52 lines
1.7 KiB
JavaScript
52 lines
1.7 KiB
JavaScript
// @ts-check
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const DiscordTypes = require("discord-api-types/v10")
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const passthrough = require("../../passthrough")
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const {discord, db} = passthrough
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const SPEEDBUMP_SPEED = 4000 // 4 seconds delay
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const SPEEDBUMP_UPDATE_FREQUENCY = 2 * 60 * 60 // 2 hours
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/** @type {Set<any>} */
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const KNOWN_BOTS = new Set([
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"466378653216014359" // PluralKit
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])
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/**
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* Fetch new speedbump data for the channel and put it in the database as cache
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* @param {string} channelID
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* @param {number?} lastChecked
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*/
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async function updateCache(channelID, lastChecked) {
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const now = Math.floor(Date.now() / 1000)
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if (lastChecked && now - lastChecked < SPEEDBUMP_UPDATE_FREQUENCY) return
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const webhooks = await discord.snow.webhook.getChannelWebhooks(channelID)
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const found = webhooks.find(b => KNOWN_BOTS.has(b.application_id))
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const foundApplication = found?.application_id
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const foundWebhook = found?.id
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db.prepare("UPDATE channel_room SET speedbump_id = ?, speedbump_webhook_id = ?, speedbump_checked = ? WHERE channel_id = ?").run(foundApplication, foundWebhook, now, channelID)
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}
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/** @type {Set<string>} set of messageID */
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const bumping = new Set()
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/**
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* Slow down a message. After it passes the speedbump, return whether it's okay or if it's been deleted.
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* @param {string} messageID
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*/
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async function doSpeedbump(messageID) {
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bumping.add(messageID)
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await new Promise(resolve => setTimeout(resolve, SPEEDBUMP_SPEED))
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return !bumping.delete(messageID)
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}
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/**
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* @param {string} messageID
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*/
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function onMessageDelete(messageID) {
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bumping.delete(messageID)
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}
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module.exports.updateCache = updateCache
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module.exports.doSpeedbump = doSpeedbump
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module.exports.onMessageDelete = onMessageDelete
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