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'use strict';
const start = require('./common');
const Query = require('../lib/query');const assert = require('assert');
const mongoose = start.mongoose;const Schema = mongoose.Schema;
describe('Query:', function() {  let Comment;  let Product;
  describe('toConstructor', function() {    let db;
    before(function() {      db = start();    });
    after(async function() {      await db.close();    });
    before(function() {      Comment = new Schema({        text: String      });
      Product = new Schema({        tags: {}, // mixed        array: Array,        ids: [Schema.ObjectId],        strings: [String],        numbers: [Number],        comments: [Comment],        title: String      });      Product = db.model('Product', Product);    });
    it('creates a query', function(done) {      const prodQ = Product.find({ title: /test/ }).toConstructor();
      assert.ok(prodQ() instanceof Query);      done();    });
    it('copies all the right values', function(done) {      const prodQ = Product.update({ title: /test/ }, { title: 'blah' });
      const prodC = prodQ.toConstructor();
      assert.deepEqual(prodQ._conditions, prodC()._conditions);      assert.deepEqual(prodQ._fields, prodC()._fields);      assert.deepEqual(prodQ._update, prodC()._update);      assert.equal(prodQ._path, prodC()._path);      assert.equal(prodQ._distinct, prodC()._distinct);      assert.deepEqual(prodQ._collection, prodC()._collection);      assert.deepEqual(prodQ.model, prodC().model);      assert.deepEqual(prodQ.mongooseCollection, prodC().mongooseCollection);      assert.deepEqual(prodQ._mongooseOptions, prodC()._mongooseOptions);      done();    });
    it('gets expected results', function(done) {      Product.create({ title: 'this is a test' }, function(err, p) {        assert.ifError(err);        const prodC = Product.find({ title: /test/ }).toConstructor();
        prodC().exec(function(err, results) {          assert.ifError(err);          assert.equal(results.length, 1);          assert.equal(p.title, results[0].title);          done();        });      });    });
    it('can be re-used multiple times', function(done) {      Product.create([{ title: 'moar thing' }, { title: 'second thing' }], function(err, prods) {        assert.ifError(err);        assert.equal(prods.length, 2);        const prod = prods[0];        const prodC = Product.find({ title: /thing/ }).toConstructor();
        prodC().exec(function(err, results) {          assert.ifError(err);
          assert.equal(results.length, 2);          prodC().find({ _id: prod.id }).exec(function(err, res) {            assert.ifError(err);            assert.equal(res.length, 1);
            prodC().exec(function(err, res) {              assert.ifError(err);              assert.equal(res.length, 2);              done();            });          });        });      });    });
    it('options get merged properly', function(done) {      let prodC = Product.find({ title: /blah/ }).setOptions({ sort: 'title', lean: true });      prodC = prodC.toConstructor();
      const nq = prodC(null, { limit: 3 });      assert.deepEqual(nq._mongooseOptions, { lean: true, limit: 3 });      assert.deepEqual(nq.options, {        sort: { title: 1 },        limit: 3      });      done();    });
    it('options get cloned (gh-3176)', function(done) {      let prodC = Product.find({ title: /blah/ }).setOptions({ sort: 'title', lean: true });      prodC = prodC.toConstructor();
      const nq = prodC(null, { limit: 3 });      assert.deepEqual(nq._mongooseOptions, { lean: true, limit: 3 });      assert.deepEqual(nq.options, {        sort: { title: 1 },        limit: 3      });      const nq2 = prodC(null, { limit: 5 });      assert.deepEqual(nq._mongooseOptions, { lean: true, limit: 3 });      assert.deepEqual(nq2._mongooseOptions, { lean: true, limit: 5 });
      done();    });
    it('creates subclasses of mquery', function(done) {      const opts = { w: 'majority', readPreference: 'p' };      const match = { title: 'test', count: { $gt: 101 } };      const select = { name: 1, count: 0 };      const update = { $set: { title: 'thing' } };      const path = 'title';
      const q = Product.update(match, update);      q.select(select);      q.where(path);      q.setOptions(opts);      q.find();
      const M = q.toConstructor();      const m = M();
      assert.ok(m instanceof Query);      assert.deepEqual(opts, m.options);      assert.deepEqual(match, m._conditions);      assert.deepEqual(select, m._fields);      assert.deepEqual(update, m._update);      assert.equal(path, m._path);      assert.equal('find', m.op);      done();    });
    it('with findOneAndUpdate (gh-4318)', function(done) {      const Q = Product.where({ title: 'test' }).toConstructor();
      const query = { 'tags.test': 1 };      const update = {        strings: ['123'],        numbers: [1, 2, 3]      };      Q().findOneAndUpdate(query, update, function(error) {        assert.ifError(error);        done();      });    });
    it('gets middleware from model (gh-6455)', async function() {      let called = 0;      const schema = new Schema({        name: String      });
      schema.pre('findOne', function logHook() {        called++;      });
      const Test = db.model('Test', schema);      const test = new Test({ name: 'Romero' });      const Q = Test.findOne({}).toConstructor();

      await test.save();      const doc = await Q();      assert.strictEqual(doc.name, 'Romero');      assert.strictEqual(called, 1);    });
    it('works with entries-style sort() syntax (gh-8159)', function() {      mongoose.deleteModel(/Test/);      const Model = mongoose.model('Test', Schema({ name: String }));
      const query = Model.find().sort([['name', 1]]);      const Query = query.toConstructor();      const q = new Query();      assert.deepEqual(q.options.sort, [['name', 1]]);    });  });});