216 lines
8 KiB
JavaScript
216 lines
8 KiB
JavaScript
// @ts-check
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const assert = require("assert").strict
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const DiscordTypes = require("discord-api-types/v10")
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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("../converters/expression")} */
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const expression = sync.require("../converters/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 {import("discord-api-types/v10").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: "private_chat", // cannot join space unless invited
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visibility: "private",
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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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*/
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async function guildToKState(guild) {
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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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let history_visibility = "invited"
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if (guild["thread_metadata"]) history_visibility = "world_readable"
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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: "can_join"}, // guests can join space if other conditions are met
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"m.room.history_visibility/": {history_visibility: "invited"} // any events sent after user was invited are visible
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}
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return guildKState
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}
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/**
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* @param {string} guildID
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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(guildID, shouldActuallySync) {
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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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if (inflightSpaceCreate.has(guildID)) {
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await inflightSpaceCreate.get(guildID) // 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 spaceID = select("guild_space", "space_id", "WHERE guild_id = ?").pluck().get(guildID)
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if (!spaceID) {
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const creation = (async () => {
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const guildKState = await guildToKState(guild)
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const spaceID = await createSpace(guild, guildKState)
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inflightSpaceCreate.delete(guildID)
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return spaceID
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})()
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inflightSpaceCreate.set(guildID, 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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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) // 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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/** Ensures the space exists. If it doesn't, creates the space with an accurate initial state. */
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function ensureSpace(guildID) {
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return _syncSpace(guildID, false)
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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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function syncSpace(guildID) {
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return _syncSpace(guildID, 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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* Should not need to be called 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 spaceID = select("guild_space", "space_id", "WHERE guild_id = ?").pluck().get(guildID)
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const guildKState = await guildToKState(guild)
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if (!spaceID) {
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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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console.log(`[space sync] to matrix: ${guild.name}`)
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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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const childRooms = ks.kstateToState(spaceKState).filter(({type, content}) => {
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return type === "m.space.child" && "via" in content
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}).map(({state_key}) => state_key)
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for (const roomID of childRooms) {
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const channelID = select("channel_room", "channel_id", "WHERE room_id = ?").pluck().get(roomID)
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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 {import("discord-api-types/v10").GatewayGuildEmojisUpdateDispatchData | import("discord-api-types/v10").GatewayGuildStickersUpdateDispatchData} data
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*/
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async function syncSpaceExpressions(data) {
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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", "WHERE guild_id = ?").pluck().get(data.guild_id)
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if (!spaceID) return
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if ("emojis" in data && data.emojis.length) {
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const content = await expression.emojisToState(data.emojis)
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api.sendState(spaceID, "im.ponies.room_emotes", "moe.cadence.ooye.pack.emojis", content)
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}
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if ("stickers" in data && data.stickers.length) {
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const content = await expression.stickersToState(data.stickers)
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api.sendState(spaceID, "im.ponies.room_emotes", "moe.cadence.ooye.pack.stickers", content)
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}
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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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