Timer for anything that uses timer (ex. tempban, slowmode duration) will disappear if the bot restarts in the middle of the timer running

[aldenasf]

Description

When a timer is currently running like someone being temp banned, the bot will use setTimeout() to unban the user after a specified amount of time. If the bot restarts when the bot is running, the timer will be lost causing the user to never be unbanned

Possible Solution

Store any timer in a database with a date variable of when it should run and the action to execute. Whenever the bot restarts, read all the items in the database and for each item in the database: calculate the remaining time before the timer is triggered and create a setTimeout() with the remaining time and action. Discord collection can be used to handle the database.
Discord collection can be used to handle the database. The structure of the item can be written like so
In a collection specifically for handling tempbans:

{
    "UserId" : "id of banned user",
    "GuildId" : "id of guild the user is banned in",
    "Trigger" : "timestamp of when the ban will end"
}