// The fixture's SITES_DIR (`<dest>/sites`), which the e2e server reads instead
// of the real transcripts/sites (playwright.config.ts). The suite WRITES notes
// there -- a report's notes.json is the one corpus file umtool writes -- so it
// must never be the real one.
//
// Called by make-fixture.mjs after the projects and the channels exist, so a
// report here can cite the fixture's channels and link its projects.
//
//   sites/priv        private, cited-only. Reports:
//     polemic-alpha   PUBLISHED: summary, two sections, cites sitechan/sv1
//                     (a clip window on disk: plays) and sitechan/sv2 (cues,
//                     no media: the fetch_clip line); video.mp4 + poster.jpg
//     polemic-beta    a DRAFT (not in site.json's reports)
//   sites/pub         public. Reports:
//     gamma           PUBLISHED, one section, no citations
//   <dest>/sitews/    the WORKSPACE (a direct child of REPORTS_ROOT, which the
//                     e2e server takes as <dest>): polemics/drafts/{alpha,beta}.json,
//                     polemics/make-site.py naming `priv`, polemics/out/alpha.{md,html},
//                     NOTES.md
//   <dest>/sitews/polemic-alpha/
//                     the article's report-video project: a manifest whose slug
//                     is polemic-alpha, two takes, one verdict
//   channels/sitechan/data/{sv1,sv2}   the cited records
import { spawnSync } from "node:child_process";
import { mkdirSync, writeFileSync } from "node:fs";
import path from "node:path";

const put = (file, value) => {
  mkdirSync(path.dirname(file), { recursive: true });
  writeFileSync(file, typeof value === "string" ? value : JSON.stringify(value, null, 2) + "\n");
};

const ff = (args) => {
  const r = spawnSync("ffmpeg", ["-nostdin", "-v", "error", "-y", ...args], { encoding: "utf8" });
  if (r.status !== 0) throw new Error(`ffmpeg failed: ${r.stderr || r.status}`);
};

const clip = (out, seconds, hz) => {
  mkdirSync(path.dirname(out), { recursive: true });
  ff([
    "-f", "lavfi", "-i", `testsrc=size=320x180:rate=15:duration=${seconds}`,
    "-f", "lavfi", "-i", `sine=frequency=${hz}:duration=${seconds}`,
    "-c:v", "libx264", "-pix_fmt", "yuv420p", "-c:a", "aac", "-shortest", "-movflags", "+faststart", out,
  ]);
};

export const SITE_CUES = {
  sv1: [
    [0, 3, "Opening line of the first source."],
    [3, 6, "The vote was rigged and everybody knew."],
    [6, 9, "Nobody checked it at the time."],
    [9, 12, "Later the story changed again."],
    [12, 15, "A fifth line for context."],
    [15, 18, "And a sixth to close."],
  ],
  sv2: [
    [0, 4, "The second source starts here."],
    [4, 8, "She said it on a different show."],
    [8, 12, "Then she said the opposite."],
  ],
};

const ALPHA_BODY_1 =
  "She said [the vote was rigged](cite:c1) in the first stream. Nobody checked the claim at the time, and the clip shows it.\n\nThe second paragraph repeats the claim for the record.";
const BETA_BODY =
  "The draft's only paragraph opens with a sentence that keeps going, clause after clause, long past the point where any slide could hold it, because nobody has trimmed it yet and the draft is still a draft. " +
  "Its second sentence is just as long, and it too wanders on through the reasons, the caveats and the asides that belong in the article rather than on a slide. A third follows.";
const ALPHA_BODY_2 ="Two years later [she said the opposite](cite:c2), on a different show.";

const siteJson = (siteId, title, extra) => ({
  siteId,
  siteTitle: title,
  groups: [{ id: "default", name: "All channels", selectedByDefault: true, order: 0, inline: true }],
  defaultGroupId: "default",
  channels: [{ slug: "sitechan", order: 0 }],
  ...extra,
});

/**
 * @param {{ dest: string, reports: string, channels: string }} at
 */
export function makeSitesFixture({ dest, channels }) {
  const sites = path.join(dest, "sites");
  mkdirSync(sites, { recursive: true });

  // ---- the cited records ----------------------------------------------------
  for (const [vid, rows] of Object.entries(SITE_CUES)) {
    put(path.join(channels, "sitechan", "data", vid, "transcript.cues.json"), {
      title: `Site source ${vid}`,
      uploadDate: "20240315",
      channel: "Site Channel",
      webpageUrl: `https://www.youtube.com/watch?v=${vid}`,
      duration: rows[rows.length - 1][1],
      cues: rows.map(([start, end, text]) => ({ start, end, text })),
    });
  }
  // sv1 has a clip window the editor fetched: [0, 12] holds the cited [3, 6].
  clip(path.join(channels, "sitechan", "data", "sv1", "clips", "0.00-12.00.mp4"), 12, 523);

  // ---- the sites ------------------------------------------------------------
  put(path.join(sites, "priv", "site.json"), siteJson("priv", "Private Fixture", { audience: "private", search: false, reports: ["polemic-alpha"] }));
  put(path.join(sites, "pub", "site.json"), siteJson("pub", "Public Fixture", { reports: ["gamma"] }));

  const alphaDir = path.join(sites, "priv", "reports", "polemic-alpha");
  put(path.join(alphaDir, "report.json"), {
    format: "archilyzer-report",
    version: 1,
    id: "polemic-alpha",
    kind: "sweep",
    series: "Polemics",
    title: "Alpha: the rigged vote",
    subtitle: "What she said, and when",
    summary: "She said one thing in 2020 and the opposite later.",
    published: "2026-10-01",
    updated: "2026-10-07",
    video: { src: "video.mp4", poster: "poster.jpg" },
    citations: {
      c1: { kind: "video", channel: "sitechan", id: "sv1", start: 3, end: 6, quote: "The vote was rigged and everybody knew.", speaker: "Site Channel", date: "2024-03-15" },
      c2: { kind: "video", channel: "sitechan", id: "sv2", start: 8, end: 12, quote: "Then she said the opposite.", speaker: "Site Channel", date: "2024-03-15" },
    },
    sections: [
      { id: "first", title: "The first claim", body: ALPHA_BODY_1 },
      { id: "later", title: "Later", body: ALPHA_BODY_2 },
    ],
  });
  clip(path.join(alphaDir, "video.mp4"), 4, 440);
  ff(["-f", "lavfi", "-i", "testsrc=size=320x180:rate=1:duration=1", "-frames:v", "1", path.join(alphaDir, "poster.jpg")]);

  put(path.join(sites, "priv", "reports", "polemic-beta", "report.json"), {
    format: "archilyzer-report",
    version: 1,
    id: "polemic-beta",
    kind: "sweep",
    title: "Beta: a draft",
    summary: "A draft nobody has published.",
    // Its one section has no slide points, and its first two sentences run
    // long for a slide: the source tab's slide lint says so.
    sections: [{ id: "only", title: "Only section", body: BETA_BODY }],
  });

  put(path.join(sites, "pub", "reports", "gamma", "report.json"), {
    format: "archilyzer-report",
    version: 1,
    id: "gamma",
    kind: "sweep",
    title: "Gamma on the public site",
    published: "2026-09-01",
    sections: [{ id: "g", title: "Gamma", body: "A public article with nothing cited." }],
  });

  // ---- the workspace they were written in ------------------------------------
  const ws = path.join(dest, "sitews");
  put(path.join(ws, "polemics", "drafts", "alpha.json"), { id: "polemic-alpha", title: "Alpha: the rigged vote", sections: [] });
  put(path.join(ws, "polemics", "drafts", "beta.json"), { id: "polemic-beta", title: "Beta: a draft", sections: [] });
  put(path.join(ws, "polemics", "make-site.py"), 'SITE = "priv"\nfor f in DRAFTS.glob("drafts/*.json"):\n    rid = f"polemic-{f.stem}"\n');
  put(path.join(ws, "polemics", "out", "alpha.md"), "# Alpha\n\nThe rendered draft of **alpha**.\n");
  put(path.join(ws, "polemics", "out", "alpha.html"), "<!doctype html><h1>Alpha html</h1><script>document.title='ran'</script>\n");
  put(path.join(ws, "NOTES.md"), "# Workspace notes\n\n- one\n- two\n");

  // ---- the article's video project -------------------------------------------
  const proj = path.join(ws, "polemic-alpha");
  put(path.join(proj, "video.manifest.json"), {
    schemaVersion: 1,
    slug: "polemic-alpha",
    title: "Alpha: the rigged vote",
    generatedBy: "polemics/video/make-videos.py",
    provenance: { channelSlug: "sitechan", siteOrigin: "https://priv.example" },
    timeline: [{ type: "clip", id: "a1", video: "sv1", channel: "sitechan", start: 3, end: 6, quote: "The vote was rigged" }],
  });
  for (const [id, order] of [["deck", 1], ["tight", 2]]) {
    put(path.join(proj, "takes", id, "take.json"), { id, group: "cut", order, label: id, kind: order === 1 ? "reference" : "similar", preview: "preview.mp4" });
  }
  put(path.join(proj, "takes", "verdicts.json"), { deck: { verdict: "like", note: "", at: "2026-10-07T00:00:00Z" } });

  return { sites, workspace: ws, project: proj };
}