kuker-component.ts

import { kk } from './emitter';

/**
 * AoT のために export function での宣言が必須。
 */
/* tslint:disable:only-arrow-functions */
export function KukerComponent() {
  return cls => {
    const componentRole = cls.__proto__.name.includes('DecisionMaker')
      ? 'DecisionMaker'
      : 'Presenter';

    const proxyNgOnInit = cls.prototype.ngOnInit;
    cls.prototype.ngOnInit = function(...args) {
      // プロキシのため function使用
      if (componentRole === 'DecisionMaker') {
        kk.decisionMakerNgOnInit(cls.name);
      } else if (componentRole === 'Presenter') {
        kk.presenterNgOnInit(cls.name);
      }

      if (typeof proxyNgOnInit === 'function') {
        proxyNgOnInit.apply(this, args);
      }
    };

    const proxyNgOnDestroy = cls.prototype.ngOnDestroy;
    cls.prototype.ngOnDestroy = function(...args) {
      // プロキシのため function使用
      if (componentRole === 'DecisionMaker') {
        kk.decisionMakerNgOnDestroy(cls.name);
      } else if (componentRole === 'Presenter') {
        kk.presenterNgOnDestroy(cls.name);
      }

      if (typeof proxyNgOnDestroy === 'function') {
        proxyNgOnDestroy.apply(this, args);
      }
    };

    Object.keys(cls.prototype).forEach(methodName => {
      if (!methodName.match(/^on/)) {
        return;
      }
      const proxy = cls.prototype[methodName];
      cls.prototype[methodName] = function(...args) {
        // プロキシのため function使用
        if (componentRole === 'DecisionMaker') {
          kk.decisionMakerHandling(cls.name, methodName);
        } else if (componentRole === 'Presenter') {
          kk.presenterHandling(cls.name, methodName);
        }

        proxy.apply(this, args);
      };
    });

    return cls;
  };
}
/* tslint:enable:only-arrow-functions */