import { MessageObjectInfo } from '../MessageObjectInfo';

function isBinary(obj: object): boolean {
  if (typeof window !== 'undefined' && obj instanceof File) {
    return true;
  }
  return obj instanceof Blob || obj instanceof ArrayBuffer;
}

function join(left: string, right: string | number): string {
  const sep = left.length === 0 ? '' : '.';
  return `${left}${sep}${right}`;
}

export function getMessageObjectInfo(obj: any, currentPath: Array<string | number> = [], accum = new MessageObjectInfo()): MessageObjectInfo {

  if (Array.isArray(obj)) {
    obj.forEach((value, index) => getMessageObjectInfo(value, [...currentPath, index], accum));
  } else if (isBinary(obj)) {
    const size = obj.size || obj.byteLength || 0;
    accum.binaryData.push({
      path: currentPath,
      data: obj,
      size,
    });
    // eslint-disable-next-line no-param-reassign
    accum.binarySize += size;
  } else if (typeof obj === 'object' && obj !== null) {
    Object.entries(obj).forEach(([key, value]) => getMessageObjectInfo(value, [...currentPath, key], accum));
  }

  return accum;
}