yoginth.com
Hey is a decentralized and permissionless social media app built with Lens Protocol 馃尶
1import {
2 article,
3 audio,
4 image,
5 textOnly,
6 video
7} from "@lens-protocol/metadata";
8import { useCallback } from "react";
9import { usePostAttachmentStore } from "@/store/non-persisted/post/usePostAttachmentStore";
10import { usePostLicenseStore } from "@/store/non-persisted/post/usePostLicenseStore";
11import { usePostVideoStore } from "@/store/non-persisted/post/usePostVideoStore";
12import { usePostAudioStore } from "../store/non-persisted/post/usePostAudioStore";
13
14interface UsePostMetadataProps {
15 baseMetadata: any;
16}
17
18const usePostMetadata = () => {
19 const { videoDurationInSeconds, videoThumbnail } = usePostVideoStore();
20 const { audioPost } = usePostAudioStore();
21 const { license } = usePostLicenseStore();
22 const { attachments } = usePostAttachmentStore();
23
24 const formatAttachments = () =>
25 attachments.slice(1).map(({ mimeType, uri }) => ({
26 item: uri,
27 type: mimeType
28 }));
29
30 const getMetadata = useCallback(
31 ({ baseMetadata }: UsePostMetadataProps) => {
32 const primaryAttachment = attachments[0];
33 const hasAttachments = Boolean(primaryAttachment);
34 const isImage = primaryAttachment?.type === "Image";
35 const isAudio = primaryAttachment?.type === "Audio";
36 const isVideo = primaryAttachment?.type === "Video";
37
38 if (!hasAttachments) {
39 return baseMetadata.content?.length > 2000
40 ? article(baseMetadata)
41 : textOnly(baseMetadata);
42 }
43
44 const attachmentsToBeUploaded = formatAttachments();
45
46 if (isImage) {
47 return image({
48 ...baseMetadata,
49 ...(attachmentsToBeUploaded.length > 0 && {
50 attachments: attachmentsToBeUploaded
51 }),
52 image: {
53 ...(license && { license }),
54 item: primaryAttachment.uri,
55 type: primaryAttachment.mimeType
56 }
57 });
58 }
59
60 if (isAudio) {
61 return audio({
62 ...baseMetadata,
63 ...(attachmentsToBeUploaded.length > 0 && {
64 attachments: attachmentsToBeUploaded
65 }),
66 audio: {
67 ...(audioPost.artist && {
68 artist: audioPost.artist
69 }),
70 cover: audioPost.cover,
71 item: primaryAttachment.uri,
72 type: primaryAttachment.mimeType,
73 ...(license && { license })
74 }
75 });
76 }
77
78 if (isVideo) {
79 return video({
80 ...baseMetadata,
81 ...(attachmentsToBeUploaded.length > 0 && {
82 attachments: attachmentsToBeUploaded
83 }),
84 video: {
85 cover: videoThumbnail.url,
86 duration: Number.parseInt(videoDurationInSeconds, 10),
87 item: primaryAttachment.uri,
88 type: primaryAttachment.mimeType,
89 ...(license && { license })
90 }
91 });
92 }
93
94 return null;
95 },
96 [attachments, videoDurationInSeconds, audioPost, videoThumbnail, license]
97 );
98
99 return getMetadata;
100};
101
102export default usePostMetadata;