import type { ThoughtEvent } from "../events/types.js";

export const STREAM_TELEGRAM_HELP_VERSION = "stream-help-v3";
export const STREAM_TELEGRAM_FOCUS_HELP_VERSION = "stream-focus-help-v1";
export const STREAM_TELEGRAM_BOT_NAME = "The Stream";

export const STREAM_TELEGRAM_COMMANDS = [
  { command: "help", description: "Show commands, feedback, and links" },
  { command: "focus", description: "Propose a new focus from plain language" },
  { command: "correct", description: "Reply to a message with /correct new text" },
] as const;

export const STREAM_TELEGRAM_HELP_TEXT = `The Stream

Commands
/help — show this menu
/focus <description> — propose a private focus from plain language
/correct <replacement> — reply to one of my messages to replace that answer exactly

Feedback
👍 — mark a reply good
👎 — mark a reply bad

Private activity and suggestions
https://thought.stream/inspector/

Public docs
https://thought.stream/docs

The Telegram Menu button also contains /help, /focus, and /correct.`;

export const STREAM_TELEGRAM_FOCUS_HELP_TEXT = `Focus proposals

/focus <description>

Example
/focus AI news that changes how I understand model training and agent infrastructure

This creates a private inert proposal for review. It does not activate a listener, expand data access, start training, deliver focus output, or contact a third party.`;

export function isTelegramHelpCommand(event: ThoughtEvent): boolean {
  if (event.type !== "stream.thought.source.telegram.message") return false;
  const text = typeof event.payload.text === "string" ? event.payload.text.trim() : "";
  if (text === "/help") return true;
  const username = typeof event.payload.accountUsername === "string"
    ? event.payload.accountUsername.toLowerCase()
    : "";
  return username.length > 0 && text.toLowerCase() === `/help@${username}`;
}

export function isTelegramFocusHelpCommand(event: ThoughtEvent): boolean {
  if (event.type !== "stream.thought.source.telegram.message") return false;
  const text = typeof event.payload.text === "string" ? event.payload.text.trim() : "";
  if (text === "/focus") return true;
  const username = typeof event.payload.accountUsername === "string"
    ? event.payload.accountUsername.toLowerCase()
    : "";
  return username.length > 0 && text.toLowerCase() === `/focus@${username}`;
}


export function telegramFocusDescription(event: ThoughtEvent): string | undefined {
  if (event.type !== "stream.thought.source.telegram.message") return undefined;
  const text = typeof event.payload.text === "string" ? event.payload.text.trim() : "";
  const match = text.match(/^\/focus(?:@([A-Za-z0-9_]+))?\s+([\s\S]+)$/);
  if (!match) return undefined;
  const mention = match[1]?.toLowerCase();
  const username = typeof event.payload.accountUsername === "string"
    ? event.payload.accountUsername.toLowerCase()
    : "";
  if (mention && (!username || mention !== username)) return undefined;
  const description = match[2]?.trim();
  return description ? description : undefined;
}