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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,41 +1,52 @@ | ||
| import React from 'react'; | ||
| import { Mutex } from 'async-mutex'; | ||
| import { create } from 'zustand'; | ||
| import { log } from '../../classes/Constants'; | ||
| import { ISettings, loadSettings } from '../../Settings'; | ||
| import { ISettings, loadSettings, saveSettings } from '../../Settings'; | ||
|
|
||
| const fetchingSettings = new Mutex(); | ||
| let fetchedSettings: ISettings|undefined; | ||
|
|
||
| /** | ||
| * This hooks fetches settings only once, even if it's used in multiple components | ||
| * @returns settings | ||
| */ | ||
| export const useSettings = () => | ||
| interface SettingsState | ||
| { | ||
| const [settings, setSettings] = React.useState<ISettings>(); | ||
| settings?: ISettings; | ||
| isLoading: boolean; | ||
| isSaving: boolean; | ||
| errorMsg?: string; | ||
| loadSettings: ()=>void; | ||
| saveSettings: (settings: Partial<ISettings>)=>void; | ||
| } | ||
|
|
||
| React.useEffect(()=>{ | ||
| (async ()=>{ | ||
| if(fetchingSettings.isLocked()) // Some other component is already fetching the settings? | ||
| { | ||
| await fetchingSettings.waitForUnlock(); | ||
| setSettings(fetchedSettings); | ||
| } | ||
| else if(!fetchedSettings) // We need to fetch the settings | ||
| { | ||
| await fetchingSettings.runExclusive(async ()=>{ | ||
| try { | ||
| fetchedSettings = await loadSettings(); | ||
| setSettings(fetchedSettings); | ||
| } catch(error) { | ||
| log('error', 'Failed to load settings.', error); | ||
| } | ||
| }); | ||
| export const useSettings = create<SettingsState>()((set, get, store) => ({ | ||
| isLoading: false, | ||
| isSaving: false, | ||
| loadSettings: async ()=>{ | ||
| if(!get().isLoading) | ||
| { | ||
| log('debug', 'Load settings'); | ||
| try { | ||
| set({isLoading: true, errorMsg: undefined}); | ||
| set({settings: await loadSettings()}); | ||
| } catch(error) { | ||
| console.error('Failed to load settings.', error); | ||
| set({errorMsg: `Failed to load settings. ${String(error)}`}); | ||
| } finally { | ||
| set({isLoading: false}); | ||
| } | ||
| else // We already have loaded the settings | ||
| setSettings(fetchedSettings); | ||
| })(); | ||
| }, []); | ||
| } | ||
| }, | ||
| saveSettings: async (settings)=>{ | ||
| log('debug', 'Saving settings', settings); | ||
| try { | ||
| set({isSaving: true, errorMsg: undefined}); | ||
| await saveSettings(settings); | ||
|
|
||
| if(get().settings) // We already have settings loaded? | ||
| set(state => ({settings: {...state.settings!, ...settings}})); // Merge new settings with the original | ||
| else | ||
| get().loadSettings(); // Load all settings | ||
| } catch(error) { | ||
| console.error('Failed to save settings.', error); | ||
| set({errorMsg: `Failed to save settings. ${String(error)}`}); | ||
| } finally { | ||
| set({isSaving: false}); | ||
| } | ||
| }, | ||
| })); | ||
|
|
||
| return settings; | ||
| }; | ||
| export default useSettings; |
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