1package groups
2
3import (
4 "std"
5
6 "gno.land/r/demo/users"
7)
8
9//----------------------------------------
10// Public facing functions
11
12func GetGroupIDFromName(name string) (GroupID, bool) {
13 groupI, exists := gGroupsByName.Get(name)
14 if !exists {
15 return 0, false
16 }
17 return groupI.(*Group).id, true
18}
19
20func CreateGroup(name string) GroupID {
21 std.AssertOriginCall()
22 caller := std.GetOrigCaller()
23 usernameOf(caller)
24 url := "/r/demo/groups:" + name
25 group := newGroup(url, name, caller)
26 gidkey := groupIDKey(group.id)
27 gGroups.Set(gidkey, group)
28 gGroupsByName.Set(name, group)
29 return group.id
30}
31
32func AddMember(gid GroupID, address string, weight int, metadata string) MemberID {
33 std.AssertOriginCall()
34 caller := std.GetOrigCaller()
35 usernameOf(caller)
36 group := getGroup(gid)
37 if !group.HasPermission(caller, EditPermission) {
38 panic("unauthorized to edit group")
39 }
40 user := users.GetUserByAddress(std.Address(address))
41 if user == nil {
42 panic("unknown address " + address)
43 }
44 mid := group.lastMemberID
45 member := group.newMember(mid, std.Address(address), weight, metadata)
46 midkey := memberIDKey(mid)
47 group.members.Set(midkey, member)
48 mid++
49 group.lastMemberID = mid
50 return member.id
51}
52
53func DeleteGroup(gid GroupID) {
54 std.AssertOriginCall()
55 caller := std.GetOrigCaller()
56 group := getGroup(gid)
57 if !group.HasPermission(caller, DeletePermission) {
58 panic("unauthorized to delete group")
59 }
60 group.deleteGroup()
61}
62
63func DeleteMember(gid GroupID, mid MemberID) {
64 std.AssertOriginCall()
65 caller := std.GetOrigCaller()
66 group := getGroup(gid)
67 if !group.HasPermission(caller, DeletePermission) {
68 panic("unauthorized to delete member")
69 }
70 group.deleteMember(mid)
71}
public.gno
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