switch to using api functions over mreq

d2m/actions/register-user.js

@@ -8,12 +8,16 @@ const { discord, sync, db } = passthrough
 const api = sync.require("../../matrix/api")
 /** @type {import("../../matrix/file")} */
 const file = sync.require("../../matrix/file")
+/** @type {import("../converters/user-to-mxid")} */
+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
  */
 async function createSim(user) {
-	assert.notEqual(user.discriminator, "0000", "user is not a webhook")
-	api.register("_ooye_example")
+	const simName = userToMxid.userToSimName(user)
+	const appservicePrefix = "_ooye_"
+	const localpart = appservicePrefix + simName
+	await api.register(localpart)
 }