initial commit

lib/services/base-explorer.service.ts

@@ -1,52 +0,0 @@
-import { InstanceWrapper } from '@nestjs/core/injector/instance-wrapper';
-import { Module } from '@nestjs/core/injector/module';
-import { flattenDeep, identity, isEmpty } from 'lodash';
-
-export class BaseExplorerService {
-  getModules(
-    modulesContainer: Map<string, Module>,
-    include: Function[],
-  ): Module[] {
-    if (!include || isEmpty(include)) {
-      return [...modulesContainer.values()];
-    }
-    return this.includeWhitelisted(modulesContainer, include);
-  }
-
-  includeWhitelisted(
-    modulesContainer: Map<string, Module>,
-    include: Function[],
-  ): Module[] {
-    const modules = [...modulesContainer.values()];
-    return modules.filter(({ metatype }) => include.includes(metatype));
-  }
-
-  flatMap<T>(
-    modules: Module[],
-    callback: (instance: InstanceWrapper, moduleRef: Module) => T | T[],
-  ): T[] {
-    const visitedModules = new Set<Module>();
-
-    const unwrap = (moduleRef: Module) => {
-      // protection from circular recursion
-      if (visitedModules.has(moduleRef)) {
-        return [];
-      } else {
-        visitedModules.add(moduleRef);
-      }
-
-      const providers = [...moduleRef.providers.values()];
-      const defined = providers.map((wrapper) => callback(wrapper, moduleRef));
-
-      const imported: (T | T[])[] = moduleRef.imports?.size
-        ? [...moduleRef.imports.values()].reduce((prev, cur) => {
-            return [...prev, ...unwrap(cur)];
-          }, [])
-        : [];
-
-      return [...defined, ...imported];
-    };
-
-    return flattenDeep(modules.map(unwrap)).filter(identity);
-  }
-}