Add reaction viewer to right click menu

discord/interactions/reactions.js

@@ -0,0 +1,58 @@
+// @ts-check
+
+const DiscordTypes = require("discord-api-types/v10")
+const {discord, sync, db, select, from} = require("../../passthrough")
+
+/** @type {import("../../matrix/api")} */
+const api = sync.require("../../matrix/api")
+/** @type {import("../../m2d/converters/utils")} */
+const utils = sync.require("../../m2d/converters/utils")
+
+/** @param {DiscordTypes.APIContextMenuGuildInteraction} interaction */
+/** @param {DiscordTypes.APIMessageApplicationCommandGuildInteraction} interaction */
+async function interact({id, token, data}) {
+	const row = from("event_message").join("message_channel", "message_id").join("channel_room", "channel_id")
+		.select("event_id", "room_id").where({message_id: data.target_id}).get()
+	if (!row) {
+		return discord.snow.interaction.createInteractionResponse(id, token, {
+			type: DiscordTypes.InteractionResponseType.ChannelMessageWithSource,
+			data: {
+				content: "This message hasn't been bridged to Matrix.",
+				flags: DiscordTypes.MessageFlags.Ephemeral
+			}
+		})
+	}
+
+	const reactions = await api.getFullRelations(row.room_id, row.event_id, "m.annotation")
+
+	/** @type {Map<string, string[]>} */
+	const inverted = new Map()
+	for (const reaction of reactions) {
+		if (utils.eventSenderIsFromDiscord(reaction.sender)) continue
+		const key = reaction.content["m.relates_to"].key
+		const displayname = select("member_cache", "displayname", {mxid: reaction.sender, room_id: row.room_id}).pluck().get() || reaction.sender
+		if (!inverted.has(key)) inverted.set(key, [])
+		// @ts-ignore
+		inverted.get(key).push(displayname)
+	}
+
+	if (inverted.size === 0) {
+		return discord.snow.interaction.createInteractionResponse(id, token, {
+			type: DiscordTypes.InteractionResponseType.ChannelMessageWithSource,
+			data: {
+				content: "Nobody from Matrix reacted to this message.",
+				flags: DiscordTypes.MessageFlags.Ephemeral
+			}
+		})
+	}
+
+	return discord.snow.interaction.createInteractionResponse(id, token, {
+		type: DiscordTypes.InteractionResponseType.ChannelMessageWithSource,
+		data: {
+			content: [...inverted.entries()].map(([key, value]) => `${key} ⮞ ${value.join(" ⬩ ")}`).join("\n"),
+			flags: DiscordTypes.MessageFlags.Ephemeral
+		}
+	})
+}
+
+module.exports.interact = interact