/// 订单通知
library;

import 'dart:convert';

import 'package:easy_refresh/easy_refresh.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:loopin/IM/im_service.dart';
import 'package:loopin/behavior/custom_scroll_behavior.dart';
import 'package:loopin/components/empty_tip.dart';
import 'package:loopin/components/network_or_asset_image.dart';
import 'package:loopin/models/conversation_type.dart';
import 'package:loopin/models/notify_message.type.dart';
import 'package:loopin/pages/my/merchant/balance/balance.dart';
import 'package:loopin/pages/my/merchant/balance/controller.dart';
import 'package:loopin/styles/index.dart';
import 'package:loopin/utils/index.dart';
import 'package:tencent_cloud_chat_sdk/models/v2_tim_conversation.dart';
import 'package:tencent_cloud_chat_sdk/models/v2_tim_message.dart';

// order, 订单

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

  @override
  State<OrderNotify> createState() => OrderNotifyState();
}

class OrderNotifyState extends State<OrderNotify> with SingleTickerProviderStateMixin {
  bool isLoading = false; // 是否在加载中
  RxBool hasMore = true.obs; // 是否还有更多数据
  String page = '';

  ///-------------------
  V2TimConversation? conv;
  RxList<V2TimMessage> msgList = <V2TimMessage>[].obs;

  @override
  void initState() {
    super.initState();
    if (Get.arguments != null && Get.arguments is V2TimConversation) {
      // 如果有参数
      conv = Get.arguments as V2TimConversation;
      logger.e('lastmsg:$conv');

      final lastmsg = conv?.lastMessage;
      if (lastmsg != null) {
        msgList.add(lastmsg);
        getMsgData();
      }
    }
  }

  @override
  void dispose() {
    cleanUnRead();
    super.dispose();
  }

  void cleanUnRead() async {
    if ((conv?.unreadCount ?? 0) > 0) {
      await ImService.instance.clearConversationUnreadCount(conversationID: conv?.conversationID ?? '');
    }
  }

  // 分页获取全部数据
  Future<void> getMsgData() async {
    // 获取最旧一条消息作为游标
    V2TimMessage? lastRealMsg;
    lastRealMsg = msgList.last;
    final res = await ImService.instance.getHistoryMessageList(
      userID: ConversationType.order.name, // userID为固定的order
      lastMsg: lastRealMsg,
    );
    if (res.success && res.data != null) {
      msgList.addAll(res.data!);
      logger.e(msgList);
      if (res.data!.isEmpty) {
        hasMore.value = false;
      }
      logger.i('聊天数据加载成功');
    } else {
      logger.e('聊天数据加载失败:${res.desc}');
    }
  }

  // 下拉刷新
  Future<void> handleRefresh() async {
    await Future.delayed(Duration(seconds: 5));
    setState(() {});
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.grey[50],
      appBar: AppBar(
        centerTitle: true,
        forceMaterialTransparency: true,
        bottom: PreferredSize(
          preferredSize: Size.fromHeight(1.0),
          child: Container(
            color: Colors.grey[300],
            height: 1.0,
          ),
        ),
        title: Container(
          padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
          child: Row(
            mainAxisSize: MainAxisSize.min,
            children: [
              const SizedBox(width: 4),
              Text(
                '订单通知',
                style: TextStyle(
                  color: Colors.black,
                  fontSize: 16,
                  fontWeight: FontWeight.bold,
                ),
              ),
            ],
          ),
        ),
        actions: [],
      ),
      body: ScrollConfiguration(
        behavior: CustomScrollBehavior().copyWith(scrollbars: false),
        child: Column(
          children: [
            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 handleRefresh();
                },
                onLoad: () async {
                  if (hasMore.value) {
                    await getMsgData();
                    return hasMore.value ? IndicatorResult.success : IndicatorResult.noMore;
                  }
                },
                childBuilder: (context, physics) {
                  return Obx(
                    () {
                      if (msgList.isEmpty) return EmptyTip();

                      return ListView.builder(
                        shrinkWrap: true,
                        physics: physics,
                        itemCount: msgList.length,
                        itemBuilder: (context, index) {
                          //检测cloudCustomData
                          /// 订单编号[orderID]
                          /// 订单金额[amount]
                          /// 商品名称[name]
                          /// 商品描述[describe]
                          /// 商品价格[price]
                          /// 商品主图[pic]

                          //----正式数据
                          V2TimMessage msg = msgList[index];
                          // V2TimCustomElem element = msgList[index].customElem;
                          final cloudCustomData = msgList[index].cloudCustomData ?? '';
                          logger.w(cloudCustomData);
                          final desc = msgList[index].customElem?.desc;
                          String? jsonData = msgList[index].customElem?.data;
                          logger.e(msgList[index].toJson());
                          jsonData = (jsonData == null || jsonData.isEmpty) ? '{"faceUrl":"","nickName":"data为空","userID":"213213"}' : jsonData;
                          var item = jsonDecode(jsonData);
                          if (item is Map<String, dynamic>) {
                            item = jsonDecode(jsonData);
                          } else {
                            // 如果不是 Map，兜底处理
                            item = {
                              "faceUrl": "",
                              "nickName": "数据异常",
                              "userID": "",
                            };
                          }
                          final showName = conv?.showName ?? '未知';
                          // logger.w(element.toJson());

                          // ----测试数据
                          // final jsonData = '{"faceUrl":"","nickName":"测试昵称","userID":"213213"}';
                          // final item = jsonDecode(jsonData); // 数据
                          // final desc = '您购买的巧克力已经下单成功您购买的巧克力已经下单成功您购买的巧克力已经下单成功';
                          // final cloudCustomData = 'orderRefund';
                          // V2TimMessage msg = V2TimMessage(elemType: 2, isRead: index > 2 ? true : false);
                          // -----------
                          return Container(
                            width: double.infinity,
                            padding: const EdgeInsets.symmetric(horizontal: 15.0, vertical: 10.0),
                            child: Row(
                              children: <Widget>[
                                Expanded(
                                  child: InkWell(
                                    onTap: () async {
                                      if (cloudCustomData == NotifyMessageTypeConstants.orderWithDraw ||
                                          cloudCustomData == NotifyMessageTypeConstants.orderRecharge) {
                                        // 去余额
                                        Get.put(BalanceController());
                                        Get.to(() => Balance());
                                      } else {
                                        // 点击去订单详情
                                        Get.toNamed('/order/detail', arguments: {'orderId': item['orderID']});
                                      }
                                    },
                                    child: Card(
                                      shape: RoundedRectangleBorder(
                                        borderRadius: BorderRadius.circular(10),
                                      ),
                                      elevation: 2,
                                      child: Padding(
                                        padding: const EdgeInsets.all(10.0),
                                        child: Column(
                                          crossAxisAlignment: CrossAxisAlignment.start,
                                          children: <Widget>[
                                            // 顶部：头像 + 商品名
                                            Row(
                                              children: [
                                                ClipOval(
                                                  child: NetworkOrAssetImage(
                                                    imageUrl: msg.faceUrl,
                                                    width: 25,
                                                    height: 25,
                                                  ),
                                                ),
                                                const SizedBox(width: 8),
                                                Expanded(
                                                  child: Text(
                                                    showName,
                                                    // item['name'] ?? '未知商品名称',
                                                    // cloudCustomData == NotifyMessageTypeConstants.orderWithDraw
                                                    //     ? (conv?.showName ?? '未知')
                                                    //     : ((item['name'] as String?) ?? '未知商品名称'),
                                                    maxLines: 1,
                                                    overflow: TextOverflow.ellipsis,
                                                    style: const TextStyle(
                                                      fontSize: 14,
                                                      fontWeight: FontWeight.normal,
                                                      color: Colors.black54,
                                                    ),
                                                  ),
                                                ),
                                              ],
                                            ),

                                            const SizedBox(height: 8),
                                            const Divider(height: 1, thickness: 1, color: Color(0xFFE0E0E0)),
                                            const SizedBox(height: 4),

                                            Text(
                                              _transLabel(cloudCustom: cloudCustomData, status: item['status']),
                                              maxLines: 1,
                                              overflow: TextOverflow.ellipsis,
                                              style: const TextStyle(
                                                color: Colors.black,
                                                fontSize: 16.0,
                                                fontWeight: FontWeight.bold,
                                              ),
                                            ),

                                            const SizedBox(height: 2),

                                            // 时间
                                            Text(
                                              Utils.formatTime(msg.timestamp ?? DateTime.now().millisecondsSinceEpoch ~/ 1000),
                                              style: TextStyle(
                                                color: Colors.grey[600],
                                                fontSize: 12,
                                              ),
                                            ),
                                            const SizedBox(height: 8),

                                            // 内容：描述 + 时间 + 图片
                                            Row(
                                              crossAxisAlignment: CrossAxisAlignment.center,
                                              children: <Widget>[
                                                // 商品首图
                                                Visibility(
                                                  visible: item['pic'] != null && item['pic'].toString().isNotEmpty,
                                                  child: NetworkOrAssetImage(
                                                    imageUrl: item['pic'],
                                                    placeholderAsset: 'assets/images/bk.jpg',
                                                    width: 50,
                                                    height: 50,
                                                  ),
                                                ),
                                                SizedBox(
                                                  width: 8,
                                                ),
                                                // 商品描述
                                                Expanded(
                                                  child: Text(
                                                    desc ?? '未知描述',
                                                    maxLines: 2,
                                                    overflow: TextOverflow.ellipsis,
                                                    style: const TextStyle(color: Colors.black87, fontSize: 12.0),
                                                  ),
                                                ),

                                                const SizedBox(width: 20),

                                                // 未读角标
                                                Visibility(
                                                  visible: !(msg.isRead ?? true),
                                                  child: FStyle.badge(0, isdot: true),
                                                ),
                                              ],
                                            ),

                                            SizedBox(
                                              height: 8,
                                            ),
                                            const Divider(height: 1, thickness: 1, color: Color(0xFFE0E0E0)),

                                            Padding(
                                              padding: const EdgeInsets.symmetric(horizontal: 10.0, vertical: 8.0),
                                              child: Row(
                                                children: [
                                                  const Text('查看详情'),
                                                  const Spacer(),
                                                  const Icon(Icons.arrow_forward_ios, size: 16, color: Colors.grey),
                                                ],
                                              ),
                                            ),
                                          ],
                                        ),
                                      ),
                                    ),
                                  ),
                                ),
                              ],
                            ),
                          );
                        },
                      );
                    },
                  );
                },
              ),
            ),
          ],
        ),
      ),
    );
  }

  /// 解析标签
  String _transLabel({required String cloudCustom, String? status}) {
    //
    var str = status == null
        ? '未知状态'
        : status == '1'
            ? '成功'
            : '失败';
    if (NotifyMessageTypeConstants.orderPay == cloudCustom) {
      return '下单成功';
    } else if (NotifyMessageTypeConstants.orderRecharge == cloudCustom) {
      return '充值成功';
    } else if (NotifyMessageTypeConstants.orderRefund == cloudCustom) {
      return '退款$str';
    } else if (NotifyMessageTypeConstants.orderWithDraw == cloudCustom) {
      return '提现$str';
    } else {
      return '未知action';
    }
  }
}