1 files changed, 19 insertions, 0 deletions
diff --git a/internal/app/strings.go b/internal/app/strings.go
new file mode 100644
index 00000000..e4465cee
--- /dev/null
+++ b/internal/app/strings.go
@@ -0,0 +1,19 @@
+package app
+
+import (
+	"strconv"
+
+	"hakurei.app/internal/app/state"
+)
+
+func newInt(v int) *stringPair[int]            { return &stringPair[int]{v, strconv.Itoa(v)} }
+func newID(id *state.ID) *stringPair[state.ID] { return &stringPair[state.ID]{*id, id.String()} }
+
+// stringPair stores a value and its string representation.
+type stringPair[T comparable] struct {
+	v T
+	s string
+}
+
+func (s *stringPair[T]) unwrap() T      { return s.v }
+func (s *stringPair[T]) String() string { return s.s }