// 二期第2段端到端:真实调脚本 agent,验「总时长 = 各镜相加」「单镜 4–15 秒」「组合回写」
const API = process.env.API || "http://127.0.0.1:8010";
const login = await (await fetch(`${API}/api/auth/login/`, {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({ username: "airshelf", password: "Restraint2026" })
})).json();
const auth = { Authorization: `Token ${login.token}`, "Content-Type": "application/json" };

const prods = (await (await fetch(`${API}/api/products/`, { headers: auth })).json()).results || [];
const project = await (await fetch(`${API}/api/projects/`, {
  method: "POST", headers: auth,
  body: JSON.stringify({ name: `二期第2段e2e-${Date.now() % 100000}`, product: prods[0].id })
})).json();

const CASES = [
  { total_duration: 40, presentation_format: "drama", video_structure: "pain" },
  { total_duration: 15, presentation_format: "oral", video_structure: "contrast" },
];

for (const params of CASES) {
  const res = await fetch(`${API}/api/projects/${project.id}/script-agent-stream/`, {
    method: "POST", headers: auth,
    body: JSON.stringify({ mode: "auto", aspect_ratio: "9:16", ...params })
  });
  let saved = null;
  const reader = res.body.getReader();
  const dec = new TextDecoder();
  let buf = "";
  while (true) {
    const { done, value } = await reader.read();
    if (done) break;
    buf += dec.decode(value, { stream: true });
    // SSE 帧只有 data: 行,事件类型在 JSON 的 type 字段里
    for (const chunk of buf.split("\n\n").slice(0, -1)) {
      const data = /^data:\s*([\s\S]+)$/m.exec(chunk)?.[1];
      if (!data) continue;
      let ev;
      try { ev = JSON.parse(data); } catch { continue; }
      if (ev.type === "draft") saved = ev.draft;
      if (ev.type === "error") console.error("  error:", data);
    }
    buf = buf.slice(buf.lastIndexOf("\n\n") + 2);
  }
  const draft = saved || {};
  const segs = draft.segments || [];
  const durs = segs.map((s) => s.duration);
  const sum = durs.reduce((a, b) => a + b, 0);
  console.log(
    `请求 ${params.total_duration}s ${params.presentation_format}×${params.video_structure}`,
    "→ 出稿", draft?.total_duration, "s ·", segs.length, "镜 ·", JSON.stringify(durs), "加总", sum,
    "|", draft?.presentation_format, draft?.video_structure,
    sum === params.total_duration && durs.every((d) => d >= 4 && d <= 15) ? "✅" : "❌"
  );
}

await fetch(`${API}/api/projects/${project.id}/`, { method: "DELETE", headers: auth });