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package eu.future.earth.gwt.client.date;

import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;

import com.google.gwt.core.client.GWT;
import com.google.gwt.i18n.client.DateTimeFormat;

public abstract class BaseDateRenderer implements DateRenderer {

	protected DateTexts dateTexts = (DateTexts) GWT.create(DateTexts.class);

	public boolean gotoDayViewOnClick(){
		return true;
	}
	
	public boolean headerClickable(){
		return false;
	}
	
	public int getWholeEventRowHeigt(){
		return 30;
	}
	
	public String getDay(Date theDate) {
		DateTimeFormat formatter = DateTimeFormat.getFormat("MM/dd/yyyy");
		return formatter.format(theDate);
	}

	public String getTime(Date theDate) {
		DateTimeFormat formatter = DateTimeFormat.getFormat("HH:mm");
		return formatter.format(theDate);
	}

	public String getTitleDisplayText(DatePanel thePanel) {
		final Date current = thePanel.getFirstDateShow();

		final PanelType viewType = thePanel.getType();

		switch (viewType) {
		case MONTH: {
			final Calendar helper = new GregorianCalendar();
			helper.setMinimalDaysInFirstWeek(4);
			helper.setFirstDayOfWeek(Calendar.MONDAY);
			helper.setTime(current);
			helper.add(Calendar.DATE, 14);
			if (useShowMore()) {
				final DateTimeFormat formatter = DateTimeFormat.getFormat("MMMM y"); // NOPMD;
				return formatter.format(helper.getTime());
			} else {
				final DateTimeFormat formatter = DateTimeFormat.getFormat("MMMM yyyy"); // NOPMD;
				return formatter.format(helper.getTime());
			}

		}
		case WEEK: {
			final Calendar helper = new GregorianCalendar();
			helper.setMinimalDaysInFirstWeek(4);
			helper.setFirstDayOfWeek(Calendar.MONDAY);
			helper.setTime(current);
			return dateTexts.week() + " " + (helper.get(Calendar.WEEK_OF_YEAR));
		}
		case DAY: {
			DateTimeFormat formatter = DateTimeFormat.getFormat("MM/dd");
			return formatter.format(current);
		}
		case LIST: {
			DateTimeFormat formatter = DateTimeFormat.getFormat("MM/dd");
			StringBuffer result = new StringBuffer();
			result.append(formatter.format(current));
			result.append(" - ");
			final Date until = thePanel.getLastDateShow();
			result.append(formatter.format(until));
			return result.toString();
		}
		default: {
			DateTimeFormat formatter = DateTimeFormat.getFormat("MM/dd");
			return formatter.format(current);
		}
		}

	}

	public AddCallBackHandler createAddHandler(DatePanel view, T theData) {
		return new AddCallBackHandler(view, theData);
	}

	public UpdateCallBackHandler createUpdateHandler(DatePanel view, T theData) {
		return new UpdateCallBackHandler(view, theData);
	}

	public RemoveCallBackHandler createRemoveHandler(DatePanel view, T theData) {
		return new RemoveCallBackHandler(view, theData);
	}

	public boolean showDay(int dayCode) {
		return true;
	}

	public DateTimeFormat getDayHeaderDateTimeFormatter() {
		return DateTimeFormat.getFormat("MM/dd E");
	}

}