add tests, implement kstate and state diffing

d2m/actions/send-message.js

@@ -2,14 +2,14 @@
 
 const reg = require("../../matrix/read-registration.js")
 const makeTxnId = require("../../matrix/txnid.js")
-const fetch = require("node-fetch")
+const fetch = require("node-fetch").default
 const messageToEvent = require("../converters/message-to-event.js")
 
 /**
  * @param {import("discord-api-types/v10").GatewayMessageCreateDispatchData} message
  */
 function sendMessage(message) {
-	const event = messageToEvent(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),