import { existsSync } from 'node:fs';
import { argv } from 'node:process';
import { diff } from './apidoc/diff';
import { pathDocsDiffIndexFile } from './apidoc/utils';

const [target, source] = argv.slice(2);

if (!source && !existsSync(pathDocsDiffIndexFile)) {
  throw new Error(
    `Unable to find local diff index file at: ${pathDocsDiffIndexFile}\n
    You can run \`pnpm run generate:api-docs\` to generate it.`
  );
}

diff(target, source)
  .then((delta) => {
    if (Object.keys(delta).length === 0) {
      console.log('No documentation changes detected');
      return;
    }

    console.log('Documentation changes detected:');
    for (const [module, methods] of Object.entries(delta)) {
      console.log(`- ${module}`);
      for (const method of methods) {
        console.log(`  - ${method}`);
      }
    }
  })
  .catch(console.error);