from pydantic import BaseModel
from typing import Optional, List, Any, Dict
from datetime import datetime

class ScanRequest(BaseModel):
    barcode: str

class IngredientAnalysis(BaseModel):
    name: str
    popular_name: Optional[str] = None
    explanation: str = ""
    classification: str = "warning"
    reason: str = ""
    is_allergen: Optional[bool] = False

class RecipeInfo(BaseModel):
    title: Optional[str] = None
    description: Optional[str] = None
    prep_time: Optional[str] = None
    calories: Optional[str] = None
    ingredients_list: Optional[List[str]] = None
    steps: Optional[List[str]] = None
    tip: Optional[str] = None

class SubstitutionItem(BaseModel):
    name: str
    brand: Optional[str] = None
    reason: str = ""
    estimated_score: Optional[int] = None

class AllergenAlert(BaseModel):
    ingredient: str
    allergy: str

class ScanResult(BaseModel):
    id: Optional[int] = None
    barcode: str
    product_name: Optional[str] = None
    brand: Optional[str] = None
    category: Optional[str] = None
    image_url: Optional[str] = None
    score: int
    summary: str
    positives: List[str]
    negatives: List[str]
    ingredients: List[Any]  # Allow flexible ingredient format
    nutrition: Optional[Dict[str, Any]] = None
    nutrition_verdict: Optional[str] = None
    recipe: Optional[Any] = None
    nutri_score: Optional[str] = None
    nova_group: Optional[int] = None
    substitutions: Optional[List[Any]] = None
    allergen_alerts: Optional[List[Any]] = None
    new_badges: Optional[List[str]] = None
    source: str = "open_food_facts"

class ScanHistoryItem(BaseModel):
    id: int
    barcode: str
    product_name: Optional[str] = None
    brand: Optional[str] = None
    score: int
    scanned_at: datetime