1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
import axios from 'axios';
import { activeChannel, channelsList, logins, messages } from '$lib/store';
export const apiServer = axios.create({
baseURL: '/api/',
});
export async function boot() {
return apiServer.get('/boot');
}
export async function logIn(username, password) {
const data = {
name: username,
password,
};
return apiServer.post('/auth/login', data);
}
export async function logOut() {
return apiServer.post('/auth/logout', {});
}
export async function createChannel(name) {
return apiServer.post('/channels', { name });
}
export async function postToChannel(channelId, body) {
return apiServer.post(`/channels/${channelId}`, { body });
}
export async function deleteMessage(messageId) {
// TODO
}
export function subscribeToEvents(resume_point) {
const eventsUrl = new URL('/api/events', window.location);
eventsUrl.searchParams.append('resume_point', resume_point);
const evtSource = new EventSource(eventsUrl.toString());
// TODO: this should process all incoming events and store them.
// TODO: eventually we'll need to handle expiring old info, so as not to use
// infinite browser memory.
/*
* Known message types as of now:
* - created: a channel is created.
* - action: ignore.
* - message: a message is created.
* - action: display message in channel.
* - message_deleted: a message is deleted.
* - action: replace message with <...>.
* - deleted: a channel is deleted.
* - action: remove channel from sidebar.
*/
evtSource.onmessage = (evt) => {
const data = JSON.parse(evt.data);
switch (data.type) {
case 'login':
onLoginEvent(data);
break;
case 'channel':
onChannelEvent(data);
break;
case 'message':
onMessageEvent(data);
break;
}
}
}
function onLoginEvent(data) {
switch (data.event) {
case 'created':
logins.update((value) => value.addLogin(data.id, data.name))
break;
}
}
function onChannelEvent(data) {
switch (data.event) {
case 'created':
channelsList.update((value) => value.addChannel(data.id, data.name))
break;
case 'deleted':
activeChannel.update((value) => value.deleteChannel(data.id));
channelsList.update((value) => value.deleteChannel(data.id));
messages.update((value) => value.deleteChannel(data.id));
break;
}
}
function onMessageEvent(data) {
switch (data.event) {
case 'sent':
messages.update((value) => value.addMessage(data.channel, data.id, data.at, data.sender, data.body));
break;
case 'deleted':
messages.update((value) => value.deleteMessage(data.id));
break;
}
}
|
