register -> invite -> join -> send flow

d2m/actions/create-space.js

@@ -8,8 +8,8 @@ const api = sync.require("../../matrix/api")
 /**
  * @param {import("discord-api-types/v10").RESTGetAPIGuildResult} guild
  */
-function createSpace(guild) {
-	return api.createRoom({
+async function createSpace(guild) {
+	const roomID = api.createRoom({
 		name: guild.name,
 		preset: "private_chat",
 		visibility: "private",
@@ -37,10 +37,9 @@ function createSpace(guild) {
 				}
 			}
 		]
-	}).then(root => {
-		db.prepare("INSERT INTO guild_space (guild_id, space_id) VALUES (?, ?)").run(guild.id, root.room_id)
-		return root
 	})
+	db.prepare("INSERT INTO guild_space (guild_id, space_id) VALUES (?, ?)").run(guild.id, roomID)
+	return roomID
 }
 
 module.exports.createSpace = createSpace

d2m/actions/register-user.js

@@ -1,6 +1,7 @@
 // @ts-check
 
 const assert = require("assert")
+const reg = require("../../matrix/read-registration")
 
 const passthrough = require("../../passthrough")
 const { discord, sync, db } = passthrough
@@ -14,10 +15,58 @@ const userToMxid = sync.require("../converters/user-to-mxid")
 /**
  * A sim is an account that is being simulated by the bridge to copy events from the other side.
  * @param {import("discord-api-types/v10").APIUser} user
+ * @returns mxid
  */
 async function createSim(user) {
+	// Choose sim name
 	const simName = userToMxid.userToSimName(user)
-	const appservicePrefix = "_ooye_"
-	const localpart = appservicePrefix + simName
+	const localpart = reg.namespace_prefix + simName
+	const mxid = "@" + localpart + ":cadence.moe"
+
+	// Save chosen name in the database forever
+	db.prepare("INSERT INTO sim (discord_id, sim_name, localpart, mxid) VALUES (?, ?, ?, ?)").run(user.id, simName, localpart, mxid)
+
+	// Register matrix user with that name
 	await api.register(localpart)
+	return mxid
 }
+
+/**
+ * Ensure a sim is registered for the user.
+ * If there is already a sim, use that one. If there isn't one yet, register a new sim.
+ * @returns mxid
+ */
+async function ensureSim(user) {
+	let mxid = null
+	const existing = db.prepare("SELECT mxid FROM sim WHERE discord_id = ?").pluck().get(user.id)
+	if (existing) {
+		mxid = existing
+	} else {
+		mxid = await createSim(user)
+	}
+	return mxid
+}
+
+/**
+ * Ensure a sim is registered for the user and is joined to the room.
+ * @returns mxid
+ */
+async function ensureSimJoined(user, roomID) {
+	// Ensure room ID is really an ID, not an alias
+	assert.ok(roomID[0] === "!")
+
+	// Ensure user
+	const mxid = await ensureSim(user)
+
+	// Ensure joined
+	const existing = db.prepare("SELECT * FROM sim_member WHERE room_id = ? and mxid = ?").get(roomID, mxid)
+	if (!existing) {
+		await api.inviteToRoom(roomID, mxid)
+		await api.joinRoom(roomID, mxid)
+		db.prepare("INSERT INTO sim_member (room_id, mxid) VALUES (?, ?)").run(roomID, mxid)
+	}
+	return mxid
+}
+
+module.exports.ensureSim = ensureSim
+module.exports.ensureSimJoined = ensureSimJoined

d2m/actions/send-message.js

@@ -1,27 +1,29 @@
 // @ts-check
 
-const reg = require("../../matrix/read-registration.js")
-const makeTxnId = require("../../matrix/txnid.js")
 const fetch = require("node-fetch").default
-const messageToEvent = require("../converters/message-to-event.js")
+const reg = require("../../matrix/read-registration.js")
+
+const passthrough = require("../../passthrough")
+const { discord, sync, db } = passthrough
+/** @type {import("../converters/message-to-event")} */
+const messageToEvent = sync.require("../converters/message-to-event")
+/** @type {import("../../matrix/api")} */
+const api = sync.require("../../matrix/api")
+/** @type {import("./register-user")} */
+const registerUser = sync.require("./register-user")
 
 /**
  * @param {import("discord-api-types/v10").GatewayMessageCreateDispatchData} message
  */
-function sendMessage(message) {
+async function sendMessage(message) {
 	const event = messageToEvent.messageToEvent(message)
-	return fetch(`https://matrix.cadence.moe/_matrix/client/v3/rooms/!VwVlIAjOjejUpDhlbA:cadence.moe/send/m.room.message/${makeTxnId()}?user_id=@_ooye_example:cadence.moe`, {
-		method: "PUT",
-		body: JSON.stringify(event),
-		headers: {
-			Authorization: `Bearer ${reg.as_token}`
-		}
-	}).then(res => res.text()).then(text => {
-		// {"event_id":"$4Zxs0fMmYlbo-sTlMmSEvwIs9b4hcg6yORzK0Ems84Q"}
-		console.log(text)
-	}).catch(err => {
-		console.log(err)
-	})
+	const roomID = "!VwVlIAjOjejUpDhlbA:cadence.moe"
+	let senderMxid = null
+	if (!message.webhook_id) {
+		senderMxid = await registerUser.ensureSimJoined(message.author, roomID)
+	}
+	const eventID = api.sendEvent(roomID, "m.room.message", event, senderMxid)
+	return eventID
 }
 
 module.exports.sendMessage = sendMessage

d2m/converters/user-to-mxid.test.js

@@ -13,7 +13,7 @@ test("user2name: works on normal name", t => {
 })
 
 test("user2name: works on emojis", t => {
-   t.equal(userToSimName({username: "Cookie 🍪", discriminator: "0001"}), "cookie")
+   t.equal(userToSimName({username: "🍪 Cookie Monster 🍪", discriminator: "0001"}), "cookie_monster")
 })
 
 test("user2name: works on crazy name", t => {