// Copyright (c) 2009 Dukascopy (Suisse) SA. All Rights Reserved.
package charts.test;

import java.util.*;

import javax.swing.SwingConstants;
import com.dukascopy.api.*;
import com.dukascopy.api.drawings.*;

public class InteractiveRectangleDrawer implements IStrategy {
    private IConsole console;
    private IHistory history;
    private IChart   chart;

    private Instrument instrument = Instrument.EURUSD;
    private Period     period     = Period.TEN_SECS;

    public void onStart(IContext context) throws JFException {
        this.console = context.getConsole();
        this.history = context.getHistory();
        chart         = context.getChart(instrument);

    }

    public void onAccount(IAccount account) throws JFException {    }
    public void onMessage(IMessage message) throws JFException {    }
    public void onStop() throws JFException {    }
    public void onTick(Instrument instrument, ITick tick) throws JFException {    }

    // 各バーに長方形オブジェクトを新規追加する
    public void onBar(Instrument instrument, Period period, IBar askBar, IBar bidBar) throws JFException {

        if (chart == null || !period.equals(this.period) || !instrument.equals(this.instrument))
            return;

        IBar prevBar = history.getBar(instrument, this.period, OfferSide.BID, 2);

        InteractiveRectangle rectangle = new InteractiveRectangle(
                                             "click herev",  
                                             prevBar.getTime(),
                                             prevBar.getClose(),
                                             bidBar.getTime(),
                                             bidBar.getClose()
                                         );

        rectangle.addToChart();
    }

    private String getKey(String str) {
        return str + UUID.randomUUID().toString().replace('-', '0');
    }

    private void print(String message) {
        console.getOut().println(message);
    }

    // 長方形オブジェクトにラベルとイベントハンドラを追加
    class InteractiveRectangle {

        private ILabelChartObject label;
        private IRectangleChartObject rectangle;

        public InteractiveRectangle( String caption, long time1, double price1, long time2, double price2 ) {

            IChartObjectFactory factory = chart.getChartObjectFactory();

            // 長方形オブジェクト追加
            rectangle = factory.createRectangle(
                            getKey("rectangle"),
                            time1,
                            price1,
                            time2,
                            price2
                        );

            // ラベルオブジェクト追加
            label = factory.createLabel(
                        getKey("label"),
                        getLabelTime(),
                        getLabelPrice()
                    );

            label.setText(caption, SwingConstants.LEFT);

            // イベント時の動作を設定
            rectangle.setChartObjectListener(new ChartObjectAdapter() {
                @Override
                public void deleted(ChartObjectEvent e) {
                    print("オブジェクト削除：キー = " + rectangle.getKey());
                    // ラベルオブジェクト削除
                    chart.remove(label);
                }

                @Override
                public void selected(ChartObjectEvent e) {
                    print("オブジェクト選択：キー = " + rectangle.getKey());
                }

                @Override
                public void moved(ChartObjectEvent e) {
                    // 長方形の中央にラベルを移動
                    label.setPrice(0, getLabelPrice());
                    label.setTime(0, getLabelTime());
                }                
            });
        }

        public void addToChart() {
            chart.addToMainChartUnlocked(rectangle);
            chart.addToMainChartUnlocked(label);
        }

        // 長方形の時間中央位置を取得
        private long getLabelTime(){
            return (rectangle.getTime(1) - rectangle.getTime(0))/2 +  rectangle.getTime(0);
        }

        // 長方形の価格中央位置を取得
        private double getLabelPrice(){
            return (rectangle.getPrice(1) - rectangle.getPrice(0))/2 +  rectangle.getPrice(0);
        }

    }
}