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

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// @ts-check
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const assert = require("assert").strict
const passthrough = require("../../passthrough")
const { discord, sync, db } = 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")
/**
* @param {import("discord-api-types/v10").GatewayMessageReactionAddDispatchData} data
*/
async function addReaction(data) {
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const user = data.member?.user
assert.ok(user && user.username)
const parentID = db.prepare("SELECT event_id FROM event_message 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")
const roomID = await createRoom.ensureRoom(data.channel_id)
const senderMxid = await registerUser.ensureSimJoined(user, roomID)
const eventID = await api.sendEvent(roomID, "m.reaction", {
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"m.relates_to": {
rel_type: "m.annotation",
event_id: parentID,
key: data.emoji.name
}
}, senderMxid)
return eventID
}
module.exports.addReaction = addReaction