Fix reflecting generated embeds

m2d/actions/send-event.js

@@ -90,6 +90,7 @@ async function sendEvent(event) {
 	}))
 
 	let eventPart = 0 // 0 is primary, 1 is supporting
+	const pendingEdits = []
 
 	/** @type {DiscordTypes.APIMessage[]} */
 	const messageResponses = []
@@ -121,13 +122,16 @@ async function sendEvent(event) {
 		*/
 		const sentEmbedsCount = message.embeds?.length || 0
 		if (messageResponse.embeds.length > sentEmbedsCount) {
-			// @ts-ignore this is a valid message edit payload
+			// not awaiting here because requests to Matrix shouldn't block requests to Discord
-			editMessage.editMessage({ // not awaiting because requests to Matrix shouldn't block requests to Discord
+			pendingEdits.push(() =>
-				id: messageResponse.channel_id,
+				// @ts-ignore this is a valid message edit payload
-				channel_id: messageResponse.channel_id,
+				editMessage.editMessage({
-				guild_id: guild.id,
+					id: messageResponse.id,
-				embeds: messageResponse.embeds
+					channel_id: messageResponse.channel_id,
-			}, guild, null)
+					guild_id: guild.id,
+					embeds: messageResponse.embeds
+				}, guild, null)
+			)
 		}
 	}
 
@@ -135,6 +139,8 @@ async function sendEvent(event) {
 		registerUser.ensureSimJoined(user, event.room_id)
 	}
 
+	await Promise.all(pendingEdits.map(f => f())) // `await` will propagate any errors during editing
+
 	return messageResponses
 }