const models = require('vn-loopback/server/server').models;
const LoopBackContext = require('loopback-context');

describe('loopback model Supplier', () => {
    let supplierOne;
    let supplierTwo;

    beforeAll(async() => {
        supplierOne = await models.Supplier.findById(1);
        supplierTwo = await models.Supplier.findById(442);
        const activeCtx = {
            accessToken: {userId: 9},
            http: {
                req: {
                    headers: {origin: 'http://localhost'}
                }
            }
        };

        spyOn(LoopBackContext, 'getCurrentContext').and.returnValue({
            active: activeCtx
        });
    });

    describe('payMethodFk', () => {
        it('should throw an error when attempting to set an invalid payMethod id in the supplier', async() => {
            const tx = await models.Supplier.beginTransaction({});
            const options = {transaction: tx};

            try {
                let error;
                const expectedError = 'You can not select this payment method without a registered bankery account';

                await supplierOne.updateAttribute('payMethodFk', 8, options)
                    .catch(e => {
                        error = e;

                        expect(error.message).toContain(expectedError);
                    });

                expect(error).toBeDefined();
                await tx.rollback();
            } catch (e) {
                await tx.rollback();
                throw e;
            }
        });

        it('should not throw if the payMethod id is valid', async() => {
            const tx = await models.Supplier.beginTransaction({});
            const options = {transaction: tx};

            try {
                let error;
                await supplierTwo.updateAttribute('payMethodFk', 4, options)
                    .catch(e => {
                        error = e;
                    });

                expect(error).not.toBeDefined();
                await tx.rollback();
            } catch (e) {
                await tx.rollback();
                throw e;
            }
        });

        it('should have checked isPayMethodChecked for payMethod hasVerfified is false', async() => {
            const tx = await models.Supplier.beginTransaction({});
            const options = {transaction: tx};

            try {
                await supplierTwo.updateAttribute('isPayMethodChecked', true, options);
                await supplierTwo.updateAttribute('payMethodFk', 5, options);

                const result = await models.Supplier.findById(442, null, options);

                expect(result.isPayMethodChecked).toEqual(true);
                await tx.rollback();
            } catch (e) {
                await tx.rollback();
                throw e;
            }
        });

        it('should have unchecked isPayMethodChecked for payMethod hasVerfified is true', async() => {
            const tx = await models.Supplier.beginTransaction({});
            const options = {transaction: tx};

            try {
                await supplierTwo.updateAttribute('isPayMethodChecked', true, options);
                await supplierTwo.updateAttribute('payMethodFk', 2, options);

                const result = await models.Supplier.findById(442, null, options);

                expect(result.isPayMethodChecked).toEqual(false);
                await tx.rollback();
            } catch (e) {
                await tx.rollback();
                throw e;
            }
        });

        it('should have unchecked isPayMethodChecked for payDay and peyDemFk', async() => {
            const tx = await models.Supplier.beginTransaction({});
            const options = {transaction: tx};

            try {
                await supplierTwo.updateAttribute('payMethodFk', 2, options);
                await supplierTwo.updateAttribute('isPayMethodChecked', true, options);
                await supplierTwo.updateAttribute('payDay', 5, options);
                const firstResult = await models.Supplier.findById(442, null, options);

                await supplierTwo.updateAttribute('isPayMethodChecked', true, options);
                await supplierTwo.updateAttribute('payDemFk', 1, options);
                const secondResult = await models.Supplier.findById(442, null, options);

                expect(firstResult.isPayMethodChecked).toEqual(false);
                expect(secondResult.isPayMethodChecked).toEqual(false);
                await tx.rollback();
            } catch (e) {
                await tx.rollback();
                throw e;
            }
        });

        it('should update the account attribute when a new supplier is created', async() => {
            const tx = await models.Supplier.beginTransaction({});
            const options = {transaction: tx};

            try {
                const newSupplier = await models.Supplier.create({name: 'ALFRED PENNYWORTH'}, options);
                const fetchedSupplier = await models.Supplier.findById(newSupplier.id, null, options);

                expect(Number(fetchedSupplier.account)).toEqual(4100000000 + newSupplier.id);
                await tx.rollback();
            } catch (e) {
                await tx.rollback();
                throw e;
            }
        });
    });
});