import "../setup.ts";
import { assertEquals } from "@std/assert";
import { parsePlaylistPage } from "../../remote/youtube-playlist.ts";

function ytPage(data: unknown): string {
  return `<script>var ytInitialData = ${JSON.stringify(data)};</script>`;
}

const YT_DATA = {
  metadata: { playlistMetadataRenderer: { title: "My mix" } },
  contents: {
    list: [
      {
        lockupViewModel: {
          contentType: "LOCKUP_CONTENT_TYPE_VIDEO",
          contentId: "vid1",
          metadata: {
            lockupMetadataViewModel: { title: { content: "First" } },
          },
          contentImage: {
            overlays: [{ thumbnailBadgeViewModel: { text: "1:02:03" } }],
          },
        },
      },
      {
        lockupViewModel: {
          contentType: "LOCKUP_CONTENT_TYPE_PLAYLIST",
          contentId: "ignored",
        },
      },
      {
        playlistVideoRenderer: {
          videoId: "vid2",
          title: { runs: [{ text: "Second" }] },
          lengthSeconds: "235",
        },
      },
    ],
  },
};

Deno.test("parsePlaylistPage: current and legacy rows", () => {
  assertEquals(parsePlaylistPage(ytPage(YT_DATA), "PLx"), {
    listId: "PLx",
    title: "My mix",
    tracks: [
      { videoId: "vid1", title: "First", duration: 3723 },
      { videoId: "vid2", title: "Second", duration: 235 },
    ],
  });
  assertEquals(parsePlaylistPage("<html></html>", "PLx"), null);
  assertEquals(parsePlaylistPage(ytPage({ contents: {} }), "PLx"), null);
});