import { beforeEach, describe, expect, it, vi } from "vitest";

const { fetchMock, invoke, rpc } = vi.hoisted(() => ({
  fetchMock: vi.fn(),
  invoke: vi.fn(),
  rpc: vi.fn(),
}));

vi.mock("../supabaseClient", () => ({
  hasSupabaseConfig: true,
  supabaseAnonKey: "anon-key",
  supabaseUrl: "https://supa.example.test",
  supabase: {
    rpc,
    functions: {
      invoke,
    },
  },
}));

import {
  buildShowcaseInvitation,
  confirmDeliveryChoice,
  fetchDeliveryInvitation,
  __resetLocalDeliveryInvitationCache,
  reportDeliveryResult,
  requestDeliveryLink,
  transferDeliveryToLogistics,
} from "./deliveryInvitationApi";

describe("deliveryInvitationApi", () => {
  beforeEach(() => {
    fetchMock.mockReset();
    invoke.mockReset();
    rpc.mockReset();
    vi.stubGlobal("fetch", fetchMock);
    __resetLocalDeliveryInvitationCache();
    const storage = new Map();
    vi.stubGlobal("localStorage", {
      getItem: (key) => storage.get(key) ?? null,
      setItem: (key, value) => {
        storage.set(key, String(value));
      },
      removeItem: (key) => {
        storage.delete(key);
      },
      clear: () => {
        storage.clear();
      },
    });
  });

  it("loads a delivery invitation by token", async () => {
    rpc.mockResolvedValueOnce({
      data: {
        ok: true,
        invitation: {
          orderId: "order-1",
          token: "token-1",
        },
      },
      error: null,
    });

    await expect(fetchDeliveryInvitation("token-1")).resolves.toEqual({
      orderId: "order-1",
      token: "token-1",
    });

    expect(rpc).toHaveBeenCalledWith("get_delivery_invitation_by_token", {
      p_token: "token-1",
    });
    expect(fetchMock).not.toHaveBeenCalled();
    expect(invoke).not.toHaveBeenCalled();
  });

  it("throws a readable error when loading invitation fails", async () => {
    rpc.mockResolvedValueOnce({
      data: null,
      error: new Error("Invitation not found"),
    });

    await expect(fetchDeliveryInvitation("token-1")).rejects.toThrow("Invitation not found");
  });

  it("returns a local showcase invitation for the preview token", async () => {
    await expect(fetchDeliveryInvitation("showcase")).resolves.toMatchObject({
      token: "showcase",
      orderNumber: "CD-CLIENT-001",
      customerName: "Мария Волкова",
      state: "awaiting_choice",
    });

    expect(invoke).toHaveBeenCalledWith("get-delivery-invitation", {
      body: {
        token: "showcase",
      },
    });
  });

  it("falls back to a local client invitation when the edge function fails", async () => {
    invoke.mockRejectedValueOnce(new Error("worker boot error"));

    await expect(fetchDeliveryInvitation("client-flow-1001")).resolves.toMatchObject({
      token: "client-flow-1001",
      orderNumber: "CD-240031",
      customerName: "Мария Волкова",
      state: "awaiting_choice",
      orderItems: [
        { name: "Кухонный гарнитур", quantity: "1 комплект" },
        { name: "Фурнитура Blum", quantity: "12 шт" },
        { name: "Монтажный комплект", quantity: "1 набор" },
      ],
      availableSlots: expect.arrayContaining([
        expect.stringMatching(/, До обеда$/),
        expect.stringMatching(/, После обеда$/),
      ]),
    });

    expect(invoke).toHaveBeenCalledWith("get-delivery-invitation", {
      body: {
        token: "client-flow-1001",
      },
    });
  });

  it("builds showcase slots for tomorrow and the following day", () => {
    const invitation = buildShowcaseInvitation("showcase", new Date("2026-04-14T09:00:00Z"));

    expect(invitation.availableSlots).toEqual([
      "2026-04-15, До обеда",
      "2026-04-15, После обеда",
      "2026-04-16, До обеда",
      "2026-04-16, После обеда",
    ]);
  });

  it("includes readable order items in the showcase invitation", () => {
    const invitation = buildShowcaseInvitation("showcase", new Date("2026-04-14T09:00:00Z"));

    expect(invitation.orderItems).toEqual([
      { name: "Кухонный гарнитур", quantity: "1 комплект" },
      { name: "Фурнитура Blum", quantity: "12 шт" },
      { name: "Монтажный комплект", quantity: "1 набор" },
    ]);
  });

  it("confirms a delivery choice with the chosen slot", async () => {
    rpc.mockResolvedValueOnce({
      data: {
        ok: true,
        orderId: "order-1",
      },
      error: null,
    });

    await expect(
      confirmDeliveryChoice({
        token: "token-1",
        deliveryDate: "2026-04-01",
        deliveryTime: "Первая половина дня",
      }),
    ).resolves.toEqual({
      ok: true,
      orderId: "order-1",
    });

    expect(rpc).toHaveBeenCalledWith("confirm_delivery_choice_by_token", {
      p_token: "token-1",
      p_delivery_date: "2026-04-01",
      p_delivery_time: "Первая половина дня",
    });
    expect(invoke).not.toHaveBeenCalled();
  });

  it("updates the local client invitation when confirmation falls back to cache", async () => {
    invoke.mockRejectedValueOnce(new Error("worker boot error"));
    await fetchDeliveryInvitation("client-flow-1001");

    invoke.mockRejectedValueOnce(new Error("worker boot error"));
    await expect(
      confirmDeliveryChoice({
        token: "client-flow-1001",
        deliveryDate: "2026-04-16",
        deliveryTime: "После обеда",
      }),
    ).resolves.toMatchObject({
      ok: true,
      invitation: {
        token: "client-flow-1001",
        deliveryDate: "2026-04-16",
        deliveryTime: "После обеда",
        state: "confirmed",
      },
    });

    await expect(fetchDeliveryInvitation("client-flow-1001")).resolves.toMatchObject({
      token: "client-flow-1001",
      deliveryDate: "2026-04-16",
      deliveryTime: "После обеда",
      state: "confirmed",
    });
  });

  it("restores the saved local client invitation after cache reset", async () => {
    invoke.mockRejectedValueOnce(new Error("worker boot error"));
    await fetchDeliveryInvitation("client-flow-1001");

    invoke.mockRejectedValueOnce(new Error("worker boot error"));
    await confirmDeliveryChoice({
      token: "client-flow-1001",
      deliveryDate: "2026-04-16",
      deliveryTime: "После обеда",
    });

    __resetLocalDeliveryInvitationCache();

    await expect(fetchDeliveryInvitation("client-flow-1001")).resolves.toMatchObject({
      token: "client-flow-1001",
      deliveryDate: "2026-04-16",
      deliveryTime: "После обеда",
      state: "confirmed",
    });
  });

  it("creates a delivery invitation from order data", async () => {
    invoke.mockResolvedValueOnce({
      data: {
        ok: true,
        invitation: {
          orderId: "order-1",
        },
      },
      error: null,
    });

    await expect(
      requestDeliveryLink({
        orderId: "order-1",
        orderNumber: "CD-240031",
        customerName: "Мария Волкова",
        availableSlots: ["Первая половина дня"],
      }),
    ).resolves.toEqual({
      ok: true,
      invitation: {
        orderId: "order-1",
      },
    });

    expect(invoke).toHaveBeenCalledWith("create-delivery-invitation", {
      body: {
        orderId: "order-1",
        orderNumber: "CD-240031",
        customerName: "Мария Волкова",
        availableSlots: ["Первая половина дня"],
      },
    });
  });

  it("transfers the order to logistics", async () => {
    invoke.mockResolvedValueOnce({
      data: { ok: true },
      error: null,
    });

    await expect(
      transferDeliveryToLogistics({
        orderId: "order-1",
        reason: "no_response",
      }),
    ).resolves.toEqual({ ok: true });

    expect(invoke).toHaveBeenCalledWith("transfer-to-logistics", {
      body: {
        orderId: "order-1",
        reason: "no_response",
      },
    });
  });

  it("reports delivery result", async () => {
    invoke.mockResolvedValueOnce({
      data: { ok: true },
      error: null,
    });

    await expect(
      reportDeliveryResult({
        orderId: "order-1",
        result: "delivered",
        note: "Передано клиенту",
      }),
    ).resolves.toEqual({ ok: true });

    expect(invoke).toHaveBeenCalledWith("report-delivery-result", {
      body: {
        orderId: "order-1",
        result: "delivered",
        note: "Передано клиенту",
      },
    });
  });
});