import { Injectable } from '@angular/core';
import { Subject } from 'rxjs';
@Injectable({
  providedIn: 'root'
})
export class CodebarreService {

  public isListening: boolean = false;
  private barcodeSubject = new Subject<string>();
  private fullBarcode = ''; // Stockage du code-barres complet
  private taille : number = 0;

  getBarcodeStream() {
    return this.barcodeSubject.asObservable();
  }
  
  nettoyer(input: string): string {
    const cleanedString = input.replace(/[\\']/g, '');
    return cleanedString;
  }

  countBackslashes(input: string): number {
    const occurrences = input.split("\\").length - 1;
    return occurrences;
  }


  startListening() {
    this.isListening = true;
    this.fullBarcode = '';
    document.addEventListener('keypress', (event: KeyboardEvent) => {
      const barcodeElement = event.key;
      this.fullBarcode += barcodeElement; // Ajouter l'élément au code-barres complet
      console.log(barcodeElement)
      console.log(this.fullBarcode)
      console.log(this.taille)
      const codefull = this.countBackslashes(this.fullBarcode);
      console.log(codefull); // 2
      if (codefull == 2) { // Supposons que "Enter" termine la numérisation
        // this.fullBarcode = ''; // Réinitialiser pour le prochain code-barres
        console.log(this.fullBarcode)
        const final = this.fullBarcode.split("\\")[1];
        console.log(final)
        const codebarre = this.nettoyer(final);
        this.barcodeSubject.next(codebarre); // Envoyer le code-barres complet
        console.log(codebarre)
        this.fullBarcode = '';

      }
    });
  }

  stopListening() {
    this.isListening = false;
    // Ajoutez ici la logique pour arrêter l'écoute du scanner de codes-barres
  }

  isCurrentlyListening() {
    return this.isListening;
  }
  
}