/**
 * 外部 API アクセス MCPlet
 * pool: info-pool | mcpletType: read | visibility: [model]
 */
import { MCPletServer } from '../../mcplet-server.js';

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

const server = new MCPletServer('api-access-mcplet');

server.registerTool({
  name: 'call_external_api',
  description: '外部APIを呼び出してデータを取得します。在庫情報や外部データソースの参照に使用します。',
  inputSchema: {
    type: 'object',
    properties: {
      api: {
        type: 'string',
        description: '呼び出すAPI識別子 (例: inventory, customer_stats)',
      },
      params: {
        type: 'object',
        description: 'APIクエリパラメータ',
        additionalProperties: true,
      },
    },
    required: ['api'],
  },
  mcpletType: 'read',
  pool: 'info-pool',
  visibility: ['model'],
  handler: async (args) => {
    const api = args['api'] as string;
    const params = (args['params'] as Record<string, string> | undefined) ?? {};

    if (api === 'inventory') {
      const item = params['item'] ?? '';
      const qs = item ? `?item=${encodeURIComponent(item)}` : '';
      const res = await fetch(`${MOCK_SERVICE_URL}/erp/inventory${qs}`);
      if (!res.ok) throw new Error(`Inventory API returned ${res.status}`);
      return res.json();
    }

    return { api, params, data: `Mock API response for api="${api}"` };
  },
});

await server.listen();