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

class User(BaseModel):
    id: str
    email: str
    name: str
    picture: Optional[str] = None

class Stream(BaseModel):
    id: str
    user_id: str
    title: str
    description: Optional[str] = None
    is_live: bool
    viewer_count: int = 0
    created_at: datetime
    thumbnail: Optional[str] = None

class StreamCreate(BaseModel):
    title: str
    description: Optional[str] = None

class AuthCallback(BaseModel):
    code: str

class ChatMessage(BaseModel):
    user_id: str
    username: str
    message: str
    timestamp: datetime