/**
 * Slack channel adapter (v2) — uses Chat SDK bridge.
 * Self-registers on import.
 */
import { createSlackAdapter } from '@chat-adapter/slack';

import { readEnvFile } from '../env.js';
import { createChatSdkBridge } from './chat-sdk-bridge.js';
import { registerChannelAdapter } from './channel-registry.js';

registerChannelAdapter('slack', {
  factory: () => {
    const env = readEnvFile(['SLACK_BOT_TOKEN', 'SLACK_SIGNING_SECRET']);
    if (!env.SLACK_BOT_TOKEN) return null;
    const slackAdapter = createSlackAdapter({
      botToken: env.SLACK_BOT_TOKEN,
      signingSecret: env.SLACK_SIGNING_SECRET,
    });
    return createChatSdkBridge({ adapter: slackAdapter, concurrency: 'concurrent', supportsThreads: true });
  },
});