pashto-grammar/src/user-context.tsx

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import React, { createContext, useEffect } from "react"
import useStickyState from "./useStickyState";
import {
AT,
getUser,
userObjIsEqual,
} from "@lingdocs/lingdocs-main";
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import { CronJob } from "cron";
import { postSavedResults } from "./lib/game-results";
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const UserContext = createContext<
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{
user: AT.LingdocsUser | undefined,
setUser: React.Dispatch<React.SetStateAction<AT.LingdocsUser | undefined>>,
pullUser: () => void,
}
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| undefined
>(undefined);
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// TODO: persisting user in local state
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function UserProvider({ children }: any) {
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const {value, setValue} = useStickyState<AT.LingdocsUser | undefined>(
undefined,
"saved-user",
);
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function pullUser() {
getUser().then((user) => {
if (user === "offline") return;
// don't update if there's nothing new - to avoid re-renders erasing game input etc
if (!userObjIsEqual(user, value)) {
setValue(user);
}
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}).catch(console.error);
}
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const checkUserCronJob = new CronJob("1/30 * * * * *", () => {
pullUser();
if (value) {
postSavedResults(value.userId);
}
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});
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useEffect(() => {
pullUser();
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checkUserCronJob.start();
return () => {
checkUserCronJob.stop();
}
// eslint-disable-next-line
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}, []);
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return <UserContext.Provider value={{ user: value, setUser: setValue, pullUser }}>
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{children}
</UserContext.Provider>;
}
function useUser() {
const context = React.useContext(UserContext)
if (context === undefined) {
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throw new Error('useUser must be used within a UserProvider')
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}
return context;
}
export { UserProvider, useUser };