cothema / ionic-universal-firebase-login

import {

  ModuleWithProviders,

  NgModule,

  Optional,

  SkipSelf,

} from "@angular/core";

import { UniFirebaseLoginConfig } from "../config/uni-firebase-login-config";

import { UniFirebaseLoginConfigProvider } from "../config/uni-firebase-login-config-provider";

import { UserModel } from "../model/user-model";

import { IUniFirebaseLoginConfig } from "../services/i-uni-firebase-login-config";

@NgModule({

  declarations: [],

  exports: [],

  imports: [],

  providers: [],

})

export class UniFirebaseLoginModule<User extends UserModel = UserModel> {

  public static forRoot(

    config: Partial<IUniFirebaseLoginConfig> = {},

  ): ModuleWithProviders<UniFirebaseLoginModule> {

    return {

      ngModule: UniFirebaseLoginModule,

      providers: [{ provide: UniFirebaseLoginConfig, useValue: config }],

    };

  }

  public static forChild(): ModuleWithProviders<UniFirebaseLoginModule> {

    return {

      ngModule: UniFirebaseLoginModule,

      providers: [{ provide: UniFirebaseLoginConfigProvider }],

    };

  }

  public constructor(

    @Optional() @SkipSelf() parentModule: UniFirebaseLoginModule,

  ) {

    if (parentModule) {

      throw new Error(

        "UniFirebaseLoginModule is already loaded. Import it in the AppModule only",

      );

    }

  }

}