Remove sims when the Discord user leaves

src/d2m/converters/message-to-event.test.components.js

@@ -65,7 +65,7 @@ test("message2event components: pk question mark output", async t => {
 			+ "<hr>"
 			+ "<blockquote><p><strong>System:</strong> INX (<code>xffgnx</code>)"
 			+ "<br><strong>Member:</strong> Lillith (<code>pphhoh</code>)"
-			+ "<br><strong>Sent by:</strong> infinidoge1337 (@unknown-user:)"
+			+ "<br><strong>Sent by:</strong> infinidoge1337 (<a href=\"https://matrix.to/#/@_ooye_infinidoge1337:cadence.moe\">@unknown-user</a>)"
 			+ "<br><br><strong>Account Roles (7)</strong>"
 			+ "<br>§b, !, ‼, Ears Port Ping, Ears Update Ping, Yttr Ping, unsup Ping</p>"
 			+ `🖼️ <a href="https://files.inx.moe/p/cdn/lillith.webp">https://files.inx.moe/p/cdn/lillith.webp</a>`

src/d2m/converters/remove-member-mxids.js

@@ -0,0 +1,38 @@
+// @ts-check
+
+const passthrough = require("../../passthrough")
+const {db, select, from} = passthrough
+
+/**
+ * @param {string} userID discord user ID that left
+ * @param {string} guildID discord guild ID that they left
+ */
+function removeMemberMxids(userID, guildID) {
+	// Get sims for user and remove
+	let membership = from("sim").join("sim_member", "mxid").join("channel_room", "room_id")
+		.select("room_id", "mxid").where({user_id: userID, guild_id: guildID}).and("ORDER BY room_id, mxid").all()
+	membership = membership.concat(from("sim_proxy").join("sim", "user_id").join("sim_member", "mxid").join("channel_room", "room_id")
+		.select("room_id", "mxid").where({proxy_owner_id: userID, guild_id: guildID}).and("ORDER BY room_id, mxid").all())
+
+	// Get user installed apps and remove
+	/** @type {string[]} */
+	let userAppDeletions = []
+	// 1. Select apps that have 1 user remaining
+	/** @type {Set<string>} */
+	const appsWithOneUser = new Set(db.prepare("SELECT app_bot_id FROM app_user_install WHERE guild_id = ? GROUP BY app_bot_id HAVING count(*) = 1").pluck().all(guildID))
+	// 2. Select apps installed by this user
+	const appsFromThisUser = new Set(select("app_user_install", "app_bot_id", {guild_id: guildID, user_id: userID}).pluck().all())
+	if (appsFromThisUser.size) userAppDeletions.push(userID)
+	// Then remove user installed apps if this was the last user with them
+	const appsToRemove = appsWithOneUser.intersection(appsFromThisUser)
+	for (const botID of appsToRemove) {
+		// Remove sims for user installed app
+		const appRemoval = removeMemberMxids(botID, guildID)
+		membership = membership.concat(appRemoval.membership)
+		userAppDeletions = userAppDeletions.concat(appRemoval.userAppDeletions)
+	}
+
+	return {membership, userAppDeletions}
+}
+
+module.exports.removeMemberMxids = removeMemberMxids

src/d2m/converters/remove-member-mxids.test.js

@@ -0,0 +1,43 @@
+// @ts-check
+
+const {test} = require("supertape")
+const {removeMemberMxids} = require("./remove-member-mxids")
+
+test("remove member mxids: would remove mxid for all rooms in this server", t => {
+	t.deepEqual(removeMemberMxids("772659086046658620", "112760669178241024"), {
+		userAppDeletions: [],
+		membership: [{
+			mxid: "@_ooye_cadence:cadence.moe",
+			room_id: "!fGgIymcYWOqjbSRUdV:cadence.moe"
+		}, {
+			mxid: "@_ooye_cadence:cadence.moe",
+			room_id: "!kLRqKKUQXcibIMtOpl:cadence.moe"
+		}]
+	})
+})
+
+test("remove member mxids: removes sims too", t => {
+	t.deepEqual(removeMemberMxids("196188877885538304", "112760669178241024"), {
+		userAppDeletions: [],
+		membership: [{
+			mxid: '@_ooye_ampflower:cadence.moe',
+			room_id: '!qzDBLKlildpzrrOnFZ:cadence.moe'
+		}, {
+			mxid: '@_ooye__pk_zoego:cadence.moe',
+			room_id: '!qzDBLKlildpzrrOnFZ:cadence.moe'
+		}]
+	})
+})
+
+test("remove member mxids: removes apps too", t => {
+	t.deepEqual(removeMemberMxids("197126718400626689", "66192955777486848"), {
+		userAppDeletions: ["197126718400626689"],
+		membership: [{
+			mxid: '@_ooye_infinidoge1337:cadence.moe',
+			room_id: '!BnKuBPCvyfOkhcUjEu:cadence.moe'
+		}, {
+			mxid: '@_ooye_evil_lillith_sheher:cadence.moe',
+			room_id: '!BnKuBPCvyfOkhcUjEu:cadence.moe'
+		}]
+	})
+})