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

class UserBase(BaseModel):
    email: EmailStr
    username: str = Field(..., min_length=3, max_length=50)
    full_name: str = Field(..., min_length=1, max_length=100)

class UserCreate(UserBase):
    password: str = Field(..., min_length=6)

class UserUpdate(BaseModel):
    full_name: Optional[str] = Field(None, min_length=1, max_length=100)
    bio: Optional[str] = Field(None, max_length=500)
    avatar_url: Optional[str] = None

class UserResponse(UserBase):
    id: int
    is_active: bool
    is_admin: bool
    avatar_url: Optional[str]
    bio: Optional[str]
    attendance_rate: float
    created_at: datetime
    
    class Config:
        from_attributes = True

class UserLogin(BaseModel):
    email: EmailStr
    password: str

class Token(BaseModel):
    access_token: str
    token_type: str = "bearer"
    user: UserResponse

class TokenData(BaseModel):
    user_id: Optional[int] = None
    email: Optional[str] = None