91 lines
2.5 KiB
TypeScript
91 lines
2.5 KiB
TypeScript
import { useState, useEffect } from 'react';
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import { useSubscription } from '@apollo/client';
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import {
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CursorCoordinates,
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CursorCoordinatesResponse,
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CursorSubscriptionResponse,
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cursorUserSubscription,
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getcursorsCoordinatesStream,
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userCursorResponse,
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} from './queries';
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interface mergedData extends CursorCoordinates, userCursorResponse {}
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// Custom hook to fetch and merge data
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export const useMergedCursorData = () => {
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const [
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cursorCoordinates,
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setCursorCoordinates,
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] = useState<{[key :string]: CursorCoordinates}>({});
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const [
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userCursor,
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setUserCursor,
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] = useState<{[key :string]: userCursorResponse}>({});
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const [
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userCursorMerged,
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setUserCursorMerged,
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] = useState<mergedData[]>([]);
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// Fetch cursor coordinates
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const { data: cursorSubscriptionData } = useSubscription<CursorSubscriptionResponse>(cursorUserSubscription);
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const cursorSubscriptionDataString = JSON.stringify(cursorSubscriptionData);
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const { data: cursorCoordinatesData } = useSubscription<CursorCoordinatesResponse>(getcursorsCoordinatesStream);
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const cursorCoordinatesDataString = JSON.stringify(cursorCoordinatesData);
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useEffect(() => {
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if (cursorCoordinatesData) {
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const cursorData = cursorCoordinatesData.pres_page_cursor_stream.reduce((acc, cursor) => {
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acc[cursor.userId] = cursor;
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return acc;
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}, {} as {[key :string]: CursorCoordinates});
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setCursorCoordinates((prev) => {
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return {
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...prev,
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...cursorData,
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};
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});
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}
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}, [cursorCoordinatesDataString]);
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useEffect(() => {
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if (cursorSubscriptionData) {
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const cursorData = cursorSubscriptionData.pres_page_cursor.reduce((acc, cursor) => {
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acc[cursor.userId] = cursor;
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return acc;
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}, {} as {[key :string]: userCursorResponse});
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setUserCursor(cursorData);
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}
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}, [cursorSubscriptionDataString]);
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useEffect(() => {
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if (userCursor) {
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const mergedData = Object.keys(userCursor).map((userId) => {
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const cursor = userCursor[userId];
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const coordinates = cursorCoordinates[userId];
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if (coordinates) {
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return {
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...coordinates,
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...cursor,
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};
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}
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return {
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...cursor,
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userId,
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xPercent: -1,
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yPercent: -1,
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};
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}) as mergedData[];
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setUserCursorMerged(mergedData);
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}
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}, [cursorCoordinates, userCursor]);
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return userCursorMerged;
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};
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export default {
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useMergedCursorData,
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};
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