src/bridge/MatrixHandler.ts: handle replying to self

When someone sent a message:

	<f_[mtrx]> Hello?

And then replied to their own message:

	<f_[mtrx]> > <@Funderscore:nova.astraltech.org> Hello?
	           Hi?

What would be sent on IRC would either be this:

	<f_[mtrx]> Hello?
	<f_[mtrx]> f_[mtrx]: Hi?

Or:

	<f_[mtrx]> Hello?
	-- a while later --
	<f_[mtrx]> f_[mtrx]: "Hello?" <- Hi?

Both of which are confusing because usually nobody pings themself on
IRC.

This commit treats replies to self differently, and introduces a new
`selfReplyTemplate` config option, so that the reply gets bridged as:

	<f_[mtrx]> <f_[mtrx]> Hello?
	<f_[mtrx]> Hi?

Which is a bit more natural.

Signed-off-by: Ferass El Hafidi <vitali64pmemail@protonmail.com>

Author: Ferass El Hafidi

config.sample.yaml

@@ -602,6 +602,8 @@ ircService:
     shortReplyTemplate: "$NICK: $REPLY"
     # format of replies sent a while after the original message
     longReplyTemplate: "$NICK: \"$ORIGINAL\" <- $REPLY"
+    # format of replies where the sender of the original message is the same as the sender of the reply
+    selfReplyTemplate: "<$NICK> $ORIGINAL\n$REPLY"
     # how much time needs to pass between the reply and the original message to switch to the long format
     shortReplyTresholdSeconds: 300
     # Ignore users mentioned in a io.element.functional_members state event when checking admin room membership

config.schema.yml

@@ -171,6 +171,8 @@ properties:
                         type: "string"
                     shortReplyTresholdSeconds:
                         type: "integer"
+                    selfReplyTemplate:
+                        type: "string"
                     ignoreFunctionalMembersInAdminRooms:
                         type: "boolean"
             ircHandler:

src/bridge/MatrixHandler.ts

@@ -55,6 +55,8 @@ export interface MatrixHandlerConfig {
     shortReplyTemplate: string;
     // Format of replies sent a while after the original message
     longReplyTemplate: string;
+    // format of replies where the sender of the original message is the same as the sender of the reply
+    selfReplyTemplate: string;
     // Format of the text explaining why a message is truncated and pastebinned
     truncatedMessageTemplate: string;
     // Ignore io.element.functional_members members joining admin rooms.
@@ -68,6 +70,7 @@ export const DEFAULTS: MatrixHandlerConfig = {
     shortReplyTresholdSeconds: 5 * 60,
     shortReplyTemplate: "$NICK: $REPLY",
     longReplyTemplate: "$NICK: \"$ORIGINAL\" <- $REPLY",
+    selfReplyTemplate: "<$NICK> $ORIGINAL\n$REPLY",
     truncatedMessageTemplate: "(full message at <$URL>)",
     ignoreFunctionalMembersInAdminRooms: false,
 };
@@ -1468,7 +1471,11 @@ export class MatrixHandler {
 
         let replyTemplate: string;
         const thresholdMs = (this.config.shortReplyTresholdSeconds) * 1000;
-        if (rplSource && event.origin_server_ts - cachedEvent.timestamp > thresholdMs) {
+        if (cachedEvent.sender === event.sender) {
+            // They're replying to their own message.
+            replyTemplate = this.config.selfReplyTemplate;
+        }
+	else if (rplSource && event.origin_server_ts - cachedEvent.timestamp > thresholdMs) {
             replyTemplate = this.config.longReplyTemplate;
         }
         else {