feat: Authors feature backend (and upgraded deprecated mods)

internal/infrastructure/useCases/MergeMedia.go

@@ -3,6 +3,7 @@ package useCases
 import (
 	"RenewCMS/internal/domain/article"
 	"RenewCMS/internal/domain/audit"
+	"RenewCMS/internal/domain/author"
 	"RenewCMS/internal/domain/image"
 	"RenewCMS/internal/domain/site"
 	"cmp"
@@ -16,6 +17,7 @@ type MergeMediaResult struct {
 	ArticlesUpdated   int
 	Merged            int
 	SitesUpdated      int
+	AuthorsUpdated    int
 	UpdatedArticleIDs []uint32
 }
 
@@ -25,18 +27,27 @@ type MergeMediaUseCase struct {
 	remover           mediaRemover
 	recorder          audit.Recorder
 	sites             site.Repository
+	authors           author.Repository
 }
 
-func NewMergeMediaUseCase(imageRepository image.Repository, articleRepository article.Repository, storage image.Storage, variantFiles image.VariantFileRepository, recorder audit.Recorder, sites site.Repository) *MergeMediaUseCase {
-	return &MergeMediaUseCase{imageRepository: imageRepository, articleRepository: articleRepository, remover: newMediaRemover(imageRepository, storage, variantFiles), recorder: recorder, sites: sites}
+func NewMergeMediaUseCase(imageRepository image.Repository, articleRepository article.Repository, storage image.Storage, variantFiles image.VariantFileRepository, recorder audit.Recorder, sites site.Repository, authors author.Repository) *MergeMediaUseCase {
+	return &MergeMediaUseCase{imageRepository: imageRepository, articleRepository: articleRepository, remover: newMediaRemover(imageRepository, storage, variantFiles), recorder: recorder, sites: sites, authors: authors}
 }
 
-func (u *MergeMediaUseCase) repointSites(copies []image.Image, keptId uint32) (int, error) {
+func copyIdsOf(copies []image.Image) []uint32 {
 	copyIds := make([]uint32, 0, len(copies))
 	for _, duplicate := range copies {
 		copyIds = append(copyIds, duplicate.ID)
 	}
-	return u.sites.RepointImage(copyIds, keptId)
+	return copyIds
+}
+
+func (u *MergeMediaUseCase) repointSites(copies []image.Image, keptId uint32) (int, error) {
+	return u.sites.RepointImage(copyIdsOf(copies), keptId)
+}
+
+func (u *MergeMediaUseCase) repointAuthors(copies []image.Image, keptId uint32) (int, error) {
+	return u.authors.RepointAvatar(copyIdsOf(copies), keptId)
 }
 
 type bodyRewrite struct {
@@ -95,13 +106,19 @@ func (u *MergeMediaUseCase) merge(keepId uint32, mergeIds []uint32) (MergeMediaR
 		return MergeMediaResult{}, err
 	}
 
+	authorsUpdated, err := u.repointAuthors(copies, kept.ID)
+	if err != nil {
+		u.restoreBodies(rewrites)
+		return MergeMediaResult{}, err
+	}
+
 	for _, duplicate := range copies {
 		if err := u.remover.remove(duplicate); err != nil {
 			return MergeMediaResult{}, err
 		}
 	}
 
-	return MergeMediaResult{ArticlesUpdated: len(rewrites), Merged: len(copies), SitesUpdated: sitesUpdated, UpdatedArticleIDs: rewrittenIds(rewrites)}, nil
+	return MergeMediaResult{ArticlesUpdated: len(rewrites), Merged: len(copies), SitesUpdated: sitesUpdated, AuthorsUpdated: authorsUpdated, UpdatedArticleIDs: rewrittenIds(rewrites)}, nil
 }
 
 func rewrittenIds(rewrites []bodyRewrite) []uint32 {