owncast/web/components/stores/ClientConfigStore.tsx
2022-09-10 20:03:58 -07:00

419 lines
13 KiB
TypeScript

import { FC, useEffect, useState } from 'react';
import { atom, selector, useRecoilState, useSetRecoilState } from 'recoil';
import { useMachine } from '@xstate/react';
import { makeEmptyClientConfig, ClientConfig } from '../../interfaces/client-config.model';
import ClientConfigService from '../../services/client-config-service';
import ChatService from '../../services/chat-service';
import WebsocketService from '../../services/websocket-service';
import { ChatMessage } from '../../interfaces/chat-message.model';
import { ServerStatus, makeEmptyServerStatus } from '../../interfaces/server-status.model';
import appStateModel, {
AppStateEvent,
AppStateOptions,
makeEmptyAppState,
} from './application-state';
import { setLocalStorage, getLocalStorage } from '../../utils/localStorage';
import {
ConnectedClientInfoEvent,
MessageType,
ChatEvent,
MessageVisibilityEvent,
SocketEvent,
} from '../../interfaces/socket-events';
import handleConnectedClientInfoMessage from './eventhandlers/connected-client-info-handler';
import ServerStatusService from '../../services/status-service';
import handleNameChangeEvent from './eventhandlers/handleNameChangeEvent';
import { DisplayableError } from '../../types/displayable-error';
const SERVER_STATUS_POLL_DURATION = 5000;
const ACCESS_TOKEN_KEY = 'accessToken';
let serverStatusRefreshPoll: ReturnType<typeof setInterval>;
// Server status is what gets updated such as viewer count, durations,
// stream title, online/offline state, etc.
export const serverStatusState = atom<ServerStatus>({
key: 'serverStatusState',
default: makeEmptyServerStatus(),
});
// The config that comes from the API.
export const clientConfigStateAtom = atom({
key: 'clientConfigState',
default: makeEmptyClientConfig(),
});
export const chatDisplayNameAtom = atom<string>({
key: 'chatDisplayName',
default: null,
});
export const chatDisplayColorAtom = atom<number>({
key: 'chatDisplayColor',
default: null,
});
export const chatUserIdAtom = atom<string>({
key: 'chatUserIdAtom',
default: null,
});
export const isChatModeratorAtom = atom<boolean>({
key: 'isModeratorAtom',
default: false,
});
export const accessTokenAtom = atom<string>({
key: 'accessTokenAtom',
default: null,
});
export const chatMessagesAtom = atom<ChatMessage[]>({
key: 'chatMessages',
default: [] as ChatMessage[],
});
export const chatAuthenticatedAtom = atom<boolean>({
key: 'chatAuthenticatedAtom',
default: false,
});
export const websocketServiceAtom = atom<WebsocketService>({
key: 'websocketServiceAtom',
default: null,
});
export const appStateAtom = atom<AppStateOptions>({
key: 'appState',
default: makeEmptyAppState(),
});
export const isMobileAtom = atom<boolean | undefined>({
key: 'isMobileAtom',
default: undefined,
});
export const chatVisibleToggleAtom = atom<boolean>({
key: 'chatVisibilityToggleAtom',
default: true,
});
export const isVideoPlayingAtom = atom<boolean>({
key: 'isVideoPlayingAtom',
default: false,
});
export const fatalErrorStateAtom = atom<DisplayableError>({
key: 'fatalErrorStateAtom',
default: null,
});
export const clockSkewAtom = atom<Number>({
key: 'clockSkewAtom',
default: 0.0,
});
export const removedMessageIdsAtom = atom<string[]>({
key: 'removedMessageIds',
default: [],
});
// Chat is visible if the user wishes it to be visible AND the required
// chat state is set.
export const isChatVisibleSelector = selector({
key: 'isChatVisibleSelector',
get: ({ get }) => {
const state: AppStateOptions = get(appStateAtom);
const userVisibleToggle: boolean = get(chatVisibleToggleAtom);
const accessToken: String = get(accessTokenAtom);
return accessToken && state.chatAvailable && userVisibleToggle;
},
});
export const isChatAvailableSelector = selector({
key: 'isChatAvailableSelector',
get: ({ get }) => {
const state: AppStateOptions = get(appStateAtom);
const accessToken: String = get(accessTokenAtom);
return accessToken && state.chatAvailable;
},
});
// We display in an "online/live" state as long as video is actively playing.
// Even during the time where technically the server has said it's no longer
// live, however the last few seconds of video playback is still taking place.
export const isOnlineSelector = selector({
key: 'isOnlineSelector',
get: ({ get }) => {
const state: AppStateOptions = get(appStateAtom);
const isVideoPlaying: boolean = get(isVideoPlayingAtom);
return state.videoAvailable || isVideoPlaying;
},
});
export const visibleChatMessagesSelector = selector<ChatMessage[]>({
key: 'visibleChatMessagesSelector',
get: ({ get }) => {
const messages: ChatMessage[] = get(chatMessagesAtom);
const removedIds: string[] = get(removedMessageIdsAtom);
return messages.filter(message => !removedIds.includes(message.id));
},
});
// Take a nested object of state metadata and merge it into
// a single flattened node.
function mergeMeta(meta) {
return Object.keys(meta).reduce((acc, key) => {
const value = meta[key];
Object.assign(acc, value);
return acc;
}, {});
}
export const ClientConfigStore: FC = () => {
const [appState, appStateSend, appStateService] = useMachine(appStateModel);
const setChatDisplayName = useSetRecoilState<string>(chatDisplayNameAtom);
const setChatDisplayColor = useSetRecoilState<Number>(chatDisplayColorAtom);
const setChatUserId = useSetRecoilState<string>(chatUserIdAtom);
const setChatAuthenticated = useSetRecoilState<boolean>(chatAuthenticatedAtom);
const setIsChatModerator = useSetRecoilState<boolean>(isChatModeratorAtom);
const [clientConfig, setClientConfig] = useRecoilState<ClientConfig>(clientConfigStateAtom);
const setServerStatus = useSetRecoilState<ServerStatus>(serverStatusState);
const setClockSkew = useSetRecoilState<Number>(clockSkewAtom);
const [chatMessages, setChatMessages] = useRecoilState<ChatMessage[]>(chatMessagesAtom);
const [accessToken, setAccessToken] = useRecoilState<string>(accessTokenAtom);
const setAppState = useSetRecoilState<AppStateOptions>(appStateAtom);
const setGlobalFatalErrorMessage = useSetRecoilState<DisplayableError>(fatalErrorStateAtom);
const setWebsocketService = useSetRecoilState<WebsocketService>(websocketServiceAtom);
const [hiddenMessageIds, setHiddenMessageIds] = useRecoilState<string[]>(removedMessageIdsAtom);
const [hasLoadedStatus, setHasLoadedStatus] = useState(false);
const [hasLoadedConfig, setHasLoadedConfig] = useState(false);
let ws: WebsocketService;
const setGlobalFatalError = (title: string, message: string) => {
setGlobalFatalErrorMessage({
title,
message,
});
};
const sendEvent = (event: string) => {
// console.log('---- sending event:', event);
appStateSend({ type: event });
};
const updateClientConfig = async () => {
try {
const config = await ClientConfigService.getConfig();
setClientConfig(config);
setGlobalFatalErrorMessage(null);
setHasLoadedConfig(true);
} catch (error) {
setGlobalFatalError(
'Unable to reach Owncast server',
`Owncast cannot launch. Please make sure the Owncast server is running.`,
);
console.error(`ClientConfigService -> getConfig() ERROR: \n${error}`);
}
};
const updateServerStatus = async () => {
try {
const status = await ServerStatusService.getStatus();
setServerStatus(status);
setHasLoadedStatus(true);
const { serverTime } = status;
const clockSkew = new Date(serverTime).getTime() - Date.now();
setClockSkew(clockSkew);
if (status.online) {
sendEvent(AppStateEvent.Online);
} else if (!status.online) {
sendEvent(AppStateEvent.Offline);
}
setGlobalFatalErrorMessage(null);
} catch (error) {
sendEvent(AppStateEvent.Fail);
setGlobalFatalError(
'Unable to reach Owncast server',
`Owncast cannot launch. Please make sure the Owncast server is running. ${error}`,
);
console.error(`serverStatusState -> getStatus() ERROR: \n${error}`);
}
return null;
};
const handleUserRegistration = async (optionalDisplayName?: string) => {
const savedAccessToken = getLocalStorage(ACCESS_TOKEN_KEY);
if (savedAccessToken) {
setAccessToken(savedAccessToken);
return;
}
try {
sendEvent(AppStateEvent.NeedsRegister);
const response = await ChatService.registerUser(optionalDisplayName);
console.log(`ChatService -> registerUser() response: \n${response}`);
const { accessToken: newAccessToken, displayName: newDisplayName, displayColor } = response;
if (!newAccessToken) {
return;
}
console.log('setting access token', newAccessToken);
setAccessToken(newAccessToken);
setLocalStorage(ACCESS_TOKEN_KEY, newAccessToken);
setChatDisplayName(newDisplayName);
setChatDisplayColor(displayColor);
} catch (e) {
sendEvent(AppStateEvent.Fail);
console.error(`ChatService -> registerUser() ERROR: \n${e}`);
}
};
const resetAndReAuth = () => {
setLocalStorage(ACCESS_TOKEN_KEY, '');
setAccessToken('');
handleUserRegistration();
};
const handleMessageVisibilityChange = (message: MessageVisibilityEvent) => {
const { ids, visible } = message;
if (visible) {
const updatedIds = hiddenMessageIds.filter(id => !ids.includes(id));
setHiddenMessageIds(updatedIds);
} else {
const updatedIds = [...hiddenMessageIds, ...ids];
setHiddenMessageIds(updatedIds);
}
};
const handleMessage = (message: SocketEvent) => {
switch (message.type) {
case MessageType.ERROR_NEEDS_REGISTRATION:
resetAndReAuth();
break;
case MessageType.CONNECTED_USER_INFO:
handleConnectedClientInfoMessage(
message as ConnectedClientInfoEvent,
setChatDisplayName,
setChatDisplayColor,
setChatUserId,
setIsChatModerator,
setChatAuthenticated,
);
setChatMessages(currentState => [...currentState, message as ChatEvent]);
break;
case MessageType.CHAT:
setChatMessages(currentState => [...currentState, message as ChatEvent]);
break;
case MessageType.NAME_CHANGE:
handleNameChangeEvent(message as ChatEvent, chatMessages, setChatMessages);
break;
case MessageType.USER_JOINED:
setChatMessages(currentState => [...currentState, message as ChatEvent]);
break;
case MessageType.SYSTEM:
setChatMessages(currentState => [...currentState, message as ChatEvent]);
break;
case MessageType.VISIBILITY_UPDATE:
handleMessageVisibilityChange(message as MessageVisibilityEvent);
break;
default:
console.error('Unknown socket message type: ', message.type);
}
};
const getChatHistory = async () => {
try {
const messages = await ChatService.getChatHistory(accessToken);
setChatMessages(currentState => [...currentState, ...messages]);
} catch (error) {
console.error(`ChatService -> getChatHistory() ERROR: \n${error}`);
}
};
const startChat = async () => {
try {
ws = new WebsocketService(accessToken, '/ws');
ws.handleMessage = handleMessage;
setWebsocketService(ws);
} catch (error) {
console.error(`ChatService -> startChat() ERROR: \n${error}`);
}
};
// Read the config and status on initial load from a JSON string that lives
// in window. This is placed there server-side and allows for fast initial
// load times because we don't have to wait for the API calls to complete.
useEffect(() => {
try {
if ((window as any).configHydration) {
const config = JSON.parse((window as any).configHydration);
setClientConfig(config);
}
} catch (e) {
// console.error('Error parsing config hydration', e);
}
try {
if ((window as any).statusHydration) {
const status = JSON.parse((window as any).statusHydration);
setServerStatus(status);
}
} catch (e) {
// console.error('error parsing status hydration', e);
}
}, []);
useEffect(() => {
if (hasLoadedStatus && hasLoadedConfig) {
sendEvent(AppStateEvent.Loaded);
}
}, [hasLoadedStatus, hasLoadedConfig]);
useEffect(() => {
if (!clientConfig.chatDisabled && accessToken && hasLoadedConfig) {
startChat();
}
}, [hasLoadedConfig, accessToken]);
useEffect(() => {
updateClientConfig();
handleUserRegistration();
updateServerStatus();
clearInterval(serverStatusRefreshPoll);
serverStatusRefreshPoll = setInterval(() => {
updateServerStatus();
}, SERVER_STATUS_POLL_DURATION);
}, [appState]);
useEffect(() => {
if (!accessToken) {
return;
}
getChatHistory();
}, [accessToken]);
useEffect(() => {
appStateService.onTransition(state => {
if (!state.changed) {
return;
}
const metadata = mergeMeta(state.meta) as AppStateOptions;
// console.debug('--- APP STATE: ', state.value);
// console.debug('--- APP META: ', metadata);
setAppState(metadata);
});
});
return null;
};