import java.util.ArrayList;

import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.util.Log;

import com.google.android.maps.GeoPoint;
import com.google.android.maps.ItemizedOverlay;
import com.google.android.maps.MapView;
import com.google.android.maps.OverlayItem;

public class GeoItemizedOverlay extends ItemizedOverlay<OverlayItem> {
	private final String TAG = "GeoItemizedOverlay";
	private Context mContext;

	public GeoItemizedOverlay(Drawable defaultMarker, Context context) {
		super(boundCenterBottom(defaultMarker));
		this.mContext = context;
		this.populate();
	}

	private ArrayList<OverlayItem> mOverlays = new ArrayList<OverlayItem>();

	public void addOverlay(OverlayItem overlay) {
		mOverlays.add(overlay);
		populate();
	}

	@Override
	protected OverlayItem createItem(int i) {
		return mOverlays.get(i);
	}

	@Override
	public int size() {
		return mOverlays.size();
	}

	@Override
	public boolean onTap(GeoPoint p, MapView mapView) {
		Log.i(TAG, "item tapped: " + p.toString());
		return super.onTap(p, mapView);
	}

	/***
	 * When an overlay item is tapped, pop up an alert with it's Title and
	 * snippet
	 */
	@Override
	protected boolean onTap(int index) {
		Log.i(TAG, "Index of tapped item: " + index);
		OverlayItem tappedItem = mOverlays.get(index);
		Log.i(TAG, "Title of tapped item: " + tappedItem.getTitle());
		Log.i(TAG, "shippet of tapped item: " + tappedItem.getSnippet());

		// Bulid the alert dialog and show it
		AlertDialog dialog = new AlertDialog.Builder(this.mContext).create();
		dialog.setTitle(tappedItem.getTitle());
		dialog.setMessage(tappedItem.getSnippet());
		final String url = tappedItem.getSnippet();

		//When the user clicks view image, open a browser with the image URL
		dialog.setButton("View Image", new DialogInterface.OnClickListener() {
			public void onClick(DialogInterface dialog, int which) {
				Intent webIntent = new Intent(Intent.ACTION_VIEW);
				webIntent.setData(Uri.parse(url));
				mContext.startActivity(webIntent);
			}
		});
		dialog.setButton2("Close", new DialogInterface.OnClickListener() {
			public void onClick(DialogInterface dialog, int which) {
			}
		});
		dialog.show();
		return super.onTap(index);
	}
}