import { test } from "node:test";
import assert from "node:assert/strict";
import {
  QUOTE_CHECK_METHOD,
  QUOTE_DRIFT_THRESHOLD,
  cueWindowText,
  quoteDrifted,
  quoteTokens,
  quoteVerification,
  tokenRecall,
} from "./verify";

test("tokens: lowercased, punctuation stripped, split on whitespace", () => {
  assert.deepEqual(quoteTokens("Don't stop — the U.S. bridge, OK?"), ["dont", "stop", "the", "us", "bridge", "ok"]);
  assert.deepEqual(quoteTokens("Café   2019\nnew"), ["café", "2019", "new"]);
  assert.deepEqual(quoteTokens("…"), []);
});

test("recall: a verbatim quote scores 1 however much more the window says", () => {
  assert.equal(tokenRecall("I was there for it.", "The bridge opened in spring, I was there for it. Anyway."), 1);
});

test("recall: each window token is used once; missing tokens lower the score", () => {
  assert.equal(tokenRecall("the the the", "the"), 1 / 3);
  assert.equal(tokenRecall("he opened the bridge himself", "the bridge opened"), 3 / 5);
  assert.equal(tokenRecall("", "anything"), 0);
  assert.equal(tokenRecall("words", ""), 0);
});

test("the cue window takes every cue overlapping the span ± 5 s", () => {
  const cues = [
    { start: 0, end: 4, text: "too early" },
    { start: 4, end: 6, text: "edge before" },
    { start: 10, end: 20, text: "inside" },
    { start: 24, end: 26, text: "edge after" },
    { start: 26, end: 30, text: "too late" },
  ];
  assert.equal(cueWindowText(cues, 10, 20), "edge before inside edge after");
  assert.equal(cueWindowText(cues, 10, 20, 0), "inside");
});

test("the block: rounded score, the time, the method; drift below the threshold", () => {
  const v = quoteVerification("he opened the bridge himself", "the bridge opened", "2026-10-05T12:00:00.000Z");
  assert.deepEqual(v, { quoteScore: 0.6, quoteCheckedAt: "2026-10-05T12:00:00.000Z", method: QUOTE_CHECK_METHOD });
  assert.equal(quoteDrifted(v), false);
  assert.equal(quoteDrifted({ quoteScore: QUOTE_DRIFT_THRESHOLD - 0.01 }), true);
  assert.equal(quoteDrifted({}), true);
  assert.ok(!("voiceChecked" in v), "a voice is never vouched for");
});