import { promises as fs } from 'node:fs';
import { camelCase } from 'lodash';

const files = (await fs.readdir('./src/rules'))
  .filter(file => file.endsWith('.ts'))
  .filter(file => file !== 'index.ts')
  .map(file => file.slice(0, -3));

const entryFile = /* js */ `
import type { Rule } from 'eslint';
import type { ESLintUtils } from '@typescript-eslint/utils';

${files.map(file => `import ${camelCase(file)} from './${file}';`).join('\n')}

export const rules: Record<
  string,
  Rule.RuleModule | ESLintUtils.RuleModule<string, unknown[]>
> = {
  ${files.map(file => `'${file}': ${camelCase(file)},`).join('\n  ')}
};
`.trim();

console.log('Building local rules...');
await fs.writeFile('./src/rules/index.ts', entryFile + '\n');