/**
 * SNS MCPlet
 * pool: media-pool | mcpletType: action | visibility: [app] | auth: passkey workflow
 */
import { MCPletServer } from '../../mcplet-server.js';

const MOCK_SERVICE_URL = process.env.MOCK_SERVICE_URL ?? 'http://localhost:5100';

const server = new MCPletServer('sns-mcplet');

server.registerTool({
  name: 'post_sns',
  description: 'SNSプラットフォームに投稿します。承認済みキャンペーン告知の拡散に使用します。',
  inputSchema: {
    type: 'object',
    properties: {
      platform: {
        type: 'string',
        enum: ['twitter', 'instagram', 'line'],
        description: '投稿するSNSプラットフォーム',
      },
      content: {
        type: 'string',
        description: '投稿内容',
      },
      scheduleAt: {
        type: 'string',
        description: '予約投稿日時 (ISO 8601形式、任意)',
      },
    },
    required: ['platform', 'content'],
  },
  mcpletType: 'action',
  pool: 'media-pool',
  visibility: ['app'],
  auth: {
    required: 'passkey',
    enforcement: 'workflow',
    promptMessage: 'このキャンペーンのSNS投稿を承認してください',
  },
  handler: async (args, authPayload) => {
    if (authPayload) {
      console.error(`[sns-mcplet] Auth verified (challenge: ${authPayload['challenge'] ?? 'n/a'})`);
    }

    const res = await fetch(`${MOCK_SERVICE_URL}/sns/post`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({
        platform: args['platform'],
        content: args['content'],
        scheduleAt: args['scheduleAt'],
      }),
    });
    if (!res.ok) throw new Error(`SNS service returned ${res.status}`);
    return res.json();
  },
});

await server.listen();