Add error-logging rejection handlers for discord client

src/d2m/discord-client.js

@@ -1,5 +1,6 @@
 // @ts-check
 
+const util = require("util")
 const DiscordTypes = require("discord-api-types/v10")
 const {Endpoints, SnowTransfer} = require("snowtransfer")
 const {reg} = require("../matrix/read-registration")
@@ -55,7 +56,9 @@ class DiscordClient {
 		this.guildChannelMap = new Map()
 		if (listen !== "no") {
 			this.cloud.on("event", message => {
-				discordPackets.onPacket(this, message, listen)
+				discordPackets.onPacket(this, message, listen).catch(e => {
+					console.error(`Unhandled error while processing Discord packet ${message.t}:\n${util.inspect(e, false, 4, false)}`)
+				})
 			})
 		}
 

src/d2m/discord-packets.js

@@ -1,6 +1,7 @@
 // @ts-check
 
 const assert = require("assert").strict
+const util = require("util")
 const {scheduler} = require("timers/promises")
 const passthrough = require("../passthrough")
 const {sync} = passthrough
@@ -216,7 +217,9 @@ async function onPacket(client, message, listen) {
 		const optionalEvents = ["TYPING_START"]
 		if (alwaysRealTimeEvents.includes(message.t) || homeserverStatus.homeserverStatus.isRealTime()) {
 			// real time
-			dispatchPacketToBridge(client, message)
+			dispatchPacketToBridge(client, message).catch(e => {
+				console.error(`Unhandled error while sending Discord packet ${message.t} to the bridge:\n${util.inspect(e, false, 4, false)}`)
+			})
 		} else if (optionalEvents.includes(message.t)) {
 			// when not real time, skip optional events
 		} else {