const should = require('should');
const sinon = require('sinon');
const Promise = require('bluebird');
const rewire = require('rewire');
const models = require('../../../../../core/server/models');
const baseUtils = require('../../../../../core/server/models/base/utils');
const fixtureUtils = rewire('../../../../../core/server/data/schema/fixtures/utils');
const fixtures = require('../../../../../core/server/data/schema/fixtures/fixtures');

describe('Migration Fixture Utils', function () {
    let loggerStub;

    beforeEach(function () {
        loggerStub = {
            info: sinon.stub(),
            warn: sinon.stub()
        };

        models.init();
    });

    afterEach(function () {
        sinon.restore();
    });

    describe('Match Func', function () {
        const matchFunc = fixtureUtils.__get__('matchFunc');
        let getStub;

        beforeEach(function () {
            getStub = sinon.stub();
            getStub.withArgs('foo').returns('bar');
            getStub.withArgs('fun').returns('baz');
        });

        it('should match undefined with no args', function () {
            matchFunc()({get: getStub}).should.be.true();
            getStub.calledOnce.should.be.true();
            getStub.calledWith(undefined).should.be.true();
        });

        it('should match key with match string', function () {
            matchFunc('foo', 'bar')({get: getStub}).should.be.true();
            getStub.calledOnce.should.be.true();
            getStub.calledWith('foo').should.be.true();

            matchFunc('foo', 'buz')({get: getStub}).should.be.false();
            getStub.calledTwice.should.be.true();
            getStub.secondCall.calledWith('foo').should.be.true();
        });

        it('should match value when key is 0', function () {
            matchFunc('foo', 0, 'bar')({get: getStub}).should.be.true();
            getStub.calledOnce.should.be.true();
            getStub.calledWith('foo').should.be.true();

            matchFunc('foo', 0, 'buz')({get: getStub}).should.be.false();
            getStub.calledTwice.should.be.true();
            getStub.secondCall.calledWith('foo').should.be.true();
        });

        it('should match key & value when match is array', function () {
            matchFunc(['foo', 'fun'], 'bar', 'baz')({get: getStub}).should.be.true();
            getStub.calledTwice.should.be.true();
            getStub.getCall(0).calledWith('fun').should.be.true();
            getStub.getCall(1).calledWith('foo').should.be.true();

            matchFunc(['foo', 'fun'], 'baz', 'bar')({get: getStub}).should.be.false();
            getStub.callCount.should.eql(4);
            getStub.getCall(2).calledWith('fun').should.be.true();
            getStub.getCall(3).calledWith('foo').should.be.true();
        });

        it('should match key only when match is array, but value is all', function () {
            matchFunc(['foo', 'fun'], 'bar', 'all')({get: getStub}).should.be.true();
            getStub.calledOnce.should.be.true();
            getStub.calledWith('foo').should.be.true();

            matchFunc(['foo', 'fun'], 'all', 'bar')({get: getStub}).should.be.false();
            getStub.callCount.should.eql(3);
            getStub.getCall(1).calledWith('fun').should.be.true();
            getStub.getCall(2).calledWith('foo').should.be.true();
        });

        it('should match key & value when match and value are arrays', function () {
            matchFunc(['foo', 'fun'], 'bar', ['baz', 'buz'])({get: getStub}).should.be.true();
            getStub.calledTwice.should.be.true();
            getStub.getCall(0).calledWith('fun').should.be.true();
            getStub.getCall(1).calledWith('foo').should.be.true();

            matchFunc(['foo', 'fun'], 'bar', ['biz', 'buz'])({get: getStub}).should.be.false();
            getStub.callCount.should.eql(4);
            getStub.getCall(2).calledWith('fun').should.be.true();
            getStub.getCall(3).calledWith('foo').should.be.true();
        });
    });

    describe('Add Fixtures For Model', function () {
        it('should call add for main post fixture', function (done) {
            const postOneStub = sinon.stub(models.Post, 'findOne').returns(Promise.resolve());
            const postAddStub = sinon.stub(models.Post, 'add').returns(Promise.resolve({}));

            fixtureUtils.addFixturesForModel(fixtures.models[4]).then(function (result) {
                should.exist(result);
                result.should.be.an.Object();
                result.should.have.property('expected', 11);
                result.should.have.property('done', 11);

                postOneStub.callCount.should.eql(11);
                postAddStub.callCount.should.eql(11);

                done();
            }).catch(done);
        });

        it('should not call add for main post fixture if it is already found', function (done) {
            const postOneStub = sinon.stub(models.Post, 'findOne').returns(Promise.resolve({}));
            const postAddStub = sinon.stub(models.Post, 'add').returns(Promise.resolve({}));

            fixtureUtils.addFixturesForModel(fixtures.models[4]).then(function (result) {
                should.exist(result);
                result.should.be.an.Object();
                result.should.have.property('expected', 11);
                result.should.have.property('done', 0);

                postOneStub.callCount.should.eql(11);
                postAddStub.callCount.should.eql(0);

                done();
            }).catch(done);
        });
    });

    describe('Add Fixtures For Relation', function () {
        it('should call attach for permissions-roles', function (done) {
            const fromItem = {
                related: sinon.stub().returnsThis(),
                findWhere: sinon.stub().returns()
            };

            const toItem = [{get: sinon.stub()}];

            const dataMethodStub = {
                filter: sinon.stub().returns(toItem),
                find: sinon.stub().returns(fromItem)
            };

            const baseUtilAttachStub = sinon.stub(baseUtils, 'attach').returns(Promise.resolve([{}]));
            const permsAllStub = sinon.stub(models.Permission, 'findAll').returns(Promise.resolve(dataMethodStub));
            const rolesAllStub = sinon.stub(models.Role, 'findAll').returns(Promise.resolve(dataMethodStub));

            fixtureUtils.addFixturesForRelation(fixtures.relations[0]).then(function (result) {
                should.exist(result);
                result.should.be.an.Object();
                result.should.have.property('expected', 74);
                result.should.have.property('done', 74);

                // Permissions & Roles
                permsAllStub.calledOnce.should.be.true();
                rolesAllStub.calledOnce.should.be.true();
                dataMethodStub.filter.callCount.should.eql(74);
                dataMethodStub.find.callCount.should.eql(7);
                baseUtilAttachStub.callCount.should.eql(74);

                fromItem.related.callCount.should.eql(74);
                fromItem.findWhere.callCount.should.eql(74);
                toItem[0].get.callCount.should.eql(148);

                done();
            }).catch(done);
        });

        it('should call attach for posts-tags', function (done) {
            const fromItem = {
                related: sinon.stub().returnsThis(),
                findWhere: sinon.stub().returns()
            };

            const toItem = [{get: sinon.stub()}];

            const dataMethodStub = {
                filter: sinon.stub().returns(toItem),
                find: sinon.stub().returns(fromItem)
            };

            const baseUtilAttachStub = sinon.stub(baseUtils, 'attach').returns(Promise.resolve([{}]));
            const postsAllStub = sinon.stub(models.Post, 'findAll').returns(Promise.resolve(dataMethodStub));
            const tagsAllStub = sinon.stub(models.Tag, 'findAll').returns(Promise.resolve(dataMethodStub));

            fixtureUtils.addFixturesForRelation(fixtures.relations[1]).then(function (result) {
                should.exist(result);
                result.should.be.an.Object();
                result.should.have.property('expected', 7);
                result.should.have.property('done', 7);

                // Posts & Tags
                postsAllStub.calledOnce.should.be.true();
                tagsAllStub.calledOnce.should.be.true();
                dataMethodStub.filter.callCount.should.eql(7);
                dataMethodStub.find.callCount.should.eql(7);
                fromItem.related.callCount.should.eql(7);
                fromItem.findWhere.callCount.should.eql(7);
                toItem[0].get.callCount.should.eql(7);
                baseUtilAttachStub.callCount.should.eql(7);

                done();
            }).catch(done);
        });

        it('will not call attach for posts-tags if already present', function (done) {
            const fromItem = {
                related: sinon.stub().returnsThis(),
                findWhere: sinon.stub().returns({}),
                tags: sinon.stub().returnsThis(),
                attach: sinon.stub().returns(Promise.resolve({}))
            };

            const toItem = [{get: sinon.stub()}];

            const dataMethodStub = {
                filter: sinon.stub().returns(toItem),
                find: sinon.stub().returns(fromItem)
            };

            const postsAllStub = sinon.stub(models.Post, 'findAll').returns(Promise.resolve(dataMethodStub));
            const tagsAllStub = sinon.stub(models.Tag, 'findAll').returns(Promise.resolve(dataMethodStub));

            fixtureUtils.addFixturesForRelation(fixtures.relations[1]).then(function (result) {
                should.exist(result);
                result.should.be.an.Object();
                result.should.have.property('expected', 7);
                result.should.have.property('done', 0);

                // Posts & Tags
                postsAllStub.calledOnce.should.be.true();
                tagsAllStub.calledOnce.should.be.true();
                dataMethodStub.filter.callCount.should.eql(7);
                dataMethodStub.find.callCount.should.eql(7);

                fromItem.related.callCount.should.eql(7);
                fromItem.findWhere.callCount.should.eql(7);
                toItem[0].get.callCount.should.eql(7);

                fromItem.tags.called.should.be.false();
                fromItem.attach.called.should.be.false();

                done();
            }).catch(done);
        });
    });

    describe('findModelFixtureEntry', function () {
        it('should fetch a single fixture entry', function () {
            const foundFixture = fixtureUtils.findModelFixtureEntry('Integration', {slug: 'zapier'});
            foundFixture.should.be.an.Object();
            foundFixture.should.eql({
                slug: 'zapier',
                name: 'Zapier',
                description: 'Built-in Zapier integration',
                type: 'builtin',
                api_keys: [{type: 'admin'}]
            });
        });
    });

    describe('findModelFixtures', function () {
        it('should fetch a fixture with multiple entries', function () {
            const foundFixture = fixtureUtils.findModelFixtures('Permission', {object_type: 'db'});
            foundFixture.should.be.an.Object();
            foundFixture.entries.should.be.an.Array().with.lengthOf(4);
            foundFixture.entries[0].should.eql({
                name: 'Export database',
                action_type: 'exportContent',
                object_type: 'db'
            });
            foundFixture.entries[3].should.eql({
                name: 'Backup database',
                action_type: 'backupContent',
                object_type: 'db'
            });
        });
    });

    describe('findPermissionRelationsForObject', function () {
        it('should fetch a fixture with multiple entries', function () {
            const foundFixture = fixtureUtils.findPermissionRelationsForObject('db');
            foundFixture.should.be.an.Object();
            foundFixture.entries.should.be.an.Object();
            foundFixture.entries.should.have.property('Administrator', {db: 'all'});
        });
    });
});