"""
DTOs para módulo de autenticación
"""
from pydantic import BaseModel, EmailStr, Field
from typing import Optional


class LoginRequestDTO(BaseModel):
    """DTO para solicitud de login"""
    username: str = Field(..., description="Usuario o email")
    password: str = Field(..., min_length=6, description="Contraseña")
    tenant_slug: str = Field(..., description="Slug del tenant")
    
    class Config:
        json_schema_extra = {
            "example": {
                "username": "usuario@ejemplo.com",
                "password": "password123",
                "tenant_slug": "empresa-abc"
            }
        }


class TokenResponseDTO(BaseModel):
    """DTO para respuesta de token"""
    access_token: str
    refresh_token: str
    token_type: str = "bearer"
    expires_in: int
    
    class Config:
        json_schema_extra = {
            "example": {
                "access_token": "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9...",
                "refresh_token": "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9...",
                "token_type": "bearer",
                "expires_in": 3600
            }
        }


class RefreshTokenRequestDTO(BaseModel):
    """DTO para solicitud de refresh token"""
    refresh_token: str = Field(..., description="Refresh token")


class UserInfoResponseDTO(BaseModel):
    """DTO para información de usuario"""
    sub: str
    email: Optional[str] = None
    name: Optional[str] = None
    preferred_username: Optional[str] = None
    tenant_id: Optional[int] = None
    roles: list[str] = []
    
    class Config:
        json_schema_extra = {
            "example": {
                "sub": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
                "email": "usuario@ejemplo.com",
                "name": "Juan Pérez",
                "preferred_username": "jperez",
                "tenant_id": 1,
                "roles": ["user", "admin"]
            }
        }


class LogoutRequestDTO(BaseModel):
    """DTO para solicitud de logout"""
    refresh_token: str = Field(..., description="Refresh token para invalidar")


class RegisterRequestDTO(BaseModel):
    """DTO para solicitud de registro"""
    username: str = Field(..., min_length=3, max_length=50, description="Nombre de usuario")
    email: EmailStr = Field(..., description="Email del usuario")
    password: str = Field(..., min_length=8, description="Contraseña")
    first_name: str = Field(..., min_length=2, max_length=50, description="Nombre")
    last_name: str = Field(..., min_length=2, max_length=50, description="Apellido")
    tenant_slug: str = Field(..., description="Slug del tenant")
    
    class Config:
        json_schema_extra = {
            "example": {
                "username": "jperez",
                "email": "jperez@ejemplo.com",
                "password": "MiPassword123!",
                "first_name": "Juan",
                "last_name": "Pérez",
                "tenant_slug": "empresa-abc"
            }
        }


class RegisterResponseDTO(BaseModel):
    """DTO para respuesta de registro"""
    user_id: str
    username: str
    email: str
    message: str
    
    class Config:
        json_schema_extra = {
            "example": {
                "user_id": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
                "username": "jperez",
                "email": "jperez@ejemplo.com",
                "message": "User registered successfully"
            }
        }


class ExchangeCodeRequestDTO(BaseModel):
    """DTO para intercambiar authorization code por tokens (OAuth2 flow)"""
    code: str = Field(..., description="Authorization code de OAuth2")
    redirect_uri: str = Field(..., description="Redirect URI usado en la autorización")
    tenant_slug: Optional[str] = Field(None, description="Slug del tenant (opcional)")
    
    class Config:
        json_schema_extra = {
            "example": {
                "code": "eyJhbGciOiJkaXIiLCJlbmMiOiJBMTI4Q0JDLUhTMjU2Ii...",
                "redirect_uri": "http://localhost:5173/auth/callback",
                "tenant_slug": "empresa-abc"
            }
        }


class SetCookieRequestDTO(BaseModel):
    """DTO para establecer cookies de autenticación"""
    access_token: str = Field(..., description="Access token JWT")
    refresh_token: str = Field(..., description="Refresh token JWT")
    
    class Config:
        json_schema_extra = {
            "example": {
                "access_token": "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9...",
                "refresh_token": "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9..."
            }
        }