/* ExportBookAction.java created 2008-01-27
 *
 */
package org.signalml.app.action.book;

import static org.signalml.app.util.i18n.SvarogI18n._;

import java.awt.Component;
import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import java.io.File;
import java.util.concurrent.ExecutionException;

import org.apache.log4j.Logger;
import org.signalml.app.action.AbstractFocusableSignalMLAction;
import org.signalml.app.action.selector.BookDocumentFocusSelector;
import org.signalml.app.document.BookDocument;
import org.signalml.app.document.FileBackedDocument;
import org.signalml.app.view.common.dialogs.OptionPane;
import org.signalml.app.view.common.dialogs.PleaseWaitDialog;
import org.signalml.app.view.common.dialogs.errors.Dialogs;
import org.signalml.app.view.workspace.ViewerFileChooser;
import org.signalml.app.worker.document.ExportBookWorker;
import org.signalml.domain.book.StandardBook;
import org.signalml.util.Util;

/** ExportBookAction
 *
 *
 * @author Michal Dobaczewski © 2007-2008 CC Otwarte Systemy Komputerowe Sp. z o.o.
 */
public class ExportBookAction extends AbstractFocusableSignalMLAction<BookDocumentFocusSelector> {

	private static final long serialVersionUID = 1L;

	protected static final Logger logger = Logger.getLogger(ExportBookAction.class);

	private PleaseWaitDialog pleaseWaitDialog;
	private ViewerFileChooser fileChooser;
	private Component optionPaneParent;

	public ExportBookAction(BookDocumentFocusSelector bookDocumentFocusSelector) {
		super(bookDocumentFocusSelector);
		setText(_("Export Book..."));
		setToolTip(_("Export book to file"));
		setMnemonic(KeyEvent.VK_B);
	}

	@Override
	public void actionPerformed(ActionEvent ev) {

		logger.debug("Export book");

		BookDocument bookDocument = getActionFocusSelector().getActiveBookDocument();
		if (bookDocument == null) {
			logger.warn("Target document doesn't exist or is not a book");
			return;
		}

		File fileSuggestion = null;
		if (bookDocument instanceof FileBackedDocument) {
			File originalFile = ((FileBackedDocument) bookDocument).getBackingFile();
			if (originalFile != null) {
				fileSuggestion = new File("export_" + originalFile.getName());
			}
		}

		File file;
		boolean hasFile = false;
		do {

			file = fileChooser.chooseExportBookFile(optionPaneParent, fileSuggestion);
			if (file == null) {
				return;
			}
			String ext = Util.getFileExtension(file,false);
			if (ext == null) {
				file = new File(file.getAbsolutePath() + ".b");
			}

			hasFile = true;

			if (file.exists()) {
				int res = OptionPane.showFileAlreadyExists(optionPaneParent, file.getName());
				if (res != OptionPane.OK_OPTION) {
					hasFile = false;
				}
			}

		} while (!hasFile);


		StandardBook book = bookDocument.getBook();

		ExportBookWorker worker = new ExportBookWorker(book, file, pleaseWaitDialog);

		worker.execute();

		pleaseWaitDialog.setActivity(_("exporting book"));
		pleaseWaitDialog.configureForDeterminate(0, book.getSegmentCount(), 0);
		pleaseWaitDialog.waitAndShowDialogIn(optionPaneParent, 500, worker);

		try {
			worker.get();
		} catch (InterruptedException ex) {
			// ignore
		} catch (ExecutionException ex) {
			logger.error("Worker failed to save", ex.getCause());
			Dialogs.showExceptionDialog((Window) null, ex);
			return;
		}

	}

	@Override
	public void setEnabledAsNeeded() {
		BookDocumentFocusSelector x = getActionFocusSelector();
		if (null != x)
			setEnabled(x.getActiveBookDocument() != null);
	}

	public PleaseWaitDialog getPleaseWaitDialog() {
		return pleaseWaitDialog;
	}

	public void setPleaseWaitDialog(PleaseWaitDialog pleaseWaitDialog) {
		this.pleaseWaitDialog = pleaseWaitDialog;
	}

	public ViewerFileChooser getFileChooser() {
		return fileChooser;
	}

	public void setFileChooser(ViewerFileChooser fileChooser) {
		this.fileChooser = fileChooser;
	}

	public Component getOptionPaneParent() {
		return optionPaneParent;
	}

	public void setOptionPaneParent(Component optionPaneParent) {
		this.optionPaneParent = optionPaneParent;
	}

}