import { ConfigurableModuleBuilder, Module } from '@nestjs/common';
import { type ServerMiddleware, ServiceRegistry } from './ServiceRegistry';

export interface ServiceServerModuleOptions {
	middlewares?: ServerMiddleware[];
}

const { ConfigurableModuleClass, MODULE_OPTIONS_TOKEN } = new ConfigurableModuleBuilder<ServiceServerModuleOptions>()
	.setExtras({ isGlobal: true }, (definition, extras) => ({ ...definition, global: extras.isGlobal }))
	.setClassMethodName('forRoot')
	.build();

export const SERVICE_SERVER_MODULE_OPTIONS = MODULE_OPTIONS_TOKEN;

@Module({
	imports: [],
	providers: [
		{
			provide: ServiceRegistry,
			useFactory: ({ middlewares }: ServiceServerModuleOptions = {}) => {
				const sr = new ServiceRegistry();
				sr.middlewares = middlewares ?? [];
				return sr;
			},
			inject: [{ token: MODULE_OPTIONS_TOKEN, optional: true }],
		},
	],
	exports: [ServiceRegistry],
})
export class ServiceServerModule extends ConfigurableModuleClass {}