out-of-your-element/d2m/actions/add-reaction.js

58 lines
2.1 KiB
JavaScript

// @ts-check
const assert = require("assert").strict
const passthrough = require("../../passthrough")
const {discord, sync, db, select} = passthrough
/** @type {import("../../matrix/api")} */
const api = sync.require("../../matrix/api")
/** @type {import("./register-user")} */
const registerUser = sync.require("./register-user")
/** @type {import("../actions/create-room")} */
const createRoom = sync.require("../actions/create-room")
/** @type {import("../../matrix/file")} */
const file = sync.require("../../matrix/file")
/**
* @param {import("discord-api-types/v10").GatewayMessageReactionAddDispatchData} data
*/
async function addReaction(data) {
const user = data.member?.user
assert.ok(user && user.username)
const parentID = select("event_message", "event_id", "WHERE message_id = ? AND part = 0").pluck().get(data.message_id) // 0 = primary
if (!parentID) return // Nothing can be done if the parent message was never bridged.
assert.equal(typeof parentID, "string")
let key
if (data.emoji.id) {
// Custom emoji
const mxc = select("emoji", "mxc_url", "WHERE id = ?").pluck().get(data.emoji.id)
if (mxc) {
// The custom emoji is registered and we should send it
key = mxc
} else {
// The custom emoji is not registered. We will register it and then add it.
const mxc = await file.uploadDiscordFileToMxc(file.emoji(data.emoji.id, data.emoji.animated))
db.prepare("INSERT OR IGNORE INTO emoji (id, name, animated, mxc_url) VALUES (?, ?, ?, ?)").run(data.emoji.id, data.emoji.name, +!!data.emoji.animated, mxc)
key = mxc
// TODO: what happens if the matrix user also tries adding this reaction? the bridge bot isn't able to use that emoji...
}
} else {
// Default emoji
key = data.emoji.name
}
const roomID = await createRoom.ensureRoom(data.channel_id)
const senderMxid = await registerUser.ensureSimJoined(user, roomID)
const eventID = await api.sendEvent(roomID, "m.reaction", {
"m.relates_to": {
rel_type: "m.annotation",
event_id: parentID,
key
}
}, senderMxid)
return eventID
}
module.exports.addReaction = addReaction