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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,169 @@ | ||
| import React, { createContext, useMemo, useReducer } from 'react' | ||
| import type { FC, Dispatch } from 'react' | ||
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| interface Currency { | ||
| code: string // USD | ||
| symbol: string // $ | ||
| } | ||
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| interface User { | ||
| id: string // user id | ||
| } | ||
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| interface BaseState { | ||
| locale: string // en-US | ||
| currency: Currency | ||
| country: string // BRA | ||
| channel: string | null | ||
| region: string | null | ||
| priceTable: string | null | ||
| postalCode: string | null | ||
| user: User | null | ||
| } | ||
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| type State = Record<string, any> & BaseState | ||
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| interface BaseContextValue extends BaseState { | ||
| setLocale: (locale: string) => void | ||
| setCurrency: (currency: Currency) => void | ||
| setCountry: (country: string) => void | ||
| setChannel: (channel: string | null) => void | ||
| setRegion: (region: string | null) => void | ||
| setPriceTable: (table: string | null) => void | ||
| setPostalCode: (postalCode: string | null) => void | ||
| setUser: (user: User) => void | ||
| } | ||
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| export type ContextValue = Record<string, any> & BaseContextValue | ||
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| type Action = | ||
| | { | ||
| type: 'SET_LOCALE' | ||
| data: string | ||
| } | ||
| | { | ||
| type: 'SET_CURRENCY' | ||
| data: Currency | ||
| } | ||
| | { | ||
| type: 'SET_COUNTRY' | ||
| data: string | ||
| } | ||
| | { | ||
| type: 'SET_CHANNEL' | ||
| data: string | null | ||
| } | ||
| | { | ||
| type: 'SET_REGION' | ||
| data: string | null | ||
| } | ||
| | { | ||
| type: 'SET_PRICE_TABLE' | ||
| data: string | null | ||
| } | ||
| | { | ||
| type: 'SET_POSTAL_CODE' | ||
| data: string | null | ||
| } | ||
| | { | ||
| type: 'SET_USER' | ||
| data: User | null | ||
| } | ||
| | { | ||
| type: string | ||
| data?: any | ||
| } | ||
|
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| export const Context = createContext<ContextValue | undefined>(undefined) | ||
| Context.displayName = 'StoreSessionContext' | ||
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| export type Actions = Record<string, (state: State, data?: any) => State> | ||
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| export type Effects = ( | ||
| dispatch: Dispatch<Action> | ||
| ) => Omit<ContextValue, keyof BaseContextValue> | ||
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| const baseInitialState: State = { | ||
| currency: { | ||
| code: 'USD', | ||
| symbol: '$', | ||
| }, | ||
| country: 'USA', | ||
| locale: 'en', | ||
| postalCode: null, | ||
| priceTable: null, | ||
| channel: null, | ||
| region: null, | ||
| user: null, | ||
| } | ||
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| const reducer = (actions: Actions) => { | ||
| const allActions: Actions = { | ||
| SET_LOCALE: (state, locale) => ({ ...state, locale }), | ||
| SET_CURRENCY: (state, currency) => ({ ...state, currency }), | ||
| SET_COUNTRY: (state, country) => ({ ...state, country }), | ||
| SET_CHANNEL: (state, channel) => ({ ...state, channel }), | ||
| SET_REGION: (state, region) => ({ ...state, region }), | ||
| SET_PRICE_TABLE: (state, table) => ({ ...state, table }), | ||
| SET_POSTAL_CODE: (state, postalCode) => ({ ...state, postalCode }), | ||
| SET_USER: (state, user) => ({ ...state, user }), | ||
| ...actions, | ||
| } | ||
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| return (state: State, { type, data }: Action) => { | ||
| const maybeAction = allActions[type] | ||
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| if (typeof maybeAction === 'function') { | ||
| return maybeAction(state, data) | ||
| } | ||
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| throw new Error('Unknown Session state') | ||
| } | ||
| } | ||
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| export type InitialState = Record<string, any> | ||
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| interface Props { | ||
| actions?: Actions | ||
| effects?: Effects | ||
| initialState?: InitialState | ||
| } | ||
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| const defaultEffects: Effects = () => ({}) | ||
|
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| export const Provider: FC<Props> = ({ | ||
| children, | ||
| actions = {}, | ||
| effects = defaultEffects, | ||
| initialState = {}, | ||
| }) => { | ||
| const [state, dispatch] = useReducer(reducer(actions), { | ||
| ...baseInitialState, | ||
| ...initialState, | ||
| }) | ||
|
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| const value = useMemo( | ||
| () => ({ | ||
| ...state, | ||
| ...effects(dispatch), | ||
| setLocale: (locale: string) => | ||
| dispatch({ type: 'SET_LOCALE', data: locale }), | ||
| setCurrency: (currency: Currency) => | ||
| dispatch({ type: 'SET_CURRENCY', data: currency }), | ||
| setCountry: (country: string) => | ||
| dispatch({ type: 'SET_COUNTRY', data: country }), | ||
| setChannel: (channel: string | null) => | ||
| dispatch({ type: 'SET_CHANNEL', data: channel }), | ||
| setRegion: (region: string | null) => | ||
| dispatch({ type: 'SET_REGION', data: region }), | ||
| setPriceTable: (table: string | null) => | ||
| dispatch({ type: 'SET_PRICE_TABLE', data: table }), | ||
| setPostalCode: (postalCode: string | null) => | ||
| dispatch({ type: 'SET_POSTAL_CODE', data: postalCode }), | ||
| setUser: (user: User) => dispatch({ type: 'SET_USER', data: user }), | ||
| }), | ||
| [effects, state] | ||
| ) | ||
|
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| return <Context.Provider value={value}>{children}</Context.Provider> | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
| import { Context } from './Provider' | ||
| import { useContext } from '../utils/useContext' | ||
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| export const useSession = () => useContext(Context) |
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