from datetime import datetime
from pydantic import BaseModel


class StockMoveRequest(BaseModel):
    product_id: str
    type: str  # IN, OUT, ADJUST
    quantity: int
    reason: str | None = None


class StockMovementResponse(BaseModel):
    id: str
    product_id: str
    type: str
    quantity: int
    reason: str | None
    created_at: datetime

    class Config:
        from_attributes = True


class StockSummary(BaseModel):
    product_id: str
    product_name: str
    current_stock: int
    min_stock: int
    is_low_stock: bool