function collector(key, nextKey, index, startsWith, num, callback, buffer) {
var lines = buffer.toString().split('\n'),
matches = lines.map(function (line) {
return line.substring(0, line.indexOf(' '));
});
//console.log(' got lines for key ', key, lines.length);
// we got bunch of matches for key - now search within for startsWith
if (startsWith !== key) {
// binary search for startsWith within set of matches
var ind = _.sortedIndex(matches, startsWith);
if (ind >= lines.length || matches[ind].indexOf(startsWith) === -1) {
callback && callback([], startsWith);
resolve([]);
return;
}
var trie = new Trie();
trie.addStrings(matches);
//console.log('Trie > ', trie.matchesWithPrefix( startsWith ));
matches = trie.keysWithPrefix(startsWith);
}
var words = _.sample(matches, num);
callback && callback(words, startsWith);
resolve(words);
}
_.indexOf = function(array, item, isSorted) {
if (array == null) return -1;
var i, l;
if (isSorted) {
i = _.sortedIndex(array, item);
return array[i] === item ? i : -1;
}
if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item);
for (i = 0, l = array.length; i < l; i++) if (i in array && array[i] === item) return i;
return -1;
};
ChatRoom.prototype.user_connect = function (user) {
var index = _.sortedIndex(users, user, iterator('fn', 'ln')),
u_last_active = (this.last_active = (new Date).getTime()) / 1000;
console.log('index is ' + index);
if (sids[aid]) {
// if user is already currently connected, i.e. opens chat in a new tab
users[index]['la'] = u_last_active;
users[index]['si'].push(user['si']);
_.uniq(users[index]['si']);
}
user['la'] = u_last_active;
user['si'] = [user[si]];
users.splice(index, 0, user);
};
var maxLoopsAtSameTime = 500;//to prevent endless loops.
function insertByTime(array, item) {
var insertionIndex = _.sortedIndex(array, item, 'time');
array.splice(insertionIndex, 0, item);
}