Put expressions with the actions, where it belongs

d2m/actions/create-space.js

@@ -13,8 +13,8 @@ const api = sync.require("../../matrix/api")
 const file = sync.require("../../matrix/file")
 /** @type {import("./create-room")} */
 const createRoom = sync.require("./create-room")
-/** @type {import("../converters/expression")} */
-const expression = sync.require("../converters/expression")
+/** @type {import("./expression")} */
+const expression = sync.require("./expression")
 /** @type {import("../../matrix/kstate")} */
 const ks = sync.require("../../matrix/kstate")
 

d2m/actions/expression.js

@@ -0,0 +1,82 @@
+// @ts-check
+
+const DiscordTypes = require("discord-api-types/v10")
+
+const passthrough = require("../../passthrough")
+const {sync, db} = passthrough
+/** @type {import("../../matrix/file")} */
+const file = sync.require("../../matrix/file")
+
+/**
+ * @param {DiscordTypes.APIEmoji[]} emojis
+ */
+async function emojisToState(emojis) {
+	const result = {
+		pack: {
+			display_name: "Discord Emojis",
+			usage: ["emoticon"] // we'll see...
+		},
+		images: {
+		}
+	}
+	await Promise.all(emojis.map(emoji =>
+		// the homeserver can probably cope with doing this in parallel
+		file.uploadDiscordFileToMxc(file.emoji(emoji.id, emoji.animated)).then(url => {
+			result.images[emoji.name] = {
+				info: {
+					mimetype: emoji.animated ? "image/gif" : "image/png"
+				},
+				url
+			}
+			db.prepare("INSERT OR IGNORE INTO emoji (emoji_id, name, animated, mxc_url) VALUES (?, ?, ?, ?)").run(emoji.id, emoji.name, +!!emoji.animated, url)
+		}).catch(e => {
+			if (e.data.errcode === "M_TOO_LARGE") { // Very unlikely to happen. Only possible for 3x-series emojis uploaded shortly after animated emojis were introduced, when there was no 256 KB size limit.
+				return
+			}
+			console.error(`Trying to handle emoji ${emoji.name} (${emoji.id}), but...`)
+			throw e
+		})
+	))
+	return result
+}
+
+/**
+ * @param {DiscordTypes.APISticker[]} stickers
+ */
+async function stickersToState(stickers) {
+	const result = {
+		pack: {
+			display_name: "Discord Stickers",
+			usage: ["sticker"] // we'll see...
+		},
+		images: {
+		}
+	}
+	const shortcodes = []
+	await Promise.all(stickers.map(sticker =>
+		// the homeserver can probably cope with doing this in parallel
+		file.uploadDiscordFileToMxc(file.sticker(sticker)).then(url => {
+
+			/** @type {string | undefined} */
+			let body = sticker.name
+			if (sticker && sticker.description) body += ` - ${sticker.description}`
+			if (!body) body = undefined
+
+			let shortcode = sticker.name.toLowerCase().replace(/[^a-zA-Z0-9_-]/g, "-").replace(/^-|-$/g, "").replace(/--+/g, "-")
+			while (shortcodes.includes(shortcode)) shortcode = shortcode + "~"
+			shortcodes.push(shortcode)
+
+			result.images[shortcodes] = {
+				info: {
+					mimetype: file.stickerFormat.get(sticker.format_type)?.mime || "image/png"
+				},
+				body,
+				url
+			}
+		})
+	))
+	return result
+}
+
+module.exports.emojisToState = emojisToState
+module.exports.stickersToState = stickersToState