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import { getPermission, listenEvent, Member, Role } from "@fosscord/util";
import { LazyRequest } from "../schema/LazyRequest";
import { Send } from "../util/Send";
import { OPCODES } from "../util/Constants";
import { WebSocket, Payload, handlePresenceUpdate } from "@fosscord/gateway";
import { check } from "./instanceOf";
import { getRepository } from "typeorm";
// TODO: only show roles/members that have access to this channel
// TODO: config: to list all members (even those who are offline) sorted by role, or just those who are online
// TODO: rewrite typeorm
async function getMembers(guild_id: string, range: [number, number]) {
if (!Array.isArray(range) || range.length !== 2) {
throw new Error("range is not a valid array");
}
// TODO: wait for typeorm to implement ordering for .find queries https://github.com/typeorm/typeorm/issues/2620
let members = await getRepository(Member)
.createQueryBuilder("member")
.where("member.guild_id = :guild_id", { guild_id })
.leftJoinAndSelect("member.roles", "role")
.leftJoinAndSelect("member.user", "user")
.leftJoinAndSelect("user.sessions", "session")
.addSelect(
"CASE WHEN session.status = 'offline' THEN 0 ELSE 1 END",
"_status"
)
.orderBy("role.position", "DESC")
.addOrderBy("_status", "DESC")
.addOrderBy("user.username", "ASC")
.offset(Number(range[0]) || 0)
.limit(Number(range[1]) || 100)
.getMany();
const groups = [] as any[];
const items = [];
const member_roles = members
.map((m) => m.roles)
.flat()
.unique((r: Role) => r.id);
const offlineItems = [];
for (const role of member_roles) {
// @ts-ignore
const [role_members, other_members] = partition(members, (m: Member) =>
m.roles.find((r) => r.id === role.id)
);
const group = {
count: role_members.length,
id: role.id === guild_id ? "online" : role.id,
};
items.push({ group });
groups.push(group);
for (const member of role_members) {
const roles = member.roles
.filter((x: Role) => x.id !== guild_id)
.map((x: Role) => x.id);
const session = member.user.sessions.first();
// TODO: properly mock/hide offline/invisible status
const item = {
member: {
...member,
roles,
user: { ...member.user, sessions: undefined },
presence: {
...session,
activities: session?.activities || [],
user: { id: member.user.id },
},
},
}
if (!member?.user?.sessions || !member.user.sessions.length) {
offlineItems.push(item);
group.count--;
continue;
}
items.push(item);
}
members = other_members;
}
if (offlineItems.length) {
const group = {
count: offlineItems.length,
id: "offline",
};
items.push({ group });
groups.push(group);
items.push(...offlineItems);
}
return {
items,
groups,
range,
members: items.map((x) => 'member' in x ? x.member : undefined).filter(x => !!x),
};
}
export async function onLazyRequest(this: WebSocket, { d }: Payload) {
// TODO: check data
check.call(this, LazyRequest, d);
const { guild_id, typing, channels, activities } = d as LazyRequest;
const channel_id = Object.keys(channels || {}).first();
if (!channel_id) return;
const permissions = await getPermission(this.user_id, guild_id, channel_id);
permissions.hasThrow("VIEW_CHANNEL");
const ranges = channels![channel_id];
if (!Array.isArray(ranges)) throw new Error("Not a valid Array");
const member_count = await Member.count({ where: { guild_id } });
const ops = await Promise.all(ranges.map((x) => getMembers(guild_id, x)));
// TODO: unsubscribe member_events that are not in op.members
ops.forEach((op) => {
op.members.forEach(async (member) => {
if (this.events[member.user.id]) return; // already subscribed as friend
if (this.member_events[member.user.id]) return; // already subscribed in member list
this.member_events[member.user.id] = await listenEvent(
member.user.id,
handlePresenceUpdate.bind(this),
this.listen_options
);
});
});
return Send(this, {
op: OPCODES.Dispatch,
s: this.sequence++,
t: "GUILD_MEMBER_LIST_UPDATE",
d: {
ops: ops.map((x) => ({
items: x.items,
op: "SYNC",
range: x.range,
})),
online_count: member_count,
member_count,
id: "everyone",
guild_id,
groups: ops
.map((x) => x.groups)
.flat()
.unique(),
},
});
}
function partition<T>(array: T[], isValid: Function) {
// @ts-ignore
return array.reduce(
// @ts-ignore
([pass, fail], elem) => {
return isValid(elem)
? [[...pass, elem], fail]
: [pass, [...fail, elem]];
},
[[], []]
);
}
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