AngularJS Promise.all()

AngularJs: send-manager.controller.js

   c.sendEmail = function () {
        c.savingData = true;
        if (_.isUndefined(c.model.toEmail) && model.templateId === 7) {
            if (model.agreementIds.length === 1 && model.agreementIds[0] === 0) {
                //get all employees
                personnelEmployee.fetchAllWorkingEmployees()
                    .then(function (data) {
                        console.log(data);
                        prepareAndSend();
                    })
            }
            if (model.departmentIds.length === 1 && model.departmentIds[0] === 0) {
                //get all employees from departments
                // personnelEmployee.fetchAllWorkingEmployees()
                //     .then(function (data) {
                //         console.log(data);
                //         prepareAndSend();
                //     })
            }

        } else {
            prepareAndSend();
        }

    };

    function prepareAndSend() {
        var emails = c.model.toEmail.split(/[,\s;]+/);
        if (c.model.sendCopyToSender) {
            emails.push('fake');
        }
        var promises = emails.map(function () {
            return common.getEmailQueueToken().then(
                function (resp) {
                    return resp.data;
                });
        });

        Promise.all(promises).then(function (tokens) {
            c.model.token = tokens.join(',');

            send()
                .then(function (data) {
                    c.savingData = false;
                    c.model.errors = [];
                    notification.success(data.shortMessage);
                    c.close();
                })
                .catch(function (response) {
                    c.savingData = false;
                    if (response.data) {
                        c.model.errors = response.data.errors;
                    }
                    throw response;
                });
        });
    }