node-event-bot/server/handler/repeatingEvents/helper.ts
2022-04-21 19:46:03 +02:00

106 lines
3.6 KiB
TypeScript

import { format } from "date-fns"
import add from "date-fns/add"
import { DateResolvable, Guild, GuildScheduledEvent, GuildScheduledEventCreateOptions } from "discord.js"
import { findInScheduleTypes } from "../../helper/typeFind"
import { Maybe } from "../../interfaces"
import { RepetitonInfo, supportedSchedule } from "../../types/scheduledEventTypes"
export const repetitionMarkerIsFound = (desc: string): boolean => desc.includes('$rep')
export function createEventInGuild(guild: Guild, eventInfo: GuildScheduledEventCreateOptions): Promise<any> {
return guild.scheduledEvents.create(eventInfo)
}
export function getRepetitonInfo(description: string): RepetitonInfo {
const lines = description.split(`\n`)
const repetitionString = lines.find(x => x.startsWith('$rep:'))
if (!repetitionString)
throw new Error('Cant find repetition string')
const schedule: supportedSchedule = determineSchedule(repetitionString)
const { totalAmount, alreadyOccured } = determineRepetitionCount(repetitionString)
const endDate = determineEndDate(repetitionString)
return {
totalAmount,
alreadyOccured,
schedule,
endDate
}
}
export function determineSchedule(repetitionLine: string): supportedSchedule {
const segments = repetitionLine.split(':')
const scheduleSegment = segments[1]
const easilyKnownScheduleName = findInScheduleTypes(scheduleSegment)
if (easilyKnownScheduleName)
return easilyKnownScheduleName
else
throw new Error('Inferring schedule names is not yet supported')
}
export function determineRepetitionCount(description: string): { totalAmount: number; alreadyOccured: number } {
const segments = description.split(':')
const amountSegment = segments[2]
const amounts = amountSegment.split('/')
return { totalAmount: Number(amounts[1]) ?? 0, alreadyOccured: Number(amounts[0]) ?? 0 }
}
export function buildNewRepetitionString(repetitionInfo: RepetitonInfo) {
if (repetitionInfo.endDate)
return `$rep:${repetitionInfo.schedule}:${format(repetitionInfo.endDate, 'yyyy-MM-dd')}`
return `$rep:${repetitionInfo.schedule}:${repetitionInfo.alreadyOccured + 1}/${repetitionInfo.totalAmount}`
}
export function addRepetitonStringToEventDescription(oldguildScheduledEvent: string, newRepetitonString: string): string | undefined {
const lines = oldguildScheduledEvent.split(`\n`)
const repLineIndex = lines.findIndex(x => x.startsWith('$rep:'))
const newLines = lines.filter((_, index) => repLineIndex !== index)
newLines.push(newRepetitonString)
return newLines.join('\n')
}
export function getNewScheduledStart(oldguildScheduledEvent: GuildScheduledEvent<"SCHEDULED" | "ACTIVE" | "COMPLETED" | "CANCELED">, rInfo: RepetitonInfo): DateResolvable {
const oldDate = oldguildScheduledEvent.scheduledStartAt
let daysToAdd = 0
let monthsToAdd = 0
switch (rInfo.schedule) {
case 'daily':
daysToAdd = 1
break
case 'weekly':
daysToAdd = 7
break
case 'monthly':
monthsToAdd = 1
break
default:
throw new Error('No schedule found, cant add days')
}
const duration: Duration = {
days: daysToAdd,
months: monthsToAdd
}
const newDate = add(oldDate, duration)
return newDate
}
function determineEndDate(description: string): Maybe<Date> {
const segments = description.split(':')
if (segments.length === 3) {
// rep:sched:countOrDate
const segmentValue = segments[2]
if (segmentValue.includes('/')) {
if (segmentValue.match(/\//g) || [].length !== 2) {
return
}
}
const dateValue = new Date(segmentValue)
return dateValue
}
else if (segments.length === 4) {
// rep:sched:count:date
const segmentValue = segments[3]
const dateValue = new Date(segmentValue)
return dateValue
}
return
}