马良AI写作初始化仓库

AINoval/lib/screens/admin/widgets/credit_operation_dialog.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import '../../../models/admin/admin_models.dart';
+
+class CreditOperationDialog extends StatefulWidget {
+  final AdminUser user;
+  final bool isAdd; // true为添加积分，false为扣减积分
+
+  const CreditOperationDialog({
+    super.key,
+    required this.user,
+    required this.isAdd,
+  });
+
+  @override
+  State<CreditOperationDialog> createState() => _CreditOperationDialogState();
+}
+
+class _CreditOperationDialogState extends State<CreditOperationDialog> {
+  final _formKey = GlobalKey<FormState>();
+  final _amountController = TextEditingController();
+  final _reasonController = TextEditingController();
+
+  @override
+  void dispose() {
+    _amountController.dispose();
+    _reasonController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return AlertDialog(
+      title: Text(
+        widget.isAdd ? '添加积分' : '扣减积分',
+        style: Theme.of(context).textTheme.titleLarge?.copyWith(
+          fontWeight: FontWeight.bold,
+        ),
+      ),
+      content: SizedBox(
+        width: 400,
+        child: Form(
+          key: _formKey,
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              // 用户信息
+              Container(
+                padding: const EdgeInsets.all(12),
+                decoration: BoxDecoration(
+                  color: Theme.of(context).colorScheme.surfaceVariant,
+                  borderRadius: BorderRadius.circular(8),
+                ),
+                child: Row(
+                  children: [
+                    Icon(
+                      Icons.person,
+                      color: Theme.of(context).colorScheme.onSurfaceVariant,
+                    ),
+                    const SizedBox(width: 8),
+                    Expanded(
+                      child: Column(
+                        crossAxisAlignment: CrossAxisAlignment.start,
+                        children: [
+                          Text(
+                            widget.user.username,
+                            style: Theme.of(context).textTheme.titleMedium?.copyWith(
+                              fontWeight: FontWeight.w600,
+                            ),
+                          ),
+                          Text(
+                            '当前积分: ${widget.user.credits}',
+                            style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                              color: Theme.of(context).colorScheme.primary,
+                            ),
+                          ),
+                        ],
+                      ),
+                    ),
+                  ],
+                ),
+              ),
+              const SizedBox(height: 16),
+
+              // 积分数量输入
+              TextFormField(
+                controller: _amountController,
+                decoration: InputDecoration(
+                  labelText: '积分数量',
+                  hintText: '请输入${widget.isAdd ? "添加" : "扣减"}的积分数量',
+                  prefixIcon: const Icon(Icons.monetization_on),
+                  border: const OutlineInputBorder(),
+                ),
+                keyboardType: TextInputType.number,
+                inputFormatters: [
+                  FilteringTextInputFormatter.digitsOnly,
+                ],
+                validator: (value) {
+                  if (value == null || value.isEmpty) {
+                    return '请输入积分数量';
+                  }
+                  final amount = int.tryParse(value);
+                  if (amount == null || amount <= 0) {
+                    return '请输入有效的积分数量';
+                  }
+                  if (!widget.isAdd && amount > widget.user.credits) {
+                    return '扣减积分不能超过用户当前积分';
+                  }
+                  return null;
+                },
+              ),
+              const SizedBox(height: 16),
+
+              // 操作原因输入
+              TextFormField(
+                controller: _reasonController,
+                decoration: InputDecoration(
+                  labelText: '操作原因',
+                  hintText: '请输入${widget.isAdd ? "添加" : "扣减"}积分的原因',
+                  prefixIcon: const Icon(Icons.note),
+                  border: const OutlineInputBorder(),
+                ),
+                maxLines: 3,
+                validator: (value) {
+                  if (value == null || value.trim().isEmpty) {
+                    return '请输入操作原因';
+                  }
+                  if (value.trim().length < 5) {
+                    return '操作原因至少需要5个字符';
+                  }
+                  return null;
+                },
+              ),
+            ],
+          ),
+        ),
+      ),
+      actions: [
+        TextButton(
+          onPressed: () => Navigator.of(context).pop(),
+          child: const Text('取消'),
+        ),
+        ElevatedButton(
+          onPressed: _handleSubmit,
+          style: ElevatedButton.styleFrom(
+            backgroundColor: widget.isAdd 
+              ? Theme.of(context).colorScheme.primary
+              : Theme.of(context).colorScheme.error,
+          ),
+          child: Text(
+            widget.isAdd ? '添加积分' : '扣减积分',
+            style: TextStyle(
+              color: widget.isAdd 
+                ? Theme.of(context).colorScheme.onPrimary
+                : Theme.of(context).colorScheme.onError,
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+
+  void _handleSubmit() {
+    if (_formKey.currentState?.validate() == true) {
+      final amount = int.parse(_amountController.text);
+      final reason = _reasonController.text.trim();
+      
+      Navigator.of(context).pop({
+        'amount': amount,
+        'reason': reason,
+      });
+    }
+  }
+}