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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
import React from 'react'
import {AppBskyFeedDefs, AtUri} from '@atproto/api'
import {useQuery, useMutation, useQueryClient} from '@tanstack/react-query'
import {getAgent} from '#/state/session'
import {updatePostShadow} from '#/state/cache/post-shadow'
import {track} from '#/lib/analytics/analytics'
export const RQKEY = (postUri: string) => ['post', postUri]
export function usePostQuery(uri: string | undefined) {
return useQuery<AppBskyFeedDefs.PostView>({
queryKey: RQKEY(uri || ''),
async queryFn() {
const res = await getAgent().getPosts({uris: [uri!]})
if (res.success && res.data.posts[0]) {
return res.data.posts[0]
}
throw new Error('No data')
},
enabled: !!uri,
})
}
export function useGetPost() {
const queryClient = useQueryClient()
return React.useCallback(
async ({uri}: {uri: string}) => {
return queryClient.fetchQuery({
queryKey: RQKEY(uri || ''),
async queryFn() {
const urip = new AtUri(uri)
if (!urip.host.startsWith('did:')) {
const res = await getAgent().resolveHandle({
handle: urip.host,
})
urip.host = res.data.did
}
const res = await getAgent().getPosts({
uris: [urip.toString()!],
})
if (res.success && res.data.posts[0]) {
return res.data.posts[0]
}
throw new Error('useGetPost: post not found')
},
})
},
[queryClient],
)
}
export function usePostLikeMutation() {
return useMutation<
{uri: string}, // responds with the uri of the like
Error,
{uri: string; cid: string; likeCount: number} // the post's uri, cid, and likes
>({
mutationFn: post => getAgent().like(post.uri, post.cid),
onMutate(variables) {
// optimistically update the post-shadow
updatePostShadow(variables.uri, {
likeCount: variables.likeCount + 1,
likeUri: 'pending',
})
},
onSuccess(data, variables) {
// finalize the post-shadow with the like URI
updatePostShadow(variables.uri, {
likeUri: data.uri,
})
track('Post:Like')
},
onError(error, variables) {
// revert the optimistic update
updatePostShadow(variables.uri, {
likeCount: variables.likeCount,
likeUri: undefined,
})
},
})
}
export function usePostUnlikeMutation() {
return useMutation<
void,
Error,
{postUri: string; likeUri: string; likeCount: number}
>({
mutationFn: async ({likeUri}) => {
await getAgent().deleteLike(likeUri)
track('Post:Unlike')
},
onMutate(variables) {
// optimistically update the post-shadow
updatePostShadow(variables.postUri, {
likeCount: variables.likeCount - 1,
likeUri: undefined,
})
},
onError(error, variables) {
// revert the optimistic update
updatePostShadow(variables.postUri, {
likeCount: variables.likeCount,
likeUri: variables.likeUri,
})
},
})
}
export function usePostRepostMutation() {
return useMutation<
{uri: string}, // responds with the uri of the repost
Error,
{uri: string; cid: string; repostCount: number} // the post's uri, cid, and reposts
>({
mutationFn: post => getAgent().repost(post.uri, post.cid),
onMutate(variables) {
// optimistically update the post-shadow
updatePostShadow(variables.uri, {
repostCount: variables.repostCount + 1,
repostUri: 'pending',
})
},
onSuccess(data, variables) {
// finalize the post-shadow with the repost URI
updatePostShadow(variables.uri, {
repostUri: data.uri,
})
track('Post:Repost')
},
onError(error, variables) {
// revert the optimistic update
updatePostShadow(variables.uri, {
repostCount: variables.repostCount,
repostUri: undefined,
})
},
})
}
export function usePostUnrepostMutation() {
return useMutation<
void,
Error,
{postUri: string; repostUri: string; repostCount: number}
>({
mutationFn: async ({repostUri}) => {
await getAgent().deleteRepost(repostUri)
track('Post:Unrepost')
},
onMutate(variables) {
// optimistically update the post-shadow
updatePostShadow(variables.postUri, {
repostCount: variables.repostCount - 1,
repostUri: undefined,
})
},
onError(error, variables) {
// revert the optimistic update
updatePostShadow(variables.postUri, {
repostCount: variables.repostCount,
repostUri: variables.repostUri,
})
},
})
}
export function usePostDeleteMutation() {
return useMutation<void, Error, {uri: string}>({
mutationFn: async ({uri}) => {
await getAgent().deletePost(uri)
},
onSuccess(data, variables) {
updatePostShadow(variables.uri, {isDeleted: true})
track('Post:Delete')
},
})
}
|
