package com.onaro.sanscreen.client.view.grouping;

import java.util.HashSet;
import java.util.Set;

import org.eclipse.core.runtime.IAdaptable;

import com.onaro.client.swing.table.functional.IFunction;
import com.onaro.sanscreen.client.view.tabular.AdaptablesTabularTableModel;
import com.onaro.util.jfc.date.TimeSpan;
import com.onaro.util.jfc.date.TimeSpanProvider;

public abstract class TimeScopedTableModel extends AdaptablesTabularTableModel {

	private static final long serialVersionUID = 1L;

    private Set<Class<? extends IFunction<IAdaptable,?>>> timeScopedFunctions = new HashSet<Class<? extends IFunction<IAdaptable,?>>>();
	
	private TimeSpanProvider timeSpanProvider;
	
	public TimeScopedTableModel() {
		timeSpanProvider = new TimeSpanProvider();
	}
	
	/**
	 * Register a time scoped function. Columns that make use of this function will be updated with the
	 * models time scope changes.
	 * 
	 * @param functionClass
	 * @param timeScopedFunction
	 */
	public <Output,F extends IFunction<IAdaptable,Output>> void registerTimeScopedFunction(Class<F> functionClass, TimeScopedBulkFunction<IAdaptable,Output> timeScopedFunction) {
		timeScopedFunctions.add(functionClass);
		timeScopedFunction.setTimeSpanProvider(timeSpanProvider);
		getFunctionRegistry().register(functionClass, timeScopedFunction);
	}
	
	public boolean hasTimeScope() {
	    TimeSpan timeSpan = timeSpanProvider.getTimeSpan();
		return timeSpan != null && timeSpan.getFromTime() != null && 
			timeSpan.getToTime() != null;
	}
	
	public void setTimeScope(TimeSpan timeSpan) {
		timeSpanProvider.setTimeSpan(timeSpan);
	}
	
	public TimeSpanProvider getTimeSpanProvider() {
		return timeSpanProvider;
	}
}