"""
Pydantic domain models for the Veterinary Clinic example.

This module defines Pydantic models representing the five domain
entities used by the veterinary clinic service. These models are
referenced by the OpenAPI specification for request and response
schemas.

The models are declarative and framework-agnostic. They contain no
persistence logic, validation beyond type constraints, or business
behavior.

This module is not part of the ``openapi_first`` library API surface.
It exists solely to support the example application template.
"""

from datetime import date, datetime
from pydantic import BaseModel


class Metadata(BaseModel):
    createdOn: datetime | None = None
    updatedOn: datetime | None = None


class ParentBase(BaseModel):
    name: str
    email: str
    phone: str | None = None
    metadata: Metadata | None = None


class ParentCreate(ParentBase):
    pass


class Parent(ParentBase):
    id: int


class VetBase(BaseModel):
    name: str
    specialty: str | None = None
    email: str
    phone: str | None = None
    metadata: Metadata | None = None


class VetCreate(VetBase):
    pass


class Vet(VetBase):
    id: int


class TreatmentBase(BaseModel):
    label: str
    description: str | None = None
    metadata: Metadata | None = None


class TreatmentCreate(TreatmentBase):
    pass


class Treatment(TreatmentBase):
    id: int


class PetBase(BaseModel):
    name: str
    species: str
    age: int | None = None
    weight: float | None = None
    birthDate: date | None = None
    photo: str | None = None
    parent_ids: list[int] = []
    metadata: Metadata | None = None


class PetCreate(PetBase):
    pass


class Pet(PetBase):
    id: int


class AppointmentBase(BaseModel):
    date: datetime
    notes: str | None = None
    pet_id: int
    vet_id: int
    treatment_id: int
    metadata: Metadata | None = None


class AppointmentCreate(AppointmentBase):
    pass


class Appointment(AppointmentBase):
    id: int