from datetime import datetime, date, time
from decimal import Decimal
from pydantic import BaseModel, Field


class CalendarEventCreate(BaseModel):
    title: str = Field(..., max_length=200)
    description: str | None = None
    event_date: date
    event_time: time | None = None
    is_recurring: bool = False
    recurrence_pattern: str | None = Field(None, pattern="^(daily|weekly|monthly|yearly)$")
    recurrence_end_date: date | None = None
    related_operation_id: int | None = None
    category_id: int | None = None
    amount: Decimal | None = None
    currency_id: int | None = None
    reminder_days: int | None = Field(None, ge=0)
    is_completed: bool = False


class CalendarEventUpdate(BaseModel):
    title: str | None = Field(None, max_length=200)
    description: str | None = None
    event_date: date | None = None
    event_time: time | None = None
    is_recurring: bool | None = None
    recurrence_pattern: str | None = None
    recurrence_end_date: date | None = None
    related_operation_id: int | None = None
    category_id: int | None = None
    amount: Decimal | None = None
    reminder_days: int | None = None
    is_completed: bool | None = None


class CalendarEventOut(BaseModel):
    id: int
    user_id: int
    title: str
    description: str | None = None
    event_date: date
    event_time: time | None = None
    is_recurring: bool
    recurrence_pattern: str | None = None
    recurrence_end_date: date | None = None
    related_operation_id: int | None = None
    category_id: int | None = None
    amount: Decimal | None = None
    currency_id: int | None = None
    reminder_days: int | None = None
    is_completed: bool
    created_at: datetime

    model_config = {"from_attributes": True}