ts-comply/src/common/env/config.loader.ts

TypeTools is a Typescript library for providing extensible tooling runtime validations and type helpers.

import * as yaml from 'js-yaml';
import { DESTOR, DestorUrlEntry } from './env.destor';
import { Upstream } from '../../upstream';
import { UpstreamHttpDatastore } from '../../upstream/upstream-http-connector';

export interface TopologyConfig {
  destor: DestorUrlEntry[];
  primaryDatastore?: {
    profile?: string | 'test';
    domain?: string | 'local';
    type?: string | 'http';
    endpoint: string;
    credentials?: { authHeaders?: { [name:string]: string; }; };
  }
  datastores?: {
    [appProfile: string]: {
      [domain: string]: {
        type: string | 'http';
        endpoint: string;
        credentials?: { authHeaders?: { [name:string]: string; }; };
      }
    }
  }
}

export function loadTopologyConfig(content: string, onlyGetConfig = false) {
  let config: TopologyConfig;
  try {
    config = JSON.parse(content);
  } catch (e) {
    config = yaml.load(content) as TopologyConfig;
  }
  const effectuate = !onlyGetConfig;
  if (config.destor && config.destor.length) {
    if (effectuate) {
      DESTOR.LIST = config.destor;
    }
  }
  if (config.primaryDatastore) {
    if (!config.primaryDatastore.profile) {
      config.primaryDatastore.profile = 'test';
    }
    if (!config.primaryDatastore.domain) {
      config.primaryDatastore.domain = 'local';
    }
    if (!config.primaryDatastore.type) {
      config.primaryDatastore.type = 'http';
    }
    if (effectuate) {
      Upstream.constructMultiverse({
        [config.primaryDatastore.profile]: {
          [config.primaryDatastore.domain]: Upstream.add(new UpstreamHttpDatastore({
            path: config.primaryDatastore.domain,
            endpoint: {
              type: config.primaryDatastore.type,
              endpoint: config.primaryDatastore.endpoint,
              credentials: config.primaryDatastore.credentials ?
                            config.primaryDatastore.credentials
                            : { authHeaders: {} },
            },
          }))
        }
      });
    }
  }
  return config;
}