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Move onboarding state to new persistence + reducer context (#1835)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| import React from 'react' | ||
| import * as persisted from '#/state/persisted' | ||
| import {track} from '#/lib/analytics/analytics' | ||
|
|
||
| export const OnboardingScreenSteps = { | ||
| Welcome: 'Welcome', | ||
| RecommendedFeeds: 'RecommendedFeeds', | ||
| RecommendedFollows: 'RecommendedFollows', | ||
| Home: 'Home', | ||
| } as const | ||
|
|
||
| type OnboardingStep = | ||
| (typeof OnboardingScreenSteps)[keyof typeof OnboardingScreenSteps] | ||
| const OnboardingStepsArray = Object.values(OnboardingScreenSteps) | ||
|
|
||
| type Action = | ||
| | {type: 'set'; step: OnboardingStep} | ||
| | {type: 'next'; currentStep?: OnboardingStep} | ||
| | {type: 'start'} | ||
| | {type: 'finish'} | ||
| | {type: 'skip'} | ||
|
|
||
| export type StateContext = persisted.Schema['onboarding'] & { | ||
| isComplete: boolean | ||
| isActive: boolean | ||
| } | ||
| export type DispatchContext = (action: Action) => void | ||
|
|
||
| const stateContext = React.createContext<StateContext>( | ||
| compute(persisted.defaults.onboarding), | ||
| ) | ||
| const dispatchContext = React.createContext<DispatchContext>((_: Action) => {}) | ||
|
|
||
| function reducer(state: StateContext, action: Action): StateContext { | ||
| switch (action.type) { | ||
| case 'set': { | ||
| if (OnboardingStepsArray.includes(action.step)) { | ||
| persisted.write('onboarding', {step: action.step}) | ||
| return compute({...state, step: action.step}) | ||
| } | ||
| return state | ||
| } | ||
| case 'next': { | ||
| const currentStep = action.currentStep || state.step | ||
| let nextStep = 'Home' | ||
| if (currentStep === 'Welcome') { | ||
| nextStep = 'RecommendedFeeds' | ||
| } else if (currentStep === 'RecommendedFeeds') { | ||
| nextStep = 'RecommendedFollows' | ||
| } else if (currentStep === 'RecommendedFollows') { | ||
| nextStep = 'Home' | ||
| } | ||
| persisted.write('onboarding', {step: nextStep}) | ||
| return compute({...state, step: nextStep}) | ||
| } | ||
| case 'start': { | ||
| track('Onboarding:Begin') | ||
| persisted.write('onboarding', {step: 'Welcome'}) | ||
| return compute({...state, step: 'Welcome'}) | ||
| } | ||
| case 'finish': { | ||
| track('Onboarding:Complete') | ||
| persisted.write('onboarding', {step: 'Home'}) | ||
| return compute({...state, step: 'Home'}) | ||
| } | ||
| case 'skip': { | ||
| track('Onboarding:Skipped') | ||
| persisted.write('onboarding', {step: 'Home'}) | ||
| return compute({...state, step: 'Home'}) | ||
| } | ||
| default: { | ||
| throw new Error('Invalid action') | ||
| } | ||
| } | ||
| } | ||
|
|
||
| export function Provider({children}: React.PropsWithChildren<{}>) { | ||
| const [state, dispatch] = React.useReducer( | ||
| reducer, | ||
| compute(persisted.get('onboarding')), | ||
| ) | ||
|
|
||
| React.useEffect(() => { | ||
| return persisted.onUpdate(() => { | ||
| dispatch({ | ||
| type: 'set', | ||
| step: persisted.get('onboarding').step as OnboardingStep, | ||
| }) | ||
| }) | ||
| }, [dispatch]) | ||
|
|
||
| return ( | ||
| <stateContext.Provider value={state}> | ||
| <dispatchContext.Provider value={dispatch}> | ||
| {children} | ||
| </dispatchContext.Provider> | ||
| </stateContext.Provider> | ||
| ) | ||
| } | ||
|
|
||
| export function useOnboardingState() { | ||
| return React.useContext(stateContext) | ||
| } | ||
|
|
||
| export function useOnboardingDispatch() { | ||
| return React.useContext(dispatchContext) | ||
| } | ||
|
|
||
| export function isOnboardingActive() { | ||
| return compute(persisted.get('onboarding')).isActive | ||
| } | ||
|
|
||
| function compute(state: persisted.Schema['onboarding']): StateContext { | ||
| return { | ||
| ...state, | ||
| isActive: state.step !== 'Home', | ||
| isComplete: state.step === 'Home', | ||
| } | ||
| } |
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