public.gno

 1package groups
 2
 3import (
 4	"std"
 5
 6	"gno.land/r/sys/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	crossing()
22	std.AssertOriginCall()
23	caller := std.OriginCaller()
24	usernameOf(caller)
25	url := "/r/demo/groups:" + name
26	group := newGroup(url, name, caller)
27	gidkey := groupIDKey(group.id)
28	gGroups.Set(gidkey, group)
29	gGroupsByName.Set(name, group)
30	return group.id
31}
32
33func AddMember(gid GroupID, address string, weight int, metadata string) MemberID {
34	crossing()
35	std.AssertOriginCall()
36	caller := std.OriginCaller()
37	usernameOf(caller)
38	group := getGroup(gid)
39	if !group.HasPermission(caller, EditPermission) {
40		panic("unauthorized to edit group")
41	}
42	user := users.ResolveAddress(std.Address(address))
43	if user == nil {
44		panic("unknown address " + address)
45	}
46	mid := group.lastMemberID
47	member := group.newMember(mid, std.Address(address), weight, metadata)
48	midkey := memberIDKey(mid)
49	group.members.Set(midkey, member)
50	mid++
51	group.lastMemberID = mid
52	return member.id
53}
54
55func DeleteGroup(gid GroupID) {
56	crossing()
57	std.AssertOriginCall()
58	caller := std.OriginCaller()
59	group := getGroup(gid)
60	if !group.HasPermission(caller, DeletePermission) {
61		panic("unauthorized to delete group")
62	}
63	group.deleteGroup()
64}
65
66func DeleteMember(gid GroupID, mid MemberID) {
67	crossing()
68	std.AssertOriginCall()
69	caller := std.OriginCaller()
70	group := getGroup(gid)
71	if !group.HasPermission(caller, DeletePermission) {
72		panic("unauthorized to delete member")
73	}
74	group.deleteMember(mid)
75}