Bug Fixes Frontend

// ✅ Solution - Propriété normale
defaultWeights: any[] = [];

private initializeDefaultWeights(): void {
  this.defaultWeights = [
    { criterion_name: 'ethical_score', weight: 0.4, label: 'PROJECTS.CRITERIA.ETHICAL_SCORE', icon: 'security' },
    { criterion_name: 'technical_score', weight: 0.4, label: 'PROJECTS.CRITERIA.TECHNICAL_SCORE', icon: 'engineering' },
    // ...
  ];
}

<!-- ✅ Utilisation de valueChange au lieu de change -->
<input matSliderThumb
       [value]="weight.weight"
       (valueChange)="onWeightChange(i, $event)"
       style="width: 100%;" />

onWeightChange(index: number, value: any): void {
  // Validation de l'index
  if (index < 0 || index >= this.defaultWeights.length) {
    console.warn('Index de poids invalide:', index);
    return;
  }

  // Conversion et validation de la valeur
  let numericWeight: number;
  if (typeof value === 'string') {
    numericWeight = parseFloat(value);
  } else if (typeof value === 'number') {
    numericWeight = value;
  } else {
    console.warn('Valeur de poids invalide:', value);
    return;
  }

  // Validation de la plage
  if (isNaN(numericWeight) || numericWeight < 0 || numericWeight > 1) {
    console.warn('Valeur de poids hors plage:', numericWeight);
    return;
  }

  // Éviter les modifications inutiles
  if (Math.abs(this.defaultWeights[index].weight - numericWeight) < 0.001) {
    return;
  }

  // Mettre à jour le poids
  this.defaultWeights[index].weight = numericWeight;

  // Recalculer les poids actifs
  this.currentWeights = this.defaultWeights
    .filter(w => w.weight > 0)
    .map(w => ({
      criterion_name: w.criterion_name,
      weight: w.weight
    }));

  // Mettre à jour le preview avec un délai pour éviter les appels en cascade
  setTimeout(() => this.updatePreview(), 100);
}