bigbluebutton-Github/bigbluebutton-html5/imports/ui/components/plugins-engine/data-channel/channel-manager/reader-manager.tsx

89 lines
2.6 KiB
TypeScript

import React, { useEffect, useRef } from 'react';
import { DocumentNode } from 'graphql';
import { GraphqlResponseWrapper, UpdatedEventDetails } from 'bigbluebutton-html-plugin-sdk/dist/cjs/core/types';
import { DataChannelHooks, DataChannelTypes } from 'bigbluebutton-html-plugin-sdk/dist/cjs/data-channel/enums';
import { PLUGIN_DATA_CHANNEL_LATEST_ITEM, PLUGIN_DATA_CHANNEL_NEW_ITEMS, PLUGIN_DATA_CHANNEL_All_ITEMS } from '../subscriptions';
import createUseSubscription from '/imports/ui/core/hooks/createUseSubscription';
export interface DataChannelItemManagerReaderProps {
pluginName: string;
channelName: string;
subChannelName: string;
dataChannelType: DataChannelTypes;
dataChannelIdentifier: string;
}
export interface SubscriptionVariables {
subChannelName: string;
pluginName: string;
channelName: string;
createdAt?: string;
}
export const DataChannelItemManagerReader: React.ElementType<DataChannelItemManagerReaderProps> = (
props: DataChannelItemManagerReaderProps,
) => {
const {
pluginName,
channelName,
dataChannelType,
subChannelName,
dataChannelIdentifier,
} = props;
const cursor = useRef(new Date());
let subscription: DocumentNode;
const variables: SubscriptionVariables = {
subChannelName,
pluginName,
channelName,
};
let usePatchedSubscription = true;
switch (dataChannelType) {
case DataChannelTypes.LATEST_ITEM:
subscription = PLUGIN_DATA_CHANNEL_LATEST_ITEM;
usePatchedSubscription = false;
break;
case DataChannelTypes.NEW_ITEMS:
subscription = PLUGIN_DATA_CHANNEL_NEW_ITEMS;
variables.createdAt = cursor.current.toISOString();
usePatchedSubscription = false;
break;
case DataChannelTypes.All_ITEMS:
subscription = PLUGIN_DATA_CHANNEL_All_ITEMS;
break;
default:
subscription = PLUGIN_DATA_CHANNEL_All_ITEMS;
break;
}
const dataResultFromSubscription = createUseSubscription<object>(subscription,
variables, usePatchedSubscription)((obj) => obj);
useEffect(() => {
const dataResult = {
data: dataResultFromSubscription.data,
loading: dataResultFromSubscription.loading,
} as GraphqlResponseWrapper<object>;
window.dispatchEvent(
new CustomEvent<UpdatedEventDetails<
GraphqlResponseWrapper<object>
>>(dataChannelIdentifier, {
detail: {
hook: DataChannelHooks.DATA_CHANNEL_BUILDER,
data: dataResult,
hookArguments: {
dataChannelType,
pluginName,
channelName,
subChannelName,
},
},
}),
);
}, [dataResultFromSubscription]);
return null;
};