"""Pydantic schemas for User API requests/responses."""

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


# Shared properties
class UserBase(BaseModel):
    """Base user schema with common fields."""

    username: Optional[str] = Field(None, min_length=3, max_length=100)
    email: Optional[EmailStr] = None
    is_active: Optional[bool] = True
    is_superuser: Optional[bool] = False


# Properties to receive via API on creation
class UserCreate(UserBase):
    """Schema for user creation."""

    username: str = Field(..., min_length=3, max_length=100)
    email: EmailStr
    password: str = Field(..., min_length=8)
    permissions: Optional[Dict[str, bool]] = None


# Properties to receive via API on update
class UserUpdate(UserBase):
    """Schema for user update."""

    password: Optional[str] = Field(None, min_length=8)
    permissions: Optional[Dict[str, bool]] = None


# Properties shared by models stored in DB
class UserInDBBase(UserBase):
    """Schema for user in database (base)."""

    id: str  # UUID stored as string for SQLite compatibility
    permissions: Dict[str, bool] = Field(default_factory=dict)
    created_at: datetime
    updated_at: datetime
    last_login: Optional[datetime] = None

    class Config:
        from_attributes = True  # Pydantic v2 (was orm_mode in v1)


# Additional properties to return via API
class User(UserInDBBase):
    """Schema for user response."""

    pass


# Additional properties stored in DB
class UserInDB(UserInDBBase):
    """Schema for user with hashed password."""

    hashed_password: str