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import io from 'socket.io-client';
import { ACTION, SocketActions } from '../actions/types';
import { Dispatch } from 'react';
import { AnyAction, MiddlewareAPI } from 'redux';
export const socketMiddleware = (baseUrl: string) => {
return (storeAPI: MiddlewareAPI) => {
let socket = io(baseUrl);
// eslint-disable-next-line
let listener: SocketIOClient.Emitter;
// Check actions and emit from socket if needed
return (next: Dispatch<AnyAction>) => (action: SocketActions) => {
// Send message over socket
if (action.type === ACTION.SEND_SOCKET_MESSAGE) {
socket.emit('simple-chat-message', action.payload);
return;
}
// Send private message over socket
if (action.type === ACTION.SEND_SOCKET_PRIVATE_MESSAGE) {
socket.emit('simple-chat-private-message', action.payload);
return;
}
// Pull sign in action and login to send socket server our userId (identify individual socket connectins)
if (action.type === ACTION.SIGN_IN) {
socket.emit('simple-chat-sign-in', action.payload);
listener = setupSocketListener(socket, storeAPI);
}
// Pull server list off initial data load
// Use to "join" our server "rooms"
if (action.type === ACTION.GET_INITIAL_DATA) {
// Get list of server Ids (used for "room" names on socket server)
let servers = Object.keys(action.payload.servers);
let serverIds: string[] = [];
servers.forEach((server, i) => {
serverIds[i] = server.split('-')[1];
});
// Subscribe to each server (Creates a room on socket io)
serverIds.forEach(serverId => {
socket.emit('subscribe', serverId);
});
}
// If user creates a server we need to join that room
if (action.type === ACTION.ADD_SERVER) {
let serverId = action.payload.server.split('-')[1];
socket.emit('subscribe', serverId);
}
// Updates our active state on server
if (action.type === ACTION.UPDATE_ACTIVE_STATE) {
socket.emit('update-active');
}
if (action.type === ACTION.SEND_SOCKET_JOIN_VOICE) {
socket.emit('user-join-voice', action.payload);
}
if (action.type === ACTION.SEND_SOCKET_LEAVE_VOICE) {
socket.emit('user-leave-voice', action.payload);
}
if (action.type === ACTION.SEND_SOCKET_RTC_SIGNAL) {
socket.emit('voice-signal', action.payload);
}
return next(action);
};
};
};
// Listens on socket with our userId
// Listens to socket server for specific events for messages / private messages
// TODO listen for listen for types of Server + payload of message
function setupSocketListener(socket: SocketIOClient.Socket, storeAPI: MiddlewareAPI): SocketIOClient.Emitter {
return socket.on('update', (action: any) => {
// Check for action type
if (action.type === 'message') {
storeAPI.dispatch({
type: ACTION.RECEIVE_SOCKET_MESSAGE,
payload: action.payload
});
} else if (action.type === 'private-message') {
storeAPI.dispatch({
type: ACTION.RECEIVE_SOCKET_PRIVATE_MESSAGE,
payload: action.payload
});
} else if (action.type === 'user-join-voice') {
storeAPI.dispatch({
type: ACTION.RECEIVE_SOCKET_JOIN_VOICE,
payload: action.payload
});
} else if (action.type === 'user-leave-voice') {
storeAPI.dispatch({
type: ACTION.RECEIVE_SOCKET_LEAVE_VOICE,
payload: action.payload
});
} else if (action.type === 'voice-signal') {
storeAPI.dispatch({
type: ACTION.RECEIVE_SOCKET_RTC_SIGNAL,
payload: action.payload
});
}
});
}
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