improved logging thing with the "debug" build tag.

log_debug.go

@@ -0,0 +1,24 @@
+//go:build debug
+
+package nostr
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+func debugLog(str string, args ...any) {
+	for i, v := range args {
+		switch v.(type) {
+		case []json.RawMessage:
+			j, _ := json.Marshal(v)
+			args[i] = string(j)
+		case []byte:
+			args[i] = string(v.([]byte))
+		case fmt.Stringer:
+			args[i] = v.(fmt.Stringer).String()
+		}
+	}
+
+	DebugLogger.Printf(str, args...)
+}