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package activitypub
import (
"fmt"
)
func CopyOrderedCollectionPageProperties(to, from *OrderedCollectionPage) (*OrderedCollectionPage, error) {
to.PartOf = replaceIfItem(to.PartOf, from.PartOf)
to.Next = replaceIfItem(to.Next, from.Next)
to.Prev = replaceIfItem(to.Prev, from.Prev)
oldCol, _ := ToOrderedCollection(to)
newCol, _ := ToOrderedCollection(from)
_, err := CopyOrderedCollectionProperties(oldCol, newCol)
if err != nil {
return to, err
}
return to, nil
}
func CopyCollectionPageProperties(to, from *CollectionPage) (*CollectionPage, error) {
to.PartOf = replaceIfItem(to.PartOf, from.PartOf)
to.Next = replaceIfItem(to.Next, from.Next)
to.Prev = replaceIfItem(to.Prev, from.Prev)
toCol, _ := ToCollection(to)
fromCol, _ := ToCollection(from)
_, err := CopyCollectionProperties(toCol, fromCol)
return to, err
}
func CopyOrderedCollectionProperties(to, from *OrderedCollection) (*OrderedCollection, error) {
to.First = replaceIfItem(to.First, from.First)
to.Last = replaceIfItem(to.Last, from.Last)
to.OrderedItems = replaceIfItemCollection(to.OrderedItems, from.OrderedItems)
if to.TotalItems == 0 {
to.TotalItems = from.TotalItems
}
oldOb, _ := ToObject(to)
newOb, _ := ToObject(from)
_, err := CopyObjectProperties(oldOb, newOb)
return to, err
}
func CopyCollectionProperties(to, from *Collection) (*Collection, error) {
to.First = replaceIfItem(to.First, from.First)
to.Last = replaceIfItem(to.Last, from.Last)
to.Items = replaceIfItemCollection(to.Items, from.Items)
if to.TotalItems == 0 {
to.TotalItems = from.TotalItems
}
oldOb, _ := ToObject(to)
newOb, _ := ToObject(from)
_, err := CopyObjectProperties(oldOb, newOb)
return to, err
}
// CopyObjectProperties updates the "old" object properties with the "new's"
// Including ID and Type
func CopyObjectProperties(to, from *Object) (*Object, error) {
to.ID = from.ID
to.Type = from.Type
to.Name = replaceIfNaturalLanguageValues(to.Name, from.Name)
to.Attachment = replaceIfItem(to.Attachment, from.Attachment)
to.AttributedTo = replaceIfItem(to.AttributedTo, from.AttributedTo)
to.Audience = replaceIfItemCollection(to.Audience, from.Audience)
to.Content = replaceIfNaturalLanguageValues(to.Content, from.Content)
to.Context = replaceIfItem(to.Context, from.Context)
if len(from.MediaType) > 0 {
to.MediaType = from.MediaType
}
if !from.EndTime.IsZero() {
to.EndTime = from.EndTime
}
to.Generator = replaceIfItem(to.Generator, from.Generator)
to.Icon = replaceIfItem(to.Icon, from.Icon)
to.Image = replaceIfItem(to.Image, from.Image)
to.InReplyTo = replaceIfItem(to.InReplyTo, from.InReplyTo)
to.Location = replaceIfItem(to.Location, from.Location)
to.Preview = replaceIfItem(to.Preview, from.Preview)
if to.Published.IsZero() && !from.Published.IsZero() {
to.Published = from.Published
}
if to.Updated.IsZero() && !from.Updated.IsZero() {
to.Updated = from.Updated
}
to.Replies = replaceIfItem(to.Replies, from.Replies)
if !from.StartTime.IsZero() {
to.StartTime = from.StartTime
}
to.Summary = replaceIfNaturalLanguageValues(to.Summary, from.Summary)
to.Tag = replaceIfItemCollection(to.Tag, from.Tag)
if from.URL != nil {
to.URL = from.URL
}
to.To = replaceIfItemCollection(to.To, from.To)
to.Bto = replaceIfItemCollection(to.Bto, from.Bto)
to.CC = replaceIfItemCollection(to.CC, from.CC)
to.BCC = replaceIfItemCollection(to.BCC, from.BCC)
if from.Duration == 0 {
to.Duration = from.Duration
}
to.Source = replaceIfSource(to.Source, from.Source)
return to, nil
}
func copyAllItemProperties(to, from Item) (Item, error) {
if CollectionType == to.GetType() {
o, err := ToCollection(to)
if err != nil {
return o, err
}
n, err := ToCollection(from)
if err != nil {
return o, err
}
return CopyCollectionProperties(o, n)
}
if CollectionPageType == to.GetType() {
o, err := ToCollectionPage(to)
if err != nil {
return o, err
}
n, err := ToCollectionPage(from)
if err != nil {
return o, err
}
return CopyCollectionPageProperties(o, n)
}
if OrderedCollectionType == to.GetType() {
o, err := ToOrderedCollection(to)
if err != nil {
return o, err
}
n, err := ToOrderedCollection(from)
if err != nil {
return o, err
}
return CopyOrderedCollectionProperties(o, n)
}
if OrderedCollectionPageType == to.GetType() {
o, err := ToOrderedCollectionPage(to)
if err != nil {
return o, err
}
n, err := ToOrderedCollectionPage(from)
if err != nil {
return o, err
}
return CopyOrderedCollectionPageProperties(o, n)
}
if ActorTypes.Contains(to.GetType()) {
o, err := ToActor(to)
if err != nil {
return o, err
}
n, err := ToActor(from)
if err != nil {
return o, err
}
return UpdatePersonProperties(o, n)
}
if ObjectTypes.Contains(to.GetType()) || to.GetType() == "" {
o, err := ToObject(to)
if err != nil {
return o, err
}
n, err := ToObject(from)
if err != nil {
return o, err
}
return CopyObjectProperties(o, n)
}
return to, fmt.Errorf("could not process objects with type %s", to.GetType())
}
// CopyItemProperties delegates to the correct per type functions for copying
// properties between matching Activity Objects
func CopyItemProperties(to, from Item) (Item, error) {
if to == nil {
return to, fmt.Errorf("nil object to update")
}
if from == nil {
return to, fmt.Errorf("nil object for update")
}
if !to.GetLink().Equals(from.GetLink(), false) {
return to, fmt.Errorf("object IDs don't match")
}
if to.GetType() != "" && to.GetType() != from.GetType() {
return to, fmt.Errorf("invalid object types for update %s(old) and %s(new)", from.GetType(), to.GetType())
}
return copyAllItemProperties(to, from)
}
// UpdatePersonProperties
func UpdatePersonProperties(to, from *Actor) (*Actor, error) {
to.Inbox = replaceIfItem(to.Inbox, from.Inbox)
to.Outbox = replaceIfItem(to.Outbox, from.Outbox)
to.Following = replaceIfItem(to.Following, from.Following)
to.Followers = replaceIfItem(to.Followers, from.Followers)
to.Liked = replaceIfItem(to.Liked, from.Liked)
to.PreferredUsername = replaceIfNaturalLanguageValues(to.PreferredUsername, from.PreferredUsername)
oldOb, _ := ToObject(to)
newOb, _ := ToObject(from)
_, err := CopyObjectProperties(oldOb, newOb)
return to, err
}
func replaceIfItem(old, new Item) Item {
if new == nil {
return old
}
return new
}
func replaceIfItemCollection(old, new ItemCollection) ItemCollection {
if new == nil {
return old
}
return new
}
func replaceIfNaturalLanguageValues(old, new NaturalLanguageValues) NaturalLanguageValues {
if new == nil {
return old
}
return new
}
func replaceIfSource(to, from Source) Source {
if from.MediaType != to.MediaType {
return from
}
to.Content = replaceIfNaturalLanguageValues(to.Content, from.Content)
return to
}
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