"use strict";

// modules
const express = require('express');
const logger = require('debug')('cc:campaigns');

// HTTP status codes by name
const codes = require('./http-codes');

const routerHandling = require('../middleware/router-handling');
const apiAuthenticationMiddleware = require('../middleware/auth-middleware');
const checkMT = require('../middleware/permission-check').checkMT;

// Mongoose Model using mongoDB
const CampaignModel = require('../models/campaign');

const campaigns = express.Router();

// routes **********************
campaigns.route('/')

  .post(apiAuthenticationMiddleware, checkMT, (req, res, next) => {
    const campaign = new CampaignModel(req.body);
    // timestamp and default are set automatically by Mongoose Schema Validation
    campaign.save((err) => {
      if (err) {
        err.status = codes.wrongrequest;
        err.message += ' in fields: ' + Object.getOwnPropertyNames(err.errors);
        return next(err);
      }
      res.status(codes.created);
      res.locals.items = campaign;
      next();
    });
  })

  .all(
    routerHandling.httpMethodNotAllowed
  );

campaigns.route('/:id')
  .get((req, res, next) => {
    CampaignModel.findById(req.params.id, (err, item) => {
      if (err) {
        err.status = codes.servererror;
        return next(err);
      }
      else if (!item) {
        err = new Error("item not found");
        err.status = codes.notfound;
        return next(err);
      }
      res.locals.items = item;
      return next();
    });
  })
  .all(
    routerHandling.httpMethodNotAllowed
  );

// this middleware function can be used, if you like or remove it
// it looks for object(s) in res.locals.items and if they exist, they are send to the client as json
campaigns.use(routerHandling.emptyResponse);

module.exports = campaigns;