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

from pydantic import BaseModel, ConfigDict


class VisitCreate(BaseModel):
    subject_id: uuid.UUID
    visit_code: str
    planned_date: Optional[date] = None
    window_start: Optional[date] = None
    window_end: Optional[date] = None
    actual_date: Optional[date] = None
    notes: Optional[str] = None


class VisitUpdate(BaseModel):
    actual_date: Optional[date] = None
    status: Optional[str] = None
    notes: Optional[str] = None


class EarlyTerminationCreate(BaseModel):
    termination_date: date
    reason: str
    notes: Optional[str] = None


class VisitRead(BaseModel):
    id: uuid.UUID
    study_id: uuid.UUID
    subject_id: uuid.UUID
    visit_code: str
    planned_date: Optional[date]
    actual_date: Optional[date]
    status: str
    window_start: Optional[date]
    window_end: Optional[date]
    notes: Optional[str]
    created_at: datetime
    updated_at: datetime

    model_config = ConfigDict(from_attributes=True)


class VisitLostItem(BaseModel):
    visit_id: uuid.UUID
    subject_id: uuid.UUID
    subject_no: str
    site_id: uuid.UUID | None
    visit_code: str
    status: str
    updated_at: datetime

    model_config = ConfigDict(from_attributes=True)