* Extended functionalities

* Added different UIs
2026-06-24 21:43:40 +02:00
parent 282f4864c4
commit f15bb7a916
348 changed files with 59057 additions and 498 deletions
--- a/MealPlan.Api/Services/Generators/TdeeCalculator.cs
+++ b/MealPlan.Api/Services/Generators/TdeeCalculator.cs
@@ -0,0 +1,59 @@
+namespace MealPlan.Api.Services.Generators;
+
+public static class TdeeCalculator
+{
+    public record MacroTargets(int Calories, decimal ProteinG, decimal FatG, decimal CarbsG, string Rationale);
+
+    public static MacroTargets Calculate(
+        decimal heightCm,
+        decimal weightKg,
+        int age,
+        string sex,
+        string activityLevel,
+        string goal)
+    {
+        var bmr = sex.ToLowerInvariant() switch
+        {
+            "female" => 10m * weightKg + 6.25m * heightCm - 5m * age - 161m,
+            _ => 10m * weightKg + 6.25m * heightCm - 5m * age + 5m,
+        };
+
+        var multiplier = activityLevel.ToLowerInvariant() switch
+        {
+            "sedentary" => 1.2m,
+            "light" => 1.375m,
+            "moderate" => 1.55m,
+            "active" => 1.725m,
+            "very_active" => 1.9m,
+            _ => 1.55m,
+        };
+
+        var tdee = bmr * multiplier;
+        var adjustment = goal.ToLowerInvariant() switch
+        {
+            "lose_weight" => -500,
+            "gain_muscle" => 300,
+            "recomp" => -200,
+            _ => 0,
+        };
+
+        var calories = Math.Max(1200, (int)Math.Round(tdee + adjustment));
+
+        var (proteinPct, fatPct, carbsPct) = goal.ToLowerInvariant() switch
+        {
+            "gain_muscle" => (0.30m, 0.25m, 0.45m),
+            "lose_weight" => (0.35m, 0.25m, 0.40m),
+            "recomp" => (0.32m, 0.28m, 0.40m),
+            _ => (0.25m, 0.30m, 0.45m),
+        };
+
+        var proteinG = Math.Round(calories * proteinPct / 4m, 1);
+        var fatG = Math.Round(calories * fatPct / 9m, 1);
+        var carbsG = Math.Round(calories * carbsPct / 4m, 1);
+
+        var rationale =
+            $"TDEE ≈ {(int)Math.Round(tdee)} kcal ({activityLevel}, {goal}). Target {calories} kcal after goal adjustment.";
+
+        return new MacroTargets(calories, proteinG, fatG, carbsG, rationale);
+    }
+}