"""
Pydantic Models and Schemas
"""

from pydantic import BaseModel
from typing import Optional
from datetime import datetime


class CustomerBase(BaseModel):
    """Base customer schema"""
    name: str
    email: Optional[str] = None
    phone: Optional[str] = None
    address: Optional[str] = None


class CustomerCreate(CustomerBase):
    """Schema for creating a customer"""
    pass


class Customer(CustomerBase):
    """Full customer schema"""
    id: int
    created_at: datetime
    updated_at: Optional[datetime] = None
    
    class Config:
        from_attributes = True


class HardwareBase(BaseModel):
    """Base hardware schema"""
    serial_number: str
    model: str
    customer_id: int


class HardwareCreate(HardwareBase):
    """Schema for creating hardware"""
    pass


class Hardware(HardwareBase):
    """Full hardware schema"""
    id: int
    created_at: datetime
    
    class Config:
        from_attributes = True