directory containing the bin, doc, and lib directories for Squish; this should be the root of the installation directory.")
set(SQUISH_SERVER_EXECUTABLE_STRING "The squishserver executable program.")
set(SQUISH_CLIENT_EXECUTABLE_STRING "The squishclient executable program.")

# Search only if the location is not already known.
if(NOT SQUISH_INSTALL_DIR)
  # Get the system search path as a list.
  file(TO_CMAKE_PATH "$ENV{PATH}" SQUISH_INSTALL_DIR_SEARCH2)

  # Construct a set of paths relative to the system search path.
  set(SQUISH_INSTALL_DIR_SEARCH "")
  foreach(dir ${SQUISH_INSTALL_DIR_SEARCH2})
    set(SQUISH_INSTALL_DIR_SEARCH ${SQUISH_INSTALL_DIR_SEARCH} "${dir}/../lib/fltk")
  endforeach()
  string(REPLACE "//" "/" SQUISH_INSTALL_DIR_SEARCH "${SQUISH_INSTALL_DIR_SEARCH}")

  # Look for an installation
  find_path(SQUISH_INSTALL_DIR bin/squishrunner
    HINTS
    # Look for an environment variable SQUISH_INSTALL_DIR.
      ENV SQUISH_INSTALL_DIR

    # Look in places relative to the system executable search path.
    ${SQUISH_INSTALL_DIR_SEARCH}

    # Look in standard UNIX install locations.
    #/usr/local/squish

    DOC "The ${SQUISH_INSTALL_DIR_STRING}"
    )
endif()

# search for the executables
if(SQUISH_INSTALL_DIR)
  set(SQUISH_INSTALL_DIR_FOUND 1)

  # find the client program
  if(NOT SQUISH_CLIENT_EXECUTABLE)
    find_program(SQUISH_CLIENT_EXECUTABLE ${SQUISH_INSTALL_DIR}/bin/squishrunner${CMAKE_EXECUTABLE_SUFFIX} DOC "The ${SQUISH_CLIENT_EXECUTABLE_STRING}")
  endif()

  # find the server program
  if(NOT SQUISH_SERVER_EXECUTABLE)
    find_program(SQUISH_SERVER_EXECUTABLE ${SQUISH_INSTALL_DIR}/bin/squishserver${CMAKE_EXECUTABLE_SUFFIX} DOC "The ${SQUISH_SERVER_EXECUTABLE_STRING}")
  endif()

else()
  set(SQUISH_INSTALL_DIR_FOUND 0)
endif()


set(SQUISH_VERSION)
set(SQUISH_VERSION_MAJOR )
set(SQUISH_VERSION_MINOR )
set(SQUISH_VERSION_PATCH )

# record if executables are set
if(SQUISH_CLIENT_EXECUTABLE)
  set(SQUISH_CLIENT_EXECUTABLE_FOUND 1)
  execute_process(COMMAND "${SQUISH_CLIENT_EXECUTABLE}" --version
                  OUTPUT_VARIABLE _squishVersionOutput
                  ERROR_QUIET )
  if("${_squishVersionOutput}" MATCHES "([0-9]+)\\.([0-9]+)\\.([0-9]+).*$")
    set(SQUISH_VERSION_MAJOR "${CMAKE_MATCH_1}")
    set(SQUISH_VERSION_MINOR "${CMAKE_MATCH_2}")
    set(SQUISH_VERSION_PATCH "${CMAKE_MATCH_3}")
    set(SQUISH_VERSION "${SQUISH_VERSION_MAJOR}.${SQUISH_VERSION_MINOR}.${SQUISH_VERSION_PATCH}" )
  endif()
else()
  set(SQUISH_CLIENT_EXECUTABLE_FOUND 0)
endif()

if(SQUISH_SERVER_EXECUTABLE)
  set(SQUISH_SERVER_EXECUTABLE_FOUND 1)
else()
  set(SQUISH_SERVER_EXECUTABLE_FOUND 0)
endif()

# record if Squish was found
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Squish  REQUIRED_VARS  SQUISH_INSTALL_DIR SQUISH_CLIENT_EXECUTABLE SQUISH_SERVER_EXECUTABLE
                                          VERSION_VAR  SQUISH_VERSION )


set(_SQUISH_MODULE_DIR "${CMAKE_CURRENT_LIST_DIR}")

macro(SQUISH_V3_ADD_TEST testName testAUT testCase envVars testWraper)
  if("${SQUISH_VERSION_MAJOR}" STREQUAL "4")
    message(STATUS "Using squish_v3_add_test(), but SQUISH_VERSION_MAJOR is ${SQUISH_VERSION_MAJOR}.\nThis may not work.")
  endif()

  add_test(${testName}
    ${CMAKE_COMMAND} -V -VV
    "-Dsquish_version:STRING=3"
    "-Dsquish_aut:STRING=${testAUT}"
    "-Dsquish_server_executable:STRING=${SQUISH_SERVER_EXECUTABLE}"
    "-Dsquish_client_executable:STRING=${SQUISH_CLIENT_EXECUTABLE}"
    "-Dsquish_libqtdir:STRING=${QT_LIBRARY_DIR}"
    "-Dsquish_test_case:STRING=${testCase}"
    "-Dsquish_env_vars:STRING=${envVars}"
    "-Dsquish_wrapper:STRING=${testWraper}"
    "-Dsquish_module_dir:STRING=${_SQUISH_MODULE_DIR}"
    -P "${_SQUISH_MODULE_DIR}/SquishTestScript.cmake"
    )
  set_tests_properties(${testName}
    PROPERTIES FAIL_REGULAR_EXPRESSION "FAILED;ERROR;FATAL"
    )
endmacro()


macro(SQUISH_ADD_TEST)
  message(STATUS "Using squish_add_test() is deprecated, use squish_v3_add_test() instead.")
  squish_v3_add_test(${ARGV})
endmacro()


function(SQUISH_V4_ADD_TEST testName)

  if(NOT "${SQUISH_VERSION_MAJOR}" STREQUAL "4")
    message(STATUS "Using squish_v4_add_test(), but SQUISH_VERSION_MAJOR is ${SQUISH_VERSION_MAJOR}.\nThis may not work.")
  endif()

  set(oneValueArgs AUT SUITE TEST SETTINGSGROUP PRE_COMMAND POST_COMMAND)

  cmake_parse_arguments(_SQUISH "" "${oneValueArgs}" "" ${ARGN} )

  if(_SQUISH_UNPARSED_ARGUMENTS)
    message(FATAL_ERROR "Unknown keywords given to SQUISH_ADD_TEST(): \"${_SQUISH_UNPARSED_ARGUMENTS}\"")
  endif()

  if(NOT _SQUISH_AUT)
    message(FATAL_ERROR "Required argument AUT not given for SQUISH_ADD_TEST()")
  endif()

  if(NOT _SQUISH_SUITE)
    message(FATAL_ERROR "Required argument SUITE not given for SQUISH_ADD_TEST()")
  endif()

  if(NOT _SQUISH_TEST)
    message(FATAL_ERROR "Required argument TEST not given for SQUISH_ADD_TEST()")
  endif()

  get_target_property(testAUTLocation ${_SQUISH_AUT} LOCATION)
  get_filename_component(testAUTDir ${testAUTLocation} PATH)
  get_filename_component(testAUTName ${testAUTLocation} NAME)

  get_filename_component(absTestSuite "${_SQUISH_SUITE}" ABSOLUTE)
  if(NOT EXISTS "${absTestSuite}")
    message(FATAL_ERROR "Could not find squish test suite ${_SQUISH_SUITE} (checked ${absTestSuite})")
  endif()

  set(absTestCase "${absTestSuite}/${_SQUISH_TEST}")
  if(NOT EXISTS "${absTestCase}")
    message(FATAL_ERROR "Could not find squish testcase ${_SQUISH_TEST} (checked ${absTestCase})")
  endif()

  if(NOT _SQUISH_SETTINGSGROUP)
    set(_SQUISH_SETTINGSGROUP "CTest_$ENV{LOGNAME}")
  endif()

  add_test(${testName}
    ${CMAKE_COMMAND} -V -VV
    "-Dsquish_version:STRING=4"
    "-Dsquish_aut:STRING=${testAUTName}"
    "-Dsquish_aut_dir:STRING=${testAUTDir}"
    "-Dsquish_server_executable:STRING=${SQUISH_SERVER_EXECUTABLE}"
    "-Dsquish_client_executable:STRING=${SQUISH_CLIENT_EXECUTABLE}"
    "-Dsquish_libqtdir:STRING=${QT_LIBRARY_DIR}"
    "-Dsquish_test_suite:STRING=${absTestSuite}"
    "-Dsquish_test_case:STRING=${_SQUISH_TEST}"
    "-Dsquish_env_vars:STRING=${envVars}"
    "-Dsquish_wrapper:STRING=${testWraper}"
    "-Dsquish_module_dir:STRING=${_SQUISH_MODULE_DIR}"
    "-Dsquish_settingsgroup:STRING=${_SQUISH_SETTINGSGROUP}"
    "-Dsquish_pre_command:STRING=${_SQUISH_PRE_COMMAND}"
    "-Dsquish_post_command:STRING=${_SQUISH_POST_COMMAND}"
    -P "${_SQUISH_MODULE_DIR}/SquishTestScript.cmake"
    )
  set_tests_properties(${testName}
    PROPERTIES FAIL_REGULAR_EXPRESSION "FAIL;FAILED;ERROR;FATAL"
    )
endfunction()