import { exec } from 'child_process';

export const invokeJsonSchemaDiff = (
  sourceSchemaFile: string,
  destinationSchemaFile: string,
  env?: NodeJS.ProcessEnv,
): Promise<string> => {
  return new Promise((resolve, reject) => {
    const processEnv = { ...process.env, ...env };
    exec(
      `./bin/json-schema-diff-local ${sourceSchemaFile} ${destinationSchemaFile}`,
      { env: processEnv },
      (error, stdout, stderr) => {
        const output = stdout.toString() + stderr.toString();

        if (error) {
          reject(new Error(`${error.message} ${output}`));
        } else {
          resolve(output);
        }
      },
    );
  });
};