import fs from 'fs';
import path from 'path';
import { ACCOUNTS_DIR, loadJSON } from './shared';
import type { ToolDefinition } from './types';

export const listAccounts: ToolDefinition = {
  name: 'list_accounts',
  description: '列出所有可用账号，返回每个账号的名称、描述、生图模型和视频模型',
  input_schema: {
    type: 'object',
    properties: {},
    required: [],
  },
  execute: async () => {
    if (!fs.existsSync(ACCOUNTS_DIR)) return '暂无账号';
    const dirs = fs.readdirSync(ACCOUNTS_DIR, { withFileTypes: true })
      .filter((d) => d.isDirectory() && !d.name.startsWith('_') && !d.name.startsWith('.'))
      .map((d) => {
        const configPath = path.join(ACCOUNTS_DIR, d.name, 'account.json');
        if (fs.existsSync(configPath)) {
          const cfg = loadJSON(configPath) as Record<string, string>;
          return `${d.name} - ${cfg.description || '无描述'} (生图:${cfg.imageModel} 视频:${cfg.videoModel} 画幅:${cfg.defaultFormat})`;
        }
        return d.name;
      });
    return dirs.join('\n') || '暂无账号';
  },
};