import { expect, test } from "bun:test";
import { parsePacktIndex } from "../src/packt";
import { packtIndexHtml } from "./fixtures";

test("sections, clip titles and video files come from the structure", () => {
  const p = parsePacktIndex(packtIndexHtml());
  expect(p.title).toBe("Fake Docker Course");
  expect(p.sections.map((s) => s.title)).toEqual(["Intro to Docker", "Images (Sample)"]);
  expect(p.sections[0]!.clips).toEqual([
    { number: 1, title: "Course Introduction", video: "videos/video1_1.mp4" },
    { number: 2, title: "Docker & Friends", video: "videos/video1_2.mp4" },
  ]);
  expect(p.sections[1]!.clips[0]!.video).toBe("videos/video2_1.mp4");
  expect(p.warnings).toEqual([]);
});

test("a section without a chapter block falls back to the overview list", () => {
  const p = parsePacktIndex(packtIndexHtml({ dropChapter: 1 }));
  expect(p.sections[0]!.clips.map((c) => [c.title, c.video])).toEqual([
    ["Course Introduction", "videos/video1_1.mp4"],
    ["Docker & Friends", "videos/video1_2.mp4"],
  ]);
  expect(p.warnings.join()).toContain("section 1 has no chapter block");
});

test("not a Packt page is a clear error", () => {
  expect(() => parsePacktIndex("<html><h1>Hello</h1></html>")).toThrow(/no "Section N/);
});