K8s/Folders: Remove folder service from client (#94450)

* Support getting full path of UIDs
* Use full path to set parents field
* Update get folder test
* Add folder store test for getting with full path UIDs
* Add test for parsing parent titles
* Test nested folder create payload

pkg/registry/apis/folders/conversions.go

@@ -2,6 +2,7 @@ package folders
 
 import (
 	"fmt"
+	"regexp"
 	"strconv"
 	"time"
 
@@ -85,10 +86,12 @@ func UnstructuredToLegacyFolder(item unstructured.Unstructured, orgID int64) *fo
 		// #TODO add created by field if necessary
 		// CreatedBy: meta.GetCreatedBy(),
 		// UpdatedBy: meta.GetCreatedBy(),
-		URL:     getURL(meta, title),
-		Created: createdTime,
-		Updated: createdTime,
-		OrgID:   orgID,
+		URL:          getURL(meta, title),
+		Created:      createdTime,
+		Updated:      createdTime,
+		OrgID:        orgID,
+		Fullpath:     meta.GetFullPath(),
+		FullpathUIDs: meta.GetFullPathUIDs(),
 	}
 	return f
 }
@@ -183,6 +186,12 @@ func convertToK8sResource(v *folder.Folder, namespacer request.NamespaceMapper)
 	if v.ParentUID != "" {
 		meta.SetFolder(v.ParentUID)
 	}
+	if v.Fullpath != "" {
+		meta.SetFullPath(v.Fullpath)
+	}
+	if v.FullpathUIDs != "" {
+		meta.SetFullPathUIDs(v.FullpathUIDs)
+	}
 	f.UID = gapiutil.CalculateClusterWideUID(f)
 	return f, nil
 }
@@ -226,3 +235,22 @@ func getCreated(meta utils.GrafanaMetaAccessor) (*time.Time, error) {
 	}
 	return created, nil
 }
+
+func GetParentTitles(fullPath string) ([]string, error) {
+	// Find all forward slashes which aren't escaped
+	r, err := regexp.Compile(`[^\\](/)`)
+	if err != nil {
+		return nil, err
+	}
+	indices := r.FindAllStringIndex(fullPath, -1)
+
+	var start int
+	titles := []string{}
+	for _, i := range indices {
+		titles = append(titles, fullPath[start:i[0]+1])
+		start = i[0] + 2
+	}
+
+	titles = append(titles, fullPath[start:])
+	return titles, nil
+}

pkg/registry/apis/folders/conversions_test.go

@@ -0,0 +1,18 @@
+package folders
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetParentTitles(t *testing.T) {
+	path := "get\\/folder-folder-0/get\\/folder-folder-1/another"
+
+	titles, err := GetParentTitles(path)
+	require.Nil(t, err)
+	require.Equal(t, 3, len(titles))
+	require.Equal(t, "get\\/folder-folder-0", titles[0])
+	require.Equal(t, "get\\/folder-folder-1", titles[1])
+	require.Equal(t, "another", titles[2])
+}