/*
 * Copyright 2000-2015 JetBrains s.r.o.
 *
 * 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.
 */
package com.intellij.execution.testframework.sm.runner.history;

import com.intellij.execution.process.ProcessHandler;
import com.intellij.execution.testframework.TestConsoleProperties;
import com.intellij.execution.testframework.sm.runner.GeneralTestEventsProcessor;
import com.intellij.execution.testframework.sm.runner.OutputToGeneralTestEventsConverter;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.ui.Messages;
import com.intellij.openapi.vfs.CharsetToolkit;
import org.jetbrains.annotations.NotNull;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;

import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import java.io.*;

public class ImportedToGeneralTestEventsConverter extends OutputToGeneralTestEventsConverter {

  @NotNull private final TestConsoleProperties myConsoleProperties;
  @NotNull private final File myFile;
  @NotNull private final ProcessHandler myHandler;

  public ImportedToGeneralTestEventsConverter(@NotNull String testFrameworkName,
                                              @NotNull TestConsoleProperties consoleProperties,
                                              @NotNull File file,
                                              @NotNull ProcessHandler handler) {
    super(testFrameworkName, consoleProperties);
    myConsoleProperties = consoleProperties;
    myFile = file;
    myHandler = handler;
  }

  @Override
  public void onStartTesting() {
    ApplicationManager.getApplication().executeOnPooledThread(new Runnable() {
      @Override
      public void run() {
        parseTestResults();
        myHandler.detachProcess();
      }
    });
  }

  private void parseTestResults() {
    try {
      parseTestResults(new InputStreamReader(new FileInputStream(myFile), CharsetToolkit.UTF8_CHARSET), getProcessor());
    }
    catch (IOException e) {
      final String message = e.getMessage();
      ApplicationManager.getApplication().invokeLater(new Runnable() {
        @Override
        public void run() {
          Messages.showErrorDialog(myConsoleProperties.getProject(), message, "Failed to Parse " + myFile.getName());
        }
      });
    }
  }

  public static void parseTestResults(Reader reader, GeneralTestEventsProcessor processor) throws IOException {
    try {
      SAXParser parser = SAXParserFactory.newInstance().newSAXParser();
      parser.parse(new InputSource(reader), new ImportedTestContentHandler(processor));
    }
    catch (ParserConfigurationException e) {
      throw new IOException(e);
    }
    catch (SAXException e) {
      throw new IOException(e);
    }
    finally {
      reader.close();
    }
  }
}