import { Tool } from '../types/index.js';

export const weatherTool: Tool = {
  name: 'get_weather',
  description: '获取指定城市的当前天气信息',
  parameters: {
    type: 'object',
    properties: {
      city: { type: 'string', description: '城市名称，如"北京"、"上海"' },
    },
    required: ['city'],
  },
  execute: async (args) => {
    // 模拟异步 API 调用
    const weathers = ['晴', '多云', '小雨', '阴天'];
    const picked = weathers[Math.floor(Math.random() * weathers.length)];
    return `城市：${args.city}，天气：${picked}，温度：${Math.floor(Math.random() * 15 + 15)}°C`;
  },
};