#!/usr/bin/env bun
/**
 * Generate Tool Descriptions
 *
 * 将 descriptions 目录下的 .txt 文件转换为 TypeScript 模块
 * 用于 Bun 打包时内联工具描述
 */

import * as fs from 'fs';
import * as path from 'path';

const DESCRIPTIONS_DIR = path.join(__dirname, '../src/tools/descriptions');
const OUTPUT_FILE = path.join(__dirname, '../src/tools/descriptions.generated.ts');

interface DescriptionEntry {
  category: string;
  name: string;
  content: string;
}

function collectDescriptions(): DescriptionEntry[] {
  const entries: DescriptionEntry[] = [];

  const categories = fs.readdirSync(DESCRIPTIONS_DIR);
  for (const category of categories) {
    const categoryPath = path.join(DESCRIPTIONS_DIR, category);
    const stat = fs.statSync(categoryPath);

    if (stat.isDirectory()) {
      const files = fs.readdirSync(categoryPath);
      for (const file of files) {
        if (file.endsWith('.txt')) {
          const name = file.replace('.txt', '');
          const content = fs.readFileSync(path.join(categoryPath, file), 'utf-8').trim();
          entries.push({ category, name, content });
        }
      }
    } else if (category.endsWith('.txt')) {
      const name = category.replace('.txt', '');
      const content = fs.readFileSync(categoryPath, 'utf-8').trim();
      entries.push({ category: '', name, content });
    }
  }

  return entries;
}

function escapeString(str: string): string {
  return str
    .replace(/\\/g, '\\\\')
    .replace(/`/g, '\\`')
    .replace(/\$/g, '\\$');
}

function generateCode(entries: DescriptionEntry[]): string {
  const lines: string[] = [
    '// Auto-generated by scripts/generate-descriptions.ts',
    '// Do not edit manually',
    '',
    'export const TOOL_DESCRIPTIONS: Record<string, string> = {',
  ];

  for (const entry of entries) {
    const escapedContent = escapeString(entry.content);
    lines.push(`  '${entry.name}': \`${escapedContent}\`,`);
    lines.push('');
  }

  lines.push('};');
  lines.push('');

  return lines.join('\n');
}

function main() {
  console.log('Collecting tool descriptions...');
  const entries = collectDescriptions();
  console.log(`Found ${entries.length} descriptions`);

  console.log('Generating TypeScript code...');
  const code = generateCode(entries);

  console.log(`Writing to ${OUTPUT_FILE}...`);
  fs.writeFileSync(OUTPUT_FILE, code, 'utf-8');

  console.log('Done!');
}

main();