88 lines
2.6 KiB
TypeScript
88 lines
2.6 KiB
TypeScript
import { useEffect, useState } from 'react';
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import type { AppSettings } from '../../shared/types';
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import * as api from '../api';
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let settingsCache: AppSettings | null = null;
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let settingsError: Error | null = null;
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let subscribers: Set<(settings: AppSettings | null, error: Error | null) => void> = new Set();
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let isFetching = false;
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export function useSettings() {
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const [settings, setSettings] = useState<AppSettings | null>(settingsCache);
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const [error, setError] = useState<Error | null>(settingsError);
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useEffect(() => {
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if (settingsCache) {
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setSettings(settingsCache);
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}
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if (settingsError) {
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setError(settingsError);
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}
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const handleUpdate = (newSettings: AppSettings | null, newError: Error | null) => {
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setSettings(newSettings);
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setError(newError);
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};
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subscribers.add(handleUpdate);
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if (!settingsCache && !isFetching) {
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isFetching = true;
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settingsError = null;
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api.getSettings()
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.then((data) => {
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settingsCache = data;
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settingsError = null;
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subscribers.forEach(sub => sub(data, null));
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})
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.catch((err) => {
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settingsError = err instanceof Error ? err : new Error(String(err));
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subscribers.forEach(sub => sub(settingsCache, settingsError));
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})
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.finally(() => {
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isFetching = false;
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});
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}
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return () => {
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subscribers.delete(handleUpdate);
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};
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}, []);
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const refreshSettings = async () => {
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isFetching = true;
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settingsError = null;
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subscribers.forEach(sub => sub(settingsCache, null));
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try {
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const data = await api.getSettings();
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settingsCache = data;
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settingsError = null;
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subscribers.forEach(sub => sub(data, null));
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return data;
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} catch (err) {
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settingsError = err instanceof Error ? err : new Error(String(err));
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subscribers.forEach(sub => sub(settingsCache, settingsError));
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throw settingsError;
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} finally {
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isFetching = false;
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}
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};
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return {
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settings,
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error,
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isLoading: !settings && isFetching && !error,
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showSponsorInfo: settings?.showSponsorInfo ?? true,
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refreshSettings,
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};
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}
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/** @internal For testing only */
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export function _resetSettingsCache() {
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settingsCache = null;
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settingsError = null;
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isFetching = false;
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subscribers.clear();
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}
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