/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  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
 *
 *         https://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  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.
 *
 *=========================================================================*/

#include <iostream>
#include <fstream>
#include "itkStdStreamLogOutput.h"
#include "itkLoggerOutput.h"
#include "itkTestingMacros.h"


int
itkLoggerOutputTest(int argc, char * argv[])
{
  try
  {
    if (argc < 2)
    {
      std::cout << "Usage: " << itkNameOfTestExecutableMacro(argv) << " logFilename" << std::endl;
      return EXIT_FAILURE;
    }


    // Create an ITK StdStreamLogOutputs
    itk::StdStreamLogOutput::Pointer coutput = itk::StdStreamLogOutput::New();
    itk::StdStreamLogOutput::Pointer foutput = itk::StdStreamLogOutput::New();
    coutput->SetStream(std::cout);
    std::ofstream fout(argv[1]);
    foutput->SetStream(fout);

    // Create an ITK Logger
    itk::Logger::Pointer logger = itk::Logger::New();

    std::cout << "Testing itk::LoggerOutput" << std::endl;

    // Setting the logger
    logger->SetName("org.itk.rootLogger");
    logger->SetPriorityLevel(itk::LoggerBase::PriorityLevelEnum::INFO);
    logger->SetLevelForFlushing(itk::LoggerBase::PriorityLevelEnum::CRITICAL);

    std::cout << "  Adding console and file stream LogOutputs" << std::endl;
    logger->AddLogOutput(coutput);
    logger->AddLogOutput(foutput);

    // Printing the logger's member variables
    std::cout << "  Name: " << logger->GetName() << std::endl;
    std::cout << "  Priority Level: " << logger->GetPriorityLevel() << std::endl;
    std::cout << "  Level For Flushing: " << logger->GetLevelForFlushing() << std::endl;

    // Create an ITK LoggerOutput and then test it.
    itk::LoggerOutput::Pointer pOver = itk::LoggerOutput::New();

    ITK_EXERCISE_BASIC_OBJECT_METHODS(pOver, LoggerOutput, OutputWindow);


    pOver->OverrideITKWindow();
    pOver->SetLogger(logger); // redirect messages from ITK OutputWindow -> logger2
    ITK_TEST_SET_GET_VALUE(logger, pOver->GetLogger());

    // test message for ITK OutputWindow
    itk::OutputWindow::GetInstance()->DisplayText("** This is from ITK OutputWindow **\n");
    itk::OutputWindow::GetInstance()->DisplayDebugText("** This is from ITK OutputWindow **\n");
    itk::OutputWindow::GetInstance()->DisplayWarningText("** This is from ITK OutputWindow **\n");
    itk::OutputWindow::GetInstance()->DisplayErrorText("** This is from ITK OutputWindow **\n");
    itk::OutputWindow::GetInstance()->DisplayGenericOutputText("** This is from ITK OutputWindow **\n");
  }
  catch (...)
  {
    std::cerr << "Exception caught !!" << std::endl;
    return EXIT_FAILURE;
  }

  std::cout << "[PASSED]" << std::endl;
  return EXIT_SUCCESS;
}
