From 1dc8b054eb3e18b153fce9f72b13476e29aca141 Mon Sep 17 00:00:00 2001
From: lash <dev@holbrook.no>
Date: Fri, 27 Sep 2024 21:10:03 +0100
Subject: [PATCH 1/2] Add sub-prefix db wrapper

---
 internal/storage/db.go      | 43 +++++++++++++++++++++++++++++
 internal/storage/db_test.go | 54 +++++++++++++++++++++++++++++++++++++
 internal/storage/storage.go |  2 +-
 3 files changed, 98 insertions(+), 1 deletion(-)
 create mode 100644 internal/storage/db.go
 create mode 100644 internal/storage/db_test.go

diff --git a/internal/storage/db.go b/internal/storage/db.go
new file mode 100644
index 0000000..b2ac6a9
--- /dev/null
+++ b/internal/storage/db.go
@@ -0,0 +1,43 @@
+package storage
+
+import (
+	"context"
+
+	"git.defalsify.org/vise.git/db"
+)
+
+const (
+	DATATYPE_USERSUB = 64
+)
+
+type SubPrefixDb struct {
+	store db.Db
+	pfx []byte
+}
+
+func NewSubPrefixDb(store db.Db, pfx []byte) *SubPrefixDb {
+	return &SubPrefixDb{
+		store: store,
+		pfx: pfx,
+	}
+}
+
+func(s *SubPrefixDb) toKey(k []byte) []byte {
+        return append(s.pfx, k...)
+}
+
+func(s *SubPrefixDb) Get(ctx context.Context, key []byte) ([]byte, error) {
+        s.store.SetPrefix(DATATYPE_USERSUB)
+	key = s.toKey(key)
+        v, err := s.store.Get(ctx, key)
+        if err != nil {
+                return nil, err
+        }
+        return v, nil
+}
+
+func(s *SubPrefixDb) Put(ctx context.Context, key []byte, val []byte) error {
+        s.store.SetPrefix(DATATYPE_USERSUB)
+	key = s.toKey(key)
+        return s.store.Put(ctx, key, val)
+}
diff --git a/internal/storage/db_test.go b/internal/storage/db_test.go
new file mode 100644
index 0000000..9e2183c
--- /dev/null
+++ b/internal/storage/db_test.go
@@ -0,0 +1,54 @@
+package storage
+
+import (
+	"bytes"
+	"context"
+	"testing"
+
+	memdb "git.defalsify.org/vise.git/db/mem"
+)
+
+func TestSubPrefix(t *testing.T) {
+	ctx := context.Background()
+	db := memdb.NewMemDb()
+	err := db.Connect(ctx, "")
+	if err != nil {
+		t.Fatal(err)
+	}
+	sdba := NewSubPrefixDb(db, []byte("tinkywinky"))
+	err = sdba.Put(ctx, []byte("foo"), []byte("dipsy"))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	r, err := sdba.Get(ctx, []byte("foo"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !bytes.Equal(r, []byte("dipsy")) {
+		t.Fatalf("expected 'dipsy', got %s", r)
+	}
+
+	sdbb := NewSubPrefixDb(db, []byte("lala"))
+	r, err = sdbb.Get(ctx, []byte("foo"))
+	if err == nil {
+		t.Fatal("expected not found")
+	}
+
+	err = sdbb.Put(ctx, []byte("foo"), []byte("pu"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	r, err = sdbb.Get(ctx, []byte("foo"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !bytes.Equal(r, []byte("pu")) {
+		t.Fatalf("expected 'pu', got %s", r)
+	}
+
+	r, err = sdba.Get(ctx, []byte("foo"))
+	if !bytes.Equal(r, []byte("dipsy")) {
+		t.Fatalf("expected 'dipsy', got %s", r)
+	}
+}
diff --git a/internal/storage/storage.go b/internal/storage/storage.go
index 009819e..8fc92f4 100644
--- a/internal/storage/storage.go
+++ b/internal/storage/storage.go
@@ -6,7 +6,7 @@ import (
 )
 
 const (
-	DATATYPE_CUSTOM = 128 
+	DATATYPE_EXTEND = 128 
 )
 
 type Storage struct {
-- 
2.45.2


From 2a93ea7a0c78a4f4e5bff5524aa1b2f95fe54953 Mon Sep 17 00:00:00 2001
From: lash <dev@holbrook.no>
Date: Fri, 27 Sep 2024 21:16:08 +0100
Subject: [PATCH 2/2] Remove out-of-context extend key

---
 internal/storage/storage.go | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/internal/storage/storage.go b/internal/storage/storage.go
index 8fc92f4..53f4392 100644
--- a/internal/storage/storage.go
+++ b/internal/storage/storage.go
@@ -5,10 +5,6 @@ import (
 	"git.defalsify.org/vise.git/persist"
 )
 
-const (
-	DATATYPE_EXTEND = 128 
-)
-
 type Storage struct {
 	Persister *persist.Persister
 	UserdataDb db.Db	
-- 
2.45.2