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/*
* Vencord, a modification for Discord's desktop app
* Copyright (c) 2022 Vendicated and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import IpcEvents from "@utils/IpcEvents";
import Logger from "@utils/Logger";
import { mergeDefaults } from "@utils/misc";
import { DefinedSettings, OptionType, SettingsChecks, SettingsDefinition } from "@utils/types";
import { React } from "@webpack/common";
import plugins from "~plugins";
const logger = new Logger("Settings");
export interface Settings {
notifyAboutUpdates: boolean;
useQuickCss: boolean;
enableReactDevtools: boolean;
themeLinks: string[];
frameless: boolean;
plugins: {
[plugin: string]: {
enabled: boolean;
[setting: string]: any;
};
};
}
const DefaultSettings: Settings = {
notifyAboutUpdates: true,
useQuickCss: true,
themeLinks: [],
enableReactDevtools: false,
frameless: false,
plugins: {}
};
try {
var settings = JSON.parse(VencordNative.ipc.sendSync(IpcEvents.GET_SETTINGS)) as Settings;
mergeDefaults(settings, DefaultSettings);
} catch (err) {
var settings = mergeDefaults({} as Settings, DefaultSettings);
logger.error("An error occurred while loading the settings. Corrupt settings file?\n", err);
}
type SubscriptionCallback = ((newValue: any, path: string) => void) & { _path?: string; };
const subscriptions = new Set<SubscriptionCallback>();
const proxyCache = {} as Record<string, any>;
// Wraps the passed settings object in a Proxy to nicely handle change listeners and default values
function makeProxy(settings: any, root = settings, path = ""): Settings {
return proxyCache[path] ??= new Proxy(settings, {
get(target, p: string) {
const v = target[p];
// using "in" is important in the following cases to properly handle falsy or nullish values
if (!(p in target)) {
// Return empty for plugins with no settings
if (path === "plugins" && p in plugins)
return target[p] = makeProxy({
enabled: plugins[p].required ?? false
}, root, `plugins.${p}`);
// Since the property is not set, check if this is a plugin's setting and if so, try to resolve
// the default value.
if (path.startsWith("plugins.")) {
const plugin = path.slice("plugins.".length);
if (plugin in plugins) {
const setting = plugins[plugin].options?.[p];
if (!setting) return v;
if ("default" in setting)
// normal setting with a default value
return (target[p] = setting.default);
if (setting.type === OptionType.SELECT) {
const def = setting.options.find(o => o.default);
if (def)
target[p] = def.value;
return def?.value;
}
}
}
return v;
}
// Recursively proxy Objects with the updated property path
if (typeof v === "object" && !Array.isArray(v) && v !== null)
return makeProxy(v, root, `${path}${path && "."}${p}`);
// primitive or similar, no need to proxy further
return v;
},
set(target, p: string, v) {
// avoid unnecessary updates to React Components and other listeners
if (target[p] === v) return true;
target[p] = v;
// Call any listeners that are listening to a setting of this path
const setPath = `${path}${path && "."}${p}`;
for (const subscription of subscriptions) {
if (!subscription._path || subscription._path === setPath) {
subscription(v, setPath);
}
}
// And don't forget to persist the settings!
VencordNative.ipc.invoke(IpcEvents.SET_SETTINGS, JSON.stringify(root, null, 4));
return true;
}
});
}
/**
* Same as {@link Settings} but unproxied. You should treat this as readonly,
* as modifying properties on this will not save to disk or call settings
* listeners.
* WARNING: default values specified in plugin.options will not be ensured here. In other words,
* settings for which you specified a default value may be uninitialised. If you need proper
* handling for default values, use {@link Settings}
*/
export const PlainSettings = settings;
/**
* A smart settings object. Altering props automagically saves
* the updated settings to disk.
* This recursively proxies objects. If you need the object non proxied, use {@link PlainSettings}
*/
export const Settings = makeProxy(settings);
/**
* Settings hook for React components. Returns a smart settings
* object that automagically triggers a rerender if any properties
* are altered
* @param paths An optional list of paths to whitelist for rerenders
* @returns Settings
*/
// TODO: Representing paths as essentially "string[].join('.')" wont allow dots in paths, change to "paths?: string[][]" later
export function useSettings(paths?: string[]) {
const [, forceUpdate] = React.useReducer(() => ({}), {});
const onUpdate: SubscriptionCallback = paths
? (value, path) => paths.includes(path) && forceUpdate()
: forceUpdate;
React.useEffect(() => {
subscriptions.add(onUpdate);
return () => void subscriptions.delete(onUpdate);
}, []);
return Settings;
}
// Resolves a possibly nested prop in the form of "some.nested.prop" to type of T.some.nested.prop
type ResolvePropDeep<T, P> = P extends "" ? T :
P extends `${infer Pre}.${infer Suf}` ?
Pre extends keyof T ? ResolvePropDeep<T[Pre], Suf> : never : P extends keyof T ? T[P] : never;
/**
* Add a settings listener that will be invoked whenever the desired setting is updated
* @param path Path to the setting that you want to watch, for example "plugins.Unindent.enabled" will fire your callback
* whenever Unindent is toggled. Pass an empty string to get notified for all changes
* @param onUpdate Callback function whenever a setting matching path is updated. It gets passed the new value and the path
* to the updated setting. This path will be the same as your path argument, unless it was an empty string.
*
* @example addSettingsListener("", (newValue, path) => console.log(`${path} is now ${newValue}`))
* addSettingsListener("plugins.Unindent.enabled", v => console.log("Unindent is now", v ? "enabled" : "disabled"))
*/
export function addSettingsListener<Path extends keyof Settings>(path: Path, onUpdate: (newValue: Settings[Path], path: Path) => void): void;
export function addSettingsListener<Path extends string>(path: Path, onUpdate: (newValue: Path extends "" ? any : ResolvePropDeep<Settings, Path>, path: Path extends "" ? string : Path) => void): void;
export function addSettingsListener(path: string, onUpdate: (newValue: any, path: string) => void) {
(onUpdate as SubscriptionCallback)._path = path;
subscriptions.add(onUpdate);
}
export function migratePluginSettings(name: string, ...oldNames: string[]) {
const { plugins } = settings;
if (name in plugins) return;
for (const oldName of oldNames) {
if (oldName in plugins) {
logger.info(`Migrating settings from old name ${oldName} to ${name}`);
plugins[name] = plugins[oldName];
delete plugins[oldName];
VencordNative.ipc.invoke(
IpcEvents.SET_SETTINGS,
JSON.stringify(settings, null, 4)
);
break;
}
}
}
export function definePluginSettings<D extends SettingsDefinition, C extends SettingsChecks<D>>(def: D, checks?: C) {
const definedSettings: DefinedSettings<D> = {
get store() {
if (!definedSettings.pluginName) throw new Error("Cannot access settings before plugin is initialized");
return Settings.plugins[definedSettings.pluginName] as any;
},
use: settings => useSettings(
settings?.map(name => `plugins.${definedSettings.pluginName}.${name}`)
).plugins[definedSettings.pluginName] as any,
def,
checks: checks ?? {},
pluginName: "",
};
return definedSettings;
}
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