from __future__ import annotations

import uuid
from datetime import datetime

from pydantic import EmailStr, Field

from app.schemas.common import BaseSchema


class UserBase(BaseSchema):
    """Base user fields."""

    username: str = Field(..., min_length=3, max_length=150)
    email: EmailStr
    full_name: str | None = Field(None, max_length=255)


class UserCreate(UserBase):
    """User creation payload."""

    password: str = Field(..., min_length=8, max_length=128)
    is_active: bool = True
    is_superuser: bool = False
    role_names: list[str] = Field(default_factory=list)


class UserUpdate(BaseSchema):
    """User update payload."""

    email: EmailStr | None = None
    full_name: str | None = None
    is_active: bool | None = None
    is_superuser: bool | None = None
    role_names: list[str] | None = None


class RoleResponse(BaseSchema):
    """Role response."""

    id: uuid.UUID
    name: str
    description: str | None


class UserResponse(BaseSchema):
    """Full user response."""

    id: uuid.UUID
    username: str
    email: str
    full_name: str | None
    is_active: bool
    is_superuser: bool
    roles: list[RoleResponse] = Field(default_factory=list)
    created_at: datetime
    updated_at: datetime
    last_login: datetime | None


class UserListResponse(BaseSchema):
    """Minimal user response for lists."""

    id: uuid.UUID
    username: str
    email: str
    full_name: str | None
    is_active: bool
    created_at: datetime