refactor: more convenient ways customizing config

packages/fl_query/lib/src/collections/default_configs.dart

@@ -1,6 +1,8 @@
 import 'package:fl_query/src/collections/refresh_config.dart';
 import 'package:fl_query/src/collections/retry_config.dart';
+import 'package:flutter/material.dart';
 
+@immutable
 abstract class DefaultConstants {
   static const RetryConfig retryConfig = RetryConfig(
     maxRetries: 3,

packages/fl_query/lib/src/collections/refresh_config.dart

@@ -1,3 +1,7 @@
+import 'package:fl_query/src/collections/default_configs.dart';
+import 'package:fl_query/src/core/client.dart';
+import 'package:flutter/material.dart';
+
 class RefreshConfig {
   final Duration staleDuration;
   final Duration refreshInterval;
@@ -10,4 +14,48 @@ class RefreshConfig {
     required this.refreshOnMount,
     required this.refreshOnQueryFnChange,
   });
+
+  factory RefreshConfig.withDefaults(
+    BuildContext context, {
+    Duration? staleDuration,
+    Duration? refreshInterval,
+    bool? refreshOnMount,
+    bool? refreshOnQueryFnChange,
+  }) {
+    return QueryClient.of(context).refreshConfig.copyWith(
+          staleDuration: staleDuration,
+          refreshInterval: refreshInterval,
+          refreshOnMount: refreshOnMount,
+          refreshOnQueryFnChange: refreshOnQueryFnChange,
+        );
+  }
+
+  factory RefreshConfig.withConstantDefaults({
+    Duration? staleDuration,
+    Duration? refreshInterval,
+    bool? refreshOnMount,
+    bool? refreshOnQueryFnChange,
+  }) {
+    return DefaultConstants.refreshConfig.copyWith(
+      staleDuration: staleDuration,
+      refreshInterval: refreshInterval,
+      refreshOnMount: refreshOnMount,
+      refreshOnQueryFnChange: refreshOnQueryFnChange,
+    );
+  }
+
+  RefreshConfig copyWith({
+    Duration? staleDuration,
+    Duration? refreshInterval,
+    bool? refreshOnMount,
+    bool? refreshOnQueryFnChange,
+  }) {
+    return RefreshConfig(
+      staleDuration: staleDuration ?? this.staleDuration,
+      refreshInterval: refreshInterval ?? this.refreshInterval,
+      refreshOnMount: refreshOnMount ?? this.refreshOnMount,
+      refreshOnQueryFnChange:
+          refreshOnQueryFnChange ?? this.refreshOnQueryFnChange,
+    );
+  }
 }

packages/fl_query/lib/src/collections/retry_config.dart

@@ -1,6 +1,41 @@
+import 'package:fl_query/src/collections/default_configs.dart';
+import 'package:fl_query/src/core/client.dart';
+import 'package:flutter/material.dart';
+
 class RetryConfig {
   final int maxRetries;
   final Duration retryDelay;
 
   const RetryConfig({required this.maxRetries, required this.retryDelay});
+
+  factory RetryConfig.withDefaults(
+    BuildContext context, {
+    int? maxRetries,
+    Duration? retryDelay,
+  }) {
+    return QueryClient.of(context).retryConfig.copyWith(
+          maxRetries: maxRetries,
+          retryDelay: retryDelay,
+        );
+  }
+
+  factory RetryConfig.withConstantDefaults({
+    int? maxRetries,
+    Duration? retryDelay,
+  }) {
+    return DefaultConstants.retryConfig.copyWith(
+      maxRetries: maxRetries,
+      retryDelay: retryDelay,
+    );
+  }
+
+  RetryConfig copyWith({
+    int? maxRetries,
+    Duration? retryDelay,
+  }) {
+    return RetryConfig(
+      maxRetries: maxRetries ?? this.maxRetries,
+      retryDelay: retryDelay ?? this.retryDelay,
+    );
+  }
 }