/**
 * *******************************************************************************
 *  Copyright (c) 2017 Timing-Architects Embedded Systems GmbH and others.
 *  All rights reserved. This program and the accompanying materials
 *  are made available under the terms of the Eclipse Public License v1.0
 *  which accompanies this distribution, and is available at
 *  http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Timing-Architects Embedded Systems GmbH - initial API and implementation
 *
 * *******************************************************************************
 */
package org.eclipse.app4mc.amalthea.generator.ui;

import java.util.Arrays;

import org.eclipse.app4mc.amalthea.generator.configuration.DistributionType;
import org.eclipse.app4mc.amalthea.generator.configuration.IntegerTimeDistribution;
import org.eclipse.app4mc.amalthea.generator.configuration.RTMGCFactory;
import org.eclipse.app4mc.amalthea.generator.configuration.TimeUnit;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;

public class IntegerTimeDistributionGroup extends IntegerDistributionGroup {

	protected final Combo unitCombo;
	
	public IntegerTimeDistributionGroup(Composite parent, String name) {
		this(parent, name, 1, TimeUnit.PS);		
	}
	
	public IntegerTimeDistributionGroup(Composite parent, String name, int avg, TimeUnit unit) {
		this(parent, name, DistributionType.CONST, avg, avg, avg, unit);
	}
	
	public IntegerTimeDistributionGroup(Composite parent, String name, int min, int max, TimeUnit unit) {
		this(parent, name, DistributionType.UNIFORM, min, Math.round((min + max) / 2f), max, unit);
	}
	
	public IntegerTimeDistributionGroup(Composite parent, String name, int min, int avg, int max, TimeUnit unit) {
		this(parent, name, DistributionType.WEIBULL, min, avg, max, unit);
	}
	
	protected IntegerTimeDistributionGroup(Composite parent, String name, DistributionType type, int min, int avg, int max, TimeUnit unit) {
		super(parent, name);
		
		super.set(type, min, avg, max);
		
		Label label = new Label(this.group, SWT.NONE);
	    label.setText("Unit");
	    label.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false));
	    this.unitCombo = new Combo(this.group, SWT.READ_ONLY);
	    this.unitCombo.setItems(Arrays.stream(TimeUnit.values()).map(Enum::name).toArray(String[]::new));
	    this.unitCombo.select(unit.getValue());
	}
	
	public void set(DistributionType type, int min, int avg, int max, TimeUnit unit) {
		super.set(type, min, avg, max);
		this.unitCombo.select(unit.getValue());
	}
	
	public void set(IntegerTimeDistribution distribution) {
		if(null != distribution) {
			TimeUnit unit = distribution.getUnit();
			DistributionType type = distribution.getType();
			int min = (int) distribution.getMin();
			int avg = (int) distribution.getAvg();
			int max = (int) distribution.getMax();
			this.set(type, min, avg, max, unit);
		}
	}

	public IntegerTimeDistribution get() {
		IntegerTimeDistribution distribution = RTMGCFactory.eINSTANCE.createIntegerTimeDistribution();
		distribution.setMin(this.minSpinner.getSelection());
		distribution.setAvg(this.avgSpinner.getSelection());
		distribution.setMax(this.maxSpinner.getSelection());
		distribution.setType(DistributionType.get(this.distributionCombo.getSelectionIndex()));
		distribution.setUnit(TimeUnit.get(this.unitCombo.getSelectionIndex()));
		return distribution;
	}

}