* Extended functionalities

* Added different UIs

meal-plan-frontend/src/utils/recipe-macros.util.ts

@@ -0,0 +1,65 @@
+import type { IngredientNutritionItem } from "@/types/ingredient-catalog.types";
+
+export interface MacroTotals {
+  calories: number;
+  protein: number;
+  fat: number;
+  carbs: number;
+}
+
+export interface MacroIngredientInput {
+  catalogItemId?: number | null;
+  amountGrams?: number | null;
+  unit?: string | null;
+  name?: string;
+}
+
+export function hasNonMacroUnit(unit?: string | null): boolean {
+  if (!unit?.trim()) return false;
+  const u = unit.trim().toLowerCase();
+  return u === "do smaku" || u === "optional" || u === "opcjonalnie" || u === "szczypta";
+}
+
+export function shouldIncludeIngredientInMacroSum(ing: MacroIngredientInput): boolean {
+  return Boolean(
+    ing.catalogItemId && ing.amountGrams != null && ing.amountGrams > 0 && !hasNonMacroUnit(ing.unit),
+  );
+}
+
+export function isUnlinkedMacroIngredient(ing: MacroIngredientInput): boolean {
+  if (!ing.name?.trim()) return false;
+  if (hasNonMacroUnit(ing.unit)) return false;
+  return Boolean(ing.amountGrams != null && ing.amountGrams > 0 && !ing.catalogItemId);
+}
+
+export function countUnlinkedMacroIngredients(ingredients: MacroIngredientInput[]): number {
+  return ingredients.filter(isUnlinkedMacroIngredient).length;
+}
+
+export function estimateMacrosFromCatalog(
+  ingredients: MacroIngredientInput[],
+  catalogItems: Pick<
+    IngredientNutritionItem,
+    "id" | "caloriesPer100G" | "proteinGPer100G" | "fatGPer100G" | "carbsGPer100G"
+  >[],
+): MacroTotals | null {
+  let calories = 0;
+  let protein = 0;
+  let fat = 0;
+  let carbs = 0;
+  let hasAny = false;
+
+  for (const ing of ingredients) {
+    if (!shouldIncludeIngredientInMacroSum(ing)) continue;
+    const cat = catalogItems.find((c) => c.id === ing.catalogItemId);
+    if (!cat) continue;
+    const scale = Number(ing.amountGrams) / 100;
+    calories += Math.round(cat.caloriesPer100G * scale);
+    protein += cat.proteinGPer100G * scale;
+    fat += cat.fatGPer100G * scale;
+    carbs += cat.carbsGPer100G * scale;
+    hasAny = true;
+  }
+
+  return hasAny ? { calories, protein, fat, carbs } : null;
+}