fix: Use standard units for nutrients

Sources/ViewControllers/Products/Add/EditNutritiveValueView.swift

@@ -16,7 +16,7 @@ enum NutritiveUnits {
     case alcohol
     case none
 
-    func unitsValues() -> [String] {
+    public var unitsValues: [String] {
         switch self {
         case .kcal:
             return [
@@ -105,7 +105,7 @@ class EditNutritiveValueView: UIView {
         singleUnitLabel.isHidden = true
         unitButton.isHidden = true
 
-        let values = displayedUnit.unitsValues()
+        let values = displayedUnit.unitsValues
         selectedUnit = selectedValue ?? values.first
 
         if values.count == 1 {
@@ -137,7 +137,7 @@ class EditNutritiveValueView: UIView {
     }
 
     @IBAction func unitButtonTapped(_ sender: Any) {
-        let values = displayedUnit.unitsValues()
+        let values = displayedUnit.unitsValues
 
         if values.count < 2 {
             // button should not be visible anyway ?

Sources/ViewControllers/Products/Add/ProductAddViewController.swift

@@ -593,6 +593,20 @@ class ProductAddViewController: TakePictureViewController {
         }
     }
 
+    private func unit(for nutriment: String) -> NutritiveUnits {
+        switch nutriment {
+        case OFFJson.EnergyKey:
+            return .kJoule
+        case OFFJson.EnergyKcalKey:
+            return .kcal
+        case OFFJson.AlcoholKey:
+            return .alcohol
+        case OFFJson.PhKey:
+            return .none
+        default: return .units
+        }
+    }
+
     private func configureLanguageField() {
         let languages = dataManager.getLanguages()
 
@@ -723,7 +737,10 @@ class ProductAddViewController: TakePictureViewController {
                     } else {
                         view.inputTextField.text = nil
                     }
-                    view.selectedUnit = nutriment.unit
+                    // do not use the nutriment values as provided by the json,
+                    // these are the original input values
+                    // Use the standard values coresponding to the Nutriment.
+                    view.selectedUnit = unit(for: nutriment.nameKey).unitsValues.first
                 }
             }
         }