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'use strict';const mongoose = require('../../lib');const Benchmark = require('benchmark');
const suite = new Benchmark.Suite();
const Schema = mongoose.Schema;const mongoClient = require('mongodb').MongoClient;
// to make things work in the way the are normally described online.../* *global.Schema = Schema; *global.mongoose = mongoose; */
/** * These are all the benchmark tests for deleting data */
mongoose.connect('mongodb://localhost/mongoose-bench', function (err) {  if (err) {    throw err;  }  mongoClient.connect('mongodb://localhost', function (err, client) {    if (err) {      throw err;    }
    const db = client.db('mongoose-bench');
    const UserSchema = new Schema({      name: String,      age: Number,      likes: [String],      address: String,    });
    const User = mongoose.model('User', UserSchema);    const user = db.collection('user');
    const mIds = [];    const dIds = [];
    const data = {      name: 'name',      age: 0,      likes: ['dogs', 'cats', 'pizza'],      address: ' Nowhere-ville USA',    };
    // insert all of the data here    let count = 1000;    for (let i = 0; i < 500; i++) {      User.create(data, function (err, u) {        if (err) {          throw err;        }        mIds.push(u.id);        --count || next();      });      const nData = {};      nData.name = data.name;      nData.age = data.age;      nData.likes = data.likes;      nData.address = data.address;      user.insertOne(nData, function (err, res) {        dIds.push(res.insertedId);        --count || next();      });    }
    function closeDB() {      User.count(function (err, res) {        if (res !== 0) {          console.log('Still mongoose entries left...');        }        mongoose.disconnect();      });      user.count({}, function (err, res) {        if (res !== 0) {          console.log('Still driver entries left...');        }        if (err) {          throw err;        }        client.close();      });    }
    suite      .add('Delete - Mongoose', {        defer: true,        fn: function (deferred) {          User.remove({ _id: mIds.pop() }, function (err) {            if (err) {              throw err;            }            deferred.resolve();          });        },      })      .add('Delete - Driver', {        defer: true,        fn: function (deferred) {          user.deleteOne({ _id: dIds.pop() }, function (err) {            if (err) {              throw err;            }            deferred.resolve();          });        },      })      .on('cycle', function (evt) {        if (process.env.MONGOOSE_DEV || process.env.PULL_REQUEST) {          console.log(String(evt.target));        }      })      .on('complete', function () {        closeDB();        if (!process.env.MONGOOSE_DEV && !process.env.PULL_REQUEST) {          const outObj = {};          this.forEach(function (item) {            const out = {};            out.stats = item.stats;            delete out.stats.sample;            out.ops = item.hz;            outObj[item.name.replace(/\s/g, '')] = out;          });          console.dir(outObj, { depth: null, colors: true });        }      });    function next() {      suite.run({ async: true });    }  });});