import { parseAiJson } from "./parse-json";

export function safeParseAiJson(raw: string): unknown | null {
  try {
    return parseAiJson(raw);
  } catch {
    return null;
  }
}

export function normalizeTeacherPayload(data: unknown): unknown {
  if (!data || typeof data !== "object") return data;
  const o = data as Record<string, unknown>;

  const flashcards = Array.isArray(o.flashcards)
    ? o.flashcards
        .map((c) => {
          if (!c || typeof c !== "object") return null;
          const card = c as Record<string, unknown>;
          const front = String(card.front ?? "").trim();
          const back = String(card.back ?? "").trim();
          if (!front && !back) return null;
          return { front, back };
        })
        .filter(Boolean)
    : [];

  const quiz = Array.isArray(o.quiz)
    ? o.quiz
        .map((q) => {
          if (!q || typeof q !== "object") return null;
          const item = q as Record<string, unknown>;
          const options = Array.isArray(item.options)
            ? item.options.map((opt) => String(opt))
            : [];
          if (options.length === 0) return null;
          let answer = Number(item.answer ?? 0);
          if (!Number.isFinite(answer)) answer = 0;
          if (answer < 0 || answer >= options.length) answer = 0;
          return {
            question: String(item.question ?? "Question"),
            options,
            answer,
          };
        })
        .filter(Boolean)
    : [];

  return {
    title: o.title != null ? String(o.title) : undefined,
    introduction: o.introduction != null ? String(o.introduction) : undefined,
    objectives: Array.isArray(o.objectives)
      ? o.objectives.map(String).filter(Boolean)
      : undefined,
    readingSteps: Array.isArray(o.readingSteps)
      ? o.readingSteps.map(String).filter(Boolean)
      : undefined,
    reflectionPrompt:
      o.reflectionPrompt != null ? String(o.reflectionPrompt) : undefined,
    flashcards,
    quiz,
    assignment: String(o.assignment ?? o.homework ?? "").trim(),
  };
}

export function normalizeExplorationPayload(data: unknown): unknown {
  if (!data || typeof data !== "object") return data;
  const o = data as Record<string, unknown>;

  const items = Array.isArray(o.explorations)
    ? o.explorations
    : Array.isArray(o.quests)
      ? o.quests
      : [];

  return {
    explorations: items
      .map((item) => {
        if (!item || typeof item !== "object") return null;
        const e = item as Record<string, unknown>;
        const title = String(e.title ?? "").trim();
        if (!title) return null;
        const minutes = Number(e.minutes ?? e.duration ?? 20);
        return {
          title,
          hook: String(e.hook ?? e.description ?? e.reason ?? title).trim(),
          category: String(e.category ?? "general").trim(),
          minutes: Number.isFinite(minutes) && minutes > 0 ? minutes : 20,
        };
      })
      .filter(Boolean),
  };
}

export function debugAiLog(
  location: string,
  message: string,
  data: Record<string, unknown>
) {
  console.error(`[adventureos-ai] ${location}: ${message}`, JSON.stringify(data));
  // #region agent log
  fetch("http://127.0.0.1:7257/ingest/abfa22e4-3d86-4176-9679-7c59b1f0489f", {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      "X-Debug-Session-Id": "04e12c",
    },
    body: JSON.stringify({
      sessionId: "04e12c",
      location,
      message,
      data,
      timestamp: Date.now(),
    }),
  }).catch(() => {});
  // #endregion
}

export function isAiTimeoutError(error: unknown): boolean {
  if (!(error instanceof Error)) return false;
  if (error.name === "TimeoutError") return true;
  if (error.message.toLowerCase().includes("timeout")) return true;
  return (error as Error & { code?: number }).code === 23;
}