from pydantic import BaseModel, Field
from typing import Optional
from datetime import datetime


class RewardBase(BaseModel):
    title: str = Field(..., max_length=255)
    description: Optional[str] = None
    image_url: Optional[str] = None
    points_required: int = Field(default=1, ge=1)


class RewardCreate(RewardBase):
    pass


class RewardUpdate(BaseModel):
    title: Optional[str] = Field(None, max_length=255)
    description: Optional[str] = None
    image_url: Optional[str] = None
    points_required: Optional[int] = Field(None, ge=1)
    is_claimed: Optional[bool] = None


class RewardInDB(RewardBase):
    id: str
    user_id: str
    is_claimed: bool = False
    created_at: datetime
    updated_at: datetime
    
    class Config:
        from_attributes = True


class Reward(RewardInDB):
    pass