/*Copyright (c) 2015 Airbnb

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

2020.03.05-Changed components which are belongs to Google replaced with Huawei
Huawei Technologies Co., Ltd.

2020.03.05-Changed package name
Huawei Technologies Co., Ltd.
*/

package com.el173.map;

import android.content.Context;

import com.huawei.hms.maps.HuaweiMap;
import com.huawei.hms.maps.model.TileOverlay;
import com.huawei.hms.maps.model.TileOverlayOptions;
import com.huawei.hms.maps.model.UrlTileProvider;

import java.net.MalformedURLException;
import java.net.URL;

public class AirMapWMSTile extends AirMapFeature {
  private static final double[] mapBound = {-20037508.34789244, 20037508.34789244};
  private static final double FULL = 20037508.34789244 * 2;

    class AIRMapGSUrlTileProvider extends UrlTileProvider {
    private String urlTemplate;
    private int width;
    private int height;
    public AIRMapGSUrlTileProvider(int width, int height, String urlTemplate) {
      super(width, height);
      this.urlTemplate = urlTemplate;
      this.width = width;
      this.height = height;
    }

    @Override
    public synchronized URL getTileUrl(int x, int y, int zoom) {
      if(AirMapWMSTile.this.maximumZ > 0 && zoom > maximumZ) {
          return null;
      }
      if(AirMapWMSTile.this.minimumZ > 0 && zoom < minimumZ) {
          return null;
      }
      double[] bb = getBoundingBox(x, y, zoom);
      String s = this.urlTemplate
          .replace("{minX}", Double.toString(bb[0]))
          .replace("{minY}", Double.toString(bb[1]))
          .replace("{maxX}", Double.toString(bb[2]))
          .replace("{maxY}", Double.toString(bb[3]))
          .replace("{width}", Integer.toString(width))
          .replace("{height}", Integer.toString(height));
      URL url = null;
      try {
        url = new URL(s);
      } catch (MalformedURLException e) {
        throw new AssertionError(e);
      }
      return url;
    }

    private double[] getBoundingBox(int x, int y, int zoom) {
      double tile = FULL / Math.pow(2, zoom);
      return new double[]{
              mapBound[0] + x * tile,
              mapBound[1] - (y + 1) * tile,
              mapBound[0] + (x + 1) * tile,
              mapBound[1] - y * tile
      };
    }

    public void setUrlTemplate(String urlTemplate) {
      this.urlTemplate = urlTemplate;
    }
  }

  private TileOverlayOptions tileOverlayOptions;
  private TileOverlay tileOverlay;
  private AIRMapGSUrlTileProvider tileProvider;

  private String urlTemplate;
  private float zIndex;
  private float maximumZ;
  private float minimumZ;
  private int tileSize;
  private float opacity;

  public AirMapWMSTile(Context context) {
    super(context);
  }

  public void setUrlTemplate(String urlTemplate) {
    this.urlTemplate = urlTemplate;
    if (tileProvider != null) {
      tileProvider.setUrlTemplate(urlTemplate);
    }
    if (tileOverlay != null) {
      tileOverlay.clearTileCache();
    }
  }

  public void setZIndex(float zIndex) {
    this.zIndex = zIndex;
    if (tileOverlay != null) {
      tileOverlay.setZIndex(zIndex);
    }
  }

  public void setMaximumZ(float maximumZ) {
    this.maximumZ = maximumZ;
    if (tileOverlay != null) {
      tileOverlay.clearTileCache();
    }
  }

  public void setMinimumZ(float minimumZ) {
    this.minimumZ = minimumZ;
    if (tileOverlay != null) {
      tileOverlay.clearTileCache();
    }
  }
  public void setTileSize(int tileSize) {
    this.tileSize = tileSize;
    if (tileOverlay != null) {
      tileOverlay.clearTileCache();
    }
  }
  public void setOpacity(float opacity) {
    this.opacity = opacity;
    if (tileOverlay != null) {
        tileOverlay.setTransparency(1-opacity);
    }
  }

  public TileOverlayOptions getTileOverlayOptions() {
    if (tileOverlayOptions == null) {
      tileOverlayOptions = createTileOverlayOptions();
    }
    return tileOverlayOptions;
  }

  private TileOverlayOptions createTileOverlayOptions() {
    TileOverlayOptions options = new TileOverlayOptions();
    options.zIndex(zIndex);
    options.transparency(1-opacity);
    this.tileProvider = new AIRMapGSUrlTileProvider(this.tileSize, this.tileSize, this.urlTemplate);
    options.tileProvider(this.tileProvider);
    return options;
  }

  @Override
  public Object getFeature() {
    return tileOverlay;
  }

  @Override
  public void addToMap(HuaweiMap map) {
    this.tileOverlay = map.addTileOverlay(getTileOverlayOptions());
  }

  @Override
  public void removeFromMap(HuaweiMap map) {
    tileOverlay.remove();
  }
}