Implement Yandex storage backend - fixes #234

yandex/api/sort_mode.go

@@ -0,0 +1,79 @@
+package src
+
+import "strings"
+
+// SortMode struct - sort mode
+type SortMode struct {
+	mode string
+}
+
+// Default - sort mode
+func (m *SortMode) Default() *SortMode {
+	return &SortMode{
+		mode: "",
+	}
+}
+
+// ByName - sort mode
+func (m *SortMode) ByName() *SortMode {
+	return &SortMode{
+		mode: "name",
+	}
+}
+
+// ByPath - sort mode
+func (m *SortMode) ByPath() *SortMode {
+	return &SortMode{
+		mode: "path",
+	}
+}
+
+// ByCreated - sort mode
+func (m *SortMode) ByCreated() *SortMode {
+	return &SortMode{
+		mode: "created",
+	}
+}
+
+// ByModified - sort mode
+func (m *SortMode) ByModified() *SortMode {
+	return &SortMode{
+		mode: "modified",
+	}
+}
+
+// BySize - sort mode
+func (m *SortMode) BySize() *SortMode {
+	return &SortMode{
+		mode: "size",
+	}
+}
+
+// Reverse - sort mode
+func (m *SortMode) Reverse() *SortMode {
+	if strings.HasPrefix(m.mode, "-") {
+		return &SortMode{
+			mode: m.mode[1:],
+		}
+	}
+	return &SortMode{
+		mode: "-" + m.mode,
+	}
+}
+
+func (m *SortMode) String() string {
+	return m.mode
+}
+
+// UnmarshalJSON sort mode
+func (m *SortMode) UnmarshalJSON(value []byte) error {
+	if value == nil || len(value) == 0 {
+		m.mode = ""
+		return nil
+	}
+	m.mode = string(value)
+	if strings.HasPrefix(m.mode, "\"") && strings.HasSuffix(m.mode, "\"") {
+		m.mode = m.mode[1 : len(m.mode)-1]
+	}
+	return nil
+}