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nip29: refine group-events relationships and write some tests.

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This commit is contained in:
fiatjaf
2024-01-04 15:00:55 -03:00
parent ed3642f112
commit 48db1df66c
2 changed files with 94 additions and 8 deletions
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41
nip29/group.go
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@@ -20,6 +20,18 @@ type Group struct {
LastMembersUpdate nostr.Timestamp
}
func NewGroup(id string) *Group {
now := nostr.Now()
return &Group{
ID: id,
Name: id,
Members: make(map[string]*Role),
LastMetadataUpdate: now,
LastAdminsUpdate: now,
LastMembersUpdate: now,
}
}
func (group Group) ToMetadataEvent() *nostr.Event {
evt := &nostr.Event{
Kind: nostr.KindSimpleGroupMetadata,
@@ -65,7 +77,7 @@ func (group Group) ToAdminsEvent() *nostr.Event {
for member, role := range group.Members {
if role != nil {
// is an admin
tag := make([]string, 0, 3+len(role.Permissions))
tag := make([]string, 3, 3+len(role.Permissions))
tag[0] = "p"
tag[1] = member
tag[2] = role.Name
@@ -99,13 +111,11 @@ func (group *Group) MergeInMetadataEvent(evt *nostr.Event) error {
if evt.Kind != nostr.KindSimpleGroupMetadata {
return fmt.Errorf("expected kind %d, got %d", nostr.KindSimpleGroupMetadata, evt.Kind)
}
if evt.CreatedAt <= group.LastMetadataUpdate {
if evt.CreatedAt < group.LastMetadataUpdate {
return fmt.Errorf("event is older than our last update (%d vs %d)", evt.CreatedAt, group.LastMetadataUpdate)
}
group.LastMetadataUpdate = evt.CreatedAt
group.ID = evt.Tags.GetD()
group.Name = group.ID
if tag := evt.Tags.GetFirst([]string{"name", ""}); tag != nil {
@@ -132,8 +142,7 @@ func (group *Group) MergeInAdminsEvent(evt *nostr.Event) error {
if evt.Kind != nostr.KindSimpleGroupAdmins {
return fmt.Errorf("expected kind %d, got %d", nostr.KindSimpleGroupAdmins, evt.Kind)
}
if evt.CreatedAt <= group.LastAdminsUpdate {
if evt.CreatedAt < group.LastAdminsUpdate {
return fmt.Errorf("event is older than our last update (%d vs %d)", evt.CreatedAt, group.LastAdminsUpdate)
}
@@ -148,6 +157,18 @@ func (group *Group) MergeInAdminsEvent(evt *nostr.Event) error {
if !nostr.IsValidPublicKeyHex(tag[1]) {
continue
}
role := group.Members[tag[1]]
if role == nil {
role = &Role{Name: tag[2]}
group.Members[tag[1]] = role
}
if role.Permissions == nil {
role.Permissions = make(map[Permission]struct{}, len(tag)-3)
}
for _, perm := range tag[2:] {
role.Permissions[Permission(perm)] = struct{}{}
}
}
return nil
@@ -157,8 +178,7 @@ func (group *Group) MergeInMembersEvent(evt *nostr.Event) error {
if evt.Kind != nostr.KindSimpleGroupMembers {
return fmt.Errorf("expected kind %d, got %d", nostr.KindSimpleGroupMembers, evt.Kind)
}
if evt.CreatedAt <= group.LastMembersUpdate {
if evt.CreatedAt < group.LastMembersUpdate {
return fmt.Errorf("event is older than our last update (%d vs %d)", evt.CreatedAt, group.LastMembersUpdate)
}
@@ -173,6 +193,11 @@ func (group *Group) MergeInMembersEvent(evt *nostr.Event) error {
if !nostr.IsValidPublicKeyHex(tag[1]) {
continue
}
_, exists := group.Members[tag[1]]
if !exists {
group.Members[tag[1]] = EmptyRole
}
}
return nil