"""Pydantic schemas for account-related API operations."""
from pydantic import BaseModel, Field
from datetime import datetime
from typing import Optional

from app.models.account import AccountType


class AccountBase(BaseModel):
    """Base schema for account data."""
    account_number: str = Field(..., description="Unique account identifier")
    account_name: str = Field(..., description="Human-readable account name")
    account_type: AccountType = Field(default=AccountType.CASH, description="Account type")


class AccountCreate(AccountBase):
    """Schema for creating a new account."""
    pass


class AccountUpdate(BaseModel):
    """Schema for updating an existing account."""
    account_name: Optional[str] = Field(None, description="Updated account name")
    account_type: Optional[AccountType] = Field(None, description="Updated account type")


class AccountResponse(AccountBase):
    """Schema for account API responses."""
    id: int
    created_at: datetime
    updated_at: datetime

    class Config:
        from_attributes = True