import 'package:flutter/material.dart';
import 'package:get/get.dart';

class SetGroupInfoPage extends StatelessWidget {
  final String appBarTitle;

  /// 标题
  final String fieldLabel;

  /// 字段名
  final int maxLines;
  final int maxLength;
  final String? initialValue; // 初始值
  final ValueChanged<String> onSubmit; // 提交回调

  const SetGroupInfoPage({
    super.key,
    required this.appBarTitle,
    required this.fieldLabel,
    this.maxLines = 1,
    this.maxLength = 100,
    this.initialValue,
    required this.onSubmit,
  });

  @override
  Widget build(BuildContext context) {
    final controller = TextEditingController(text: initialValue);

    return Scaffold(
      appBar: AppBar(
        title: Text(
          appBarTitle,
          style: TextStyle(fontSize: 18),
        ),
        actions: [
          TextButton(
            onPressed: () {
              if (controller.text.trim().isEmpty) {
                ScaffoldMessenger.of(context).showSnackBar(
                  const SnackBar(content: Text('请输入内容')),
                );
                return;
              }
              onSubmit(controller.text.trim());
              Get.back();
            },
            child: const Text("保存", style: TextStyle(color: Colors.black)),
          ),
        ],
      ),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Text(fieldLabel, style: const TextStyle(fontSize: 16, fontWeight: FontWeight.bold)),
            const SizedBox(height: 10),
            TextField(
              controller: controller,
              maxLines: maxLines,
              maxLength: maxLength,
              decoration: InputDecoration(
                border: OutlineInputBorder(borderRadius: BorderRadius.circular(8)),
                hintText: "请输入 $fieldLabel",
                // counterText: "", // 去掉默认的计数提示
              ),
            ),
          ],
        ),
      ),
    );
  }
}