/* tslint:disable:no-non-null-assertion */
import { pick } from '@vendure/common/lib/pick';
import { createTestEnvironment, SimpleGraphQLClient } from '@vendure/testing';
import gql from 'graphql-tag';
import path from 'path';

import { initialData } from '../../../e2e-common/e2e-initial-data';
import { TEST_SETUP_TIMEOUT_MS, testConfig } from '../../../e2e-common/test-config';

import {
    failsToSettlePaymentMethod,
    singleStageRefundablePaymentMethod,
    twoStagePaymentMethod,
} from './fixtures/test-payment-methods';
import { ORDER_FRAGMENT, ORDER_WITH_LINES_FRAGMENT } from './graphql/fragments';
import {
    AddNoteToOrder,
    CancelOrder,
    CreateFulfillment,
    GetCustomerList,
    GetOrder,
    GetOrderFulfillmentItems,
    GetOrderFulfillments,
    GetOrderHistory,
    GetOrderList,
    GetOrderListFulfillments,
    GetProductWithVariants,
    GetStockMovement,
    HistoryEntryType,
    OrderItemFragment,
    RefundOrder,
    SettlePayment,
    SettleRefund,
    StockMovementType,
    UpdateProductVariants,
} from './graphql/generated-e2e-admin-types';
import { AddItemToOrder, GetActiveOrder } from './graphql/generated-e2e-shop-types';
import {
    GET_CUSTOMER_LIST,
    GET_PRODUCT_WITH_VARIANTS,
    GET_STOCK_MOVEMENT,
    UPDATE_PRODUCT_VARIANTS,
} from './graphql/shared-definitions';
import { ADD_ITEM_TO_ORDER, GET_ACTIVE_ORDER } from './graphql/shop-definitions';
import { assertThrowsWithMessage } from './utils/assert-throws-with-message';
import { addPaymentToOrder, proceedToArrangingPayment } from './utils/test-order-utils';

describe('Orders resolver', () => {
    const { server, adminClient, shopClient } = createTestEnvironment({
        ...testConfig,
        paymentOptions: {
            paymentMethodHandlers: [
                twoStagePaymentMethod,
                failsToSettlePaymentMethod,
                singleStageRefundablePaymentMethod,
            ],
        },
    });
    let customers: GetCustomerList.Items[];
    const password = 'test';

    beforeAll(async () => {
        await server.init({
            dataDir: path.join(__dirname, '__data__'),
            initialData,
            productsCsvPath: path.join(__dirname, 'fixtures/e2e-products-full.csv'),
            customerCount: 3,
        });
        await adminClient.asSuperAdmin();

        // Create a couple of orders to be queried
        const result = await adminClient.query<GetCustomerList.Query, GetCustomerList.Variables>(
            GET_CUSTOMER_LIST,
            {
                options: {
                    take: 3,
                },
            },
        );
        customers = result.customers.items;
        await shopClient.asUserWithCredentials(customers[0].emailAddress, password);
        await shopClient.query<AddItemToOrder.Mutation, AddItemToOrder.Variables>(ADD_ITEM_TO_ORDER, {
            productVariantId: 'T_1',
            quantity: 1,
        });
        await shopClient.query<AddItemToOrder.Mutation, AddItemToOrder.Variables>(ADD_ITEM_TO_ORDER, {
            productVariantId: 'T_2',
            quantity: 1,
        });
        await shopClient.asUserWithCredentials(customers[1].emailAddress, password);
        await shopClient.query<AddItemToOrder.Mutation, AddItemToOrder.Variables>(ADD_ITEM_TO_ORDER, {
            productVariantId: 'T_2',
            quantity: 1,
        });
        await shopClient.query<AddItemToOrder.Mutation, AddItemToOrder.Variables>(ADD_ITEM_TO_ORDER, {
            productVariantId: 'T_3',
            quantity: 3,
        });
    }, TEST_SETUP_TIMEOUT_MS);

    afterAll(async () => {
        await server.destroy();
    });

    it('orders', async () => {
        const result = await adminClient.query<GetOrderList.Query>(GET_ORDERS_LIST);
        expect(result.orders.items.map(o => o.id)).toEqual(['T_1', 'T_2']);
    });

    it('order', async () => {
        const result = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, { id: 'T_2' });
        expect(result.order!.id).toBe('T_2');
    });

    it('order history initially empty', async () => {
        const { order } = await adminClient.query<GetOrderHistory.Query, GetOrderHistory.Variables>(
            GET_ORDER_HISTORY,
            { id: 'T_1' },
        );
        expect(order!.history.totalItems).toBe(0);
        expect(order!.history.items).toEqual([]);
    });

    describe('payments', () => {
        it('settlePayment fails', async () => {
            await shopClient.asUserWithCredentials(customers[0].emailAddress, password);
            await proceedToArrangingPayment(shopClient);
            const order = await addPaymentToOrder(shopClient, failsToSettlePaymentMethod);

            expect(order.state).toBe('PaymentAuthorized');

            const payment = order.payments![0];
            const { settlePayment } = await adminClient.query<
                SettlePayment.Mutation,
                SettlePayment.Variables
            >(SETTLE_PAYMENT, {
                id: payment.id,
            });

            expect(settlePayment!.id).toBe(payment.id);
            expect(settlePayment!.state).toBe('Authorized');

            const result = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                id: order.id,
            });

            expect(result.order!.state).toBe('PaymentAuthorized');
        });

        it('settlePayment succeeds', async () => {
            await shopClient.asUserWithCredentials(customers[1].emailAddress, password);
            await proceedToArrangingPayment(shopClient);
            const order = await addPaymentToOrder(shopClient, twoStagePaymentMethod);

            expect(order.state).toBe('PaymentAuthorized');

            const payment = order.payments![0];
            const { settlePayment } = await adminClient.query<
                SettlePayment.Mutation,
                SettlePayment.Variables
            >(SETTLE_PAYMENT, {
                id: payment.id,
            });

            expect(settlePayment!.id).toBe(payment.id);
            expect(settlePayment!.state).toBe('Settled');
            // further metadata is combined into existing object
            expect(settlePayment!.metadata).toEqual({
                baz: 'quux',
                moreData: 42,
            });

            const result = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                id: order.id,
            });

            expect(result.order!.state).toBe('PaymentSettled');
            expect(result.order!.payments![0].state).toBe('Settled');
        });

        it('order history contains expected entries', async () => {
            const { order } = await adminClient.query<GetOrderHistory.Query, GetOrderHistory.Variables>(
                GET_ORDER_HISTORY,
                { id: 'T_2' },
            );
            expect(order!.history.items.map(pick(['type', 'data']))).toEqual([
                {
                    type: HistoryEntryType.ORDER_STATE_TRANSITION,
                    data: {
                        from: 'AddingItems',
                        to: 'ArrangingPayment',
                    },
                },
                {
                    type: HistoryEntryType.ORDER_PAYMENT_TRANSITION,
                    data: {
                        paymentId: 'T_2',
                        from: 'Created',
                        to: 'Authorized',
                    },
                },
                {
                    type: HistoryEntryType.ORDER_STATE_TRANSITION,
                    data: {
                        from: 'ArrangingPayment',
                        to: 'PaymentAuthorized',
                    },
                },
                {
                    type: HistoryEntryType.ORDER_PAYMENT_TRANSITION,
                    data: {
                        paymentId: 'T_2',
                        from: 'Authorized',
                        to: 'Settled',
                    },
                },
                {
                    type: HistoryEntryType.ORDER_STATE_TRANSITION,
                    data: {
                        from: 'PaymentAuthorized',
                        to: 'PaymentSettled',
                    },
                },
            ]);
        });
    });

    describe('fulfillment', () => {
        it(
            'throws if Order is not in "PaymentSettled" state',
            assertThrowsWithMessage(async () => {
                const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                    id: 'T_1',
                });
                expect(order!.state).toBe('PaymentAuthorized');

                await adminClient.query<CreateFulfillment.Mutation, CreateFulfillment.Variables>(
                    CREATE_FULFILLMENT,
                    {
                        input: {
                            lines: order!.lines.map(l => ({ orderLineId: l.id, quantity: l.quantity })),
                            method: 'Test',
                        },
                    },
                );
            }, 'One or more OrderItems belong to an Order which is in an invalid state'),
        );

        it(
            'throws if lines is empty',
            assertThrowsWithMessage(async () => {
                const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                    id: 'T_2',
                });
                expect(order!.state).toBe('PaymentSettled');
                await adminClient.query<CreateFulfillment.Mutation, CreateFulfillment.Variables>(
                    CREATE_FULFILLMENT,
                    {
                        input: {
                            lines: [],
                            method: 'Test',
                        },
                    },
                );
            }, 'Nothing to fulfill'),
        );

        it(
            'throws if all quantities are zero',
            assertThrowsWithMessage(async () => {
                const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                    id: 'T_2',
                });
                expect(order!.state).toBe('PaymentSettled');
                await adminClient.query<CreateFulfillment.Mutation, CreateFulfillment.Variables>(
                    CREATE_FULFILLMENT,
                    {
                        input: {
                            lines: order!.lines.map(l => ({ orderLineId: l.id, quantity: 0 })),
                            method: 'Test',
                        },
                    },
                );
            }, 'Nothing to fulfill'),
        );

        it('creates a partial fulfillment', async () => {
            const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                id: 'T_2',
            });
            expect(order!.state).toBe('PaymentSettled');
            const lines = order!.lines;

            const { fulfillOrder } = await adminClient.query<
                CreateFulfillment.Mutation,
                CreateFulfillment.Variables
            >(CREATE_FULFILLMENT, {
                input: {
                    lines: lines.map(l => ({ orderLineId: l.id, quantity: 1 })),
                    method: 'Test1',
                    trackingCode: '111',
                },
            });

            expect(fulfillOrder!.method).toBe('Test1');
            expect(fulfillOrder!.trackingCode).toBe('111');
            expect(fulfillOrder!.orderItems).toEqual([
                { id: lines[0].items[0].id },
                { id: lines[1].items[0].id },
            ]);

            const result = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                id: 'T_2',
            });

            expect(result.order!.state).toBe('PartiallyFulfilled');
            expect(result.order!.lines[0].items[0].fulfillment!.id).toBe(fulfillOrder!.id);
            expect(result.order!.lines[1].items[2].fulfillment!.id).toBe(fulfillOrder!.id);
            expect(result.order!.lines[1].items[1].fulfillment).toBeNull();
            expect(result.order!.lines[1].items[0].fulfillment).toBeNull();
        });

        it('creates a second partial fulfillment', async () => {
            const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                id: 'T_2',
            });
            expect(order!.state).toBe('PartiallyFulfilled');
            const lines = order!.lines;

            const { fulfillOrder } = await adminClient.query<
                CreateFulfillment.Mutation,
                CreateFulfillment.Variables
            >(CREATE_FULFILLMENT, {
                input: {
                    lines: [{ orderLineId: lines[1].id, quantity: 1 }],
                    method: 'Test2',
                    trackingCode: '222',
                },
            });

            const result = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                id: 'T_2',
            });
            // expect(result.order!.lines).toEqual({});
            expect(result.order!.state).toBe('PartiallyFulfilled');
            expect(result.order!.lines[1].items[2].fulfillment).not.toBeNull();
            expect(result.order!.lines[1].items[1].fulfillment).not.toBeNull();
            expect(result.order!.lines[1].items[0].fulfillment).toBeNull();
        });

        it(
            'throws if an OrderItem already part of a Fulfillment',
            assertThrowsWithMessage(async () => {
                const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                    id: 'T_2',
                });
                expect(order!.state).toBe('PartiallyFulfilled');
                await adminClient.query<CreateFulfillment.Mutation, CreateFulfillment.Variables>(
                    CREATE_FULFILLMENT,
                    {
                        input: {
                            method: 'Test',
                            lines: [
                                {
                                    orderLineId: order!.lines[0].id,
                                    quantity: 1,
                                },
                            ],
                        },
                    },
                );
            }, 'One or more OrderItems have already been fulfilled'),
        );

        it('completes fulfillment', async () => {
            const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                id: 'T_2',
            });
            expect(order!.state).toBe('PartiallyFulfilled');

            const orderItems = order!.lines.reduce(
                (items, line) => [...items, ...line.items],
                [] as OrderItemFragment[],
            );

            const { fulfillOrder } = await adminClient.query<
                CreateFulfillment.Mutation,
                CreateFulfillment.Variables
            >(CREATE_FULFILLMENT, {
                input: {
                    lines: [
                        {
                            orderLineId: order!.lines[1].id,
                            quantity: 1,
                        },
                    ],
                    method: 'Test3',
                    trackingCode: '333',
                },
            });

            expect(fulfillOrder!.method).toBe('Test3');
            expect(fulfillOrder!.trackingCode).toBe('333');
            expect(fulfillOrder!.orderItems).toEqual([{ id: orderItems[1].id }]);

            const result = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                id: 'T_2',
            });
            expect(result.order!.state).toBe('Fulfilled');
        });

        it('order history contains expected entries', async () => {
            const { order } = await adminClient.query<GetOrderHistory.Query, GetOrderHistory.Variables>(
                GET_ORDER_HISTORY,
                {
                    id: 'T_2',
                    options: {
                        skip: 5,
                    },
                },
            );
            expect(order!.history.items.map(pick(['type', 'data']))).toEqual([
                {
                    type: HistoryEntryType.ORDER_FULLFILLMENT,
                    data: {
                        fulfillmentId: 'T_1',
                    },
                },
                {
                    type: HistoryEntryType.ORDER_STATE_TRANSITION,
                    data: {
                        from: 'PaymentSettled',
                        to: 'PartiallyFulfilled',
                    },
                },

                {
                    type: HistoryEntryType.ORDER_FULLFILLMENT,
                    data: {
                        fulfillmentId: 'T_2',
                    },
                },
                {
                    type: HistoryEntryType.ORDER_STATE_TRANSITION,
                    data: {
                        from: 'PartiallyFulfilled',
                        to: 'PartiallyFulfilled',
                    },
                },
                {
                    type: HistoryEntryType.ORDER_FULLFILLMENT,
                    data: {
                        fulfillmentId: 'T_3',
                    },
                },
                {
                    type: HistoryEntryType.ORDER_STATE_TRANSITION,
                    data: {
                        from: 'PartiallyFulfilled',
                        to: 'Fulfilled',
                    },
                },
            ]);
        });

        it('order.fullfillments resolver for single order', async () => {
            const { order } = await adminClient.query<
                GetOrderFulfillments.Query,
                GetOrderFulfillments.Variables
            >(GET_ORDER_FULFILLMENTS, {
                id: 'T_2',
            });

            expect(order!.fulfillments).toEqual([
                { id: 'T_1', method: 'Test1' },
                { id: 'T_2', method: 'Test2' },
                { id: 'T_3', method: 'Test3' },
            ]);
        });

        it('order.fullfillments resolver for order list', async () => {
            const { orders } = await adminClient.query<GetOrderListFulfillments.Query>(
                GET_ORDER_LIST_FULFILLMENTS,
            );

            expect(orders.items[0].fulfillments).toEqual([]);
            expect(orders.items[1].fulfillments).toEqual([
                { id: 'T_1', method: 'Test1' },
                { id: 'T_2', method: 'Test2' },
                { id: 'T_3', method: 'Test3' },
            ]);
        });

        it('order.fullfillments.orderItems resolver', async () => {
            const { order } = await adminClient.query<
                GetOrderFulfillmentItems.Query,
                GetOrderFulfillmentItems.Variables
            >(GET_ORDER_FULFILLMENT_ITEMS, {
                id: 'T_2',
            });

            expect(order!.fulfillments![0].orderItems).toEqual([{ id: 'T_3' }, { id: 'T_4' }]);
            expect(order!.fulfillments![1].orderItems).toEqual([{ id: 'T_5' }]);
        });
    });

    describe('cancellation by orderId', () => {
        it('cancel from AddingItems state', async () => {
            const testOrder = await createTestOrder(
                adminClient,
                shopClient,
                customers[0].emailAddress,
                password,
            );
            const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                id: testOrder.orderId,
            });
            expect(order!.state).toBe('AddingItems');
            const { cancelOrder } = await adminClient.query<CancelOrder.Mutation, CancelOrder.Variables>(
                CANCEL_ORDER,
                {
                    input: {
                        orderId: testOrder.orderId,
                    },
                },
            );

            const { order: order2 } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                id: testOrder.orderId,
            });
            expect(order2!.state).toBe('Cancelled');
            expect(order2!.active).toBe(false);
            await assertNoStockMovementsCreated(testOrder.product.id);
        });

        it('cancel from ArrangingPayment state', async () => {
            const testOrder = await createTestOrder(
                adminClient,
                shopClient,
                customers[0].emailAddress,
                password,
            );
            await proceedToArrangingPayment(shopClient);
            const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                id: testOrder.orderId,
            });
            expect(order!.state).toBe('ArrangingPayment');
            await adminClient.query<CancelOrder.Mutation, CancelOrder.Variables>(CANCEL_ORDER, {
                input: {
                    orderId: testOrder.orderId,
                },
            });

            const { order: order2 } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                id: testOrder.orderId,
            });
            expect(order2!.state).toBe('Cancelled');
            expect(order2!.active).toBe(false);

            await assertNoStockMovementsCreated(testOrder.product.id);
        });

        it('cancel from PaymentAuthorized state', async () => {
            const testOrder = await createTestOrder(
                adminClient,
                shopClient,
                customers[0].emailAddress,
                password,
            );
            await proceedToArrangingPayment(shopClient);
            const order = await addPaymentToOrder(shopClient, failsToSettlePaymentMethod);
            expect(order.state).toBe('PaymentAuthorized');

            const result1 = await adminClient.query<GetStockMovement.Query, GetStockMovement.Variables>(
                GET_STOCK_MOVEMENT,
                {
                    id: 'T_3',
                },
            );
            let variant1 = result1.product!.variants[0];
            expect(variant1.stockOnHand).toBe(98);
            expect(variant1.stockMovements.items.map(pick(['type', 'quantity']))).toEqual([
                { type: StockMovementType.ADJUSTMENT, quantity: 100 },
                { type: StockMovementType.SALE, quantity: -2 },
            ]);

            const { cancelOrder } = await adminClient.query<CancelOrder.Mutation, CancelOrder.Variables>(
                CANCEL_ORDER,
                {
                    input: {
                        orderId: testOrder.orderId,
                    },
                },
            );
            expect(cancelOrder.lines.map(l => l.items.map(pick(['id', 'cancelled'])))).toEqual([
                [{ id: 'T_11', cancelled: true }, { id: 'T_12', cancelled: true }],
            ]);
            const { order: order2 } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                id: testOrder.orderId,
            });
            expect(order2!.active).toBe(false);
            expect(order2!.state).toBe('Cancelled');

            const result2 = await adminClient.query<GetStockMovement.Query, GetStockMovement.Variables>(
                GET_STOCK_MOVEMENT,
                {
                    id: 'T_3',
                },
            );
            variant1 = result2.product!.variants[0];
            expect(variant1.stockOnHand).toBe(100);
            expect(variant1.stockMovements.items.map(pick(['type', 'quantity']))).toEqual([
                { type: StockMovementType.ADJUSTMENT, quantity: 100 },
                { type: StockMovementType.SALE, quantity: -2 },
                { type: StockMovementType.CANCELLATION, quantity: 1 },
                { type: StockMovementType.CANCELLATION, quantity: 1 },
            ]);
        });

        async function assertNoStockMovementsCreated(productId: string) {
            const result = await adminClient.query<GetStockMovement.Query, GetStockMovement.Variables>(
                GET_STOCK_MOVEMENT,
                {
                    id: productId,
                },
            );
            const variant2 = result.product!.variants[0];
            expect(variant2.stockOnHand).toBe(100);
            expect(variant2.stockMovements.items.map(pick(['type', 'quantity']))).toEqual([
                { type: StockMovementType.ADJUSTMENT, quantity: 100 },
            ]);
        }
    });

    describe('cancellation by OrderLine', () => {
        let orderId: string;
        let product: GetProductWithVariants.Product;
        let productVariantId: string;

        beforeAll(async () => {
            const result = await createTestOrder(
                adminClient,
                shopClient,
                customers[0].emailAddress,
                password,
            );
            orderId = result.orderId;
            product = result.product;
            productVariantId = result.productVariantId;
        });

        it(
            'cannot cancel from AddingItems state',
            assertThrowsWithMessage(async () => {
                const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                    id: orderId,
                });
                expect(order!.state).toBe('AddingItems');
                await adminClient.query<CancelOrder.Mutation, CancelOrder.Variables>(CANCEL_ORDER, {
                    input: {
                        orderId,
                        lines: order!.lines.map(l => ({ orderLineId: l.id, quantity: 1 })),
                    },
                });
            }, 'Cannot cancel OrderLines from an Order in the "AddingItems" state'),
        );

        it(
            'cannot cancel from ArrangingPayment state',
            assertThrowsWithMessage(async () => {
                await proceedToArrangingPayment(shopClient);
                const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                    id: orderId,
                });
                expect(order!.state).toBe('ArrangingPayment');
                await adminClient.query<CancelOrder.Mutation, CancelOrder.Variables>(CANCEL_ORDER, {
                    input: {
                        orderId,
                        lines: order!.lines.map(l => ({ orderLineId: l.id, quantity: 1 })),
                    },
                });
            }, 'Cannot cancel OrderLines from an Order in the "ArrangingPayment" state'),
        );

        it(
            'throws if lines are ampty',
            assertThrowsWithMessage(async () => {
                const order = await addPaymentToOrder(shopClient, twoStagePaymentMethod);
                expect(order.state).toBe('PaymentAuthorized');

                await adminClient.query<CancelOrder.Mutation, CancelOrder.Variables>(CANCEL_ORDER, {
                    input: {
                        orderId,
                        lines: [],
                    },
                });
            }, 'Nothing to cancel'),
        );

        it(
            'throws if all quantities zero',
            assertThrowsWithMessage(async () => {
                const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                    id: orderId,
                });
                await adminClient.query<CancelOrder.Mutation, CancelOrder.Variables>(CANCEL_ORDER, {
                    input: {
                        orderId,
                        lines: order!.lines.map(l => ({ orderLineId: l.id, quantity: 0 })),
                    },
                });
            }, 'Nothing to cancel'),
        );

        it('partial cancellation', async () => {
            const result1 = await adminClient.query<GetStockMovement.Query, GetStockMovement.Variables>(
                GET_STOCK_MOVEMENT,
                {
                    id: product.id,
                },
            );
            const variant1 = result1.product!.variants[0];
            expect(variant1.stockOnHand).toBe(98);
            expect(variant1.stockMovements.items.map(pick(['type', 'quantity']))).toEqual([
                { type: StockMovementType.ADJUSTMENT, quantity: 100 },
                { type: StockMovementType.SALE, quantity: -2 },
                { type: StockMovementType.CANCELLATION, quantity: 1 },
                { type: StockMovementType.CANCELLATION, quantity: 1 },
                { type: StockMovementType.SALE, quantity: -2 },
            ]);

            const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                id: orderId,
            });

            const { cancelOrder } = await adminClient.query<CancelOrder.Mutation, CancelOrder.Variables>(
                CANCEL_ORDER,
                {
                    input: {
                        orderId,
                        lines: order!.lines.map(l => ({ orderLineId: l.id, quantity: 1 })),
                        reason: 'cancel reason 1',
                    },
                },
            );

            expect(cancelOrder.lines[0].quantity).toBe(1);
            expect(cancelOrder.lines[0].items).toEqual([
                { id: 'T_13', cancelled: true },
                { id: 'T_14', cancelled: false },
            ]);

            const { order: order2 } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                id: orderId,
            });

            expect(order2!.state).toBe('PaymentAuthorized');
            expect(order2!.lines[0].quantity).toBe(1);

            const result2 = await adminClient.query<GetStockMovement.Query, GetStockMovement.Variables>(
                GET_STOCK_MOVEMENT,
                {
                    id: product.id,
                },
            );
            const variant2 = result2.product!.variants[0];
            expect(variant2.stockOnHand).toBe(99);
            expect(variant2.stockMovements.items.map(pick(['type', 'quantity']))).toEqual([
                { type: StockMovementType.ADJUSTMENT, quantity: 100 },
                { type: StockMovementType.SALE, quantity: -2 },
                { type: StockMovementType.CANCELLATION, quantity: 1 },
                { type: StockMovementType.CANCELLATION, quantity: 1 },
                { type: StockMovementType.SALE, quantity: -2 },
                { type: StockMovementType.CANCELLATION, quantity: 1 },
            ]);
        });

        it('complete cancellation', async () => {
            const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                id: orderId,
            });
            await adminClient.query<CancelOrder.Mutation, CancelOrder.Variables>(CANCEL_ORDER, {
                input: {
                    orderId,
                    lines: order!.lines.map(l => ({ orderLineId: l.id, quantity: 1 })),
                    reason: 'cancel reason 2',
                },
            });

            const { order: order2 } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                id: orderId,
            });
            expect(order2!.state).toBe('Cancelled');

            const result = await adminClient.query<GetStockMovement.Query, GetStockMovement.Variables>(
                GET_STOCK_MOVEMENT,
                {
                    id: product.id,
                },
            );
            const variant2 = result.product!.variants[0];
            expect(variant2.stockOnHand).toBe(100);
            expect(variant2.stockMovements.items.map(pick(['type', 'quantity']))).toEqual([
                { type: StockMovementType.ADJUSTMENT, quantity: 100 },
                { type: StockMovementType.SALE, quantity: -2 },
                { type: StockMovementType.CANCELLATION, quantity: 1 },
                { type: StockMovementType.CANCELLATION, quantity: 1 },
                { type: StockMovementType.SALE, quantity: -2 },
                { type: StockMovementType.CANCELLATION, quantity: 1 },
                { type: StockMovementType.CANCELLATION, quantity: 1 },
            ]);
        });

        it('order history contains expected entries', async () => {
            const { order } = await adminClient.query<GetOrderHistory.Query, GetOrderHistory.Variables>(
                GET_ORDER_HISTORY,
                {
                    id: orderId,
                    options: {
                        skip: 0,
                    },
                },
            );
            expect(order!.history.items.map(pick(['type', 'data']))).toEqual([
                {
                    type: HistoryEntryType.ORDER_STATE_TRANSITION,
                    data: {
                        from: 'AddingItems',
                        to: 'ArrangingPayment',
                    },
                },
                {
                    type: HistoryEntryType.ORDER_PAYMENT_TRANSITION,
                    data: {
                        paymentId: 'T_4',
                        from: 'Created',
                        to: 'Authorized',
                    },
                },
                {
                    type: HistoryEntryType.ORDER_STATE_TRANSITION,
                    data: {
                        from: 'ArrangingPayment',
                        to: 'PaymentAuthorized',
                    },
                },
                {
                    type: HistoryEntryType.ORDER_CANCELLATION,
                    data: {
                        orderItemIds: ['T_13'],
                        reason: 'cancel reason 1',
                    },
                },
                {
                    type: HistoryEntryType.ORDER_CANCELLATION,
                    data: {
                        orderItemIds: ['T_14'],
                        reason: 'cancel reason 2',
                    },
                },
                {
                    type: HistoryEntryType.ORDER_STATE_TRANSITION,
                    data: {
                        from: 'PaymentAuthorized',
                        to: 'Cancelled',
                    },
                },
            ]);
        });
    });

    describe('refunds', () => {
        let orderId: string;
        let product: GetProductWithVariants.Product;
        let productVariantId: string;
        let paymentId: string;
        let refundId: string;

        beforeAll(async () => {
            const result = await createTestOrder(
                adminClient,
                shopClient,
                customers[0].emailAddress,
                password,
            );
            orderId = result.orderId;
            product = result.product;
            productVariantId = result.productVariantId;
        });

        it(
            'cannot refund from PaymentAuthorized state',
            assertThrowsWithMessage(async () => {
                await proceedToArrangingPayment(shopClient);
                const order = await addPaymentToOrder(shopClient, twoStagePaymentMethod);
                expect(order.state).toBe('PaymentAuthorized');
                paymentId = order.payments![0].id;

                await adminClient.query<RefundOrder.Mutation, RefundOrder.Variables>(REFUND_ORDER, {
                    input: {
                        lines: order.lines.map(l => ({ orderLineId: l.id, quantity: 1 })),
                        shipping: 0,
                        adjustment: 0,
                        paymentId,
                    },
                });
            }, 'Cannot refund an Order in the "PaymentAuthorized" state'),
        );

        it(
            'throws if no lines and no shipping',
            assertThrowsWithMessage(async () => {
                const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                    id: orderId,
                });
                const { settlePayment } = await adminClient.query<
                    SettlePayment.Mutation,
                    SettlePayment.Variables
                >(SETTLE_PAYMENT, {
                    id: order!.payments![0].id,
                });

                expect(settlePayment!.state).toBe('Settled');

                await adminClient.query<RefundOrder.Mutation, RefundOrder.Variables>(REFUND_ORDER, {
                    input: {
                        lines: order!.lines.map(l => ({ orderLineId: l.id, quantity: 0 })),
                        shipping: 0,
                        adjustment: 0,
                        paymentId,
                    },
                });
            }, 'Nothing to refund'),
        );

        it(
            'throws if paymentId not valid',
            assertThrowsWithMessage(async () => {
                const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                    id: orderId,
                });
                const { refundOrder } = await adminClient.query<RefundOrder.Mutation, RefundOrder.Variables>(
                    REFUND_ORDER,
                    {
                        input: {
                            lines: [],
                            shipping: 100,
                            adjustment: 0,
                            paymentId: 'T_999',
                        },
                    },
                );
            }, "No Payment with the id '999' could be found"),
        );

        it(
            'throws if payment and order lines do not belong to the same Order',
            assertThrowsWithMessage(async () => {
                const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                    id: orderId,
                });
                const { refundOrder } = await adminClient.query<RefundOrder.Mutation, RefundOrder.Variables>(
                    REFUND_ORDER,
                    {
                        input: {
                            lines: order!.lines.map(l => ({ orderLineId: l.id, quantity: l.quantity })),
                            shipping: 100,
                            adjustment: 0,
                            paymentId: 'T_1',
                        },
                    },
                );
            }, 'The Payment and OrderLines do not belong to the same Order'),
        );

        it('creates a Refund to be manually settled', async () => {
            const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                id: orderId,
            });
            const { refundOrder } = await adminClient.query<RefundOrder.Mutation, RefundOrder.Variables>(
                REFUND_ORDER,
                {
                    input: {
                        lines: order!.lines.map(l => ({ orderLineId: l.id, quantity: l.quantity })),
                        shipping: order!.shipping,
                        adjustment: 0,
                        reason: 'foo',
                        paymentId,
                    },
                },
            );

            expect(refundOrder.shipping).toBe(order!.shipping);
            expect(refundOrder.items).toBe(order!.subTotal);
            expect(refundOrder.total).toBe(order!.total);
            expect(refundOrder.transactionId).toBe(null);
            expect(refundOrder.state).toBe('Pending');
            refundId = refundOrder.id;
        });

        it(
            'throws if attempting to refund the same item more than once',
            assertThrowsWithMessage(async () => {
                const { order } = await adminClient.query<GetOrder.Query, GetOrder.Variables>(GET_ORDER, {
                    id: orderId,
                });
                const { refundOrder } = await adminClient.query<RefundOrder.Mutation, RefundOrder.Variables>(
                    REFUND_ORDER,
                    {
                        input: {
                            lines: order!.lines.map(l => ({ orderLineId: l.id, quantity: l.quantity })),
                            shipping: order!.shipping,
                            adjustment: 0,
                            paymentId,
                        },
                    },
                );
            }, 'Cannot refund an OrderItem which has already been refunded'),
        );

        it('manually settle a Refund', async () => {
            const { settleRefund } = await adminClient.query<SettleRefund.Mutation, SettleRefund.Variables>(
                SETTLE_REFUND,
                {
                    input: {
                        id: refundId,
                        transactionId: 'aaabbb',
                    },
                },
            );

            expect(settleRefund.state).toBe('Settled');
            expect(settleRefund.transactionId).toBe('aaabbb');
        });

        it('order history contains expected entries', async () => {
            const { order } = await adminClient.query<GetOrderHistory.Query, GetOrderHistory.Variables>(
                GET_ORDER_HISTORY,
                {
                    id: orderId,
                    options: {
                        skip: 0,
                    },
                },
            );
            expect(order!.history.items.map(pick(['type', 'data']))).toEqual([
                {
                    type: HistoryEntryType.ORDER_STATE_TRANSITION,
                    data: {
                        from: 'AddingItems',
                        to: 'ArrangingPayment',
                    },
                },
                {
                    type: HistoryEntryType.ORDER_PAYMENT_TRANSITION,
                    data: {
                        paymentId: 'T_5',
                        from: 'Created',
                        to: 'Authorized',
                    },
                },
                {
                    type: HistoryEntryType.ORDER_STATE_TRANSITION,
                    data: {
                        from: 'ArrangingPayment',
                        to: 'PaymentAuthorized',
                    },
                },
                {
                    type: HistoryEntryType.ORDER_PAYMENT_TRANSITION,
                    data: {
                        paymentId: 'T_5',
                        from: 'Authorized',
                        to: 'Settled',
                    },
                },
                {
                    type: HistoryEntryType.ORDER_STATE_TRANSITION,
                    data: {
                        from: 'PaymentAuthorized',
                        to: 'PaymentSettled',
                    },
                },
                {
                    type: HistoryEntryType.ORDER_REFUND_TRANSITION,
                    data: {
                        refundId: 'T_1',
                        reason: 'foo',
                        from: 'Pending',
                        to: 'Settled',
                    },
                },
            ]);
        });
    });

    describe('order notes', () => {
        let orderId: string;

        beforeAll(async () => {
            const result = await createTestOrder(
                adminClient,
                shopClient,
                customers[2].emailAddress,
                password,
            );

            orderId = result.orderId;
        });

        it('private note', async () => {
            const { addNoteToOrder } = await adminClient.query<
                AddNoteToOrder.Mutation,
                AddNoteToOrder.Variables
            >(ADD_NOTE_TO_ORDER, {
                input: {
                    id: orderId,
                    note: 'A private note',
                    isPublic: false,
                },
            });

            expect(addNoteToOrder.id).toBe(orderId);

            const { order } = await adminClient.query<GetOrderHistory.Query, GetOrderHistory.Variables>(
                GET_ORDER_HISTORY,
                {
                    id: orderId,
                    options: {
                        skip: 0,
                    },
                },
            );

            expect(order!.history.items.map(pick(['type', 'data']))).toEqual([
                {
                    type: HistoryEntryType.ORDER_NOTE,
                    data: {
                        note: 'A private note',
                    },
                },
            ]);

            const { activeOrder } = await shopClient.query<GetActiveOrder.Query>(GET_ACTIVE_ORDER);

            expect(activeOrder!.history.items.map(pick(['type', 'data']))).toEqual([]);
        });

        it('public note', async () => {
            const { addNoteToOrder } = await adminClient.query<
                AddNoteToOrder.Mutation,
                AddNoteToOrder.Variables
            >(ADD_NOTE_TO_ORDER, {
                input: {
                    id: orderId,
                    note: 'A public note',
                    isPublic: true,
                },
            });

            expect(addNoteToOrder.id).toBe(orderId);

            const { order } = await adminClient.query<GetOrderHistory.Query, GetOrderHistory.Variables>(
                GET_ORDER_HISTORY,
                {
                    id: orderId,
                    options: {
                        skip: 1,
                    },
                },
            );

            expect(order!.history.items.map(pick(['type', 'data']))).toEqual([
                {
                    type: HistoryEntryType.ORDER_NOTE,
                    data: {
                        note: 'A public note',
                    },
                },
            ]);

            const { activeOrder } = await shopClient.query<GetActiveOrder.Query>(GET_ACTIVE_ORDER);

            expect(activeOrder!.history.items.map(pick(['type', 'data']))).toEqual([
                {
                    type: HistoryEntryType.ORDER_NOTE,
                    data: {
                        note: 'A public note',
                    },
                },
            ]);
        });
    });
});

async function createTestOrder(
    adminClient: SimpleGraphQLClient,
    shopClient: SimpleGraphQLClient,
    emailAddress: string,
    password: string,
): Promise<{
    orderId: string;
    product: GetProductWithVariants.Product;
    productVariantId: string;
}> {
    const result = await adminClient.query<GetProductWithVariants.Query, GetProductWithVariants.Variables>(
        GET_PRODUCT_WITH_VARIANTS,
        {
            id: 'T_3',
        },
    );
    const product = result.product!;
    const productVariantId = product.variants[0].id;

    // Set the ProductVariant to trackInventory
    const { updateProductVariants } = await adminClient.query<
        UpdateProductVariants.Mutation,
        UpdateProductVariants.Variables
    >(UPDATE_PRODUCT_VARIANTS, {
        input: [
            {
                id: productVariantId,
                trackInventory: true,
            },
        ],
    });

    // Add the ProductVariant to the Order
    await shopClient.asUserWithCredentials(emailAddress, password);
    const { addItemToOrder } = await shopClient.query<AddItemToOrder.Mutation, AddItemToOrder.Variables>(
        ADD_ITEM_TO_ORDER,
        {
            productVariantId,
            quantity: 2,
        },
    );
    const orderId = addItemToOrder!.id;
    return { product, productVariantId, orderId };
}

export const GET_ORDERS_LIST = gql`
    query GetOrderList($options: OrderListOptions) {
        orders(options: $options) {
            items {
                ...Order
            }
            totalItems
        }
    }
    ${ORDER_FRAGMENT}
`;

export const GET_ORDER = gql`
    query GetOrder($id: ID!) {
        order(id: $id) {
            ...OrderWithLines
        }
    }
    ${ORDER_WITH_LINES_FRAGMENT}
`;

export const SETTLE_PAYMENT = gql`
    mutation SettlePayment($id: ID!) {
        settlePayment(id: $id) {
            id
            state
            metadata
        }
    }
`;

export const CREATE_FULFILLMENT = gql`
    mutation CreateFulfillment($input: FulfillOrderInput!) {
        fulfillOrder(input: $input) {
            id
            method
            trackingCode
            orderItems {
                id
            }
        }
    }
`;

export const GET_ORDER_FULFILLMENTS = gql`
    query GetOrderFulfillments($id: ID!) {
        order(id: $id) {
            id
            fulfillments {
                id
                method
            }
        }
    }
`;

export const GET_ORDER_LIST_FULFILLMENTS = gql`
    query GetOrderListFulfillments {
        orders {
            items {
                id
                fulfillments {
                    id
                    method
                }
            }
        }
    }
`;

export const GET_ORDER_FULFILLMENT_ITEMS = gql`
    query GetOrderFulfillmentItems($id: ID!) {
        order(id: $id) {
            id
            fulfillments {
                id
                orderItems {
                    id
                }
            }
        }
    }
`;

export const CANCEL_ORDER = gql`
    mutation CancelOrder($input: CancelOrderInput!) {
        cancelOrder(input: $input) {
            id
            lines {
                quantity
                items {
                    id
                    cancelled
                }
            }
        }
    }
`;

export const REFUND_ORDER = gql`
    mutation RefundOrder($input: RefundOrderInput!) {
        refundOrder(input: $input) {
            id
            state
            items
            transactionId
            shipping
            total
            metadata
        }
    }
`;

export const SETTLE_REFUND = gql`
    mutation SettleRefund($input: SettleRefundInput!) {
        settleRefund(input: $input) {
            id
            state
            items
            transactionId
            shipping
            total
            metadata
        }
    }
`;

export const GET_ORDER_HISTORY = gql`
    query GetOrderHistory($id: ID!, $options: HistoryEntryListOptions) {
        order(id: $id) {
            id
            history(options: $options) {
                totalItems
                items {
                    id
                    type
                    administrator {
                        id
                    }
                    data
                }
            }
        }
    }
`;

export const ADD_NOTE_TO_ORDER = gql`
    mutation AddNoteToOrder($input: AddNoteToOrderInput!) {
        addNoteToOrder(input: $input) {
            id
        }
    }
`;