Cache decorator

import { InternalServerErrorException } from '@nestjs/common';

export const Cacheable = (options: {cachePrefix: string, platform: string, ttl?: undefined}) => {
 return (target: any, methodName: string, descriptor: TypedPropertyDescriptor<any>): void => {
   const className = target.constructor.name;
   const original = descriptor.value;
   const { cachePrefix, ttl } = options;

   descriptor.value = new Proxy(original, {
     apply: async (target: TargetInterFace<any>, service: ServiceInterface<any>, args: ArgsInterFace) => {
       const { cacheManager, containerService } = service;
       const platform = containerService.get('platformSlug')
       if(!platform) {
         return original
       }

       if (!cacheManager) {
         const message = `Target Class "${className}" should inject CACHE_MANAGER`

         throw new InternalServerErrorException(message);
       }

       const cacheKey = `${cachePrefix}_${platform}`
       const value = await cacheManager.get(cacheKey);
       if (value) {
         return value;
       }

       const result = await target.apply(service, args);
       await cacheManager.set(cacheKey, result, ttl);

       return result;
     },
   });
 };
}