wiki-plugin-bikeshare/client/bikeshare.js

Federated Wiki - Bikeshare Plugin

(function() {
  var bind, emit, escape, lineup, nearby, parse;

  escape = function(text) {
    return text.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
  };

  parse = function(text) {
    var config, line, m, _i, _len, _ref;
    config = {
      lines: []
    };
    _ref = text.split(/\n/);
    for (_i = 0, _len = _ref.length; _i < _len; _i++) {
      line = _ref[_i];
      if (m = line.match(/^STATION *(.*)/)) {
        config.station = m[1];
        config.lines.push("<span class=station><i>waiting for stations</i></span>");
      } else if (m = line.match(/^NEARBY/)) {
        config.nearby = true;
      } else {
        config.lines.push(escape(line));
      }
    }
    return config;
  };

  lineup = function($item) {
    var candidates, div, markers, who, _i, _len;
    if (typeof wiki === "undefined" || wiki === null) {
      return [
        {
          lat: 51.5,
          lon: 0.0,
          label: 'North Greenwich'
        }
      ];
    }
    markers = [];
    candidates = $(".item:lt(" + ($('.item').index($item)) + ")");
    if ((who = candidates.filter(".marker-source")).size()) {
      for (_i = 0, _len = who.length; _i < _len; _i++) {
        div = who[_i];
        markers = markers.concat(div.markerData());
      }
    }
    return markers;
  };

  nearby = function(stops, stations) {
    var dist, dx, dy, k, keeps, q, quad, quads, r, rank, s, stop, v, _i, _j, _k, _l, _len, _len1, _len2, _len3, _ref, _results;
    keeps = {};
    for (_i = 0, _len = stops.length; _i < _len; _i++) {
      stop = stops[_i];
      quads = [[], [], [], []];
      for (_j = 0, _len1 = stations.length; _j < _len1; _j++) {
        s = stations[_j];
        s.weblink || (s.weblink = stop.weblink);
        dx = s.lon - stop.lon;
        dy = s.lat - stop.lat;
        quad = (dx + dy > 0 ? 2 : 0) + (dx - dy > 0 ? 1 : 0);
        dist = Math.abs(s.lat - stop.lat) + Math.abs(s.lon - stop.lon);
        quads[quad].push([dist, s]);
      }
      for (_k = 0, _len2 = quads.length; _k < _len2; _k++) {
        q = quads[_k];
        rank = q.sort(function(a, b) {
          return a[0] - b[0];
        });
        _ref = rank.slice(0, 1);
        for (_l = 0, _len3 = _ref.length; _l < _len3; _l++) {
          r = _ref[_l];
          keeps[r[1].name] = r[1];
        }
      }
    }
    _results = [];
    for (k in keeps) {
      v = keeps[k];
      _results.push(v);
    }
    return _results;
  };

  emit = function($item, item) {
    var config, qualification;
    config = parse(item.text);
    $item.append("<p style=\"background-color:#eee;padding:15px; text-align:center\">\n  " + (config.lines.join('<br>')) + "\n</p>");
    if (config.station) {
      qualification = '';
      $.getJSON(config.station, function(result) {
        var markers;
        config.stations = config.nearby ? (markers = lineup($item), markers.length ? (qualification = 'nearby', nearby(markers, result.data.stations)) : result.data.stations) : result.data.stations;
        return $item.find('.station').empty().append("" + config.stations.length + " stations " + qualification);
      });
    }
    $item.addClass('marker-source');
    return $item.get(0).markerData = function() {
      var s, _i, _len, _ref, _results;
      if (config.stations) {
        _ref = config.stations;
        _results = [];
        for (_i = 0, _len = _ref.length; _i < _len; _i++) {
          s = _ref[_i];
          _results.push({
            lat: s.lat,
            lon: s.lon,
            label: s.name,
            weblink: s.weblink
          });
        }
        return _results;
      } else {
        return [];
      }
    };
  };

  bind = function($item, item) {
    return $item.dblclick(function() {
      return wiki.textEditor($item, item);
    });
  };

  if (typeof window !== "undefined" && window !== null) {
    window.plugins.bikeshare = {
      emit: emit,
      bind: bind
    };
  }

  if (typeof module !== "undefined" && module !== null) {
    module.exports = {
      parse: parse
    };
  }

}).call(this);

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