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January 28, 2023 17:52
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| const TAG = 'GlobalMachine'; | |
| const AsyncStorage = localStorage; | |
| Machine( | |
| { | |
| id: TAG, | |
| initial: 'idle', | |
| context: { | |
| user: null, | |
| }, | |
| states: { | |
| idle: { | |
| entry: ['onIdle'], | |
| on: { | |
| AUTO_LOGIN: 'loading', | |
| }, | |
| }, | |
| loading: { | |
| id: 'loading', | |
| entry: ['onLoading'], | |
| after: { | |
| DEFAULT_TIMEOUT: 'unauthorized', | |
| }, | |
| invoke: { | |
| src: 'loadUser', | |
| onDone: { | |
| target: 'authorized', | |
| actions: 'setUser', | |
| }, | |
| onError: 'unauthorized', | |
| }, | |
| }, | |
| authorized: { | |
| initial: 'idle', | |
| entry: ['onAuthorized'], | |
| on: { | |
| LOGOUT: 'unauthorized', | |
| REFRESH: '.refreshing', | |
| }, | |
| states: { | |
| idle: {}, | |
| refreshing: { | |
| invoke: { | |
| src: 'loadUser', | |
| onDone: { | |
| target: 'idle', | |
| actions: 'setUser', | |
| }, | |
| onError: '#unauthorized' | |
| }, | |
| }, | |
| }, | |
| }, | |
| unauthorized: { | |
| id: 'unauthorized', | |
| initial: 'idle', | |
| entry: ['onUnauthorized', 'removeUser'], | |
| invoke: { | |
| src: 'cleanup', | |
| }, | |
| on: { | |
| LOGIN: { | |
| target: '.validating', | |
| }, | |
| }, | |
| states: { | |
| idle: {}, | |
| validating: { | |
| invoke: { | |
| src: 'saveUser', | |
| onDone: '#loading', | |
| onError: 'idle', | |
| }, | |
| }, | |
| }, | |
| }, | |
| }, | |
| }, | |
| { | |
| actions: { | |
| setUser: assign({ user: (_context, event) => event.data }), | |
| removeUser: assign({ user: (_context, _event) => null }), | |
| onIdle: () => { | |
| console.log(TAG, 'onIdle'); | |
| }, | |
| onLoading: () => { | |
| console.log(TAG, 'onLoading'); | |
| }, | |
| onAuthorized: () => { | |
| console.log(TAG, 'onAuthorized'); | |
| }, | |
| onUnauthorized: () => { | |
| console.log(TAG, 'onUnauthorized'); | |
| }, | |
| }, | |
| services: { | |
| loadUser: async () => { | |
| const stringifiedUser = await AsyncStorage.getItem('user'); | |
| if (!stringifiedUser) { | |
| throw new Error('user is not exist'); | |
| } | |
| return JSON.parse(stringifiedUser); | |
| }, | |
| saveUser: async (_context, event) => { | |
| await AsyncStorage.setItem('user', JSON.stringify(event.user)); | |
| }, | |
| cleanup: () => AsyncStorage.clear(), | |
| }, | |
| delays: { | |
| DEFAULT_TIMEOUT: 3 * 1000, | |
| }, | |
| }, | |
| ); |
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