import path from 'path';
import { remove } from 'fs-extra';
import { CloudFrontOrigin } from 'aws-lambda';
import { OriginRequestEvent } from '../types';

export const cleanupDir = (dir: string): Promise<void> => {
  return remove(dir);
};

export const removeNewLineChars = (text: string): string => text.replace(/(\r\n|\n|\r)/gm, '');

export const getNextBinary = (): string =>
  path.join(require.resolve('next'), '../../../../.bin/next');

type CloudFrontEventOptions = {
  uri: string;
  host: string;
  s3DomainName?: string;
  s3Region?: string;
};

export const createCloudFrontEvent = ({
  uri,
  host,
  s3DomainName,
  s3Region,
}: CloudFrontEventOptions): OriginRequestEvent => ({
  Records: [
    {
      cf: {
        request: {
          method: 'GET',
          uri,
          clientIp: '1.2.3.4',
          querystring: '',
          headers: {
            host: [
              {
                key: 'host',
                value: host,
              },
            ],
          },
          origin: {
            s3: {
              path: '',
              region: s3Region || 'us-east-1',
              authMethod: 'origin-access-identity',
              domainName: s3DomainName || 'my-bucket.s3.amazonaws.com',
            },
          },
        },
      },
    },
  ],
});