import { html, stubNetwork } from "../../helpers.ts";
import { assert, assertEquals, assertFalse } from "@std/assert";
import { fetchRichContent } from "../../../services/rich-content-service.ts";
import { youtubeProvider } from "../../../remote/providers/youtube.ts";

Deno.test("youtube provider: video with start time and playlist", async () => {
  using net = stubNetwork((url) =>
    url.pathname === "/oembed"
      ? Response.json({ title: "Never Gonna", thumbnail_url: "ignored" })
      : new Response(null, { status: 404 })
  );
  const content = await fetchRichContent(
    "https://www.youtube.com/watch?v=dQw4w9WgXcQ&list=PL123&t=1m30s",
  );
  assertEquals(content?.type, "youtube");
  assertEquals(content?.videoId, "dQw4w9WgXcQ");
  assertEquals(content?.title, "Never Gonna");
  assertEquals(
    content?.thumbnailUrl,
    "https://img.youtube.com/vi/dQw4w9WgXcQ/hqdefault.jpg",
  );
  assertEquals(
    content?.embedUrl,
    "https://www.youtube.com/embed/dQw4w9WgXcQ?rel=0&list=PL123&start=90",
  );
  assertEquals(net.calls[0].hostname, "www.youtube.com");
});

Deno.test("youtube provider: youtu.be, shorts, playlists and channels", async () => {
  using _ = stubNetwork((url) =>
    url.pathname === "/oembed"
      ? Response.json({
        title: "T",
        thumbnail_url: "https://i.ytimg.com/x.jpg",
      })
      : html(`<meta property="og:title" content="Channel">
              <meta property="og:image" content="https://yt3/ch.jpg">`)
  );
  assertEquals(
    (await fetchRichContent("https://youtu.be/abc123?t=42"))?.embedUrl,
    "https://www.youtube.com/embed/abc123?rel=0&start=42",
  );
  assertEquals(
    (await fetchRichContent("https://youtube.com/shorts/xyz"))?.videoId,
    "xyz",
  );
  const list = await fetchRichContent(
    "https://www.youtube.com/playlist?list=PLabc",
  );
  assertEquals(
    list?.embedUrl,
    "https://www.youtube.com/embed/videoseries?list=PLabc&rel=0",
  );
  assertEquals(list?.thumbnailUrl, "https://i.ytimg.com/x.jpg");
  const channel = await fetchRichContent("https://www.youtube.com/@someone");
  assertEquals(channel?.title, "Channel");
  assertEquals(channel?.embedUrl, undefined);
});

Deno.test("youtube provider: every YouTube host, and no other site's list", () => {
  for (
    const url of [
      "https://m.youtube.com/watch?v=dQw4w9WgXcQ",
      "https://music.youtube.com/watch?v=dQw4w9WgXcQ",
      "https://www.youtube-nocookie.com/embed/dQw4w9WgXcQ",
      "https://www.youtube.com/live/dQw4w9WgXcQ",
      "https://m.youtube.com/@someone",
    ]
  ) {
    assert(youtubeProvider.matches(url), url);
  }
  assertFalse(youtubeProvider.matches("https://example.com/page?list=PL123"));
});