awards

internal/dxcc/adif_numbers.go

@@ -32,6 +32,29 @@ func EntityDXCC(name string) int {
 	return 0
 }
 
+// nameByDXCC reverses dxccByName (number → a representative entity name),
+// built once. When several names share a number, the longest (usually the most
+// complete) wins. Names are Title-cased for display.
+var nameByDXCC = func() map[int]string {
+	m := make(map[int]string, len(dxccByName))
+	for name, num := range dxccByName {
+		if cur, ok := m[num]; !ok || len(name) > len(cur) {
+			m[num] = name
+		}
+	}
+	return m
+}()
+
+// NameForDXCC returns a display name for an ADIF DXCC entity number, or "" if
+// unknown.
+func NameForDXCC(n int) string {
+	name, ok := nameByDXCC[n]
+	if !ok {
+		return ""
+	}
+	return strings.Title(name) //nolint:staticcheck // ASCII entity names
+}
+
 // dxccByCanon is dxccByName re-keyed by the canonical entity form, built once.
 var dxccByCanon = func() map[string]int {
 	m := make(map[string]int, len(dxccByName))