252 lines
9.6 KiB
JavaScript
252 lines
9.6 KiB
JavaScript
// @ts-check
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const assert = require("assert").strict
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const {isDeepStrictEqual} = require("util")
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const DiscordTypes = require("discord-api-types/v10")
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const Ty = require("../../types")
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const reg = require("../../matrix/read-registration")
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const passthrough = require("../../passthrough")
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const {discord, sync, db, select} = passthrough
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/** @type {import("../../matrix/api")} */
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const api = sync.require("../../matrix/api")
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/** @type {import("../../matrix/file")} */
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const file = sync.require("../../matrix/file")
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/** @type {import("./create-room")} */
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const createRoom = sync.require("./create-room")
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/** @type {import("./expression")} */
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const expression = sync.require("./expression")
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/** @type {import("../../matrix/kstate")} */
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const ks = sync.require("../../matrix/kstate")
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/** @type {Map<string, Promise<string>>} guild ID -> Promise<space ID> */
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const inflightSpaceCreate = new Map()
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/**
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* @param {DiscordTypes.RESTGetAPIGuildResult} guild
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* @param {any} kstate
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*/
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async function createSpace(guild, kstate) {
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const name = kstate["m.room.name/"].name
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const topic = kstate["m.room.topic/"]?.topic || undefined
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assert(name)
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const roomID = await createRoom.postApplyPowerLevels(kstate, async kstate => {
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return api.createRoom({
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name,
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preset: createRoom.PRIVACY_ENUMS.PRESET[createRoom.DEFAULT_PRIVACY_LEVEL], // New spaces will have to use the default privacy level; we obviously can't look up the existing entry
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visibility: createRoom.PRIVACY_ENUMS.VISIBILITY[createRoom.DEFAULT_PRIVACY_LEVEL],
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power_level_content_override: {
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events_default: 100, // space can only be managed by bridge
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invite: 0 // any existing member can invite others
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},
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invite: reg.ooye.invite,
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topic,
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creation_content: {
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type: "m.space"
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},
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initial_state: ks.kstateToState(kstate)
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})
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})
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db.prepare("INSERT INTO guild_space (guild_id, space_id) VALUES (?, ?)").run(guild.id, roomID)
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return roomID
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}
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/**
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* @param {DiscordTypes.APIGuild} guild
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* @param {number} privacyLevel
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*/
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async function guildToKState(guild, privacyLevel) {
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const avatarEventContent = {}
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if (guild.icon) {
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avatarEventContent.discord_path = file.guildIcon(guild)
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avatarEventContent.url = await file.uploadDiscordFileToMxc(avatarEventContent.discord_path) // TODO: somehow represent future values in kstate (callbacks?), while still allowing for diffing, so test cases don't need to touch the media API
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}
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const guildKState = {
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"m.room.name/": {name: guild.name},
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"m.room.avatar/": avatarEventContent,
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"m.room.guest_access/": {guest_access: createRoom.PRIVACY_ENUMS.GUEST_ACCESS[privacyLevel]},
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"m.room.history_visibility/": {history_visibility: createRoom.PRIVACY_ENUMS.SPACE_HISTORY_VISIBILITY[privacyLevel]},
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"m.room.join_rules/": {join_rule: createRoom.PRIVACY_ENUMS.SPACE_JOIN_RULES[privacyLevel]},
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"m.room.power_levels/": {users: reg.ooye.invite.reduce((a, c) => (a[c] = 100, a), {})}
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}
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return guildKState
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}
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/**
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* @param {DiscordTypes.APIGuild} guild
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* @param {boolean} shouldActuallySync false if just need to ensure nspace exists (which is a quick database check),
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* true if also want to efficiently sync space name, space avatar, and child room avatars
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* @returns {Promise<string>} room ID
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*/
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async function _syncSpace(guild, shouldActuallySync) {
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assert.ok(guild)
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if (inflightSpaceCreate.has(guild.id)) {
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await inflightSpaceCreate.get(guild.id) // just waiting, and then doing a new db query afterwards, is the simplest way of doing it
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}
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const row = select("guild_space", ["space_id", "privacy_level"], {guild_id: guild.id}).get()
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if (!row) {
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const creation = (async () => {
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const guildKState = await guildToKState(guild, createRoom.DEFAULT_PRIVACY_LEVEL) // New spaces will have to use the default privacy level; we obviously can't look up the existing entry
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const spaceID = await createSpace(guild, guildKState)
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inflightSpaceCreate.delete(guild.id)
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return spaceID
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})()
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inflightSpaceCreate.set(guild.id, creation)
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return creation // Naturally, the newly created space is already up to date, so we can always skip syncing here.
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}
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const {space_id: spaceID, privacy_level} = row
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if (!shouldActuallySync) {
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return spaceID // only need to ensure space exists, and it does. return the space ID
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}
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console.log(`[space sync] to matrix: ${guild.name}`)
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const guildKState = await guildToKState(guild, privacy_level) // calling this in both branches because we don't want to calculate this if not syncing
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// sync guild state to space
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const spaceKState = await createRoom.roomToKState(spaceID)
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const spaceDiff = ks.diffKState(spaceKState, guildKState)
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await createRoom.applyKStateDiffToRoom(spaceID, spaceDiff)
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// guild icon was changed, so room avatars need to be updated as well as the space ones
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// doing it this way rather than calling syncRoom for great efficiency gains
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const newAvatarState = spaceDiff["m.room.avatar/"]
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if (guild.icon && newAvatarState?.url) {
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// don't try to update rooms with custom avatars though
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const roomsWithCustomAvatars = select("channel_room", "room_id", {}, "WHERE custom_avatar IS NOT NULL").pluck().all()
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const childRooms = ks.kstateToState(spaceKState).filter(({type, state_key, content}) => {
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return type === "m.space.child" && "via" in content && !roomsWithCustomAvatars.includes(state_key)
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}).map(({state_key}) => state_key)
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for (const roomID of childRooms) {
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const avatarEventContent = await api.getStateEvent(roomID, "m.room.avatar", "")
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if (avatarEventContent.url !== newAvatarState.url) {
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await api.sendState(roomID, "m.room.avatar", "", newAvatarState)
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}
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}
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}
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return spaceID
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}
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/**
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* Ensures the space exists. If it doesn't, creates the space with an accurate initial state.
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* @param {DiscordTypes.APIGuild} guild
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*/
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function ensureSpace(guild) {
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return _syncSpace(guild, false)
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}
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/**
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* Actually syncs. Efficiently updates the space name, space avatar, and child room avatars.
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* @param {DiscordTypes.APIGuild} guild
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*/
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function syncSpace(guild) {
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return _syncSpace(guild, true)
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}
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/**
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* Inefficiently force the space and its existing child rooms to be fully updated.
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* Prefer not to call this as part of the bridge's normal operation.
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*/
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async function syncSpaceFully(guildID) {
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/** @ts-ignore @type {DiscordTypes.APIGuild} */
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const guild = discord.guilds.get(guildID)
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assert.ok(guild)
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const row = select("guild_space", ["space_id", "privacy_level"], {guild_id: guildID}).get()
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if (!row) {
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const guildKState = await guildToKState(guild, createRoom.DEFAULT_PRIVACY_LEVEL)
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const spaceID = await createSpace(guild, guildKState)
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return spaceID // Naturally, the newly created space is already up to date, so we can always skip syncing here.
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}
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const {space_id: spaceID, privacy_level} = row
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console.log(`[space sync] to matrix: ${guild.name}`)
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const guildKState = await guildToKState(guild, privacy_level)
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// sync guild state to space
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const spaceKState = await createRoom.roomToKState(spaceID)
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const spaceDiff = ks.diffKState(spaceKState, guildKState)
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await createRoom.applyKStateDiffToRoom(spaceID, spaceDiff)
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/** @type {string[]} room IDs */
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let childRooms = []
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/** @type {string | undefined} */
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let nextBatch = undefined
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do {
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/** @type {Ty.HierarchyPagination<Ty.R.Hierarchy>} */
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const res = await api.getHierarchy(spaceID, {from: nextBatch})
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childRooms.push(...res.rooms.map(room => room.room_id))
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nextBatch = res.next_batch
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} while (nextBatch)
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for (const roomID of childRooms) {
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const channelID = select("channel_room", "channel_id", {room_id: roomID}).pluck().get()
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if (!channelID) continue
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if (discord.channels.has(channelID)) {
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await createRoom.syncRoom(channelID)
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} else {
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await createRoom.unbridgeDeletedChannel(channelID, guildID)
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}
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}
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return spaceID
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}
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/**
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* @param {DiscordTypes.GatewayGuildEmojisUpdateDispatchData | DiscordTypes.GatewayGuildStickersUpdateDispatchData} data
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* @param {boolean} checkBeforeSync false to always send new state, true to check the current state and only apply if state would change
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*/
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async function syncSpaceExpressions(data, checkBeforeSync) {
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// No need for kstate here. Each of these maps to a single state event, which will always overwrite what was there before. I can just send the state event.
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const spaceID = select("guild_space", "space_id", {guild_id: data.guild_id}).pluck().get()
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if (!spaceID) return
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/**
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* @typedef {DiscordTypes.GatewayGuildEmojisUpdateDispatchData & DiscordTypes.GatewayGuildStickersUpdateDispatchData} Expressions
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* @param {string} spaceID
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* @param {Expressions extends any ? keyof Expressions : never} key
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* @param {string} eventKey
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* @param {typeof expression["emojisToState"] | typeof expression["stickersToState"]} fn
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*/
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async function update(spaceID, key, eventKey, fn) {
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if (!(key in data) || !data[key].length) return
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const content = await fn(data[key])
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if (checkBeforeSync) {
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let existing
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try {
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existing = await api.getStateEvent(spaceID, "im.ponies.room_emotes", eventKey)
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} catch (e) {
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// State event not found. This space doesn't have any existing emojis. We create a dummy empty event for comparison's sake.
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existing = fn([])
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}
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if (isDeepStrictEqual(existing, content)) return
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}
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api.sendState(spaceID, "im.ponies.room_emotes", eventKey, content)
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}
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update(spaceID, "emojis", "moe.cadence.ooye.pack.emojis", expression.emojisToState)
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update(spaceID, "stickers", "moe.cadence.ooye.pack.stickers", expression.stickersToState)
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}
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module.exports.createSpace = createSpace
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module.exports.ensureSpace = ensureSpace
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module.exports.syncSpace = syncSpace
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module.exports.syncSpaceFully = syncSpaceFully
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module.exports.guildToKState = guildToKState
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module.exports.syncSpaceExpressions = syncSpaceExpressions
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