72 lines
1.6 KiB
TypeScript
72 lines
1.6 KiB
TypeScript
import React, {
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createContext, useContext, useState, FC
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} from "react";
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import { useQuery, gql } from "@apollo/client";
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import { Query, UserRole } from "../__generated__/graphql-schema";
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import { UnauthorizedAccess } from "../pages/session";
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import { Loading } from "../pages/shared";
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export type UserContext = {
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user?: Query['currentUser']
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refetch: () => void
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isOnlyTeacher: boolean
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}
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const Context = createContext<UserContext>({
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refetch: () => {
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},
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isOnlyTeacher: false,
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})
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export const useCurrentUser = (): UserContext => {
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const context = useContext(Context);
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if (context === null) {
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throw new Error("You probably forgot to put <UserContext>.");
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}
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return context;
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};
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const CurrentUserQuery = gql`
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query CurrentUserQuery {
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currentUser {
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id
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name
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email
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roles
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}
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}
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`;
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type Props = {
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children: any
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}
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export const UserContext: FC<Props> = ({ children }) => {
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const [user, setUser] = useState<Query['currentUser']>();
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const isOnlyTeacher = !!(user?.roles.includes(UserRole.Teacher) && user?.roles.length === 1)
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const { refetch: refetchUserQuery, loading } = useQuery<Query>(CurrentUserQuery, {
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onCompleted: ({ currentUser }) => {
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setUser(currentUser)
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}
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})
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const refetch = async () => {
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const { data: { currentUser } } = await refetchUserQuery()
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setUser(currentUser)
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}
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if (loading) return <Loading />
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if (!user) return <UnauthorizedAccess />
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return (
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<Context.Provider value={{ user, refetch, isOnlyTeacher }}>
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{children}
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</Context.Provider>
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);
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};
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