factory.js

export function Factory(getInstance?: boolean) {

    return function (target: any) {

        let construct: any = function (constructor: Function, args: any[]) {
            var model: any = function () {
                return constructor.apply(this, args);
            }
            Object.keys(constructor.prototype).forEach((key:string) => {
                Object.defineProperty(model.prototype, key, Object.getOwnPropertyDescriptor(constructor.prototype, key));
            });
            return new model();
        };

        let componentConstructor: any = function (...args: any[]) {
            var newInstance = construct(target, args);
            if (componentConstructor.$inject) {
                componentConstructor.$inject.forEach((el: string, index: number) => {
                    newInstance[el] = componentConstructor.injectors[index];
                });
            }
            return newInstance;
        };

        componentConstructor.$inject = target.$inject;
        componentConstructor.prototype = target.prototype;

        let factoryFunction: any = (...args: any[]) => {
            if (args.length) {
                componentConstructor.injectors = args;
            } else if (componentConstructor.$inject) {
                let $injector: any = angular.injector(['ng']);
                componentConstructor.injectors = [];
                componentConstructor.$inject.forEach((el: string) => {
                    componentConstructor.injectors.push($injector.get(el));
                });
            }
            if (getInstance) {
                return new componentConstructor();
            } else {
                return componentConstructor
            }
        };

        factoryFunction.$inject = target.$inject

        return factoryFunction;

    };
}

inject.js

'use strict';

export function Inject(target:any, propertyKey: string): void {
    if (!(target.constructor.$inject instanceof Array)) {
        target.constructor.$inject = [];
    };
    target.constructor.$inject.push(propertyKey);
};