// ==UserScript==
// ==UserScript==
// @id             iitc-plugin-bing-maps
// @name           IITC plugin: Bing maps
// @category       Map Tiles
// @version        0.1.0.@@DATETIMEVERSION@@
// @namespace      https://github.com/jonatkins/ingress-intel-total-conversion
// @updateURL      @@UPDATEURL@@
// @downloadURL    @@DOWNLOADURL@@
// @description    [@@BUILDNAME@@-@@BUILDDATE@@] Add the maps.bing.com map layers (
// @include        https://www.ingress.com/intel*
// @include        http://www.ingress.com/intel*
// @match          https://www.ingress.com/intel*
// @match          http://www.ingress.com/intel*
// @grant          none
// ==/UserScript==

@@PLUGINSTART@@

// PLUGIN START ////////////////////////////////////////////////////////

window.plugin.mapBing = function() {};

window.plugin.mapBing.setupBingLeaflet = function() {
//---------------------------------------------------------------------
// https://github.com/shramov/leaflet-plugins/blob/master/layer/tile/Bing.js
L.BingLayer = L.TileLayer.extend({
	options: {
		subdomains: [0, 1, 2, 3],
		type: 'Aerial',
		attribution: 'Bing',
		culture: ''
	},

	initialize: function(key, options) {
		L.Util.setOptions(this, options);

		this._key = key;
		this._url = null;
		this.meta = {};
		this.loadMetadata();
	},

	tile2quad: function(x, y, z) {
		var quad = '';
		for (var i = z; i > 0; i--) {
			var digit = 0;
			var mask = 1 << (i - 1);
			if ((x & mask) != 0) digit += 1;
			if ((y & mask) != 0) digit += 2;
			quad = quad + digit;
		}
		return quad;
	},

	getTileUrl: function(p, z) {
		var z = this._getZoomForUrl();
		var subdomains = this.options.subdomains,
			s = this.options.subdomains[Math.abs((p.x + p.y) % subdomains.length)];
		return this._url.replace('{subdomain}', s)
				.replace('{quadkey}', this.tile2quad(p.x, p.y, z))
				.replace('{culture}', this.options.culture);
	},

	loadMetadata: function() {
		// TODO? modify this to cache the metadata in - say - sessionStorage? localStorage?
		var _this = this;
		var cbid = '_bing_metadata_' + L.Util.stamp(this);
		window[cbid] = function (meta) {
			_this.meta = meta;
			window[cbid] = undefined;
			var e = document.getElementById(cbid);
			e.parentNode.removeChild(e);
			if (meta.errorDetails) {
				alert("Got metadata" + meta.errorDetails);
				return;
			}
			_this.initMetadata();
		};
		var url = "//dev.virtualearth.net/REST/v1/Imagery/Metadata/" + this.options.type + "?include=ImageryProviders&jsonp=" + cbid + "&key=" + this._key;
		var script = document.createElement("script");
		script.type = "text/javascript";
		script.src = url;
		script.id = cbid;
		document.getElementsByTagName("head")[0].appendChild(script);
	},

	initMetadata: function() {
		var r = this.meta.resourceSets[0].resources[0];
		this.options.subdomains = r.imageUrlSubdomains;
		this._url = r.imageUrl;
		this._providers = [];
		for (var i = 0; i < r.imageryProviders.length; i++) {
			var p = r.imageryProviders[i];
			for (var j = 0; j < p.coverageAreas.length; j++) {
				var c = p.coverageAreas[j];
				var coverage = {zoomMin: c.zoomMin, zoomMax: c.zoomMax, active: false};
				var bounds = new L.LatLngBounds(
						new L.LatLng(c.bbox[0]+0.01, c.bbox[1]+0.01),
						new L.LatLng(c.bbox[2]-0.01, c.bbox[3]-0.01)
				);
				coverage.bounds = bounds;
				coverage.attrib = p.attribution;
				this._providers.push(coverage);
			}
		}
		this._update();
	},

	_update: function() {
		if (this._url == null || !this._map) return;
		this._update_attribution();
		L.TileLayer.prototype._update.apply(this, []);
	},

	_update_attribution: function() {
		var bounds = this._map.getBounds();
		var zoom = this._map.getZoom();
		for (var i = 0; i < this._providers.length; i++) {
			var p = this._providers[i];
			if ((zoom <= p.zoomMax && zoom >= p.zoomMin) &&
					bounds.intersects(p.bounds)) {
				if (!p.active)
					this._map.attributionControl.addAttribution(p.attrib);
				p.active = true;
			} else {
				if (p.active)
					this._map.attributionControl.removeAttribution(p.attrib);
				p.active = false;
			}
		}
	},

	onRemove: function(map) {
		for (var i = 0; i < this._providers.length; i++) {
			var p = this._providers[i];
			if (p.active) {
				this._map.attributionControl.removeAttribution(p.attrib);
				p.active = false;
			}
		}
        	L.TileLayer.prototype.onRemove.apply(this, [map]);
	}
});
//---------------------------------------------------------------------
}
	

window.plugin.mapBing.setup = function() {
  window.plugin.mapBing.setupBingLeaflet();
	
  //set this to your API key
  var bingApiKey = 'ArR2hTa2C9cRQZT-RmgrDkfvh3PwEVRl0gB34OO4wJI7vQNElg3DDWvbo5lfUs3p';

  var bingTypes = {
    'Road': "Road",
    'Aerial': "Aerial",
    'AerialWithLabels': "Aerial with labels",
  };

  for (type in bingTypes) {
    var name = bingTypes[type];
    var bingMap = new L.BingLayer(bingApiKey, {type: type, maxZoom:20});
    layerChooser.addBaseLayer(bingMap, 'Bing '+name);
  }

};

var setup = window.plugin.mapBing.setup;

// PLUGIN END //////////////////////////////////////////////////////////


@@PLUGINEND@@