import React, { FC, useCallback, useMemo } from 'react' import { ThemeProvider } from 'next-themes' export interface State { displaySidebar: boolean displayDropdown: boolean displayModal: boolean sidebarView: string modalView: string userAvatar: string } const initialState = { displaySidebar: false, displayDropdown: false, displayModal: false, modalView: 'LOGIN_VIEW', sidebarView: 'CART_VIEW', userAvatar: '', } type Action = | { type: 'OPEN_SIDEBAR' } | { type: 'CLOSE_SIDEBAR' } | { type: 'OPEN_DROPDOWN' } | { type: 'CLOSE_DROPDOWN' } | { type: 'OPEN_MODAL' } | { type: 'CLOSE_MODAL' } | { type: 'SET_MODAL_VIEW' view: MODAL_VIEWS } | { type: 'SET_SIDEBAR_VIEW' view: SIDEBAR_VIEWS } | { type: 'SET_USER_AVATAR' value: string } type MODAL_VIEWS = | 'SIGNUP_VIEW' | 'LOGIN_VIEW' | 'FORGOT_VIEW' | 'NEW_SHIPPING_ADDRESS' | 'NEW_PAYMENT_METHOD' type SIDEBAR_VIEWS = 'CART_VIEW' | 'CHECKOUT_VIEW' | 'PAYMENT_METHOD_VIEW' export const UIContext = React.createContext(initialState) UIContext.displayName = 'UIContext' function uiReducer(state: State, action: Action) { switch (action.type) { case 'OPEN_SIDEBAR': { return { ...state, displaySidebar: true, } } case 'CLOSE_SIDEBAR': { return { ...state, displaySidebar: false, } } case 'OPEN_DROPDOWN': { return { ...state, displayDropdown: true, } } case 'CLOSE_DROPDOWN': { return { ...state, displayDropdown: false, } } case 'OPEN_MODAL': { return { ...state, displayModal: true, displaySidebar: false, } } case 'CLOSE_MODAL': { return { ...state, displayModal: false, } } case 'SET_MODAL_VIEW': { return { ...state, modalView: action.view, } } case 'SET_SIDEBAR_VIEW': { return { ...state, sidebarView: action.view, } } case 'SET_USER_AVATAR': { return { ...state, userAvatar: action.value, } } } } export const UIProvider: FC = (props) => { const [state, dispatch] = React.useReducer(uiReducer, initialState) const openSidebar = useCallback( () => dispatch({ type: 'OPEN_SIDEBAR' }), [dispatch] ) const closeSidebar = useCallback( () => dispatch({ type: 'CLOSE_SIDEBAR' }), [dispatch] ) const toggleSidebar = useCallback( () => state.displaySidebar ? dispatch({ type: 'CLOSE_SIDEBAR' }) : dispatch({ type: 'OPEN_SIDEBAR' }), [dispatch, state.displaySidebar] ) const closeSidebarIfPresent = useCallback( () => state.displaySidebar && dispatch({ type: 'CLOSE_SIDEBAR' }), [dispatch, state.displaySidebar] ) const openDropdown = useCallback( () => dispatch({ type: 'OPEN_DROPDOWN' }), [dispatch] ) const closeDropdown = useCallback( () => dispatch({ type: 'CLOSE_DROPDOWN' }), [dispatch] ) const openModal = useCallback( () => dispatch({ type: 'OPEN_MODAL' }), [dispatch] ) const closeModal = useCallback( () => dispatch({ type: 'CLOSE_MODAL' }), [dispatch] ) const setUserAvatar = useCallback( (value: string) => dispatch({ type: 'SET_USER_AVATAR', value }), [dispatch] ) const setModalView = useCallback( (view: MODAL_VIEWS) => dispatch({ type: 'SET_MODAL_VIEW', view }), [dispatch] ) const setSidebarView = useCallback( (view: SIDEBAR_VIEWS) => dispatch({ type: 'SET_SIDEBAR_VIEW', view }), [dispatch] ) const value = useMemo( () => ({ ...state, openSidebar, closeSidebar, toggleSidebar, closeSidebarIfPresent, openDropdown, closeDropdown, openModal, closeModal, setModalView, setSidebarView, setUserAvatar, }), [state] ) return } export const useUI = () => { const context = React.useContext(UIContext) if (context === undefined) { throw new Error(`useUI must be used within a UIProvider`) } return context } export const ManagedUIContext: FC = ({ children }) => ( {children} )