import fs from 'fs';
import path from 'path';

function delay(ms: number) {
  return new Promise((resolve) => {
    setTimeout(resolve, ms);
  });
}

async function readSchema(root: string, count = 0): Promise<string> {
  if (count > 5) {
    throw new Error('Cannot read schema');
  }
  await delay(2000);
  try {
    const key = path.resolve(root, '../graphql/root.graphql');
    return fs.readFileSync(key).toString();
  } catch (error) {
    return readSchema(root, count + 1);
  }
}

export async function getRootSchema() {
  const root = process.cwd();
  const schema = await readSchema(root);
  const rootSchemaPath = path.resolve(root, 'src/expo-schema/types/root.graphql');
  fs.writeFileSync(rootSchemaPath, schema);
}