feat: update cache; fix: user logout

internal/database/cache/cache.go

@@ -0,0 +1,63 @@
+package cache
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"time"
+)
+
+type Cache interface {
+	Get(ctx context.Context, key string) ([]byte, error)
+	Gets(ctx context.Context, keys ...string) ([][]byte, error)
+	GetScan(ctx context.Context, key string) Scanner
+	GetEx(ctx context.Context, key string, duration time.Duration) ([]byte, error)
+	GetExScan(ctx context.Context, key string, duration time.Duration) Scanner
+	// Set value 会被序列化, 优先使用 MarshalBinary 方法, 没有则执行 json.Marshal
+	Set(ctx context.Context, key string, value any) error
+	Sets(ctx context.Context, vm map[string]any) error
+	// SetEx value 会被序列化, 优先使用 MarshalBinary 方法, 没有则执行 json.Marshal
+	SetEx(ctx context.Context, key string, value any, duration time.Duration) error
+	Del(ctx context.Context, keys ...string) error
+	Close() error
+}
+
+var Client Cache
+
+type Scanner interface {
+	Scan(model any) error
+}
+
+type encoded_value interface {
+	MarshalBinary() ([]byte, error)
+}
+
+type decoded_value interface {
+	UnmarshalBinary(bs []byte) error
+}
+
+const (
+	Prefix = "upp:"
+)
+
+var ErrorKeyNotFound = errors.New("key not found")
+
+func handleValue(value any) ([]byte, error) {
+	var (
+		bs  []byte
+		err error
+	)
+
+	switch value.(type) {
+	case []byte:
+		return value.([]byte), nil
+	}
+
+	if imp, ok := value.(encoded_value); ok {
+		bs, err = imp.MarshalBinary()
+	} else {
+		bs, err = json.Marshal(value)
+	}
+
+	return bs, err
+}