workflow-templates-broken-zap-2026-06-08/site/scripts/lib/index-reader.ts

import * as fs from 'node:fs';
import * as path from 'node:path';
import { LOCALE_INDEX_FILES } from './constants';
import { TEMPLATES_DIR } from './paths';
import { logger } from './logger';
import type { TemplateCategory, TemplateInfo } from './types';

export function loadTemplateIndex(locale: string): TemplateCategory[] | null {
  const filename = LOCALE_INDEX_FILES[locale];
  if (!filename) return null;

  const indexPath = path.join(TEMPLATES_DIR, filename);
  if (!fs.existsSync(indexPath)) {
    logger.warn(`  Warning: ${filename} not found, skipping locale ${locale}`);
    return null;
  }

  const content = fs.readFileSync(indexPath, 'utf-8');
  try {
    return JSON.parse(content);
  } catch (error) {
    throw new Error(`Failed to parse template index at ${indexPath}: ${error}`);
  }
}

export function flattenTemplates(categories: TemplateCategory[]): TemplateInfo[] {
  const templates: TemplateInfo[] = [];
  for (const category of categories) {
    templates.push(...category.templates);
  }
  return templates;
}

export function getTopByUsage(templates: TemplateInfo[], limit?: number): TemplateInfo[] {
  const sorted = [...templates].sort((a, b) => (b.usage || 0) - (a.usage || 0));
  return limit ? sorted.slice(0, limit) : sorted;
}