"""Pydantic v2 schemas for User responses and mutations."""

from datetime import datetime
from typing import Optional

from pydantic import BaseModel, EmailStr


class UserResponse(BaseModel):
    """Public representation of a user (returned by API endpoints)."""

    id: int
    username: str
    email: str
    first_name: Optional[str] = None
    last_name: Optional[str] = None
    display_name: Optional[str] = None
    avatar_url: Optional[str] = None
    role: str
    mfa_enabled: bool
    is_active: bool
    last_login: Optional[datetime] = None
    created_at: datetime

    model_config = {"from_attributes": True}


class UserCreate(BaseModel):
    """Admin-only: create a user directly (bypasses invitation/domain check)."""

    username: str
    email: EmailStr
    password: str
    role: str = "dak_mitarbeiter"


class ProfileUpdate(BaseModel):
    """Self-service profile update (authenticated user edits own data)."""

    first_name: Optional[str] = None
    last_name: Optional[str] = None
    display_name: Optional[str] = None
    username: Optional[str] = None
    email: Optional[EmailStr] = None


class UserUpdate(BaseModel):
    """Admin-only: partial update of user fields."""

    username: Optional[str] = None
    email: Optional[EmailStr] = None
    role: Optional[str] = None
    is_active: Optional[bool] = None