flutter/lib/pages/my/merchant/balance/balance.dart

// 钱包页面
import 'package:easy_refresh/easy_refresh.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:loopin/IM/controller/im_user_info_controller.dart';
import 'package:loopin/behavior/custom_scroll_behavior.dart';
import 'package:loopin/components/empty_tip.dart';
import 'package:loopin/components/my_toast.dart';
import 'package:loopin/pages/my/merchant/balance/controller.dart';
import 'package:loopin/utils/index.dart';

class Balance extends StatefulWidget {
  const Balance({super.key});

  @override
  State<Balance> createState() => _BalanceState();
}

class _BalanceState extends State<Balance> {
  final controller = Get.find<BalanceController>();

  @override
  void dispose() {
    Get.delete<BalanceController>();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text("我的余额")),
      body: ScrollConfiguration(
        behavior: CustomScrollBehavior().copyWith(scrollbars: false),
        child: Column(
          children: [
            // 上半部分：余额 + 充值
            Container(
              padding: const EdgeInsets.all(16),
              color: Colors.blueAccent,
              width: double.infinity,
              child: Obx(() {
                final ctl = Get.find<ImUserInfoController>();
                final role = ctl.role.value;
                final isLeader = Utils.hasRole(role, 5);
                return Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    const Text(
                      "钱包余额",
                      style: TextStyle(color: Colors.white, fontSize: 16),
                    ),
                    const SizedBox(height: 8),
                    Text(
                      "¥ ${controller.balance.value.toStringAsFixed(2)}",
                      style: const TextStyle(
                        color: Colors.white,
                        fontSize: 28,
                        fontWeight: FontWeight.bold,
                      ),
                    ),
                    // if (isLeader) const SizedBox(height: 12),
                    Row(
                      children: [
                        ElevatedButton(
                          onPressed: () async {
                            // 加充值
                            // controller.recharge(money: '0.1');
                            final money = await showDialog<String>(
                              context: context,
                              builder: (context) {
                                String input = "";
                                return AlertDialog(
                                  title: Text("请输入充值金额"),
                                  content: TextField(
                                    keyboardType: TextInputType.numberWithOptions(decimal: true),
                                    decoration: InputDecoration(
                                      hintText: "请输入50~200之间的金额",
                                    ),
                                    onChanged: (value) => input = value,
                                  ),
                                  actions: [
                                    TextButton(
                                      onPressed: () => Navigator.of(context).pop(), // 取消
                                      child: Text("取消"),
                                    ),
                                    TextButton(
                                      onPressed: () {
                                        final num? value = num.tryParse(input);
                                        if (value == null) {
                                          Navigator.of(context).pop();
                                          MyToast().tip(title: '请输入正确的金额');
                                          return;
                                        }
                                        if (value < 0 || value > 200) {
                                          Navigator.of(context).pop();
                                          MyToast().tip(title: '金额必须在 50 ~ 200 之间');
                                          return;
                                        }
                                        Navigator.of(context).pop(input); // 返回合法输入
                                      },
                                      child: Text("确定"),
                                    ),
                                  ],
                                );
                              },
                            );

                            if (money != null && money.isNotEmpty) {
                              controller.recharge(money: money);
                            }
                          },
                          style: ElevatedButton.styleFrom(
                            backgroundColor: Colors.orange,
                          ),
                          child: const Text("充值"),
                        ),
                        SizedBox(width: 20),
                        //
                        ElevatedButton(
                          onPressed: () async {
                            // onWithdrawPressed();
                            // 提现
                            if (controller.balance.value < 10) {
                              MyToast().tip(title: '钱包余额不足');
                              return;
                            }
                            final money = await showDialog<String>(
                              context: context,
                              builder: (context) {
                                String input = "";
                                return AlertDialog(
                                  title: Text("请输入提现金额"),
                                  content: TextField(
                                    maxLength: 5,
                                    maxLines: 1,
                                    keyboardType: TextInputType.numberWithOptions(decimal: true),
                                    decoration: InputDecoration(
                                      hintText: "当前可提现金额为:${controller.balance.value}",
                                    ),
                                    onChanged: (value) => input = value,
                                  ),
                                  actions: [
                                    TextButton(
                                      onPressed: () => Navigator.of(context).pop(), // 取消
                                      child: Text("取消"),
                                    ),
                                    TextButton(
                                      onPressed: () {
                                        final num? value = num.tryParse(input);
                                        if (value == null || value < 0.1) {
                                          Navigator.of(context).pop();
                                          MyToast().tip(title: '请输入正确的金额');
                                          return;
                                        }
                                        if (value > controller.balance.value) {
                                          Navigator.of(context).pop();
                                          MyToast().tip(title: '您当前可提现余额为：${controller.balance.value}');
                                          return;
                                        }
                                        if (value > 200) {
                                          Navigator.of(context).pop();
                                          MyToast().tip(title: '提现金额上限为200');
                                          return;
                                        }
                                        Navigator.of(context).pop(input); // 返回合法输入
                                      },
                                      child: Text("确定"),
                                    ),
                                  ],
                                );
                              },
                            );

                            if (money != null && money.isNotEmpty) {
                              controller.withDraw(money: money);
                            }
                          },
                          style: ElevatedButton.styleFrom(
                            backgroundColor: Colors.orange,
                          ),
                          child: const Text("提现"),
                        ),
                      ],
                    ),
                  ],
                );
              }),
            ),

            //提示内容
            Padding(
              padding: const EdgeInsets.all(16.0),
              child: SizedBox(
                width: double.infinity, // 占满父级宽度
                child: Text(
                  '提示：\n'
                  '1. 余额不可用于购买商品\n'
                  '2. 余额只支持提现到授权的微信账户内\n'
                  '3. 提现申请通过后将于一个工作日内到账\n',
                  style: TextStyle(
                    fontSize: 14,
                    color: Colors.red[700],
                  ),
                  textAlign: TextAlign.left,
                ),
              ),
            ),

            // 下半部分：流水记录分页列表
            Expanded(
              child: EasyRefresh.builder(
                callLoadOverOffset: 20, //触底距离
                callRefreshOverOffset: 20, // 下拉距离
                header: ClassicHeader(
                  dragText: '下拉刷新',
                  armedText: '释放刷新',
                  readyText: '加载中...',
                  processingText: '加载中...',
                  processedText: '加载完成',
                  failedText: '加载失败，请重试',
                  messageText: '最后更新于 %T',
                ),
                footer: ClassicFooter(
                  dragText: '加载更多',
                  armedText: '释放加载',
                  readyText: '加载中...',
                  processingText: '加载中...',
                  processedText: '加载完成',
                  noMoreText: '没有更多了～',
                  failedText: '加载失败，请重试',
                  messageText: '最后更新于 %T',
                ),

                onRefresh: () async {
                  await controller.getData(reset: true);
                },
                onLoad: () async {
                  if (controller.hasMore.value) {
                    await controller.getData();
                    return controller.hasMore.value ? IndicatorResult.success : IndicatorResult.noMore;
                  }
                },
                childBuilder: (context, physics) {
                  return Obx(
                    () {
                      // 数据加载中
                      if (controller.isLoading.value && controller.data.isEmpty) {
                        return Center(
                          child: CircularProgressIndicator(),
                        );
                      }
                      //空
                      if (controller.data.isEmpty) {
                        return EmptyTip();
                      }
                      return ListView.builder(
                        physics: physics,
                        itemCount: controller.data.length,
                        itemBuilder: (context, index) {
                          final tx = controller.data[index];

                          return ListTile(
                            title: Text(tx.sourceName), // 来源
                            subtitle: Text(tx.createTime), // 时间
                            trailing: Text(
                              "变动金额：${tx.changeType == 1 ? '+' : '-'}${tx.changeAmount}", // 变动金额
                              style: TextStyle(
                                fontWeight: FontWeight.bold,
                                color: tx.changeType == 1 ? Colors.green : Colors.red,
                              ),
                            ),
                          );
                        },
                      );
                    },
                  );
                },
              ),
            ),
          ],
        ),
      ),
    );
  }
}

String _handleSource(String source) {
  String res;
  if (source == '3') {
    res = '充值';
  } else if (source == '2') {
    res = '待确认';
  } else if (source == '1') {
    res = '提现';
  } else if (source == '5') {
    res = '提现退款';
  } else if (source == '4') {
    res = '充值退款';
  } else {
    res = '未知';
  }
  return res;
}