"use strict";

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

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

const routerHandling = require('../middleware/router-handling');

// Mongoose Model using mongoDB
const UserModel = require('../models/user');
const AwardingModel = require('../models/awarding');
const PromotionModel = require('../models/promotion');

// result set for proposer(appUser) population
const resultSet = {
  '__v': 0,
  'updatedAt': 0,
  'timestamp': 0,
  'password': 0,
  'permission': 0,
  'secret': 0,
  'activated': 0
};

const request = express.Router();


// routes **********************
request.route('/award')

  .post((req, res, next) => {
    const award = new AwardingModel(req.body);
    award.confirmed = 0;
    award.proposer = req.user._id;
    // timestamp and default are set automatically by Mongoose Schema Validation
    award.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 = award;
      next();
    });
  })

  .all(
    routerHandling.httpMethodNotAllowed
  );

request.route('/promotion')

  .get((req, res, next) => {
    const squadFilter = req.query.squadId;
    let userIds = [];
    UserModel.find({squadId: squadFilter}, (err, items) => {
      if (err) {
        err.status = codes.servererror;
        return next(err);
      }
      for (let item of items) {
        userIds.push(item._id);
      }
      PromotionModel.find({userId: {"$in": userIds}}, {}, {sort: {timestamp: 'desc'}}).populate('userId').populate('proposer', resultSet).exec((err, items) => {
        if (err) {
          err.status = codes.servererror;
          return next(err);
        }

        if (items && items.length > 0) {
          res.locals.items = items;
        } else {
          res.locals.items = [];
        }
        res.locals.processed = true;
        next();
      })
    });

  })

  .post((req, res, next) => {
    const promotion = new PromotionModel(req.body);
    promotion.confirmed = 0;
    promotion.proposer = req.user._id;
    // timestamp and default are set automatically by Mongoose Schema Validation
    promotion.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 = promotion;
      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
request.use(routerHandling.emptyResponse);


module.exports = request;