Start work on pinned events

d2m/actions/update-pins.js

@@ -0,0 +1,22 @@
+// @ts-check
+
+const passthrough = require("../../passthrough")
+const {discord, sync} = passthrough
+/** @type {import("../converters/pins-to-list")} */
+const pinsToList = sync.require("../converters/pins-to-list")
+/** @type {import("../../matrix/api")} */
+const api = sync.require("../../matrix/api")
+
+/**
+ * @param {string} channelID
+ * @param {string} roomID
+ */
+async function updatePins(channelID, roomID) {
+	const pins = await discord.snow.channel.getChannelPinnedMessages(channelID)
+	const eventIDs = pinsToList.pinsToList(pins)
+	await api.sendState(roomID, "m.room.pinned_events", "", {
+		pinned: eventIDs
+	})
+}
+
+module.exports.updatePins = updatePins

d2m/converters/pins-to-list.js

@@ -0,0 +1,18 @@
+// @ts-check
+
+const {select} = require("../../passthrough")
+
+/**
+ * @param {import("discord-api-types/v10").RESTGetAPIChannelPinsResult} pins
+ */
+function pinsToList(pins) {
+	/** @type {string[]} */
+	const result = []
+	for (const message of pins) {
+		const eventID = select("event_message", "event_id", {message_id: message.id, part: 0}).pluck().get()
+		if (eventID) result.push(eventID)
+	}
+	return result
+}
+
+module.exports.pinsToList = pinsToList

d2m/converters/pins-to-list.test.js

@@ -0,0 +1,12 @@
+const {test} = require("supertape")
+const data = require("../../test/data")
+const {pinsToList} = require("./pins-to-list")
+
+test("pins2list: converts known IDs, ignores unknown IDs", t => {
+	const result = pinsToList(data.pins.faked)
+	t.deepEqual(result, [
+		"$X16nfVks1wsrhq4E9SSLiqrf2N8KD0erD0scZG7U5xg",
+		"$mtR8cJqM4fKno1bVsm8F4wUVqSntt2sq6jav1lyavuA",
+		"$lnAF9IosAECTnlv9p2e18FG8rHn-JgYKHEHIh5qdFv4"
+	])
+})

d2m/discord-packets.js

@@ -133,6 +133,9 @@ const utils = {
 				} else if (message.t === "CHANNEL_UPDATE") {
 					await eventDispatcher.onChannelOrThreadUpdate(client, message.d, false)
 
+				} else if (message.t === "CHANNEL_PINS_UPDATE") {
+					await eventDispatcher.onChannelPinsUpdate(client, message.d)
+
 				} else if (message.t === "THREAD_CREATE") {
 					// @ts-ignore
 					await eventDispatcher.onThreadCreate(client, message.d)

d2m/event-dispatcher.js

@@ -19,6 +19,8 @@ const announceThread = sync.require("./actions/announce-thread")
 const createRoom = sync.require("./actions/create-room")
 /** @type {import("./actions/create-space")}) */
 const createSpace = sync.require("./actions/create-space")
+/** @type {import("./actions/update-pins")}) */
+const updatePins = sync.require("./actions/update-pins")
 /** @type {import("../matrix/api")}) */
 const api = sync.require("../matrix/api")
 /** @type {import("../discord/discord-command-handler")}) */
@@ -157,6 +159,16 @@ module.exports = {
 		await createRoom.syncRoom(channelOrThread.id)
 	},
 
+	/**
+	 * @param {import("./discord-client")} client
+	 * @param {DiscordTypes.GatewayChannelPinsUpdateDispatchData} data
+	 */
+	async onChannelPinsUpdate(client, data) {
+		const roomID = select("channel_room", "room_id", {channel_id: data.channel_id}).pluck().get()
+		if (!roomID) return // No target room to update pins in
+		await updatePins.updatePins(data.channel_id, roomID)
+	},
+
 	/**
 	 * @param {import("./discord-client")} client
 	 * @param {DiscordTypes.GatewayMessageCreateDispatchData} message