# /opt/docker/dev/service_finder/backend/app/schemas/asset_cost.py
from pydantic import BaseModel, ConfigDict, Field
from typing import Optional, Dict, Any
from datetime import datetime
from decimal import Decimal
from uuid import UUID

class AssetCostBase(BaseModel):
    """Base schema — matches the AssetCost SQLAlchemy model fields."""
    amount_net: Decimal
    currency: str = "HUF"
    date: datetime = Field(default_factory=datetime.now)
    invoice_number: Optional[str] = None
    data: Dict[str, Any] = Field(default_factory=dict)  # nyugta adatai, GPS koordináták
    category_id: int  # FK a CostCategory táblához
    mileage_at_cost: Optional[int] = None  # Stored inside data JSONB
    description: Optional[str] = None      # Stored inside data JSONB

class AssetCostCreate(AssetCostBase):
    asset_id: UUID
    organization_id: Optional[int] = None  # Auto-resolved from asset if not provided

class AssetCostResponse(AssetCostBase):
    """Response schema — matches DB columns from vehicle.asset_costs."""
    id: UUID
    asset_id: UUID
    organization_id: int
    
    # Derived / enriched fields (not in DB model directly)
    category_name: Optional[str] = None  # Resolved from CostCategory relationship
    category_code: Optional[str] = None  # Resolved from CostCategory relationship
    description: Optional[str] = None    # Extracted from data['description']
    mileage_at_cost: Optional[int] = None  # Extracted from data['mileage_at_cost']
    
    model_config = ConfigDict(from_attributes=True)