package net.sourceforge.phpeclipse.wiki.actions.category;

import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;

import net.sourceforge.phpeclipse.wiki.actions.CreateFilesJob;
import net.sourceforge.phpeclipse.wiki.actions.OpenWikiLinkEditorAction;
import net.sourceforge.phpeclipse.wiki.actions.ProblemConsole;
import net.sourceforge.phpeclipse.wiki.actions.mediawiki.config.IWikipedia;
import net.sourceforge.phpeclipse.wiki.actions.mediawiki.connect.Loaded;
import net.sourceforge.phpeclipse.wiki.actions.mediawiki.connect.MediaWikiConnector;
import net.sourceforge.phpeclipse.wiki.actions.mediawiki.exceptions.MethodException;
import net.sourceforge.phpeclipse.wiki.actions.mediawiki.exceptions.PageNotEditableException;
import net.sourceforge.phpeclipse.wiki.actions.mediawiki.exceptions.UnexpectedAnswerException;
import net.sourceforge.phpeclipse.wiki.editor.WikiEditorPlugin;
import net.sourceforge.phpeclipse.wiki.internal.Configuration;
import net.sourceforge.phpeclipse.wiki.internal.ConfigurationManager;
import net.sourceforge.phpeclipse.wiki.internal.IConfiguration;
import net.sourceforge.phpeclipse.wiki.preferences.Util;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IFileEditorInput;
import org.eclipse.ui.dialogs.ListSelectionDialog;
import org.eclipse.ui.internal.dialogs.ListContentProvider;

public final class CreateFilesFromCategoryEditorAction extends OpenWikiLinkEditorAction {

  class WikiFile implements Comparable {
    IFile file;

    String wikiTitle;

    public WikiFile(IFile f, String title) {
      file = f;
      wikiTitle = title;
    }

    /*
     * (non-Javadoc)
     * 
     * @see java.lang.Object#toString()
     */
    public String toString() {
      return wikiTitle + " - " + file.getProjectRelativePath().toString();
    }

    /*
     * (non-Javadoc)
     * 
     * @see java.lang.Comparable#compareTo(java.lang.Object)
     */
    public int compareTo(Object o) {
      return wikiTitle.compareTo(((WikiFile) o).wikiTitle);
    }
  }

  protected Configuration getConfigurationPrefix(String prefix) {
    List allConfigsList = ConfigurationManager.getInstance().getConfigurations();
    ArrayList configsList = new ArrayList();
    for (int i = 0; i < allConfigsList.size(); i++) {
      IConfiguration temp = (IConfiguration) allConfigsList.get(i);
      if (temp.getType().startsWith(prefix)) {
        configsList.add(temp);
      }
    }
    if (configsList.size() == 1) {
      return (Configuration) configsList.get(0);
    }
    Collections.sort(configsList);
    Configuration configuration = null;
    ListSelectionDialog listSelectionDialog = new ListSelectionDialog(WikiEditorPlugin.getDefault().getWorkbench()
        .getActiveWorkbenchWindow().getShell(), configsList, new ListContentProvider(), new LabelProvider(),
        "Select the refresh URL.");
    listSelectionDialog.setTitle("Multiple active configuration found");
    if (listSelectionDialog.open() == Window.OK) {
      Object[] locations = listSelectionDialog.getResult();
      if (locations != null) {
        for (int i = 0; i < locations.length; i++) {
          configuration = (Configuration) locations[i];
          break;
        }
      }
    }
    return configuration;
  }

  protected Configuration getConfiguration() {
    return getConfigurationPrefix(WikiEditorPlugin.PREFIX_LOAD);
  }

  public void openWikiLinkOnSelection() {
    ProblemConsole console = new ProblemConsole();
    IDocument doc = getDocument();
    Shell shell = Util.findShell();
    if (shell == null) {
      return;
    }
    CategoryDialog dialog = new CategoryDialog(shell);//$NON-NLS-1$
    dialog.open();
    String category = dialog.getCategory();
    if (category == null || category.length() == 0) {
      return;
    }
    category = category.replaceAll(" ", "_");
    Configuration configuration = getConfiguration();
    String wikiLocale = configuration.getType().substring(WikiEditorPlugin.PREFIX_LOAD.length());
    String htmlContent = null;
    try {
      IWikipedia wikipediaProperties = WikiEditorPlugin.getWikiInstance(wikiLocale);

      MediaWikiConnector connector = new MediaWikiConnector();
      String actionUrl = wikipediaProperties.getActionUrl() + "/Category:" + category;
      htmlContent = connector.loadHTMLPage(actionUrl, wikipediaProperties.getCharSet());
    } catch (UnexpectedAnswerException e) {
      console.println("UnexpectedAnswerException: " + e.getMessage());
    } catch (MethodException e) {
      console.println("HTTP-MethodException: " + e.getMessage());
    } catch (PageNotEditableException e) {
      console.println("PageNotEditableException: " + e.getMessage());
    } catch (NoSuchMethodException e) {
      console.println("NoSuchMethodException: " + e.getMessage());
    } catch (IllegalAccessException e) {
      console.println("IllegalAccessException: " + e.getMessage());
    } catch (ClassNotFoundException e) {
      console.println("ClassNotFoundException: " + e.getMessage());
    } catch (InvocationTargetException e) {
      console.println("InvocationTargetException: " + e.getMessage());
    }
    if (htmlContent == null) {
      return;
    }
    ParseCategory pc = new ParseCategory();
    pc.parseCategory(htmlContent);

    ArrayList startPositionList = pc.getTitleList();

    HashSet wikiNames = new HashSet();
    ArrayList filesList = new ArrayList();
    ArrayList wikiList = new ArrayList();
    String wikiTitle;
    Integer posInteger;
    IFile currentFile = ((IFileEditorInput) editor.getEditorInput()).getFile();

    for (int i = 0; i < startPositionList.size(); i++) {
      wikiTitle = (String) startPositionList.get(i);

      if (wikiTitle != null && !wikiTitle.equals("")) {
        if (!wikiNames.contains(wikiTitle)) {
          IFile file = getWikiFile(currentFile, wikiTitle);
          if (!file.exists()) {
            filesList.add(new WikiFile(file, wikiTitle));
          }
          wikiNames.add(wikiTitle);
        }
      }
    }

    if (filesList.size() > 0) {
      Collections.sort(filesList);
      ListSelectionDialog listSelectionDialog = new ListSelectionDialog(WikiEditorPlugin.getDefault().getWorkbench()
          .getActiveWorkbenchWindow().getShell(), filesList, new ListContentProvider(), new LabelProvider(),
          "Select the links for file creation:");
      listSelectionDialog.setTitle("Links found in this article");
      if (listSelectionDialog.open() == Window.OK) {
        Object[] locations = listSelectionDialog.getResult();
        if (locations.length > 0) {
          IFile[] files = new IFile[locations.length];
          String[] wikiTitles = new String[locations.length];
          for (int i = 0; i < files.length; i++) {
            files[i] = ((WikiFile) locations[i]).file;
            wikiTitles[i] = ((WikiFile) locations[i]).wikiTitle;
          }

          Job job = new CreateFilesJob(files, wikiTitles);
          //        job.setRule(createRule(files));
          job.setRule(null);
          job.setUser(true);
          job.schedule();
        }
      }

    }
  }

}