1  import { Container, interfaces } from 'inversify';
 2  import { IApplication, IApplicationSymbol } from './IApplication';
 3  import { IModule } from './Modules/IModule';
 4  import { IApplicationRegistration } from './IApplicationRegistration';
 5  
 6  export class Application implements IApplication, IApplicationRegistration {
 7  	public constructor(container?: Container) {
 8  		if (container) {
 9  			this.container = container;
10  		}
11  		this.container.bind(IApplicationSymbol).toConstantValue(this);
12  	}
13  
14  	public registerConstant<T>(service: T, identifier: symbol) {
15  		if (this.container.isCurrentBound(identifier)) {
16  			this.container.unbind(identifier);
17  		}
18  		this.container.bind<T>(identifier).toConstantValue(service);
19  	}
20  
21  	public registerConstantMultiple<T>(service: T, identifier: symbol) {
22  		this.container.bind<T>(identifier).toConstantValue(service);
23  	}
24  
25  	public register<T>(service: interfaces.Newable<T>, identifier: symbol) {
26  		if (this.container.isCurrentBound(identifier)) {
27  			this.container.unbind(identifier);
28  		}
29  		this.container.bind<T>(identifier).to(service);
30  	}
31  
32  	public registerMultiple<T>(service: interfaces.Newable<T>, identifier: symbol) {
33  		this.container.bind<T>(identifier).to(service);
34  	}
35  
36  	public use(module: IModule): void {
37  		module(this);
38  	}
39  
40  	public getService<T>(identifier: symbol): T | undefined {
41  		return this.container.get<T>(identifier);
42  	}
43  
44  	public createChildApplication(): Application {
45  		return new Application(this.container.createChild());
46  	}
47  
48  	/**
49  	 * The IOC {@link Container} of the {@link IApplication}.
50  	 */
51  	private readonly container = new Container({
52  		defaultScope: 'Singleton',
53  	});
54  }