/users/authenticate:
    # binds a127 app logic to a route
    x-swagger-router-controller: users
    post:
      tags:
        - Users
      summary: Authenticate a user either with credentials or facebook ID.
      description: ""
      operationId: authenticate
      parameters:
        - name: body
          in: body
          description: Contains user ID and GCM token
          required: true
          schema:
            $ref: "#/definitions/Authenticate"
      responses:
        "200":
          description: Success
          schema:
            # a pointer to a definition
              $ref: "#/definitions/UserResponse"
        "405":
          description: Invalid input
        "500":
          description: General error message


'use strict';

var util = require('util');
var database = require('./database');
var sql = database.sql;
var config = database.config;

module.exports = {
  authenticate: authenticate
};

function authenticate(req, res) {
  var username = req.swagger.params.body.value.username;
  var password = req.swagger.params.body.value.password;
  var facebookId = req.swagger.params.body.value.facebookId;

    sql.connect(config).then(function() {
    // Query

      new sql.Request()
      .input('username', sql.NVarChar, username)
      .input('facebookId', sql.NVarChar, facebookId)
      .execute('UserAuthentication', function(err, recordsets, returnValue) {
          // ... error checks

          console.dir(recordsets[0]);
          res.json(recordsets[0]);
      });

    }).catch(function(err) {
      // ... error checks
      console.dir(err);
    });

  // this sends back a JSON response which is a single string
}