import 'reflect-metadata';

import { actionConfigStore } from '../action/store';

export interface HandlerConfig {
  type: 'set-cookies-http-handler';
}

export function handler(cfg: HandlerConfig) {
  return (target: any, key: string, descriptor: PropertyDescriptor) => {
    const { type } = cfg;
    const ac = actionConfigStore.get(target);
    if (typeof target !== 'function') {
      throw new Error('Only use @handler with a static method.');
    }
    if (ac.handlers[type]) {
      throw new Error(`A ${type} handler has already been assigned as ${ac.handlers[type]}.`);
    }
    ac.handlers[type] = key;
  };
}