out-of-your-element/d2m/actions/create-space.js

163 lines
5.7 KiB
JavaScript

// @ts-check
const assert = require("assert").strict
const DiscordTypes = require("discord-api-types/v10")
const reg = require("../../matrix/read-registration")
const passthrough = require("../../passthrough")
const { discord, sync, db } = passthrough
/** @type {import("../../matrix/api")} */
const api = sync.require("../../matrix/api")
/** @type {import("../../matrix/file")} */
const file = sync.require("../../matrix/file")
/** @type {import("./create-room")} */
const createRoom = sync.require("./create-room")
/** @type {import("../../matrix/kstate")} */
const ks = sync.require("../../matrix/kstate")
/**
* @param {import("discord-api-types/v10").RESTGetAPIGuildResult} guild
* @param {any} kstate
*/
async function createSpace(guild, kstate) {
const name = kstate["m.room.name/"].name
const topic = kstate["m.room.topic/"]?.topic || undefined
assert(name)
const roomID = await createRoom.postApplyPowerLevels(kstate, async kstate => {
return api.createRoom({
name,
preset: "private_chat", // cannot join space unless invited
visibility: "private",
power_level_content_override: {
events_default: 100, // space can only be managed by bridge
invite: 0 // any existing member can invite others
},
invite: reg.ooye.invite,
topic,
creation_content: {
type: "m.space"
},
initial_state: ks.kstateToState(kstate)
})
})
db.prepare("INSERT INTO guild_space (guild_id, space_id) VALUES (?, ?)").run(guild.id, roomID)
return roomID
}
/**
* @param {DiscordTypes.APIGuild} guild]
*/
async function guildToKState(guild) {
const avatarEventContent = {}
if (guild.icon) {
avatarEventContent.discord_path = file.guildIcon(guild)
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
}
let history_visibility = "invited"
if (guild["thread_metadata"]) history_visibility = "world_readable"
const guildKState = {
"m.room.name/": {name: guild.name},
"m.room.avatar/": avatarEventContent,
"m.room.guest_access/": {guest_access: "can_join"}, // guests can join space if other conditions are met
"m.room.history_visibility/": {history_visibility: "invited"} // any events sent after user was invited are visible
}
return guildKState
}
/** Efficiently update space name, space avatar, and child room avatars. */
async function syncSpace(guildID) {
/** @ts-ignore @type {DiscordTypes.APIGuild} */
const guild = discord.guilds.get(guildID)
assert.ok(guild)
/** @type {string?} */
const spaceID = db.prepare("SELECT space_id from guild_space WHERE guild_id = ?").pluck().get(guildID)
const guildKState = await guildToKState(guild)
if (!spaceID) {
const spaceID = await createSpace(guild, guildKState)
return spaceID // Naturally, the newly created space is already up to date, so we can always skip syncing here.
}
console.log(`[space sync] to matrix: ${guild.name}`)
// sync guild state to space
const spaceKState = await createRoom.roomToKState(spaceID)
const spaceDiff = ks.diffKState(spaceKState, guildKState)
await createRoom.applyKStateDiffToRoom(spaceID, spaceDiff)
// guild icon was changed, so room avatars need to be updated as well as the space ones
// doing it this way rather than calling syncRoom for great efficiency gains
const newAvatarState = spaceDiff["m.room.avatar/"]
if (guild.icon && newAvatarState?.url) {
// don't try to update rooms with custom avatars though
const roomsWithCustomAvatars = db.prepare("SELECT room_id FROM channel_room WHERE custom_avatar IS NOT NULL").pluck().all()
const childRooms = ks.kstateToState(spaceKState).filter(({type, state_key, content}) => {
return type === "m.space.child" && "via" in content && !roomsWithCustomAvatars.includes(state_key)
}).map(({state_key}) => state_key)
for (const roomID of childRooms) {
const avatarEventContent = await api.getStateEvent(roomID, "m.room.avatar", "")
if (avatarEventContent.url !== newAvatarState.url) {
await api.sendState(roomID, "m.room.avatar", "", newAvatarState)
}
}
}
return spaceID
}
/**
* Inefficiently force the space and its existing child rooms to be fully updated.
* Should not need to be called as part of the bridge's normal operation.
*/
async function syncSpaceFully(guildID) {
/** @ts-ignore @type {DiscordTypes.APIGuild} */
const guild = discord.guilds.get(guildID)
assert.ok(guild)
/** @type {string?} */
const spaceID = db.prepare("SELECT space_id from guild_space WHERE guild_id = ?").pluck().get(guildID)
const guildKState = await guildToKState(guild)
if (!spaceID) {
const spaceID = await createSpace(guild, guildKState)
return spaceID // Naturally, the newly created space is already up to date, so we can always skip syncing here.
}
console.log(`[space sync] to matrix: ${guild.name}`)
// sync guild state to space
const spaceKState = await createRoom.roomToKState(spaceID)
const spaceDiff = ks.diffKState(spaceKState, guildKState)
await createRoom.applyKStateDiffToRoom(spaceID, spaceDiff)
const childRooms = ks.kstateToState(spaceKState).filter(({type, content}) => {
return type === "m.space.child" && "via" in content
}).map(({state_key}) => state_key)
for (const roomID of childRooms) {
const channelID = db.prepare("SELECT channel_id FROM channel_room WHERE room_id = ?").pluck().get(roomID)
if (!channelID) continue
if (discord.channels.has(channelID)) {
await createRoom.syncRoom(channelID)
} else {
await createRoom.unbridgeDeletedChannel(channelID, guildID)
}
}
return spaceID
}
module.exports.createSpace = createSpace
module.exports.syncSpace = syncSpace
module.exports.syncSpaceFully = syncSpaceFully
module.exports.guildToKState = guildToKState