import uuid
from datetime import date, datetime
from typing import Optional

from pydantic import BaseModel, ConfigDict


class SubjectCreate(BaseModel):
    site_id: uuid.UUID
    subject_no: str
    screening_date: Optional[date] = None


class SubjectUpdate(BaseModel):
    status: Optional[str] = None
    enrollment_date: Optional[date] = None
    completion_date: Optional[date] = None
    drop_reason: Optional[str] = None


class SubjectRead(BaseModel):
    id: uuid.UUID
    study_id: uuid.UUID
    site_id: uuid.UUID
    subject_no: str
    status: str
    screening_date: Optional[date]
    enrollment_date: Optional[date]
    completion_date: Optional[date]
    drop_reason: Optional[str]
    created_at: datetime
    updated_at: datetime

    model_config = ConfigDict(from_attributes=True)