import { screen, waitFor, within } from "@testing-library/react";
import userEvent from "@testing-library/user-event";
import { useLocation } from "react-router";
import { beforeEach, describe, expect, it, vi } from "vitest";

import { NotificationBell } from "@/components/notifications/notification-bell";
import { NotificationSessionProvider } from "@/domain/notifications/session/notification-session-provider";
import { renderWithProviders } from "@/test/test-utils";

const apiGet = vi.hoisted(() => vi.fn());

vi.mock("@/api/api", () => ({ apiGet }));

vi.mock("@/providers/auth-context", async (importOriginal) => ({
  ...(await importOriginal<typeof import("@/providers/auth-context")>()),
  useAuthContext: () => ({ user: { id: "dispatcher-me" } }),
}));

type Target = { kind: "workOrder" | "queue"; workOrderId?: number; tab?: string; queue?: string };

function item(
  id: string,
  reason: string,
  severity: string,
  title: string,
  target: Target,
  extra = {},
) {
  return {
    id,
    reason,
    severity,
    rowType: "dismissable",
    title,
    count: 1,
    triggeredAt: "2026-09-18T12:00:00Z",
    target,
    workOrders: [],
    ...extra,
  };
}

const mention = item("mention-501", "mentions", "High", "Omar Diaz mentioned you on WO #1011", {
  kind: "workOrder",
  workOrderId: 11,
  tab: "comments",
});

const comments = item(
  "comments-12-505",
  "activity",
  "Medium",
  "2 new comments on WO #1012",
  { kind: "workOrder", workOrderId: 12, tab: "comments" },
  { triggeredAt: "2026-09-18T09:30:00Z" },
);

const assignedGroup = item(
  "new-assigned-group-30",
  "activity",
  "Low",
  "3 new work orders assigned to you",
  { kind: "queue", queue: "assigned-to-me" },
  { count: 3 },
);

const assignedOne = item("new-assigned-40", "activity", "Low", "WO #1040 was assigned to you", {
  kind: "workOrder",
  workOrderId: 40,
  tab: "info",
});

const upliftRejected = item(
  "uplift-rejected-9",
  "activity",
  "High",
  "Your $400.00 uplift on WO #1020 was rejected: “Quote does not match”",
  { kind: "workOrder", workOrderId: 20, tab: "uplifts" },
);

const feed = {
  generatedAt: "2026-09-18T16:00:00Z",
  sections: [
    { reason: "mentions", label: "Mentions", severity: "High", count: 1, items: [mention] },
    {
      reason: "activity",
      label: "Recent activity",
      severity: "High",
      count: 6,
      items: [upliftRejected, comments, assignedOne, assignedGroup],
    },
  ],
};

function LocationProbe() {
  const location = useLocation();
  return <output aria-label="Current location">{`${location.pathname}${location.search}`}</output>;
}

async function openItem(title: RegExp) {
  const user = userEvent.setup();
  renderWithProviders(
    <NotificationSessionProvider>
      <NotificationBell />
      <LocationProbe />
    </NotificationSessionProvider>,
    { withAuth: false },
  );
  await user.click(await screen.findByRole("button", { name: /^Notifications, \d+ unread$/ }));
  const panel = await screen.findByRole("dialog");
  await user.click(within(panel).getByRole("button", { name: title }));
  await waitFor(() => expect(screen.queryByRole("dialog")).not.toBeInTheDocument());
  const location = screen.getByRole("status", { name: "Current location" }).textContent ?? "";
  return new URL(location, "http://localhost");
}

describe("event notifications in the Notification Center", () => {
  beforeEach(() => {
    apiGet.mockReset();
    apiGet.mockResolvedValue(feed);
  });

  it("lists mentions, comments, assignments and uplift decisions in their sections", async () => {
    const user = userEvent.setup();
    renderWithProviders(
      <NotificationSessionProvider>
        <NotificationBell />
      </NotificationSessionProvider>,
      { withAuth: false },
    );

    await user.click(await screen.findByRole("button", { name: "Notifications, 5 unread" }));
    const panel = await screen.findByRole("dialog");
    const mentions = within(panel).getByRole("region", { name: "Mentions, 1" });
    expect(within(mentions).getByText(mention.title)).toBeInTheDocument();
    const activity = within(panel).getByRole("region", { name: "Recent activity, 6" });
    for (const row of [upliftRejected, comments, assignedOne, assignedGroup]) {
      expect(within(activity).getByText(row.title)).toBeInTheDocument();
    }
  });

  it("opens a comment item on the Comments tab with the comments to highlight", async () => {
    const url = await openItem(/2 new comments on WO #1012/);

    expect(url.pathname).toBe("/workorders");
    expect(url.searchParams.get("wo")).toBe("12");
    expect(url.searchParams.get("tab")).toBe("comments");
    expect(url.searchParams.get("since")).toBe("2026-09-18T09:30:00Z");
    expect(url.searchParams.get("focus")).toBe("comments");
  });

  it("opens a mention on the Comments tab focused on the mentioning comment", async () => {
    const url = await openItem(/Omar Diaz mentioned you on WO #1011/);

    expect(url.searchParams.get("wo")).toBe("11");
    expect(url.searchParams.get("tab")).toBe("comments");
    expect(url.searchParams.get("since")).toBe("2026-09-18T12:00:00Z");
    expect(url.searchParams.get("focus")).toBe("mentions");
  });

  it("opens a grouped assignment as the signed-in dispatcher's open queue", async () => {
    const url = await openItem(/3 new work orders assigned to you/);

    expect(url.pathname).toBe("/workorders");
    expect(url.searchParams.get("dispatchers")).toBe("dispatcher-me");
    expect(url.searchParams.get("dateFrom")).toBe("1970-01-01");
    expect(url.searchParams.get("dateTo")).toBe("2099-12-31");
    expect(url.searchParams.get("statuses")).toBeTruthy();
    expect(url.searchParams.get("wo")).toBeNull();
  });

  it("opens a single assignment straight on the work order, with no highlight", async () => {
    const url = await openItem(/WO #1040 was assigned to you/);

    expect(`${url.pathname}${url.search}`).toBe("/workorders?wo=40&tab=info");
  });

  it("opens an uplift decision on the work order's uplifts", async () => {
    const url = await openItem(/uplift on WO #1020 was rejected/);

    expect(`${url.pathname}${url.search}`).toBe("/workorders?wo=20&tab=uplifts");
  });
});