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

# User Schemas
class UserBase(BaseModel):
    name: str
    email: EmailStr
    rol: str = "operator"
    active: bool = True

class UserCreate(UserBase):
    password: str

class UserUpdate(BaseModel):
    name: Optional[str] = None
    email: Optional[EmailStr] = None
    password: Optional[str] = None
    rol: Optional[str] = None
    active: Optional[bool] = None

class UserResponse(UserBase):
    id: int
    creation_time: datetime
    update_time: datetime
    
    class Config:
        from_attributes = True

class UserWithModifications(UserResponse):
    modifications: List["ModificationSimple"] = []

# Audit Schemas
class ModificationSimple(BaseModel):
    id: int
    action: str
    updated_attribute: Optional[str] = None
    before_value: Optional[str] = None
    after_value: Optional[str] = None
    modification_date: datetime
    
    class Config:
        from_attributes = True

class ModificationResponse(ModificationSimple):
    user: Optional[UserResponse] = None
    updater: Optional[UserResponse] = None

# Auth Schemas
class Token(BaseModel):
    access_token: str
    token_type: str
    user: UserResponse

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

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

class RoleChangeRequest(BaseModel):
    new_role: str

# Resolver referencias circulares
UserWithModifications.model_rebuild()
ModificationResponse.model_rebuild()