v0.1.27

Fix: Throughput API v1 available - Details posted to Irving. POWERBI_KEY was missing from the .ENV file, so was not live.
Add: Editor now supports editing a mix's resolved formula directly, with % and kg dual entry on ingredient rows
Fix: Mix Editor should bring through correct ingredients. New resolved formula (same logic we use in Mix Calculator).
Fix: Security headers on all API responses (hardening)
Add: New mix button available on the Mix Editor.
Add: New ingredient button available on the Ingredient Editor

backend/app/services/mix_calculator_service.py

@@ -93,6 +93,96 @@ def _mix_calculator_option_rank(product: Product) -> tuple[int, int, float, int]
     )
 
 
+def resolve_representative_product(db: Session, *, tenant_id: str, mix_id: int) -> Product | None:
+    """The single product the Mix Calculator surfaces for a given mix.
+
+    The calculator lists one representative product per (client, mix) and reads
+    its formula. The Mix Editor reuses this so it edits exactly what the
+    calculator shows. Preference order mirrors `build_mix_calculator_options`:
+    visible products that already have a product-specific formula, ranked by
+    `_mix_calculator_option_rank`; then any visible product; then any product.
+    """
+    products = db.scalars(
+        select(Product)
+        .where(Product.tenant_id == tenant_id, Product.mix_id == mix_id)
+        .options(
+            selectinload(Product.ingredients).selectinload(ProductIngredient.raw_material),
+            selectinload(Product.mix).selectinload(Mix.ingredients).selectinload(MixIngredient.raw_material),
+        )
+    ).all()
+    if not products:
+        return None
+    with_formula = [product for product in products if product.visible and product.ingredients]
+    pool = with_formula or [product for product in products if product.visible] or list(products)
+    return min(pool, key=_mix_calculator_option_rank)
+
+
+def resolve_editor_mix_formula(db: Session, *, tenant_id: str, mix: Mix) -> dict:
+    """Resolve a mix's formula the way the calculator does, for the editor.
+
+    Returns the resolved ingredient rows (with each row's share of the total as
+    `mix_percentage`), the total kg, and where the formula lives:
+    `source='product'` (a representative product's own formula) or `source='mix'`
+    (the shared mix master fallback). `product_id` names the product that owns the
+    formula when `source='product'`. The save path writes back to that same source.
+    """
+    product = resolve_representative_product(db, tenant_id=tenant_id, mix_id=mix.id)
+    if product is not None and product.ingredients:
+        rows, total_kg = _resolved_formula_rows(product)
+        # Carry each ingredient's note through so saving doesn't wipe it.
+        notes_by_raw_material = {
+            ingredient.raw_material_id: ingredient.notes for ingredient in product.ingredients
+        }
+        for row in rows:
+            row["notes"] = notes_by_raw_material.get(row["raw_material_id"])
+        source = "product"
+        product_id = product.id
+    else:
+        # No product-specific formula: the calculator reads the shared mix master,
+        # so the editor shows and edits that.
+        rows = [
+            {
+                "raw_material_id": ingredient.raw_material_id,
+                "raw_material_name": ingredient.raw_material.name
+                if ingredient.raw_material is not None
+                else f"Raw material {ingredient.raw_material_id}",
+                "quantity_kg": ingredient.quantity_kg,
+                "unit": ingredient.raw_material.unit_of_measure if ingredient.raw_material is not None else "kg",
+                "sort_order": index,
+                "notes": ingredient.notes,
+            }
+            for index, ingredient in enumerate(
+                sorted(mix.ingredients, key=lambda item: item.raw_material.name if item.raw_material else ""),
+                start=1,
+            )
+        ]
+        total_kg = round(sum(row["quantity_kg"] for row in rows), 4)
+        source = "mix"
+        product_id = product.id if product is not None else None
+
+    ingredients = [
+        {
+            "raw_material_id": row["raw_material_id"],
+            "raw_material_name": row["raw_material_name"],
+            "quantity_kg": round(row["quantity_kg"], 4),
+            "mix_percentage": round((row["quantity_kg"] / total_kg) * 100, 4) if total_kg > 0 else 0.0,
+            "unit": row["unit"],
+            "notes": row.get("notes"),
+        }
+        for row in rows
+    ]
+    return {
+        "id": mix.id,
+        "tenant_id": mix.tenant_id,
+        "client_name": mix.client_name,
+        "name": mix.name,
+        "source": source,
+        "product_id": product_id,
+        "ingredients": ingredients,
+        "total_kg": total_kg,
+    }
+
+
 def calculate_mix_calculator_preview(
     db: Session,
     *,