import type { Message } from "@grammyjs/types";
import { MediaFetchError } from "openclaw/plugin-sdk/media-runtime";

export const APPROVE_CALLBACK_DATA_RE =
  /^\/approve(?:@[^\s]+)?\s+[A-Za-z0-9][A-Za-z0-9._:-]*\s+(allow-once|allow-always|deny)\b/i;

export function isMediaSizeLimitError(err: unknown): boolean {
  const errMsg = String(err);
  return errMsg.includes("exceeds") && errMsg.includes("MB limit");
}

export function isRecoverableMediaGroupError(err: unknown): boolean {
  return err instanceof MediaFetchError || isMediaSizeLimitError(err);
}

export function hasInboundMedia(msg: Message): boolean {
  return (
    Boolean(msg.media_group_id) ||
    (Array.isArray(msg.photo) && msg.photo.length > 0) ||
    Boolean(msg.video ?? msg.video_note ?? msg.document ?? msg.audio ?? msg.voice ?? msg.sticker)
  );
}

export function hasReplyTargetMedia(msg: Message): boolean {
  const externalReply = (msg as Message & { external_reply?: Message }).external_reply;
  const replyTarget = msg.reply_to_message ?? externalReply;
  return Boolean(replyTarget && hasInboundMedia(replyTarget));
}

export function resolveInboundMediaFileId(msg: Message): string | undefined {
  return (
    msg.sticker?.file_id ??
    msg.photo?.[msg.photo.length - 1]?.file_id ??
    msg.video?.file_id ??
    msg.video_note?.file_id ??
    msg.document?.file_id ??
    msg.audio?.file_id ??
    msg.voice?.file_id
  );
}