// UTILS + MISC  ///////////////////////////////////////////////////////

window.aboutIITC = function() {
  var v = (script_info.script && script_info.script.version || script_info.dateTimeVersion) + ' ['+script_info.buildName+']';
  if (typeof android !== 'undefined' && android && android.getVersionName) {
    v += '[IITC Mobile '+android.getVersionName()+']';
  }

  var plugins = '<ul>';
  for (var i in bootPlugins) {
    var info = bootPlugins[i].info;
    if (info) {
      var pname = info.script && info.script.name || info.pluginId;
      if (pname.substr(0,13) == 'IITC plugin: ' || pname.substr(0,13) == 'IITC Plugin: ') {
        pname = pname.substr(13);
      }
      var pvers = info.script && info.script.version || info.dateTimeVersion;

      var ptext = pname + ' - ' + pvers;
      if (info.buildName != script_info.buildName) {
        ptext += ' ['+(info.buildName||'<i>non-standard plugin</i>')+']';
      }

      plugins += '<li>'+ptext+'</li>';
    } else {
      // no 'info' property of the plugin setup function - old plugin wrapper code
      // could attempt to find the "window.plugin.NAME = function() {};" line it's likely to have..?
      plugins += '<li>(unknown plugin: index '+i+')</li>';
    }
  }
  plugins += '</ul>';

  var attrib = '@@INCLUDEMD:ATTRIBUTION.md@@';
  var contrib = '@@INCLUDEMD:CONTRIBS.md@@'

  var a = ''
  + '  <div><b>About IITC</b></div> '
  + '  <div>Ingress Intel Total Conversion</div> '
  + '  <hr>'
  + '  <div>'
  + '    <a href="http://iitc.jonatkins.com/" target="_blank">IITC Homepage</a><br />'
  + '     On the script’s homepage you can:'
  + '     <ul>'
  + '       <li>Find Updates</li>'
  + '       <li>Get Plugins</li>'
  + '       <li>Report Bugs</li>'
  + '       <li>Contribute!</li>'
  + '     </ul>'
  + '  </div>'
  + '  <div>'
  + '    MapQuest OSM tiles Courtesy of <a href="http://www.mapquest.com/" target="_blank">MapQuest</a> <img src="https://developer.mapquest.com/content/osm/mq_logo.png">'
  + '  </div>'
  + '  <hr>'
  + '  <div>Version: ' + v + '</div>'
  + '  <div>Plugins: ' + plugins + '</div>'
  + '  <hr>'
  + '  <div>' + attrib + '</div>'
  + '  <hr>'
  + '  <div>' + contrib + '</div>';

  dialog({
    title: 'IITC ' + v,
    html: a,
    dialogClass: 'ui-dialog-aboutIITC'
  });
}


window.layerGroupLength = function(layerGroup) {
  var layersCount = 0;
  var layers = layerGroup._layers;
  if (layers)
    layersCount = Object.keys(layers).length;
  return layersCount;
}

// retrieves parameter from the URL?query=string.
window.getURLParam = function(param) {
  var items = window.location.search.substr(1).split('&');
  if (items == "") return "";

  for (var i=0; i<items.length; i++) {
    var item = items[i].split('=');

    if (item[0] == param) {
      var val = item.length==1 ? '' : decodeURIComponent (item[1].replace(/\+/g,' '));
      return val;
    }
  }

  return '';
}

// read cookie by name.
// http://stackoverflow.com/a/5639455/1684530 by cwolves
var cookies;
window.readCookie = function(name,c,C,i){
  if(cookies) return cookies[name];
  c = document.cookie.split('; ');
  cookies = {};
  for(i=c.length-1; i>=0; i--){
    C = c[i].split('=');
    cookies[C[0]] = unescape(C[1]);
  }
  return cookies[name];
}

window.writeCookie = function(name, val) {
  document.cookie = name + "=" + val + '; expires=Thu, 31 Dec 2020 23:59:59 GMT; path=/';
}

window.eraseCookie = function(name) {
  document.cookie = name + '=; expires=Thu, 1 Jan 1970 00:00:00 GMT; path=/';
}

//certain values were stored in cookies, but we're better off using localStorage instead - make it easy to convert
window.convertCookieToLocalStorage = function(name) {
  var cookie=readCookie(name);
  if(cookie !== undefined) {
    console.log('converting cookie '+name+' to localStorage');
    if(localStorage[name] === undefined) {
      localStorage[name] = cookie;
    }
    eraseCookie(name);
  }
}

// add thousand separators to given number.
// http://stackoverflow.com/a/1990590/1684530 by Doug Neiner.
window.digits = function(d) {
  // U+2009 - Thin Space. Recommended for use as a thousands separator...
  // https://en.wikipedia.org/wiki/Space_(punctuation)#Table_of_spaces
  return (d+"").replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "$1&#8201;");
}


window.zeroPad = function(number,pad) {
  number = number.toString();
  var zeros = pad - number.length;
  return Array(zeros>0?zeros+1:0).join("0") + number;
}


// converts javascript timestamps to HH:mm:ss format if it was today;
// otherwise it returns YYYY-MM-DD
window.unixTimeToString = function(time, full) {
  if(!time) return null;
  var d = new Date(typeof time === 'string' ? parseInt(time) : time);
  var time = d.toLocaleTimeString();
//  var time = zeroPad(d.getHours(),2)+':'+zeroPad(d.getMinutes(),2)+':'+zeroPad(d.getSeconds(),2);
  var date = d.getFullYear()+'-'+zeroPad(d.getMonth()+1,2)+'-'+zeroPad(d.getDate(),2);
  if(typeof full !== 'undefined' && full) return date + ' ' + time;
  if(d.toDateString() == new Date().toDateString())
    return time;
  else
    return date;
}

// converts a javascript time to a precise date and time (optionally with millisecond precision)
// formatted in ISO-style YYYY-MM-DD hh:mm:ss.mmm - but using local timezone
window.unixTimeToDateTimeString = function(time, millisecond) {
  if(!time) return null;
  var d = new Date(typeof time === 'string' ? parseInt(time) : time);
  return d.getFullYear()+'-'+zeroPad(d.getMonth()+1,2)+'-'+zeroPad(d.getDate(),2)
    +' '+zeroPad(d.getHours(),2)+':'+zeroPad(d.getMinutes(),2)+':'+zeroPad(d.getSeconds(),2)+(millisecond?'.'+zeroPad(d.getMilliseconds(),3):'');
}

window.unixTimeToHHmm = function(time) {
  if(!time) return null;
  var d = new Date(typeof time === 'string' ? parseInt(time) : time);
  var h = '' + d.getHours(); h = h.length === 1 ? '0' + h : h;
  var s = '' + d.getMinutes(); s = s.length === 1 ? '0' + s : s;
  return  h + ':' + s;
}

window.formatInterval = function(seconds,maxTerms) {

  var d = Math.floor(seconds / 86400);
  var h = Math.floor((seconds % 86400) / 3600);
  var m = Math.floor((seconds % 3600) / 60);
  var s = seconds % 60;

  var terms = [];
  if (d > 0) terms.push(d+'d');
  if (h > 0) terms.push(h+'h');
  if (m > 0) terms.push(m+'m');
  if (s > 0 || terms.length==0) terms.push(s+'s');

  if (maxTerms) terms = terms.slice(0,maxTerms);

  return terms.join(' ');
}


window.rangeLinkClick = function() {
  if(window.portalRangeIndicator)
    window.map.fitBounds(window.portalRangeIndicator.getBounds());
  if(window.isSmartphone())
    window.show('map');
}

window.showPortalPosLinks = function(lat, lng, name) {
  var encoded_name = 'undefined';
  if(name !== undefined) {
    encoded_name = encodeURIComponent(name);
  }

  if (typeof android !== 'undefined' && android && android.intentPosLink) {
    android.intentPosLink(lat, lng, map.getZoom(), name, true);
  } else {
    var qrcode = '<div id="qrcode"></div>';
    var script = '<script>$(\'#qrcode\').qrcode({text:\'GEO:'+lat+','+lng+'\'});</script>';
    var gmaps = '<a href="https://maps.google.com/maps?ll='+lat+','+lng+'&q='+lat+','+lng+'%20('+encoded_name+')">Google Maps</a>';
    var bingmaps = '<a href="http://www.bing.com/maps/?v=2&cp='+lat+'~'+lng+'&lvl=16&sp=Point.'+lat+'_'+lng+'_'+encoded_name+'___">Bing Maps</a>';
    var osm = '<a href="http://www.openstreetmap.org/?mlat='+lat+'&mlon='+lng+'&zoom=16">OpenStreetMap</a>';
    var latLng = '<span>&lt;' + lat + ',' + lng +'&gt;</span>';
    dialog({
      html: '<div style="text-align: center;">' + qrcode + script + gmaps + '; ' + bingmaps + '; ' + osm + '<br />' + latLng + '</div>',
      title: name,
      id: 'poslinks'
    });
  }
}

window.isTouchDevice = function() {
  return 'ontouchstart' in window // works on most browsers
      || 'onmsgesturechange' in window; // works on ie10
};

window.androidCopy = function(text) {
  if(typeof android === 'undefined' || !android || !android.copy)
    return true; // i.e. execute other actions
  else
    android.copy(text);
  return false;
}

window.androidPermalink = function() {
  if(typeof android === 'undefined' || !android || !android.intentPosLink)
    return true; // i.e. execute other actions

  var center = map.getCenter();
  android.intentPosLink(center.lat, center.lng, map.getZoom(), "Selected map view", false);
  return false;
}



window.getMinPortalLevel = function() {
  var z = map.getZoom();
  z = getDataZoomForMapZoom(z);
  return getMapZoomTileParameters(z).level;
}

// returns number of pixels left to scroll down before reaching the
// bottom. Works similar to the native scrollTop function.
window.scrollBottom = function(elm) {
  if(typeof elm === 'string') elm = $(elm);
  return elm.get(0).scrollHeight - elm.innerHeight() - elm.scrollTop();
}

window.zoomToAndShowPortal = function(guid, latlng) {
  map.setView(latlng, 17);
  // if the data is available, render it immediately. Otherwise defer
  // until it becomes available.
  if(window.portals[guid])
    renderPortalDetails(guid);
  else
    urlPortal = guid;
}

window.selectPortalByLatLng = function(lat, lng) {
  if(lng === undefined && lat instanceof Array) {
    lng = lat[1];
    lat = lat[0];
  } else if(lng === undefined && lat instanceof L.LatLng) {
    lng = lat.lng;
    lat = lat.lat;
  }
  for(var guid in window.portals) {
    var latlng = window.portals[guid].getLatLng();
    if(latlng.lat == lat && latlng.lng == lng) {
      renderPortalDetails(guid);
      return;
    }
  }

  // not currently visible
  urlPortalLL = [lat, lng];
  map.setView(urlPortalLL, 17);
};

String.prototype.capitalize = function() {
    return this.charAt(0).toUpperCase() + this.slice(1).toLowerCase();
}

// http://stackoverflow.com/a/646643/1684530 by Bergi and CMS
if (typeof String.prototype.startsWith !== 'function') {
  String.prototype.startsWith = function (str){
    return this.slice(0, str.length) === str;
  };
}

// escape a javascript string, so quotes and backslashes are escaped with a backslash
// (for strings passed as parameters to html onclick="..." for example)
window.escapeJavascriptString = function(str) {
  return (str+'').replace(/[\\"']/g,'\\$&');
}

//escape special characters, such as tags
window.escapeHtmlSpecialChars = function(str) {
  var div = document.createElement(div);
  var text = document.createTextNode(str);
  div.appendChild(text);
  return div.innerHTML;
}

window.prettyEnergy = function(nrg) {
  return nrg> 1000 ? Math.round(nrg/1000) + ' k': nrg;
}

window.setPermaLink = function(elm) {
  var c = map.getCenter();
  var lat = Math.round(c.lat*1E6)/1E6;
  var lng = Math.round(c.lng*1E6)/1E6;
  var qry = 'll='+lat+','+lng+'&z=' + map.getZoom();
  $(elm).attr('href',  '/intel?' + qry);
}

window.uniqueArray = function(arr) {
  return $.grep(arr, function(v, i) {
    return $.inArray(v, arr) === i;
  });
}

window.genFourColumnTable = function(blocks) {
  var t = $.map(blocks, function(detail, index) {
    if(!detail) return '';
    if(index % 2 === 0)
      return '<tr><td>'+detail[1]+'</td><th>'+detail[0]+'</th>';
    else
      return '    <th>'+detail[0]+'</th><td>'+detail[1]+'</td></tr>';
  }).join('');
  if(t.length % 2 === 1) t + '<td></td><td></td></tr>';
  return t;
}


// converts given text with newlines (\n) and tabs (\t) to a HTML
// table automatically.
window.convertTextToTableMagic = function(text) {
  // check if it should be converted to a table
  if(!text.match(/\t/)) return text.replace(/\n/g, '<br>');

  var data = [];
  var columnCount = 0;

  // parse data
  var rows = text.split('\n');
  $.each(rows, function(i, row) {
    data[i] = row.split('\t');
    if(data[i].length > columnCount) columnCount = data[i].length;
  });

  // build the table
  var table = '<table>';
  $.each(data, function(i, row) {
    table += '<tr>';
    $.each(data[i], function(k, cell) {
      var attributes = '';
      if(k === 0 && data[i].length < columnCount) {
        attributes = ' colspan="'+(columnCount - data[i].length + 1)+'"';
      }
      table += '<td'+attributes+'>'+cell+'</td>';
    });
    table += '</tr>';
  });
  table += '</table>';
  return table;
}

// Given 3 sets of points in an array[3]{lat, lng} returns the area of the triangle
window.calcTriArea = function(p) {
  return Math.abs((p[0].lat*(p[1].lng-p[2].lng)+p[1].lat*(p[2].lng-p[0].lng)+p[2].lat*(p[0].lng-p[1].lng))/2);
}

// Update layerGroups display status to window.overlayStatus and localStorage 'ingress.intelmap.layergroupdisplayed'
window.updateDisplayedLayerGroup = function(name, display) {
  overlayStatus[name] = display;
  localStorage['ingress.intelmap.layergroupdisplayed'] = JSON.stringify(overlayStatus);
}

// Read layerGroup status from window.overlayStatus if it was added to map,
// read from cookie if it has not added to map yet.
// return 'defaultDisplay' if both overlayStatus and cookie didn't have the record
window.isLayerGroupDisplayed = function(name, defaultDisplay) {
  if(typeof(overlayStatus[name]) !== 'undefined') return overlayStatus[name];

  convertCookieToLocalStorage('ingress.intelmap.layergroupdisplayed');
  var layersJSON = localStorage['ingress.intelmap.layergroupdisplayed'];
  if(!layersJSON) return defaultDisplay;

  var layers = JSON.parse(layersJSON);
  // keep latest overlayStatus
  overlayStatus = $.extend(layers, overlayStatus);
  if(typeof(overlayStatus[name]) === 'undefined') return defaultDisplay;
  return overlayStatus[name];
}

window.addLayerGroup = function(name, layerGroup, defaultDisplay) {
  if (defaultDisplay === undefined) defaultDisplay = true;

  if(isLayerGroupDisplayed(name, defaultDisplay)) map.addLayer(layerGroup);
  layerChooser.addOverlay(layerGroup, name);
}

window.clampLat = function(lat) {
  // the map projection used does not handle above approx +- 85 degrees north/south of the equator
  if (lat > 85.051128)
    lat = 85.051128;
  else if (lat < -85.051128)
    lat = -85.051128;
  return lat;
}

window.clampLng = function(lng) {
  if (lng > 179.999999)
    lng = 179.999999;
  else if (lng < -180.0)
    lng = -180.0;
  return lng;
}


window.clampLatLng = function(latlng) {
  return new L.LatLng ( clampLat(latlng.lat), clampLng(latlng.lng) );
}

window.clampLatLngBounds = function(bounds) {
  return new L.LatLngBounds ( clampLatLng(bounds.getSouthWest()), clampLatLng(bounds.getNorthEast()) );
}


// Fix Leaflet: handle touchcancel events in Draggable
L.Draggable.prototype._onDownOrig = L.Draggable.prototype._onDown;
L.Draggable.prototype._onDown = function(e) {
  L.Draggable.prototype._onDownOrig.apply(this, arguments);

  if(e.type === "touchstart") {
    L.DomEvent.on(document, "touchcancel", this._onUp, this);
  }
}