feat: implement album handling rules and refactor related logic

pkg/rule/is_album.go

@@ -0,0 +1,38 @@
+package rule
+
+import (
+	ruleenum "github.com/krau/SaveAny-Bot/pkg/enums/rule"
+)
+
+var _ RuleClass[bool] = (*RuleMediaType)(nil)
+
+type RuleMediaType struct {
+	storInfo
+	matchAlbum bool
+}
+
+func (r RuleMediaType) Type() ruleenum.RuleType {
+	return ruleenum.IsAlbum
+}
+
+func (r RuleMediaType) Match(input bool) (bool, error) {
+	return r.matchAlbum == input, nil
+}
+
+func (r RuleMediaType) StorageName() string {
+	return r.storName
+}
+
+func (r RuleMediaType) StoragePath() string {
+	return r.storPath
+}
+
+func NewRuleMediaType(storName, storPath string, matchAlbum bool) (*RuleMediaType, error) {
+	return &RuleMediaType{
+		storInfo: storInfo{
+			storName: storName,
+			storPath: storPath,
+		},
+		matchAlbum: matchAlbum,
+	}, nil
+}