import * as admin from 'firebase-admin'
import { credential } from 'firebase-admin'
import { FirebaseApp, initializeApp } from 'firebase/app'

export class Firebender {
  private firebaseAdminApp: admin.app.App
  private firebaseClientApp: FirebaseApp

  get firebaseAdmin(): admin.app.App {
    return this.firebaseAdminApp || this.buildFirebaseAdmin()
  }

  get firebaseClient(): FirebaseApp {
    return this.firebaseClientApp || this.buildFirebaseClient()
  }

  private buildFirebaseAdmin(): admin.app.App {
    return (this.firebaseAdminApp =
      admin.apps[0] ||
      admin.initializeApp(
        {
          credential: credential.cert({
            projectId: globalThis.secret.firebase_service_account.project_id,
            clientEmail: globalThis.secret.firebase_service_account.client_email,
            privateKey: globalThis.secret.firebase_service_account.private_key,
          }),
          storageBucket: globalThis.secret.firebase_storage_bucket,
        },
        'firebase-admin',
      ))
  }

  private buildFirebaseClient(): FirebaseApp {
    return (this.firebaseClientApp = initializeApp(
      {
        apiKey: globalThis.secret.firebase_config.api_key,
        authDomain: globalThis.secret.firebase_config.auth_domain,
        projectId: globalThis.secret.firebase_config.project_id,
        appId: globalThis.secret.firebase_config.app_id,
        measurementId: globalThis.secret.firebase_config.measurement_id,
      },
      'firebase-client',
    ))
  }
}