// Функции расчета для калькулятора свечей

export function calculateCandleStep(
  stepId: string,
  values: Record<string, number>
): number {
  const {
    waxWeight = 0,
    waxPrice = 0,
    wickCount = 0,
    wickPrice = 0,
    fragrancePrice = 0,
    fragranceWeight = 0,
    dyePrice = 0,
    dyeWeight = 0,
  } = values;

  switch (stepId) {
    case 'wax':
      if (waxWeight <= 0 || waxPrice <= 0) return 0;
      return (waxWeight / 1000) * waxPrice;
    
    case 'wick':
      if (wickCount <= 0 || wickPrice <= 0) return 0;
      return wickCount * wickPrice;
    
    case 'fragrance':
      if (waxWeight <= 0 || fragranceWeight <= 0 || fragrancePrice <= 0) return 0;
      // 10% отдушки от веса воска
      return ((waxWeight * 0.10) / fragranceWeight) * fragrancePrice;
    
    case 'dye':
      if (waxWeight <= 0 || dyeWeight <= 0 || dyePrice <= 0) return 0;
      // 1% красителя от веса воска
      return ((waxWeight * 0.01) / dyeWeight) * dyePrice;
    
    default:
      return 0;
  }
}

export function calculateCandleSubtotal(
  subtotalId: string,
  values: Record<string, number>,
  steps: Record<string, number>
): number {
  switch (subtotalId) {
    case 'operational':
      const subtotal = 
        (steps.wax || 0) + 
        (steps.wick || 0) + 
        (steps.fragrance || 0) + 
        (steps.dye || 0);
      return subtotal * 0.05;
    
    case 'total':
      return (
        (steps.wax || 0) +
        (steps.wick || 0) +
        (steps.fragrance || 0) +
        (steps.dye || 0) +
        (steps.operational || 0)
      );
    
    default:
      return 0;
  }
}

export function round(val: number): number {
  return Math.round(val * 10) / 10;
}