var Promise = require('bluebird') module.exports = function GroupServiceFactory( socket , TransactionService ) { var groupService = { } groupService.invite = function (device) { if (!device.usable) { return Promise.reject(new Error('Device is not usable')) } var tx = TransactionService.create(device) socket.emit('group.invite', device.channel, tx.channel, { requirements: { serial: { value: device.serial , match: 'exact' } } }) return tx.promise.then(function(result) { if (!result.success) { throw new Error('Device refused to join the group') } return result.device }) } groupService.kick = function (device, force) { if (!force && !device.usable) { return Promise.reject(new Error('Device is not usable')) } var tx = TransactionService.create(device) socket.emit('group.kick', device.channel, tx.channel, { requirements: { serial: { value: device.serial , match: 'exact' } } }) return tx.promise.then(function(result) { if (!result.success) { throw new Error('Device refused to be kicked from the group') } return result.device }) } return groupService }