// The activity page's view in the address bar: a link carries the tab and every filter, a hand-edited
// value the API would refuse degrades to "no filter", a filter at its default leaves no key behind,
// and a link to a page this one replaced opens that page's tab.
import { describe, expect, it } from "vitest";

import {
  ACTIVITY_KEYS,
  activityParamsToState,
  activityParamUpdates,
  DEFAULT_ACTIVITY_STATE,
  sinceOf,
  type ActivityUrlState,
} from "./activityUrlState";

const params = (updates: Record<string, string | null>) =>
  new URLSearchParams(Object.entries(updates).filter((e): e is [string, string] => e[1] !== null));

describe("activityUrlState", () => {
  it("round-trips the tab and every filter", () => {
    const state: ActivityUrlState = {
      tab: "admin",
      window: "30d",
      user: "none",
      q: "100% done",
      job: "channel_backfill",
      status: "interrupted",
      action: "config_set",
    };
    expect(activityParamsToState(params(activityParamUpdates(state)))).toEqual(state);
  });

  it("leaves no key for a filter at its default, and opens on the runs of the last 7 days", () => {
    expect(
      Object.values(activityParamUpdates(DEFAULT_ACTIVITY_STATE)).every((v) => v === null),
    ).toBe(true);
    expect([DEFAULT_ACTIVITY_STATE.tab, DEFAULT_ACTIVITY_STATE.window]).toEqual(["runs", "7d"]);
  });

  it("drops a value the API would refuse instead of sending it", () => {
    const state = activityParamsToState(
      new URLSearchParams(
        "at=everything&aw=1y&au=me&rjob=Not-A-Job&rst=finished&aact=DROP%20TABLE",
      ),
    );
    expect(state).toEqual(DEFAULT_ACTIVITY_STATE);
  });

  it("opens the tab of the page a link still names", () => {
    expect(activityParamsToState(new URLSearchParams("page=audit")).tab).toBe("admin");
    expect(activityParamsToState(new URLSearchParams("page=logs")).tab).toBe("logs");
    // A tab the link names wins over the retired page's.
    expect(activityParamsToState(new URLSearchParams("page=logs&at=quota")).tab).toBe("quota");
  });

  it("clears its own keys and the server log's on a page change", () => {
    expect(ACTIVITY_KEYS).toEqual(expect.arrayContaining(["at", "aw", "au", "aq", "rjob", "lreq"]));
  });

  it("starts the window that many hours back", () => {
    const now = Date.UTC(2026, 9, 18, 12);
    expect(sinceOf("24h", now)).toBe("2026-10-17T12:00:00.000Z");
    expect(sinceOf("90d", now)).toBe("2026-07-20T12:00:00.000Z");
  });
});