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 *   Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
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 *
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package org.apache.cayenne.modeler.action;

import org.apache.cayenne.configuration.ConfigurationNode;
import org.apache.cayenne.configuration.DataChannelDescriptor;
import org.apache.cayenne.configuration.event.ProcedureParameterEvent;
import org.apache.cayenne.dbsync.naming.NameBuilder;
import org.apache.cayenne.map.Procedure;
import org.apache.cayenne.map.ProcedureParameter;
import org.apache.cayenne.map.event.MapEvent;
import org.apache.cayenne.modeler.Application;
import org.apache.cayenne.modeler.ProjectController;
import org.apache.cayenne.modeler.event.ProcedureParameterDisplayEvent;
import org.apache.cayenne.modeler.util.CayenneAction;
import org.apache.cayenne.modeler.undo.CreateProcedureParameterUndoableEdit;

import java.awt.event.ActionEvent;

public class CreateProcedureParameterAction extends CayenneAction {

    /**
     * Constructor for CreateProcedureParameterAction.
     */
    public CreateProcedureParameterAction(Application application) {
        super(getActionName(), application);
    }

    public static String getActionName() {
        return "Create Parameter";
    }

    /**
     * Fires events when an proc parameter was added
     */
    static void fireProcedureParameterEvent(Object src, ProjectController mediator, Procedure procedure,
                                            ProcedureParameter parameter) {
        mediator.fireProcedureParameterEvent(new ProcedureParameterEvent(src, parameter, MapEvent.ADD));

        mediator.fireProcedureParameterDisplayEvent(new ProcedureParameterDisplayEvent(src, parameter, procedure,
                mediator.getCurrentDataMap(), (DataChannelDescriptor) mediator.getProject().getRootNode()));
    }

    @Override
    public String getIconName() {
        return "icon-plus.png";
    }

    /**
     * Creates ProcedureParameter depending on context.
     */
    @Override
    public void performAction(ActionEvent e) {
        ProjectController mediator = getProjectController();

        if (getProjectController().getCurrentProcedure() != null) {
            Procedure procedure = getProjectController().getCurrentProcedure();
            ProcedureParameter parameter = new ProcedureParameter();
            parameter.setName(NameBuilder.builder(parameter, procedure).name());

            createProcedureParameter(procedure, parameter);

            application.getUndoManager().addEdit(
                    new CreateProcedureParameterUndoableEdit(
                            (DataChannelDescriptor) mediator.getProject().getRootNode(), mediator.getCurrentDataMap(),
                            procedure, parameter
                    )
            );
        }
    }

    public void createProcedureParameter(Procedure procedure, ProcedureParameter parameter) {
        procedure.addCallParameter(parameter);
        ProjectController mediator = getProjectController();
        fireProcedureParameterEvent(this, mediator, procedure, parameter);
    }

    /**
     * Returns true if path contains a Procedure object.
     */
    public boolean enableForPath(ConfigurationNode object) {
        if (object == null) {
            return false;
        }

        return ((ProcedureParameter) object).getProcedure() != null;
    }
}