import { test } from "node:test";
import assert from "node:assert/strict";
import {
  ASK_SCOPE_LINE,
  LIVE_CHAT_MISSING,
  NO_ARCHIVES_IN_SCOPE,
  NO_ARCHIVES_ON_HUB,
  copy,
  link,
} from "./hubScopeCopy";

// The hub's copy lines carry their link in the line itself — copy`…${link("…")}…`
// — so nothing is parsed out of the words (it used to be a [bracketed] phrase
// found by a regex; the operator ruled that out, 2026-09-28).

test("a line with a link: its text, and the words either side of the link", () => {
  assert.deepEqual(copy`Choose some on the ${link("hub's front page")} to ask.`, {
    before: "Choose some on the ",
    link: "hub's front page",
    after: " to ask.",
    text: "Choose some on the hub's front page to ask.",
  });
});

test("a line with no link is all text; plain interpolations are text, brackets too", () => {
  const n = 3;
  assert.deepEqual(copy`Searching ${n} of ${"4"} [archives].`, {
    before: "Searching 3 of 4 [archives].",
    after: "",
    text: "Searching 3 of 4 [archives].",
  });
  // A link may sit anywhere, and text after it may interpolate too.
  assert.deepEqual(copy`${link("Here")} — ${2} left`, {
    before: "",
    link: "Here",
    after: " — 2 left",
    text: "Here — 2 left",
  });
});

test("two links in one line throw (a programmer error, caught when the line is built)", () => {
  assert.throws(
    () => copy`${link("one")} and ${link("two")}`,
    /links one phrase at most: "one" and "two"/,
  );
});

test("the four shipped lines read as the operator ruled them (2026-09-28)", () => {
  assert.equal(NO_ARCHIVES_IN_SCOPE.text, "No archives selected. Choose some on the hub's front page to ask.");
  assert.equal(NO_ARCHIVES_IN_SCOPE.link, "hub's front page");
  assert.equal(NO_ARCHIVES_ON_HUB.text, "This hub has no archives yet. Add one on the hub's front page to ask.");
  assert.equal(NO_ARCHIVES_ON_HUB.link, "hub's front page");
  assert.equal(LIVE_CHAT_MISSING, "live chat didn't load");
  assert.deepEqual(ASK_SCOPE_LINE(1, 2), {
    before: "Searching 1 of 2 archives — ",
    link: "change on the front page",
    after: ".",
    text: "Searching 1 of 2 archives — change on the front page.",
  });
  assert.equal(ASK_SCOPE_LINE(1, 1)?.text, "Searching 1 of 1 archive — change on the front page.");
});