Meteor.methods({

groupsList: function(nameFilter, limit, sort) {

check(nameFilter, Match.Optional(String));

check(limit, Match.Optional(Number));

check(sort, Match.Optional(String));

if (!Meteor.userId()) {

throw new Meteor.Error('error-invalid-user', 'Invalid user', { method: 'groupsList' });

}

let options = {

fields: { name: 1 },

sort: { name: 1 }

};

//Verify the limit param is a number

if (_.isNumber(limit)) {

options.limit = limit;

}

//Verify there is a sort option and it's a string

if (_.trim(sort)) {

switch (sort) {

case 'name':

options.sort = { name: 1 };

break;

case 'msgs':

options.sort = { msgs: -1 };

break;

}

}

//Determine if they are searching or not, base it upon the name field

if (nameFilter) {

return { groups: RocketChat.models.Rooms.findByTypeAndNameContainingUsername('p', new RegExp(s.trim(s.escapeRegExp(nameFilter)), 'i'), Meteor.user().username, options).fetch() };

} else {

let roomIds = _.pluck(RocketChat.models.Subscriptions.findByTypeAndUserId('p', Meteor.userId()).fetch(), 'rid');

return { groups: RocketChat.models.Rooms.findByIds(roomIds, options).fetch() };

}

}

});