From 0d9191ed5c9429e8acf0bdee7955fcddcec7092a Mon Sep 17 00:00:00 2001
From: Cadence Ember <cadence@disroot.org>
Date: Tue, 29 Aug 2023 01:36:15 +1200
Subject: [PATCH] m->d support spoilers

---
 m2d/converters/event-to-message.js      | 10 +++++++++
 m2d/converters/event-to-message.test.js | 30 +++++++++++++++++++++++++
 notes.md                                |  5 ++---
 3 files changed, 42 insertions(+), 3 deletions(-)

diff --git a/m2d/converters/event-to-message.js b/m2d/converters/event-to-message.js
index 92e5ca4..9c221a5 100644
--- a/m2d/converters/event-to-message.js
+++ b/m2d/converters/event-to-message.js
@@ -57,6 +57,16 @@ turndownService.addRule("blockquote", {
 	}
 })
 
+turndownService.addRule("spoiler", {
+	filter: function (node, options) {
+		return node.hasAttribute("data-mx-spoiler")
+	},
+
+	replacement: function (content, node) {
+		return "||" + content + "||"
+	}
+})
+
 turndownService.addRule("inlineLink", {
 	filter: function (node, options) {
 	  return (
diff --git a/m2d/converters/event-to-message.test.js b/m2d/converters/event-to-message.test.js
index d071f8d..41bb2e7 100644
--- a/m2d/converters/event-to-message.test.js
+++ b/m2d/converters/event-to-message.test.js
@@ -120,6 +120,36 @@ test("event2message: basic html is converted to markdown", async t => {
 	)
 })
 
+test("event2message: spoilers work", async t => {
+	t.deepEqual(
+		await eventToMessage({
+			content: {
+				msgtype: "m.text",
+				body: "wrong body",
+				format: "org.matrix.custom.html",
+				formatted_body: `this <strong>is</strong> a <span data-mx-spoiler><em>test</em></span> of <span data-mx-spoiler="">spoilers</span>`
+			},
+			event_id: "$g07oYSZFWBkxohNEfywldwgcWj1hbhDzQ1sBAKvqOOU",
+			origin_server_ts: 1688301929913,
+			room_id: "!kLRqKKUQXcibIMtOpl:cadence.moe",
+			sender: "@cadence:cadence.moe",
+			type: "m.room.message",
+			unsigned: {
+				age: 405299
+			}
+		}),
+		{
+			messagesToDelete: [],
+			messagesToEdit: [],
+			messagesToSend: [{
+				username: "cadence [they]",
+				content: "this **is** a ||_test_|| of ||spoilers||",
+				avatar_url: undefined
+			}]
+		}
+	)
+})
+
 test("event2message: markdown syntax is escaped", async t => {
 	t.deepEqual(
 		await eventToMessage({
diff --git a/notes.md b/notes.md
index aa9066d..e701760 100644
--- a/notes.md
+++ b/notes.md
@@ -3,13 +3,12 @@
 ## Known issues
 
 - m->d attachments do not work
-- m->d edits do not work
-- m->d spoilers do not work
 - d->m support the rest of the attachments by reading the matrix spec instead of the current approach of whitelisting mime types
 - d->m emojis do not work at all (inline chat, single emoji size, reactions, bridged state)
 - m->d code blocks have slightly too much spacing
 - m->d some reactions don't work because of the variation selector
-- <--> check whether I implemented deletions
+- d->m check whether I implemented deletions
+- m->d deletions
 - rooms will be set up even if the bridge does not have permission for them, then break when it restarts and tries to reach messages
 	- test private threads as part of this
 	- solution part 1: calculate the permissions to see if the bot should be able to do stuff