ReminderBot/bot/models/reminder.py

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from __future__ import annotations
from datetime import datetime
from typing import List, Optional
import pytz
from sqlalchemy import (
Boolean,
DateTime,
ForeignKey,
Integer,
String,
Text,
func,
)
from sqlalchemy.orm import Mapped, Session, mapped_column, relationship
from bot.models.database import Base
class Reminder(Base):
__tablename__ = "reminders"
id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
user_id: Mapped[int] = mapped_column(Integer, ForeignKey("users.id"), nullable=False)
title: Mapped[str] = mapped_column(String(256), nullable=False)
description: Mapped[Optional[str]] = mapped_column(Text)
# once / daily / weekly / monthly / interval
reminder_type: Mapped[str] = mapped_column(String(32), nullable=False)
once_time: Mapped[Optional[datetime]] = mapped_column(DateTime(timezone=True))
daily_time: Mapped[Optional[str]] = mapped_column(String(5)) # "HH:MM"
weekly_days: Mapped[Optional[str]] = mapped_column(String(32)) # "0,1,2" (Mon=0)
monthly_day: Mapped[Optional[int]] = mapped_column(Integer)
interval_minutes: Mapped[Optional[int]] = mapped_column(Integer)
interval_start_time: Mapped[Optional[str]] = mapped_column(String(5)) # "HH:MM"
interval_end_time: Mapped[Optional[str]] = mapped_column(String(5)) # "HH:MM"
skip_holidays: Mapped[bool] = mapped_column(Boolean, default=False)
is_active: Mapped[bool] = mapped_column(Boolean, default=True)
last_sent_at: Mapped[Optional[datetime]] = mapped_column(DateTime(timezone=True))
next_run_at: Mapped[Optional[datetime]] = mapped_column(DateTime(timezone=True))
created_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), server_default=func.now()
)
updated_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
)
logs: Mapped[List["ReminderLog"]] = relationship(
"ReminderLog", back_populates="reminder", cascade="all, delete-orphan"
)
@classmethod
def get_active(cls, session: Session) -> List["Reminder"]:
return session.query(cls).filter_by(is_active=True).all()
@classmethod
def get_user_reminders(cls, session: Session, user_id: int) -> List["Reminder"]:
return session.query(cls).filter_by(user_id=user_id).order_by(cls.created_at).all()
def type_display(self) -> str:
mapping = {
"once": "一次性",
"daily": "每日",
"weekly": "每周",
"monthly": "每月",
"interval": "间隔",
}
return mapping.get(self.reminder_type, self.reminder_type)
def schedule_summary(self) -> str:
if self.reminder_type == "once" and self.once_time:
tz = pytz.timezone("Asia/Shanghai")
dt = self.once_time
if dt.tzinfo is None:
dt = pytz.utc.localize(dt)
return dt.astimezone(tz).strftime("%Y-%m-%d %H:%M")
if self.reminder_type == "daily" and self.daily_time:
return f"每天 {self.daily_time}"
if self.reminder_type == "weekly" and self.weekly_days and self.daily_time:
day_names = ["周一", "周二", "周三", "周四", "周五", "周六", "周日"]
days = ", ".join(day_names[int(d)] for d in self.weekly_days.split(","))
return f"{days} {self.daily_time}"
if self.reminder_type == "interval" and self.interval_minutes:
return (
f"{self.interval_minutes} 分钟"
f"{self.interval_start_time}{self.interval_end_time}"
)
return ""
class ReminderLog(Base):
__tablename__ = "reminder_logs"
id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
reminder_id: Mapped[int] = mapped_column(
Integer, ForeignKey("reminders.id"), nullable=False
)
sent_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), server_default=func.now()
)
# sent / snoozed / completed / failed
status: Mapped[str] = mapped_column(String(32), default="sent")
reminder: Mapped["Reminder"] = relationship("Reminder", back_populates="logs")