package net.sourceforge.phpeclipse.wiki.wizards;

import java.lang.reflect.InvocationTargetException;

import net.sourceforge.phpeclipse.wiki.builder.AddBuilderAction;
import net.sourceforge.phpeclipse.wiki.editor.WikiEditorPlugin;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IProjectDescription;
import org.eclipse.core.resources.IWorkspace;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExecutableExtension;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.ui.INewWizard;
import org.eclipse.ui.actions.WorkspaceModifyDelegatingOperation;
import org.eclipse.ui.dialogs.WizardNewProjectCreationPage;
import org.eclipse.ui.wizards.newresource.BasicNewProjectResourceWizard;
import org.eclipse.ui.wizards.newresource.BasicNewResourceWizard;

public class NewProjectCreationWizard extends BasicNewResourceWizard implements INewWizard, IExecutableExtension {
  protected WizardNewProjectCreationPage projectPage;

  protected IConfigurationElement configurationElement;

  protected IProject newProject;

  public NewProjectCreationWizard() {
    setWindowTitle(WizardMessages.getString("NewProjectCreationWizard.windowTitle"));
  }

  public boolean performFinish() {
    IRunnableWithProgress projectCreationOperation = new WorkspaceModifyDelegatingOperation(getProjectCreationRunnable());

    try {
      getContainer().run(false, true, projectCreationOperation);
    } catch (Exception e) {
      WikiEditorPlugin.log(e);
      return false;
    }

    BasicNewProjectResourceWizard.updatePerspective(configurationElement);
    selectAndReveal(newProject);

    return true;
  }

  protected IRunnableWithProgress getProjectCreationRunnable() {
    return new IRunnableWithProgress() {
      public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
        int remainingWorkUnits = 10;
        monitor.beginTask(WizardMessages.getString("NewProjectCreationWizard.projectCreationMessage"), remainingWorkUnits);

        IWorkspace workspace = WikiEditorPlugin.getWorkspace();
        newProject = projectPage.getProjectHandle();

        IProjectDescription description = workspace.newProjectDescription(newProject.getName());
        IPath path = Platform.getLocation();
        IPath customPath = projectPage.getLocationPath();
        if (!path.equals(customPath)) {
          path = customPath;
          description.setLocation(path);
        }

        try {
          if (!newProject.exists()) {
            newProject.create(description, new SubProgressMonitor(monitor, 1));
            remainingWorkUnits--;
          }
          if (!newProject.isOpen()) {
            newProject.open(new SubProgressMonitor(monitor, 1));
            remainingWorkUnits--;
          }
//          addWikipediaNature(newProject, new SubProgressMonitor(monitor, remainingWorkUnits));
          AddBuilderAction.addBuilder(newProject);
        }
        catch (CoreException e) {
          throw new InvocationTargetException(e);
        } finally {
          monitor.done();
        }
      }
    };
  }

//  public static void addWikipediaNature(IProject project, IProgressMonitor monitor) throws CoreException {
//    if (!project.hasNature(WikiEditorPlugin.NATURE_ID)) {
//      IProjectDescription description = project.getDescription();
//      String[] prevNatures = description.getNatureIds();
//      String[] newNatures = new String[prevNatures.length + 1];
//      System.arraycopy(prevNatures, 0, newNatures, 0, prevNatures.length);
//      newNatures[prevNatures.length] = WikiEditorPlugin.NATURE_ID;
//      description.setNatureIds(newNatures);
//      project.setDescription(description, monitor);
//    }
//  }

  public void addPages() {
    super.addPages();

    projectPage = new WizardNewProjectCreationPage(WizardMessages.getString("WizardNewProjectCreationPage.pageName"));
    projectPage.setTitle(WizardMessages.getString("WizardNewProjectCreationPage.pageTitle"));
    projectPage.setDescription(WizardMessages.getString("WizardNewProjectCreationPage.pageDescription"));

    addPage(projectPage);
  }

  public void setInitializationData(IConfigurationElement config, String propertyName, Object data) throws CoreException {
    configurationElement = config;
  }

}