const path = require("path");
const { Region, LineItem, GiftCard } = require("@medusajs/medusa");

const setupServer = require("../../../helpers/setup-server");
const { useApi } = require("../../../helpers/use-api");
const { initDb, useDb } = require("../../../helpers/use-db");

const cartSeeder = require("../../helpers/cart-seeder");

jest.setTimeout(30000);

describe("/store/carts", () => {
  let medusaProcess;
  let dbConnection;

  const doAfterEach = async () => {
    const db = useDb();
    return await db.teardown();
  };

  beforeAll(async () => {
    const cwd = path.resolve(path.join(__dirname, "..", ".."));
    dbConnection = await initDb({ cwd });
    medusaProcess = await setupServer({ cwd });
  });

  afterAll(async () => {
    const db = useDb();
    await db.shutdown();
    medusaProcess.kill();
  });

  describe("POST /store/carts", () => {
    beforeEach(async () => {
      const manager = dbConnection.manager;
      await manager.insert(Region, {
        id: "region",
        name: "Test Region",
        currency_code: "usd",
        tax_rate: 0,
      });
      await manager.query(
        `UPDATE "country" SET region_id='region' WHERE iso_2 = 'us'`
      );
    });

    afterEach(async () => {
      await doAfterEach();
    });

    it("creates a cart", async () => {
      const api = useApi();

      const response = await api.post("/store/carts");
      expect(response.status).toEqual(200);

      const getRes = await api.post(`/store/carts/${response.data.cart.id}`);
      expect(getRes.status).toEqual(200);
    });

    it("creates a cart with country", async () => {
      const api = useApi();

      const response = await api.post("/store/carts", {
        country_code: "us",
      });
      expect(response.status).toEqual(200);
      expect(response.data.cart.shipping_address.country_code).toEqual("us");

      const getRes = await api.post(`/store/carts/${response.data.cart.id}`);
      expect(getRes.status).toEqual(200);
    });

    it("creates a cart with context", async () => {
      const api = useApi();
      const response = await api.post("/store/carts", {
        context: {
          test_id: "test",
        },
      });
      expect(response.status).toEqual(200);

      const getRes = await api.post(`/store/carts/${response.data.cart.id}`);
      expect(getRes.status).toEqual(200);

      const cart = getRes.data.cart;
      expect(cart.context).toEqual({
        ip: "::ffff:127.0.0.1",
        user_agent: "axios/0.21.1",
        test_id: "test",
      });
    });
  });

  describe("POST /store/carts/:id", () => {
    beforeEach(async () => {
      try {
        await cartSeeder(dbConnection);
      } catch (err) {
        console.log(err);
        throw err;
      }
    });

    afterEach(async () => {
      await doAfterEach();
    });

    it("fails on apply discount if limit has been reached", async () => {
      const api = useApi();

      try {
        await api.post("/store/carts/test-cart", {
          discounts: [{ code: "CREATED" }],
        });
      } catch (error) {
        expect(error.response.status).toEqual(400);
        expect(error.response.data.message).toEqual(
          "Discount has been used maximum allowed times"
        );
      }
    });

    it("updates cart customer id", async () => {
      const api = useApi();

      const response = await api.post("/store/carts/test-cart", {
        customer_id: "test-customer-2",
      });

      expect(response.status).toEqual(200);
    });

    it("updates address using string id", async () => {
      const api = useApi();

      const response = await api.post("/store/carts/test-cart", {
        billing_address: "test-general-address",
        shipping_address: "test-general-address",
      });

      expect(response.data.cart.shipping_address_id).toEqual(
        "test-general-address"
      );
      expect(response.data.cart.billing_address_id).toEqual(
        "test-general-address"
      );
      expect(response.status).toEqual(200);
    });

    it("updates address", async () => {
      const api = useApi();

      const response = await api.post("/store/carts/test-cart", {
        shipping_address: {
          first_name: "clark",
          last_name: "kent",
          address_1: "5th avenue",
          city: "nyc",
          country_code: "us",
          postal_code: "something",
        },
      });

      expect(response.data.cart.shipping_address.first_name).toEqual("clark");
      expect(response.status).toEqual(200);
    });

    it("adds free shipping to cart then removes it again", async () => {
      const api = useApi();

      let cart = await api.post(
        "/store/carts/test-cart",
        {
          discounts: [{ code: "FREE_SHIPPING" }, { code: "CREATED" }],
        },
        { withCredentials: true }
      );

      expect(cart.data.cart.shipping_total).toBe(0);
      expect(cart.status).toEqual(200);

      cart = await api.post(
        "/store/carts/test-cart",
        {
          discounts: [{ code: "CREATED" }],
        },
        { withCredentials: true }
      );

      expect(cart.data.cart.shipping_total).toBe(1000);
      expect(cart.status).toEqual(200);
    });

    it("complete cart with giftcard total 0", async () => {
      const manager = dbConnection.manager;
      await manager.insert(GiftCard, {
        id: "gift_test",
        code: "GC_TEST",
        value: 20000,
        balance: 20000,
        region_id: "test-region",
      });

      const api = useApi();

      await api.post(`/store/carts/test-cart-3`, {
        gift_cards: [{ code: "GC_TEST" }],
      });

      const getRes = await api
        .post(`/store/carts/test-cart-3/complete`)
        .catch((err) => {
          console.log(err.response.data);
        });

      expect(getRes.status).toEqual(200);
      expect(getRes.data.type).toEqual("order");
    });

    it("complete cart with items inventory covered", async () => {
      const api = useApi();
      const getRes = await api.post(`/store/carts/test-cart-2/complete-cart`);

      expect(getRes.status).toEqual(200);

      const variantRes = await api.get("/store/variants/test-variant");
      expect(variantRes.data.variant.inventory_quantity).toEqual(0);
    });

    it("returns early, if cart is already completed", async () => {
      const manager = dbConnection.manager;
      const api = useApi();
      await manager.query(
        `UPDATE "cart" SET completed_at=current_timestamp WHERE id = 'test-cart-2'`
      );
      try {
        await api.post(`/store/carts/test-cart-2/complete-cart`);
      } catch (error) {
        expect(error.response.data).toMatchSnapshot({
          code: "not_allowed",
          message: "Cart has already been completed",
          code: "cart_incompatible_state",
        });
        expect(error.response.status).toEqual(409);
      }
    });

    it("fails to complete cart with items inventory not/partially covered", async () => {
      const manager = dbConnection.manager;

      const li = manager.create(LineItem, {
        id: "test-item",
        title: "Line Item",
        description: "Line Item Desc",
        thumbnail: "https://test.js/1234",
        unit_price: 8000,
        quantity: 99,
        variant_id: "test-variant-2",
        cart_id: "test-cart-2",
      });
      await manager.save(li);

      const api = useApi();

      try {
        await api.post(`/store/carts/test-cart-2/complete-cart`);
      } catch (e) {
        expect(e.response.data).toMatchSnapshot({
          code: "insufficient_inventory",
        });
        expect(e.response.status).toBe(409);
      }

      //check to see if payment has been cancelled
      const res = await api.get(`/store/carts/test-cart-2`);
      expect(res.data.cart.payment.canceled_at).not.toBe(null);
    });
  });

  describe("POST /store/carts/:id/shipping-methods", () => {
    beforeEach(async () => {
      await cartSeeder(dbConnection);
    });

    afterEach(async () => {
      await doAfterEach();
    });

    it("adds a shipping method to cart", async () => {
      const api = useApi();

      const cartWithShippingMethod = await api.post(
        "/store/carts/test-cart/shipping-methods",
        {
          option_id: "test-option",
        },
        { withCredentials: true }
      );

      expect(cartWithShippingMethod.data.cart.shipping_methods).toContainEqual(
        expect.objectContaining({ shipping_option_id: "test-option" })
      );
      expect(cartWithShippingMethod.status).toEqual(200);
    });

    it("adds a giftcard to cart, but ensures discount only applied to discountable items", async () => {
      const api = useApi();

      // Add standard line item to cart
      await api.post(
        "/store/carts/test-cart/line-items",
        {
          variant_id: "test-variant",
          quantity: 1,
        },
        { withCredentials: true }
      );

      // Add gift card to cart
      await api.post(
        "/store/carts/test-cart/line-items",
        {
          variant_id: "giftcard-denom",
          quantity: 1,
        },
        { withCredentials: true }
      );

      // Add a 10% discount to the cart
      const cartWithGiftcard = await api.post(
        "/store/carts/test-cart",
        {
          discounts: [{ code: "10PERCENT" }],
        },
        { withCredentials: true }
      );

      // Ensure that the discount is only applied to the standard item
      expect(cartWithGiftcard.data.cart.total).toBe(1900); // 1000 (giftcard) + 900 (standard item with 10% discount)
      expect(cartWithGiftcard.data.cart.discount_total).toBe(100);
      expect(cartWithGiftcard.status).toEqual(200);
    });

    it("adds no more than 1 shipping method per shipping profile", async () => {
      const api = useApi();
      const addShippingMethod = async (option_id) => {
        return await api.post(
          "/store/carts/test-cart/shipping-methods",
          {
            option_id,
          },
          { withCredentials: true }
        );
      };

      await addShippingMethod("test-option");
      const cartWithAnotherShippingMethod = await addShippingMethod(
        "test-option-2"
      );

      expect(
        cartWithAnotherShippingMethod.data.cart.shipping_methods.length
      ).toEqual(1);
      expect(
        cartWithAnotherShippingMethod.data.cart.shipping_methods
      ).toContainEqual(
        expect.objectContaining({
          shipping_option_id: "test-option-2",
          price: 500,
        })
      );
      expect(cartWithAnotherShippingMethod.status).toEqual(200);
    });
  });

  describe("DELETE /store/carts/:id/discounts/:code", () => {
    beforeEach(async () => {
      try {
        await cartSeeder(dbConnection);
        await dbConnection.manager.query(
          `INSERT INTO "cart_discounts" (cart_id, discount_id) VALUES ('test-cart', 'free-shipping')`
        );
      } catch (err) {
        console.log(err);
        throw err;
      }
    });

    afterEach(async () => {
      await doAfterEach();
    });

    it("removes free shipping and updates shipping total", async () => {
      const api = useApi();

      const cartWithFreeShipping = await api.post(
        "/store/carts/test-cart",
        {
          discounts: [{ code: "FREE_SHIPPING" }],
        },
        { withCredentials: true }
      );

      expect(cartWithFreeShipping.data.cart.shipping_total).toBe(0);
      expect(cartWithFreeShipping.status).toEqual(200);

      const response = await api.delete(
        "/store/carts/test-cart/discounts/FREE_SHIPPING"
      );

      expect(response.data.cart.shipping_total).toBe(1000);
      expect(response.status).toEqual(200);
    });
  });

  describe("get-cart with session customer", () => {
    beforeEach(async () => {
      try {
        await cartSeeder(dbConnection);
      } catch (err) {
        console.log(err);
        throw err;
      }
    });

    afterEach(async () => {
      await doAfterEach();
    });

    it("updates empty cart.customer_id on cart retrieval", async () => {
      const api = useApi();

      let customer = await api.post(
        "/store/customers",
        {
          email: "oli@test.dk",
          password: "olitest",
          first_name: "oli",
          last_name: "oli",
        },
        { withCredentials: true }
      );

      const cookie = customer.headers["set-cookie"][0];

      const cart = await api.post(
        "/store/carts",
        {},
        { withCredentials: true }
      );

      const response = await api.get(`/store/carts/${cart.data.cart.id}`, {
        headers: {
          cookie,
        },
        withCredentials: true,
      });

      expect(response.data.cart.customer_id).toEqual(customer.data.customer.id);
      expect(response.status).toEqual(200);
    });

    it("updates cart.customer_id on cart retrieval if cart.customer_id differ from session customer", async () => {
      const api = useApi();

      let customer = await api.post(
        "/store/customers",
        {
          email: "oli@test.dk",
          password: "olitest",
          first_name: "oli",
          last_name: "oli",
        },
        { withCredentials: true }
      );

      const cookie = customer.headers["set-cookie"][0];

      const cart = await api.post("/store/carts");

      const updatedCart = await api.post(`/store/carts/${cart.data.cart.id}`, {
        customer_id: "test-customer",
      });

      const response = await api.get(
        `/store/carts/${updatedCart.data.cart.id}`,
        {
          headers: {
            cookie,
          },
        }
      );

      expect(response.data.cart.customer_id).toEqual(customer.data.customer.id);
      expect(response.status).toEqual(200);
    });
  });
});