oldhaven/public/javascripts/coffee/vkontakte.js

var Vkontakte;
Vkontakte = (function() {
  Vkontakte.prototype.qr = null;
  Vkontakte.prototype.api_id = null;
  function Vkontakte(api_id) {
    this.api_id = api_id;
  }
  Vkontakte.prototype.getApiId = function() {
    return this.api_id;
  };
  Vkontakte.prototype.init = function() {
    this.qr = [];
    window.vkAsyncInit = function() {
      VK.init({
        apiId: _vkontakte.getApiId()
      });
      return VK.Auth.getLoginStatus(function(response) {
        return _vkontakte.authInfo(response);
      });
    };
    return setTimeout(function() {
      return $('#vk_api_transport').append('<script async="async" type="text/javascript" src="http://vkontakte.ru/js/api/openapi.js"></script>');
    }, 0);
  };
  Vkontakte.prototype.authInfo = function(response) {
    var _session;
    if (typeof response !== 'undefined' && response.session) {
      _session = new Session(response.session);
      $('#vk_login, .auth-notice').hide();
      $('#vk_logout').css({
        display: 'block'
      });
      if ($('#search_field').length > 0) {
        $('#search_field').focus();
      }
      _session.query('/user/auth', {}, function(ar) {
        if (ar.newbie) {
          VK.Api.call('getVariable', {
            key: 1281
          }, function(r) {
            return _session.query('/user/update', {
              name: r.response
            }, function(ar2) {
              _session.setUser(ar2.user);
              $('.header-container .hello .greating').html(_beathaven.ls('HELLO') + ', <span class="settings">' + (_session.getUser().name ? _session.getUser().name : '%username%') + '</span>!');
              window._session = _session;
              _ajax.detectPage();
              return $('.fullscreen').hide();
            });
          });
        } else {
          _session.setUser(ar.user);
        }
        $('.header-container .hello').show();
        $('.header-container .hello .greating').html(_beathaven.ls('HELLO') + ', <span class="settings">' + (_session.getUser().name ? _session.getUser().name : '%username%') + '</span>!');
        window._session = _session;
        _ajax.detectPage();
        return $('.fullscreen').hide();
      });
      if (response.session.expire != null) {
        return setTimeout(function() {
          _vkontakte.auth();
          return false;
        }, response.session.expire * 1000 - new Date().getTime() + 1000);
      }
    } else {
      _session = new Session({});
      _session.setUser({});
      $('#vk_login').css({
        display: 'block'
      });
      $('.auth-notice').css('left', $('#vk_login').offset().left).show();
      $('.header-container .hello').hide();
      window._session = _session;
      _ajax.detectPage();
      return $('.fullscreen').hide();
    }
  };
  Vkontakte.prototype.auth = function() {
    VK.Auth.getLoginStatus(function(response) {
      _vkontakte.authInfo(response);
      return false;
    }, 8);
    return false;
  };
  Vkontakte.prototype.loadTracksData = function(artist, track, duration, callback) {
    var query, track_prepared, url;
    track_prepared = track.replace(/\(.*\)/i, '').split('/')[0];
    query = artist + ' ' + track_prepared;
    if (url = _vkontakte.getQR(query)) {
      return callback(url);
    } else {
      return VK.Api.call('audio.search', {
        q: query
      }, function(r) {
        url = _vkontakte.matchPerfectResult(r.response, artist, track, duration);
        _vkontakte.addQR(query, url);
        return callback(url);
      });
    }
  };
  Vkontakte.prototype.matchPerfectResult = function(data, artist, track, duration) {
    var best_result, best_score, delta, item, score, _i, _len;
    duration = duration.split(':');
    duration = parseInt(duration[0], 10) * 60 + parseInt(duration[1], 10);
    best_score = 0;
    best_result = null;
    for (_i = 0, _len = data.length; _i < _len; _i++) {
      item = data[_i];
      if (typeof item === 'object') {
        score = 0;
        item.artist = item.artist.trim();
        item.title = item.title.trim();
        if (item.artist === artist) {
          score += 10;
        } else if (item.artist.split(artist).length === 2) {
          score += 5;
        } else if (item.title.split(artist).length === 2) {
          score += 4;
        }
        if (item.title === track) {
          score += 10;
        } else if (item.title.split(track).length === 2) {
          score += 5;
        }
        if (parseInt(item.duration, 10) === duration) {
          score += 15;
        } else {
          delta = Math.abs(parseInt(item.duration, 10) - duration);
          if (delta < 10) {
            score += 10 - delta;
          }
        }
        if (score > best_score) {
          best_score = score;
          best_result = item;
        }
        if (score === 35) {
          return best_result.url;
        }
      }
    }
    return best_result.url;
  };
  Vkontakte.prototype.addQR = function(query, url) {
    return this.qr[query] = url;
  };
  Vkontakte.prototype.getQR = function(query) {
    if (this.qr[query] != null) {
      this.qr[query];
    }
    return false;
  };
  return Vkontakte;
})();
$('#vk_login, .auth-notice').live('click', function() {
  VK.Auth.login(function(response) {
    _vkontakte.authInfo(response);
    return false;
  }, 8);
  return false;
});
$('#vk_logout').live('click', function() {
  _ajax.go('/search/');
  VK.Auth.logout(function(response) {
    _vkontakte.authInfo(response);
    return false;
  });
  return false;
});