kot.pink
1package state
2
3import (
4 "log"
5 "net/http"
6 "time"
7
8 comatproto "github.com/bluesky-social/indigo/api/atproto"
9 lexutil "github.com/bluesky-social/indigo/lex/util"
10 "tangled.org/core/api/tangled"
11 "tangled.org/core/appview/db"
12 "tangled.org/core/appview/models"
13 "tangled.org/core/appview/pages"
14 "tangled.org/core/tid"
15)
16
17func (s *State) Follow(w http.ResponseWriter, r *http.Request) {
18 currentUser := s.oauth.GetUser(r)
19
20 subject := r.URL.Query().Get("subject")
21 if subject == "" {
22 log.Println("invalid form")
23 return
24 }
25
26 subjectIdent, err := s.idResolver.ResolveIdent(r.Context(), subject)
27 if err != nil {
28 log.Println("failed to follow, invalid did")
29 return
30 }
31
32 if currentUser.Did == subjectIdent.DID.String() {
33 log.Println("cant follow or unfollow yourself")
34 return
35 }
36
37 client, err := s.oauth.AuthorizedClient(r)
38 if err != nil {
39 log.Println("failed to authorize client")
40 return
41 }
42
43 switch r.Method {
44 case http.MethodPost:
45 createdAt := time.Now().Format(time.RFC3339)
46 rkey := tid.TID()
47 resp, err := comatproto.RepoPutRecord(r.Context(), client, &comatproto.RepoPutRecord_Input{
48 Collection: tangled.GraphFollowNSID,
49 Repo: currentUser.Did,
50 Rkey: rkey,
51 Record: &lexutil.LexiconTypeDecoder{
52 Val: &tangled.GraphFollow{
53 Subject: subjectIdent.DID.String(),
54 CreatedAt: createdAt,
55 }},
56 })
57 if err != nil {
58 log.Println("failed to create atproto record", err)
59 return
60 }
61
62 log.Println("created atproto record: ", resp.Uri)
63
64 follow := &models.Follow{
65 UserDid: currentUser.Did,
66 SubjectDid: subjectIdent.DID.String(),
67 Rkey: rkey,
68 }
69
70 err = db.AddFollow(s.db, follow)
71 if err != nil {
72 log.Println("failed to follow", err)
73 return
74 }
75
76 s.notifier.NewFollow(r.Context(), follow)
77
78 s.pages.FollowFragment(w, pages.FollowFragmentParams{
79 UserDid: subjectIdent.DID.String(),
80 FollowStatus: models.IsFollowing,
81 })
82
83 return
84 case http.MethodDelete:
85 // find the record in the db
86 follow, err := db.GetFollow(s.db, currentUser.Did, subjectIdent.DID.String())
87 if err != nil {
88 log.Println("failed to get follow relationship")
89 return
90 }
91
92 _, err = comatproto.RepoDeleteRecord(r.Context(), client, &comatproto.RepoDeleteRecord_Input{
93 Collection: tangled.GraphFollowNSID,
94 Repo: currentUser.Did,
95 Rkey: follow.Rkey,
96 })
97
98 if err != nil {
99 log.Println("failed to unfollow")
100 return
101 }
102
103 err = db.DeleteFollowByRkey(s.db, currentUser.Did, follow.Rkey)
104 if err != nil {
105 log.Println("failed to delete follow from DB")
106 // this is not an issue, the firehose event might have already done this
107 }
108
109 s.pages.FollowFragment(w, pages.FollowFragmentParams{
110 UserDid: subjectIdent.DID.String(),
111 FollowStatus: models.IsNotFollowing,
112 })
113
114 s.notifier.DeleteFollow(r.Context(), follow)
115
116 return
117 }
118
119}