node/node_modules/derby-examples/sink/lib/app/leaderboard.js

// Generated by CoffeeScript 1.3.1
var addPlayer, app, get, randomScore, ready, render, view, _ref;

_ref = app = require('./index'), get = _ref.get, ready = _ref.ready, view = _ref.view;

render = require('./shared').render;

randomScore = function() {
  return Math.floor(Math.random() * 20) * 5;
};

addPlayer = function(players, name) {
  var id;
  id = players.id();
  return players.set(id, {
    id: id,
    name: name,
    score: randomScore()
  });
};

get('/leaderboard', function(page, model) {
  return model.subscribe('leaderboard', function(err, leaderboard) {
    var name, players, _i, _len, _ref1;
    players = leaderboard.at('players');
    if (!players.get()) {
      _ref1 = ['Parker Blue', 'Kelly Green', 'Winston Fairbanks'];
      for (_i = 0, _len = _ref1.length; _i < _len; _i++) {
        name = _ref1[_i];
        addPlayer(players, name);
      }
    }
    leaderboard.fn('_list', players, function(items) {
      var id, item, out;
      out = [];
      for (id in items) {
        item = items[id];
        if (item != null ? item.id : void 0) {
          out.push(item);
        }
      }
      return out.sort(function(a, b) {
        return (b.score - a.score) || (b.id > a.id);
      });
    });
    model.ref(leaderboard.at('_selected'), players, leaderboard.at('_selectedId'));
    return render(page, 'leaderboard');
  });
});

ready(function(model) {
  var leaderboard, newPlayer, players, selected, selectedId;
  leaderboard = model.at('leaderboard');
  players = leaderboard.at('players');
  newPlayer = leaderboard.at('_newPlayer');
  selectedId = leaderboard.at('_selectedId');
  selected = leaderboard.at('_selected');
  return app.leaderboard = {
    add: function() {
      var name;
      if (!(name = newPlayer.get())) {
        return;
      }
      addPlayer(players, name);
      return newPlayer.set('');
    },
    remove: function() {
      var id;
      id = selected.get('id');
      return players.del(id);
    },
    incr: function() {
      return selected.incr('score', 5);
    },
    decr: function() {
      return selected.incr('score', -5);
    },
    select: function(e, el) {
      var id;
      id = model.at(el).get('id');
      return selectedId.set(id);
    },
    deselect: function() {
      return selectedId.set(null);
    }
  };
});