import { test } from "node:test";
import assert from "node:assert/strict";
import { resolvePersistenceDecision } from "./persistencePlan";

// Run with:
//   pnpm --filter yt-dlp-transcript-common exec tsx --test ytdlp/persistencePlan.test.ts

test("outside the window with no overrides: audio-only via channel mode", () => {
  const d = resolvePersistenceDecision({ inWindow: false, pinned: false });
  assert.equal(d.persist, false);
  assert.equal(d.extractionMode, "ytdlp");
});

test("channel app extraction is honored for audio-only downloads", () => {
  const d = resolvePersistenceDecision({
    inWindow: false,
    pinned: false,
    channelExtractionMode: "app",
  });
  assert.equal(d.persist, false);
  assert.equal(d.extractionMode, "app");
});

test("inside the keep-latest window persists via app extraction", () => {
  const d = resolvePersistenceDecision({ inWindow: true, pinned: false });
  assert.equal(d.persist, true);
  assert.equal(d.extractionMode, "app");
  assert.equal(d.category, "keep-latest");
});

test("a do-not-clean pin persists even outside the window", () => {
  const d = resolvePersistenceDecision({ inWindow: false, pinned: true });
  assert.equal(d.persist, true);
  assert.equal(d.extractionMode, "app");
  assert.equal(d.category, "pin");
});

test("category is 'none' for an audio-only outcome", () => {
  const d = resolvePersistenceDecision({ inWindow: false, pinned: false });
  assert.equal(d.category, "none");
});

test("extractImmediately overrides the keep-latest window", () => {
  const d = resolvePersistenceDecision({
    inWindow: true,
    pinned: true,
    overrides: { extractImmediately: true },
  });
  assert.equal(d.persist, false);
});

test("keepSourceVideoOverride=true persists an out-of-window video", () => {
  const d = resolvePersistenceDecision({
    inWindow: false,
    pinned: false,
    overrides: { keepSourceVideoOverride: true },
  });
  assert.equal(d.persist, true);
  assert.equal(d.extractionMode, "app");
  assert.equal(d.category, "override");
});

test("keepSourceVideoOverride=false beats the window and extractImmediately", () => {
  const d = resolvePersistenceDecision({
    inWindow: true,
    pinned: true,
    overrides: { keepSourceVideoOverride: false, extractImmediately: true },
  });
  assert.equal(d.persist, false);
});