#
# Copyright (C) 2005-2019 Centre National d'Etudes Spatiales (CNES)
#
# This file is part of Orfeo Toolbox
#
#     https://www.orfeo-toolbox.org/
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
if(NOT SRC_DIR)
  message(FATAL_ERROR "SRC_DIR is not set")
endif()

set(PKG_DIR)
get_filename_component(PKG_DIR ${CMAKE_CURRENT_LIST_DIR} PATH)
set(TEST_DIR ${PKG_DIR}/ex_build)

if(EXISTS "${TEST_DIR}")
  execute_process(COMMAND ${CMAKE_COMMAND} -E remove_directory ${TEST_DIR})
  execute_process(COMMAND ${CMAKE_COMMAND} -E make_directory   ${TEST_DIR})
else()
  execute_process(COMMAND ${CMAKE_COMMAND} -E make_directory   ${TEST_DIR})
endif()
message("TEST_DIR=${TEST_DIR}")
message("PKG_DIR=${PKG_DIR}")
message("SRC_DIR=${SRC_DIR}")

set(cmake_gen)
if(WIN32)
  set(cmake_gen "-GNinja")
endif()

message( "CMAKE_PREFIX_PATH: '${CMAKE_PREFIX_PATH}'" )

execute_process(
  COMMAND ${CMAKE_COMMAND}
  -DCMAKE_INSTALL_PREFIX=${PKG_DIR}
  -DCMAKE_BUILD_TYPE=RelWithDebInfo
  ${cmake_gen}
  ${SRC_DIR}
  WORKING_DIRECTORY ${TEST_DIR}
  RESULT_VARIABLE configure_rv
  OUTPUT_VARIABLE configure_ov
  ERROR_VARIABLE  configure_ov
  )

if( configure_rv )
  message(FATAL_ERROR "Configure FAILED. configure_ov:\n${configure_ov}")
  return()
else()
  message("Configure PASSED. configure_ov:\n${configure_ov}")
endif()

# If you want to test building a third targert, use foreach.
# the code is written in a way that it is easy to stuff these two
# into a cmake foreach
execute_process(COMMAND ${CMAKE_COMMAND}
  --build ${TEST_DIR}
  --config RelWithDebInfo
  --target HelloWorldOTB
  WORKING_DIRECTORY ${TEST_DIR}
  RESULT_VARIABLE build_HelloWorldOTB_rv
  OUTPUT_VARIABLE build_HelloWorldOTB_ov
  ERROR_VARIABLE  build_HelloWorldOTB_ov
  )

if( build_HelloWorldOTB_rv )
  message(FATAL_ERROR "Build FAILED. build_HelloWorldOTB_ov:\n${build_HelloWorldOTB_ov}")
  return()
else()
  message("Build PASSED. build_HelloWorldOTB_ov:\n${build_HelloWorldOTB_ov}")
endif()

execute_process(COMMAND ${CMAKE_COMMAND}
  --build ${TEST_DIR}
  --config RelWithDebInfo
  --target Pipeline
  WORKING_DIRECTORY ${TEST_DIR}
  RESULT_VARIABLE build_Pipeline_rv
  OUTPUT_VARIABLE build_Pipeline_ov
  ERROR_VARIABLE  build_Pipeline_ov
  )

if( build_Pipeline_rv )
  message(FATAL_ERROR "Build FAILED. build_Pipeline_ov=${build_Pipeline_ov}")
  return()
else()
  message("Build PASSED. build_Pipeline_ov=${build_Pipeline_ov}")
endif()