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
|
/// <reference types="@sveltejs/kit" />
/// <reference no-default-lib="true"/>
/// <reference lib="esnext" />
/// <reference lib="webworker" />
self.addEventListener('install', (event) => {
self.skipWaiting();
});
self.addEventListener('activate', (event) => {
event.waitUntil(self.clients.claim());
});
// ###### Handle unread badge:
const conversationReadStatus = {
// Format:
// conversationId: { lastRead: Optional(Datetime), lastMessage: Datetime }
};
function countUnreadChannels() {
return Object.entries(conversationReadStatus)
.map(([conversationId, { lastRead, lastMessage }]) => {
return !lastRead || lastRead < lastMessage ? 1 : 0;
})
.reduce((total, current) => total + current, 0);
}
self.addEventListener('push', (event) => {
const data = event.data.json();
if (data.type === 'heartbeat') {
// Let's show a notification right away so Safari doesn't tell Apple to be
// mad at us:
event.waitUntil(
self.registration.showNotification('Test notification', {
actions: [],
body: event.data.text(),
}),
);
}
if (data.type === 'message' && data.event === 'sent') {
// Now we can do slower things that might fail:
conversationReadStatus[data.conversation] ||= { lastRead: null, lastMessage: null };
conversationReadStatus[data.conversation].lastMessage = new Date();
event.waitUntil(
(async () => {
if (navigator.setAppBadge) {
await navigator.setAppBadge(countUnreadChannels());
}
})(),
);
}
});
// The client has to tell us when it has read a conversation:
self.addEventListener('message', (event) => {
const data = event.data;
switch (data.type) {
case 'CONVERSATION_READ':
conversationReadStatus[data.conversationId] ||= { lastRead: null, lastMessage: null };
if (data.at) {
conversationReadStatus[data.conversationId].lastRead = new Date(data.at.ts);
} else {
conversationReadStatus[data.conversationId].lastRead = new Date();
}
event.waitUntil(
(async () => {
if (navigator.setAppBadge) {
await navigator.setAppBadge(countUnreadChannels());
}
})(),
);
break;
default:
break;
}
});
|
