export const GRAM_SLIDER_STEPS = [50, 100, 250, 500, 1000];

export function isGramUnit(packageUnit: string): boolean {
  const u = (packageUnit || '').toLowerCase().trim();
  return u === 'gramm' || u === 'g';
}

export function getProductStepSize(
  packageUnit: string,
  categoryName?: string | null,
  productName?: string | null
): { step: number; label: string } {
  const unit = (packageUnit || '').toLowerCase().trim();
  const name = (productName || '').toLowerCase().trim();
  const cat = (categoryName || '').toLowerCase().trim();

  if (unit === 'gramm' || unit === 'g') {
    const isSpice =
      cat.includes('gewürz') ||
      /paprika|hefe|gewürz|salz|pfeffer|curry|zimt|oregano|basilikum|thymian|knoblauch|chili|kümmel|rosmarin|muskat|kurkuma/i.test(
        name
      );

    if (isSpice) {
      return { step: 50, label: '50g' };
    }
    return { step: 250, label: '250g' };
  }

  if (unit === 'kilogramm' || unit === 'kg') {
    return { step: 1, label: '1kg' };
  }

  if (unit === 'liter' || unit === 'l') {
    return { step: 1, label: '1l' };
  }

  if (unit === 'milliliter' || unit === 'ml') {
    return { step: 250, label: '250ml' };
  }

  return { step: 1, label: '1' };
}