Introcuced a Free LLM for easier food input

backend/app/schemas.py

@@ -1,7 +1,7 @@
 from datetime import date as date_type
 from datetime import datetime
 
-from pydantic import BaseModel, ConfigDict
+from pydantic import BaseModel, ConfigDict, Field
 
 from app.models import MealType
 
@@ -66,6 +66,23 @@ class ProductSearchResult(ProductRead):
     is_dish: bool = False
 
 
+class NutritionEstimateRequest(BaseModel):
+    description: str = Field(min_length=2, max_length=300)
+
+
+class NutritionEstimateResponse(BaseModel):
+    name: str
+    calories: float = Field(ge=0, le=900)
+    carbs: float = Field(ge=0, le=100)
+    protein: float = Field(ge=0, le=100)
+    fat: float = Field(ge=0, le=100)
+    sugar: float = Field(default=0.0, ge=0, le=100)
+    fiber: float = Field(default=0.0, ge=0, le=100)
+    saturated_fat: float = Field(default=0.0, ge=0, le=100)
+    salt: float = Field(default=0.0, ge=0, le=100)
+    portion_g: float = Field(ge=1, le=5000)
+
+
 class LogCreate(BaseModel):
     barcode: str | None = None
     name: str | None = None