feat: SEO backend data (1/4)

internal/infrastructure/useCases/purgePlan.go

@@ -86,10 +86,9 @@ func groupByHash(images []image.Image) [][]image.Image {
 }
 
 func usageOf(img image.Image, articles []article.Article) int {
-	storedName := image.StoredName(img.Path)
 	used := 0
 	for _, a := range articles {
-		if strings.Contains(a.Body, storedName) {
+		if articleMentionsImage(a, img) {
 			used++
 		}
 	}
@@ -135,16 +134,16 @@ func isBetterToKeep(candidate, current image.Image, usage map[uint32]int) bool {
 }
 
 func articlesUsingCopies(group purgeGroup, members []image.Image, articles []article.Article) []uint32 {
-	mergedNames := []string{}
+	merged := []image.Image{}
 	for _, member := range members {
 		if member.ID != group.kept.ID {
-			mergedNames = append(mergedNames, image.StoredName(member.Path))
+			merged = append(merged, member)
 		}
 	}
 	ids := []uint32{}
 	for _, a := range articles {
-		for _, name := range mergedNames {
-			if strings.Contains(a.Body, name) {
+		for _, copied := range merged {
+			if articleMentionsImage(a, copied) {
 				ids = append(ids, a.ID)
 				break
 			}