feat: image variants per image

internal/domain/image/imageDomain.go

@@ -99,10 +99,11 @@ func StoredName(imagePath string) string {
 type Sort string
 
 const (
-	SortNewest  Sort = "newest"
-	SortOldest  Sort = "oldest"
-	SortName    Sort = "name"
-	SortLargest Sort = "largest"
+	SortNewest    Sort = "newest"
+	SortOldest    Sort = "oldest"
+	SortName      Sort = "name"
+	SortLargest   Sort = "largest"
+	SortTotalSize Sort = "total_size"
 )
 
 type Filter string
@@ -113,13 +114,22 @@ const (
 	FilterDuplicates Filter = "duplicates"
 )
 
+type VariantsFilter string
+
+const (
+	VariantsAny     VariantsFilter = ""
+	VariantsWith    VariantsFilter = "with"
+	VariantsWithout VariantsFilter = "without"
+)
+
 type ListQuery struct {
-	Search string
-	Hash   string
-	Filter Filter
-	Sort   Sort
-	Limit  int
-	Cursor string
+	Search   string
+	Hash     string
+	Filter   Filter
+	Variants VariantsFilter
+	Sort     Sort
+	Limit    int
+	Cursor   string
 }
 
 func NewListQuery() ListQuery {
@@ -133,7 +143,12 @@ func (q ListQuery) Validate() error {
 		return ErrInvalidQuery
 	}
 	switch q.Sort {
-	case SortNewest, SortOldest, SortName, SortLargest:
+	case SortNewest, SortOldest, SortName, SortLargest, SortTotalSize:
+	default:
+		return ErrInvalidQuery
+	}
+	switch q.Variants {
+	case VariantsAny, VariantsWith, VariantsWithout:
 	default:
 		return ErrInvalidQuery
 	}
@@ -175,6 +190,19 @@ func SortImages(images []Image, order Sort) {
 	})
 }
 
+func SortImagesByTotalSize(images []Image, totals map[string]VariantFileTotals) {
+	totalOf := func(img Image) int64 {
+		return img.Size + totals[StoredName(img.Path)].Bytes
+	}
+	sort.SliceStable(images, func(i, j int) bool {
+		a, b := images[i], images[j]
+		if totalOf(a) != totalOf(b) {
+			return totalOf(a) > totalOf(b)
+		}
+		return a.ID < b.ID
+	})
+}
+
 type Counts struct {
 	All             int
 	DuplicateGroups int