get started on htmx fun

Signed-off-by: Xe Iaso <me@xeiaso.net>

1 files changed, 73 insertions, 0 deletions

diff --git a/gorm/valkeycache/valkeycache.go b/gorm/valkeycache/valkeycache.go
new file mode 100644
index 0000000..747d2dd
--- /dev/null
+++ b/gorm/valkeycache/valkeycache.go
@@ -0,0 +1,73 @@
+package valkeycache
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/go-gorm/caches/v4"
+	valkey "github.com/redis/go-redis/v9"
+)
+
+func New(rdb *valkey.Client) *Cache {
+	return &Cache{rdb: rdb}
+}
+
+type Cache struct {
+	rdb *valkey.Client
+}
+
+func (c *Cache) Get(ctx context.Context, key string, q *caches.Query[any]) (*caches.Query[any], error) {
+	res, err := c.rdb.Get(ctx, key).Result()
+	if err == valkey.Nil {
+		return nil, nil
+	}
+
+	if err != nil {
+		return nil, err
+	}
+
+	if err := q.Unmarshal([]byte(res)); err != nil {
+		return nil, err
+	}
+
+	return q, nil
+}
+
+func (c *Cache) Store(ctx context.Context, key string, val *caches.Query[any]) error {
+	res, err := val.Marshal()
+	if err != nil {
+		return err
+	}
+
+	c.rdb.Set(ctx, key, res, 300*time.Second) // Set proper cache time
+	return nil
+}
+
+func (c *Cache) Invalidate(ctx context.Context) error {
+	var (
+		cursor uint64
+		keys   []string
+	)
+	for {
+		var (
+			k   []string
+			err error
+		)
+		k, cursor, err = c.rdb.Scan(ctx, cursor, fmt.Sprintf("%s*", caches.IdentifierPrefix), 0).Result()
+		if err != nil {
+			return err
+		}
+		keys = append(keys, k...)
+		if cursor == 0 {
+			break
+		}
+	}
+
+	if len(keys) > 0 {
+		if _, err := c.rdb.Del(ctx, keys...).Result(); err != nil {
+			return err
+		}
+	}
+	return nil
+}