优化结构

internal/paymentkit/json.go

@@ -0,0 +1,66 @@
+package paymentkit
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+)
+
+func JSONObject(raw []byte) map[string]any {
+	var value any
+	if json.Unmarshal(raw, &value) != nil {
+		return nil
+	}
+	object, _ := value.(map[string]any)
+	return object
+}
+
+func NestedString(value any, keys ...string) string {
+	found := nestedValue(value, keys...)
+	if found == nil {
+		return ""
+	}
+	return strings.TrimSpace(fmt.Sprint(found))
+}
+
+func StringAtPath(value any, path string) string {
+	found := ValueAtPath(value, path)
+	if found == nil {
+		return ""
+	}
+	return strings.TrimSpace(fmt.Sprint(found))
+}
+
+func ValueAtPath(value any, path string) any {
+	path = strings.TrimSpace(path)
+	if path == "" {
+		return nil
+	}
+	current := value
+	for _, part := range strings.Split(path, ".") {
+		object, ok := current.(map[string]any)
+		if !ok {
+			return nil
+		}
+		current = object[part]
+	}
+	return current
+}
+
+func nestedValue(value any, keys ...string) any {
+	object, ok := value.(map[string]any)
+	if !ok {
+		return nil
+	}
+	for _, key := range keys {
+		if found, exists := object[key]; exists && found != nil && fmt.Sprint(found) != "" {
+			return found
+		}
+	}
+	for _, nestedKey := range []string{"data", "result", "order", "transaction", "response"} {
+		if found := nestedValue(object[nestedKey], keys...); found != nil {
+			return found
+		}
+	}
+	return nil
+}