for-legacy-web/src/context/revoltjs/hooks.ts

103 lines
3.2 KiB
TypeScript

import { Client, PermissionCalculator } from "revolt.js";
import { useContext, useEffect, useState } from "preact/hooks";
//#region Hooks v1 (deprecated)
import { AppContext } from "./RevoltClient";
export interface HookContext {
client: Client;
forceUpdate: () => void;
}
export function useForceUpdate(context?: HookContext): HookContext {
const client = useContext(AppContext);
if (context) return context;
const H = useState(0);
let updateState: (_: number) => void;
if (Array.isArray(H)) {
const [, u] = H;
updateState = u;
} else {
console.warn("Failed to construct using useState.");
updateState = () => {};
}
return { client, forceUpdate: () => updateState(Math.random()) };
}
export function useUserPermission(id: string, context?: HookContext) {
const ctx = useForceUpdate(context);
const mutation = (target: string) => target === id && ctx.forceUpdate();
useEffect(() => {
ctx.client.users.addListener("update", mutation);
return () => ctx.client.users.removeListener("update", mutation);
}, [id]);
const calculator = new PermissionCalculator(ctx.client);
return calculator.forUser(id);
}
export function useChannelPermission(id: string, context?: HookContext) {
const ctx = useForceUpdate(context);
const channel = ctx.client.channels.get(id);
const server =
channel &&
(channel.channel_type === "TextChannel" ||
channel.channel_type === "VoiceChannel")
? channel.server
: undefined;
const mutation = (target: string) => target === id && ctx.forceUpdate();
const mutationServer = (target: string) =>
target === server && ctx.forceUpdate();
const mutationMember = (target: string) =>
target.substr(26) === ctx.client.user!._id && ctx.forceUpdate();
useEffect(() => {
ctx.client.channels.addListener("update", mutation);
if (server) {
ctx.client.servers.addListener("update", mutationServer);
ctx.client.members.addListener("update", mutationMember);
}
return () => {
ctx.client.channels.removeListener("update", mutation);
if (server) {
ctx.client.servers.removeListener("update", mutationServer);
ctx.client.members.removeListener("update", mutationMember);
}
};
}, [id]);
const calculator = new PermissionCalculator(ctx.client);
return calculator.forChannel(id);
}
export function useServerPermission(id: string, context?: HookContext) {
const ctx = useForceUpdate(context);
const mutation = (target: string) => target === id && ctx.forceUpdate();
const mutationMember = (target: string) =>
target.substr(26) === ctx.client.user!._id && ctx.forceUpdate();
useEffect(() => {
ctx.client.servers.addListener("update", mutation);
ctx.client.members.addListener("update", mutationMember);
return () => {
ctx.client.servers.removeListener("update", mutation);
ctx.client.members.removeListener("update", mutationMember);
};
}, [id]);
const calculator = new PermissionCalculator(ctx.client);
return calculator.forServer(id);
}
//#endregion