/*
 * This file is part of LibrePlan
 *
 * Copyright (C) 2009-2010 Fundación para o Fomento da Calidade Industrial e
 *                         Desenvolvemento Tecnolóxico de Galicia
 * Copyright (C) 2010-2011 Igalia, S.L.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.libreplan.web.planner.allocation.stretches;

import java.util.HashMap;

import org.libreplan.business.planner.entities.AssignmentFunction;
import org.libreplan.business.planner.entities.ResourceAllocation;
import org.libreplan.business.planner.entities.StretchesFunction;
import org.libreplan.business.planner.entities.StretchesFunctionTypeEnum;
import org.libreplan.web.common.Util;
import org.libreplan.web.planner.allocation.IAssignmentFunctionConfiguration;
import org.libreplan.web.planner.allocation.stretches.StretchesFunctionController.IGraphicGenerator;
import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.Executions;
import org.zkoss.zul.Messagebox;
import org.zkoss.zul.Window;

/**
 * @author Óscar González Fernández <ogonzalez@igalia.com>
 */
public abstract class StretchesFunctionConfiguration implements IAssignmentFunctionConfiguration {

    @Override
    public void goToConfigure() {
        StretchesFunctionController stretchesFunctionController =
                new StretchesFunctionController(getGraphicsGenerators());

        stretchesFunctionController.setTitle(getTitle());
        HashMap<String, Object> args = new HashMap<>();
        args.put("stretchesFunctionController", stretchesFunctionController);

        Window window = (Window)
                Executions.createComponents("/planner/stretches_function.zul", getParentOnWhichOpenWindow(), args);

        Util.createBindingsFor(window);
        ResourceAllocation<?> allocation = getAllocation();
        stretchesFunctionController.setResourceAllocation(allocation, getType());

        int exitStatus = stretchesFunctionController.showWindow();
        if ( exitStatus == Messagebox.OK ) {
            getAllocation().setAssignmentFunctionAndApplyIfNotFlat(stretchesFunctionController.getAssignmentFunction());
            assignmentFunctionChanged();
        }

    }

    private IGraphicGenerator getGraphicsGenerators() {
        return GraphicForStretches.forType(getType());
    }

    protected abstract StretchesFunctionTypeEnum getType();

    protected abstract boolean getChartsEnabled();

    protected abstract String getTitle();

    protected abstract ResourceAllocation<?> getAllocation();

    protected abstract void assignmentFunctionChanged();

    protected abstract Component getParentOnWhichOpenWindow();

    @Override
    public boolean isTargetedTo(AssignmentFunction function) {
        return function instanceof StretchesFunction && ((StretchesFunction) function).getType() == getType();
    }

    @Override
    public void applyOn(ResourceAllocation<?> resourceAllocation) {
        resourceAllocation.setAssignmentFunctionAndApplyIfNotFlat(StretchesFunction.create());
        assignmentFunctionChanged();
    }

    @Override
    public boolean isSigmoid() {
        return false;
    }

    @Override
    public boolean isConfigurable() {
        return true;
    }

}