-
Notifications
You must be signed in to change notification settings - Fork 1
/
+server.ts
101 lines (84 loc) · 3.19 KB
/
+server.ts
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 { dev } from "$app/environment";
import { likesCollection } from "$db/likes";
import type { RequestHandler } from "@sveltejs/kit";
import { DeviceUuid } from "./helper";
interface User {
uuid: string;
likes: number;
}
interface PostLike {
slug: string;
users: User[];
}
export const POST: RequestHandler = async ({ request, getClientAddress }): Promise<Response> => {
const likes = { total: 0, user: 0 };
const { slug } = await request.json();
const uuid = dev
? "localhost"
: await DeviceUuid(request.headers.get("user-agent") || "", getClientAddress());
try {
const postLike = await likesCollection.findOne<PostLike>({ slug });
if (!postLike) {
likes.total = 1;
likes.user = 1;
await likesCollection.insertOne({ slug, users: [{ uuid, likes: 1 }] } as PostLike);
} else {
likes.total = postLike ? postLike.users.reduce((prev, curr) => prev + curr.likes, 0) : 0;
let user = postLike?.users.find((user) => user.uuid === uuid);
if (user && user.likes < 5) {
user.likes++;
await likesCollection.updateOne({ slug }, { $set: { users: postLike.users } });
} else if (user) {
return new Response("You've reached the maximum number of likes. (5)", { status: 403 });
} else {
await likesCollection.updateOne(
{ slug },
{ $push: { users: { uuid, likes: 1 } as User } as unknown as undefined },
{ upsert: true },
);
user = { uuid, likes: 1 };
}
likes.total++;
likes.user = user.likes ?? 0;
}
} catch (e) {
return new Response("An error occurred while connecting to the DB.", { status: 500 });
}
return new Response(JSON.stringify({ likes }));
};
export const GET: RequestHandler = async ({
request,
url,
getClientAddress,
}): Promise<Response> => {
const likes = { total: 0, user: 0 };
const slug = url.searchParams.get("slug");
const uuid = dev
? "localhost"
: await DeviceUuid(request.headers.get("user-agent") || "", getClientAddress());
try {
const postLike = await likesCollection.findOne<PostLike>({ slug });
likes.total = postLike ? postLike.users.reduce((prev, curr) => prev + curr.likes, 0) : 0;
likes.user = postLike?.users.find((user) => user.uuid === uuid)?.likes ?? 0;
} catch (e) {
return new Response("An error occurred while connecting to the DB.", { status: 500 });
}
return new Response(JSON.stringify({ likes }));
};
export const DELETE: RequestHandler = async ({ request }): Promise<Response> => {
if (!dev) {
return new Response("When not in dev mode, DELETE is an illegal action.", { status: 405 });
}
const uuid = "localhost"; // dev mode, we never delete a real user's like
const { slug } = await request.json();
try {
const post = await likesCollection.findOne<PostLike>({ slug });
const updatedUsers = post?.users.filter((user) => user.uuid !== uuid);
if (post && post.users.length > 0 && post.users.length !== updatedUsers?.length) {
await likesCollection.updateOne({ slug }, { $set: { users: updatedUsers } });
}
} catch (e) {
return new Response("An error occurred while connecting to the DB.", { status: 500 });
}
return new Response();
};