import tseslint7 from '@typescript-eslint/eslint-plugin-7';
import tseslint8 from '@typescript-eslint/eslint-plugin-8';

function createDiffPatch(v7, v8) {
  const v7Keys = new Set(Object.keys(v7));
  const v8Keys = new Set(Object.keys(v8));
  const output = ['{'];

  for (const key of Array.from(new Set([...v7Keys, ...v8Keys])).sort((a, b) =>
    trimSlash(a).localeCompare(trimSlash(b)),
  )) {
    const prefix = v7Keys.has(key) ? (v8Keys.has(key) ? ' ' : '-') : '+';

    output.push(`${prefix}  '${key}': '...',`);
  }

  output.push('}');

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

function trimSlash(text) {
  return text.startsWith('@typescript-eslint/')
    ? text.slice('@typescript-eslint/'.length)
    : text;
}

const configNames = [
  'recommended',
  'recommended-type-checked',
  'strict',
  'strict-type-checked',
  'stylistic',
  'stylistic-type-checked',
];

for (const configName of configNames) {
  console.log(configName);
  console.log(
    createDiffPatch(
      tseslint7.configs[configName].rules,
      tseslint8.configs[configName].rules,
    ),
  );
}