import { Injector } from "./Injector";
import { Type, GenericClassDecorator, Constructor } from "./Internals";

/**
 * @returns {GenericClassDecorator<Type<any>>}
 * @constructor
 */
export function Singleton(config?: {
  interface?: Constructor<any>,
  initializationPriority?: number
}): GenericClassDecorator<Type<any>> {

  return (clazz: Type<any>) => {
    Injector['singletonDefinitions'].push({
      initializationPriority: config ?. initializationPriority,
      ctor: clazz
    })

    if(config && config.interface){
      Injector['tokenLookupTable'][config.interface.name] = clazz
    }
  }
}

export function Inject(token: Constructor<any>) {
  return function (receiver: Object, key: string) {
    Injector['injectionQueue'].push({ token, receiver, key })
  }
}