package designPatternExtensions;
import models.objectOrientedTransfer.*;

import java.util.ArrayList;
//メモ
//中身の構造を隠したまま、順番にデータを取り出す
//アイテムのタイプをifで回さなくても
//https://github.com/iluwatar/java-design-patterns/tree/master/iterator


public class Iterator {

    public static DataTransferDesign create() throws IllegalRelationException {
        ObjectNode treasureChest = new ObjectNode("TreasureChest");
        ObjectNode client        = new ObjectNode("Client");
        ObjectNode item          = new ObjectNode("Item");

        Relation transferRelation = new Relation(treasureChest, client, MultiplicityValue.OneToOne);
        DataTransferContext context = new DataTransferContext(
                new ArrayList<>(), transferRelation, item, "item", PushPullValue.PULL
        );

        DataTransferDesign design = new DataTransferDesign(context);

        ObjectNode iterator = new ObjectNode("TreasureChestItemIterator");
        MediatorInsertion mi = new MediatorInsertion(client, treasureChest, iterator);
        design.addMediatorInsertion(mi);

        DependencyInversion di = new DependencyInversion(
                iterator, new InterfaceNode(iterator, "Iterator"), client
        );
        design.addDependencyInversion(di);

        return design;
    }
}