const utils = require('../utils');
const nql = require('../../lib/nql');

const knex = utils.db.client;

/**
 * The purpose of this file is to prove that NQL
 * is not just transformed to mongo queries correctly
 * but that this can be used in real world settings to query SQL databases
 */

describe('Integration with Knex', function () {
    before(utils.db.setup());
    after(utils.db.teardown());

    it('should match based on simple id', function () {
        const query = nql('featured:true');

        return query
            .querySQL(knex('posts'))
            .select()
            .then((result) => {
                result.should.be.an.Array().with.lengthOf(4);
                result[0].featured.should.equal(1);
            });
    });

    describe('Regex / Like queries', function () {
        it('can do a contains query', function () {
            const query = nql(`title:~'ne'`);

            return query
                .querySQL(knex('posts'))
                .select()
                .then((result) => {
                    result.should.be.an.Array().with.lengthOf(2);
                    result[0].title.should.equal('A Whole New World');
                    result[1].title.should.equal('The Bare Necessities');
                });
        });

        it('can do a startswith query', function () {
            const query = nql(`title:~^'wh'`);

            return query
                .querySQL(knex('posts'))
                .select()
                .then((result) => {
                    result.should.be.an.Array().with.lengthOf(1);
                    result[0].title.should.equal('When She Loved Me');
                });
        });

        it('can do an endswith query', function () {
            const query = nql(`title:~$'es'`);

            return query
                .querySQL(knex('posts'))
                .select()
                .then((result) => {
                    result.should.be.an.Array().with.lengthOf(1);
                    result[0].title.should.equal('The Bare Necessities');
                });
        });
    });
});