import { act, fireEvent, screen, waitFor } from "@testing-library/react";
import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";

import { RefuseDispatchDialog } from "@/app/v/[token]/dispatch/_components/refuse-dispatch-dialog";
import {
  VendorPortalContext,
  type VendorPortalContextValue,
} from "@/app/v/_components/vendor-portal-context";
import { vendorPortalApi } from "@/domain/vendor-portal/api/vendor-portal-api";
import { REFUSE_REASON_MAX_LENGTH } from "@/domain/vendor-portal/schemas/refuse-dispatch-schema";
import { queryKeys } from "@/infra/query-key/query-key";
import { createTestQueryClient, renderWithProviders } from "@/test/test-utils";

function renderDialog({
  token = "portal-token",
  dispatchId = 9,
  onClose = vi.fn(),
  onRefused = vi.fn(),
}: Partial<{
  token: string;
  dispatchId: number;
  onClose: () => void;
  onRefused: () => void;
}> = {}) {
  const queryClient = createTestQueryClient();
  const invalidateSpy = vi.spyOn(queryClient, "invalidateQueries");

  const portalValue: VendorPortalContextValue = {
    token,
    vendor: { companyName: "Gateway Plumbing", vendorId: 101 },
    status: "ready",
    error: null,
  };

  const utils = renderWithProviders(
    <VendorPortalContext.Provider value={portalValue}>
      <RefuseDispatchDialog open dispatchId={dispatchId} onClose={onClose} onRefused={onRefused} />
    </VendorPortalContext.Provider>,
    { withAuth: false, queryClient },
  );

  return { ...utils, invalidateSpy, queryClient };
}

beforeEach(() => {
  vi.spyOn(vendorPortalApi, "refuse").mockResolvedValue({ id: 9, status: "Refused" });
});

afterEach(() => {
  vi.restoreAllMocks();
});

describe("RefuseDispatchDialog", () => {
  it("submits without a reason when the field is left empty", async () => {
    renderDialog();

    await act(async () => {
      fireEvent.click(screen.getByRole("button", { name: "Refuse dispatch" }));
    });

    await waitFor(() =>
      expect(vendorPortalApi.refuse).toHaveBeenCalledWith("portal-token", 9, undefined),
    );
  });

  it("trims a supplied reason before sending", async () => {
    renderDialog();

    fireEvent.change(screen.getByLabelText(/Reason/i), { target: { value: "  too busy  " } });
    await act(async () => {
      fireEvent.click(screen.getByRole("button", { name: "Refuse dispatch" }));
    });

    await waitFor(() =>
      expect(vendorPortalApi.refuse).toHaveBeenCalledWith("portal-token", 9, "too busy"),
    );
  });

  it("blocks submission when the reason exceeds the length cap", async () => {
    renderDialog();

    const overLimit = "a".repeat(REFUSE_REASON_MAX_LENGTH + 1);
    fireEvent.change(screen.getByLabelText(/Reason/i), { target: { value: overLimit } });

    await waitFor(() =>
      expect(screen.getByRole("button", { name: "Refuse dispatch" })).toBeDisabled(),
    );
    expect(vendorPortalApi.refuse).not.toHaveBeenCalled();
  });

  it("shows a live character counter bounded by the limit", () => {
    renderDialog();

    fireEvent.change(screen.getByLabelText(/Reason/i), { target: { value: "abc" } });

    expect(screen.getByText(`3/${REFUSE_REASON_MAX_LENGTH}`)).toBeInTheDocument();
  });

  it("invalidates the detail and list cache and closes on success", async () => {
    const onClose = vi.fn();
    const onRefused = vi.fn();
    const { invalidateSpy } = renderDialog({ onClose, onRefused });

    await act(async () => {
      fireEvent.click(screen.getByRole("button", { name: "Refuse dispatch" }));
    });

    await waitFor(() => expect(onClose).toHaveBeenCalled());
    expect(onRefused).toHaveBeenCalled();
    expect(invalidateSpy).toHaveBeenCalledWith({
      queryKey: queryKeys.vendorPortal.dispatch("portal-token", 9),
    });
    expect(invalidateSpy).toHaveBeenCalledWith({
      queryKey: queryKeys.vendorPortal.dispatches("portal-token"),
    });
  });

  it("surfaces a safe inline error and keeps the dialog open on failure", async () => {
    vi.spyOn(vendorPortalApi, "refuse").mockRejectedValueOnce(new Error("nope"));
    const onClose = vi.fn();
    renderDialog({ onClose });

    await act(async () => {
      fireEvent.click(screen.getByRole("button", { name: "Refuse dispatch" }));
    });

    await waitFor(() => expect(screen.getByRole("alert")).toHaveTextContent(/Unable to refuse/i));
    expect(onClose).not.toHaveBeenCalled();
  });

  it("closes without refusing when cancel is pressed", async () => {
    const onClose = vi.fn();
    renderDialog({ onClose });

    fireEvent.click(screen.getByRole("button", { name: "Cancel" }));

    await waitFor(() => expect(onClose).toHaveBeenCalled());
    expect(vendorPortalApi.refuse).not.toHaveBeenCalled();
  });

  it("blocks Escape and backdrop close while a refusal is pending, then closes on success", async () => {
    let resolveRefusal!: (value: { id: number; status: string }) => void;
    vi.spyOn(vendorPortalApi, "refuse").mockImplementation(
      () =>
        new Promise((resolve) => {
          resolveRefusal = resolve;
        }),
    );
    const onClose = vi.fn();
    renderDialog({ onClose });

    await act(async () => {
      fireEvent.click(screen.getByRole("button", { name: "Refuse dispatch" }));
    });

    await waitFor(() => expect(screen.getByRole("button", { name: "Refusing…" })).toBeDisabled());
    expect(screen.getByRole("button", { name: "Cancel" })).toBeDisabled();

    const backdrop = document.querySelector(".MuiBackdrop-root");
    expect(backdrop).not.toBeNull();
    fireEvent.click(backdrop as Element);
    fireEvent.keyDown(document.body, { key: "Escape" });

    expect(onClose).not.toHaveBeenCalled();

    await act(async () => {
      resolveRefusal({ id: 9, status: "Refused" });
    });

    await waitFor(() => expect(onClose).toHaveBeenCalled());
  });

  it("clears the stale error and reason after closing and reopening", async () => {
    vi.spyOn(vendorPortalApi, "refuse").mockRejectedValueOnce(new Error("nope"));
    const onClose = vi.fn();
    const onRefused = vi.fn();

    const portalValue: VendorPortalContextValue = {
      token: "portal-token",
      vendor: { companyName: "Gateway Plumbing", vendorId: 101 },
      status: "ready",
      error: null,
    };
    const renderEl = (open: boolean) => (
      <VendorPortalContext.Provider value={portalValue}>
        <RefuseDispatchDialog open={open} dispatchId={9} onClose={onClose} onRefused={onRefused} />
      </VendorPortalContext.Provider>
    );

    const { rerender } = renderWithProviders(renderEl(true), { withAuth: false });

    fireEvent.change(screen.getByLabelText(/Reason/i), { target: { value: "too busy" } });
    await act(async () => {
      fireEvent.click(screen.getByRole("button", { name: "Refuse dispatch" }));
    });
    await waitFor(() => expect(screen.getByRole("alert")).toHaveTextContent(/Unable to refuse/i));
    expect(screen.getByText(`8/${REFUSE_REASON_MAX_LENGTH}`)).toBeInTheDocument();

    await act(async () => {
      rerender(renderEl(false));
    });

    await act(async () => {
      rerender(renderEl(true));
    });

    await waitFor(() => expect(screen.queryByRole("alert")).not.toBeInTheDocument());
    expect(screen.getByText(`0/${REFUSE_REASON_MAX_LENGTH}`)).toBeInTheDocument();
  });
});