package com.skyline.terraexplorer.tools;

import android.os.Handler;

import android.os.Looper;

import com.skyline.teapi.*;

import com.skyline.teapi.ISGWorld.OnAnalysisProgressListener;

import com.skyline.teapi.ISGWorld.OnLButtonUpListener;

import com.skyline.terraexplorer.R;

import com.skyline.terraexplorer.TEApp;

import com.skyline.terraexplorer.models.MenuEntry;

import com.skyline.terraexplorer.models.TEUnits;

import com.skyline.terraexplorer.models.UI;

import com.skyline.terraexplorer.views.ToolContainer.CloseReason;

public class AreaTool extends ProgressTool implements OnLButtonUpListener, OnAnalysisProgressListener {

	private double groundArea;

	private String toolContainerText;

	@Override

	public MenuEntry getMenuEntry() {

		return MenuEntry.createFor(this, R.string.mm_analyze_area, R.drawable.area,MenuEntry.MenuEntryAnalyze(), 20);

	}

	private void startDrawPolygon()

	{

	    // start draw polygon

		ISGWorld.getInstance().getCommand().Execute(1012, 5);

	    // get object

	    String objectId = (String)ISGWorld.getInstance().GetParam(7200);

	    ITerrainPolygon areaPolygon = ISGWorld.getInstance().getCreator().GetObject(objectId).CastTo(ITerrainPolygon.class);

	    if (areaPolygon != null)

	    {

	        areaPolygon.getPosition().setAltitudeType(AltitudeTypeCode.ATC_TERRAIN_RELATIVE);

	        areaPolygon.SetParam(5440, null); 	// Give the polygon X-Ray look

	        areaPolygon.SetParam(5441, null); 	// // Make sure we do not see the red "edit vertex helper polyline"

	        areaPolygon.getLineStyle().setWidth(-2.0);                 // Make the polygon a bit wider

	    }

	}

	@Override

	public boolean onBeforeOpenToolContainer() {

		super.onBeforeOpenToolContainer();

		showNormalButtons();

		updateArea(0,0);

		groundArea = 0;

		UI.runOnRenderThread(new Runnable() {

			@Override

			public void run() {

				// start draw polygon

				startDrawPolygon();

			    // subscribe to lButtonUp as an event that causes the polygon to change

				ISGWorld.getInstance().addOnLButtonUpListener(AreaTool.this);

			}

		});

		return true;

	}

	@Override

	public boolean onBeforeCloseToolContainer(CloseReason closeReason) {

		super.onBeforeCloseToolContainer(closeReason);

		UI.runOnRenderThread(new Runnable() {

			@Override

			public void run() {

			    String objectId = (String) ISGWorld.getInstance().GetParam(7200);

			    // simulate right click to end drawing

			    ISGWorld.getInstance().SetParam(8044, 0);

			    ISGWorld.getInstance().getCreator().DeleteObject(objectId);

			    ISGWorld.getInstance().removeOnLButtonUpListener(AreaTool.this);

			}

		});

	    return true;

	}

	private void updateArea(final double area, final double perimeter)

	{

		UI.runOnUiThreadAsync(new Runnable() {

			@Override

			public void run() {

				if(area == 0 || perimeter == 0)

				{

					toolContainerText = "";

				}

				else

				{

					String aerialText = String.format(TEApp.getAppContext().getString(R.string.measure_area_area), TEUnits.instance.formatArea(area));

					String verticalText = String.format(TEApp.getAppContext().getString(R.string.measure_area_perimeter), TEUnits.instance.formatDistance(perimeter));

					toolContainerText = String.format("%s\r\n%s",aerialText, verticalText);

				}

				toolContainer.setText(toolContainerText);

			}

		});

	}

	@Override

	public void onButtonClick(int tag) {

		super.onButtonClick(tag);

	    switch (tag) {

	        case 1: // delete all points

	        {

	        	// bug fix 18295

	        	groundArea = 0;

	    	    updateArea(0, 0);

	    	    UI.runOnRenderThread(new Runnable() {

					@Override

					public void run() {

			            String objectId = (String) ISGWorld.getInstance().GetParam(7200);

			            // simulate right click to end drawing

			    	    ISGWorld.getInstance().SetParam(8044, 0);

			    	    // delete object

			    	    ISGWorld.getInstance().getCreator().DeleteObject(objectId);

			            // and start adding again

			    	    startDrawPolygon();

					}

				});

	            // get object

	            break;

	        }

	        case 3: // calculate ground area

	        	doWorkAsync();

	            break;

	        default:

	            break;

	    }

	}

	@Override

	protected void doWork() {

		if(groundArea <= 0)

		{

			ISGWorld.getInstance().addOnAnalysisProgressListener(this);

	        groundArea = calculateGroundArea();

			ISGWorld.getInstance().removeOnAnalysisProgressListener(this);

		}

	}

	@Override

	public boolean OnAnalysisProgress(int CurrPos, int Range) {

		setProgress(CurrPos, Range);

		return workCanceled;

	}		

	@Override

	protected void workCompleted() {

		if(workCanceled == false)

		{

	        String groundText = String.format(TEApp.getAppContext().getString(R.string.measure_area_ground), TEUnits.instance.formatArea(groundArea));

	        String text = String.format("%s\r\n%s",groundText, toolContainerText);

	        toolContainer.setText(text);

		}

	}

	private double calculateGroundArea()

	{

	    String objectId = (String)ISGWorld.getInstance().GetParam(7200);

	    ITerrainPolygon areaPolygon = ISGWorld.getInstance().getCreator().GetObject(objectId).CastTo(ITerrainPolygon.class);

	    if (areaPolygon != null)

	    {

	        double area = ISGWorld.getInstance().getAnalysis().MeasureTerrainSurface(areaPolygon.getGeometry(), 0);

	        return area;

	    }

	    return 0;

	}

	@Override

	protected void showNormalButtons() {

	    toolContainer.removeButtons();

	    toolContainer.addButton(1, R.drawable.delete);

	    //toolContainer.addButton(2, R.drawable.delete_last_point);

	    toolContainer.addButton(3, R.drawable.calc_area);

	}

	@Override

	public boolean OnLButtonUp(int Flags, int X, int Y)

	{

		new Handler(Looper.getMainLooper()).postDelayed(new Runnable() {

			@Override

			public void run() {

				UI.runOnRenderThread(new Runnable() {

					@Override

					public void run() {

			            String objectId = (String) ISGWorld.getInstance().GetParam(7200);

				        ITerrainPolygon areaPolygon = ISGWorld.getInstance().getCreator().GetObject(objectId).CastTo(ITerrainPolygon.class);

				        IPolygon poly = areaPolygon.getGeometry().CastTo(IPolygon.class);

				        if (poly != null)

				        {

				        	double area = (Double)areaPolygon.GetParam(5430);

				            double perimeter = poly.getExteriorRing().getLength();

				            updateArea(area, perimeter);

				            groundArea = 0;

				        }

					}

				});

			}

		}, 10);

		return false;

	}

}