import 'dart:convert';

import 'package:decimal/decimal.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:math_expressions/math_expressions.dart';
import 'package:sk_base_mobile/apis/api.dart';
import 'package:sk_base_mobile/models/base_search_more_controller.dart';
import 'package:sk_base_mobile/models/sale_quotaion_component.model.dart';
import 'package:sk_base_mobile/models/sale_quotaion_group.model.dart';
import 'package:sk_base_mobile/models/sale_quotation.model.dart';
import 'package:sk_base_mobile/models/sale_quotation_template.model.dart';
import 'package:sk_base_mobile/models/workbench.model.dart';
import 'package:sk_base_mobile/screens/sale_quotation/components/sale_quotation_group_search.dart';
import 'package:sk_base_mobile/services/storage.service.dart';
import 'package:sk_base_mobile/util/snack_bar.util.dart';
import 'package:sk_base_mobile/widgets/form_item/sk_multi_search_more.dart';
import 'package:sk_base_mobile/util/modal.util.dart';
import 'package:sk_base_mobile/util/screen_adaper_util.dart';
import 'package:pinyin/pinyin.dart';

class SaleQuotationController extends GetxController {
  static SaleQuotationController get to => Get.find();
  final RxList editingcell = RxList([null, null, null]);
  final GlobalKey<ScaffoldState> scaffoldKey = GlobalKey<ScaffoldState>();
  RxList<SaleQuotationModel> groups = RxList<SaleQuotationModel>([]);
  RxDouble totalCost = RxDouble(0.0);
  RxDouble totalPrice = RxDouble(0.0);
  RxBool isFormulaEditing = false.obs;
  RxString formula = '成本 * 1.3 / 0.864'.obs;
  RxList<SaleQuotationTemplateModel> templates = RxList([]);
  final List<WorkBenchModel> menus = [
    WorkBenchModel(title: '导出明细', icon: 'export.svg'),
    // WorkBenchModel(title: '模板', icon: 'sale_quotation_template.svg'),
    WorkBenchModel(title: '配件管理', icon: 'product.svg'),
    WorkBenchModel(title: '分组管理', icon: 'sale_quotation_group.svg'),
    WorkBenchModel(title: '计算公式', icon: 'sale_quotation_formula.svg'),
  ];
  RxString templateName = '默认'.obs;
  int? templateId;
  @override
  void onReady() {
    init();
    super.onReady();
  }

  Future<void> init() async {
    String? salesQuotation = StorageService.to.getString('salesQuotation');
    if (salesQuotation != null) {
      SaleQuotationTemplateModel editTemplate =
          SaleQuotationTemplateModel.fromJson(jsonDecode(salesQuotation));
      parseTemplateModel(editTemplate);
    }
    await getTemplates();
  }

  void parseTemplateModel(SaleQuotationTemplateModel editTemplate) {
    groups.assignAll(editTemplate.template.data);
    templateName.value = editTemplate.name ?? '';
    formula.value = editTemplate.template.formula;
    totalPrice.value = editTemplate.template.totalPrice?.toDouble() ?? 0.0;
    totalCost.value = editTemplate.template.totalCost?.toDouble() ?? 0.0;
    templateId = editTemplate.id;
  }

  /// 切换报价模板
  void changeTemplate(SaleQuotationTemplateModel templateModel) {
    parseTemplateModel(templateModel);
    saveToLocal();
  }

  /// 获取报价模板
  Future<void> getTemplates() async {
    final res = await Api.getSaleQuotationTemplate();
    List<SaleQuotationTemplateModel> newList = res.data!.items
        .map((e) => SaleQuotationTemplateModel.fromJson(e))
        .toList();
    templates.assignAll(newList);
  }

  /// 实时计算总数
  void calculateTotal({String? newFormula}) {
    //计算groups中所有items中的amout总和
    totalCost.value = groups.fold<double>(0, (previousValue, element) {
      return previousValue +
          element.items.fold<double>(0, (previousValue, element) {
            return previousValue + element.amount;
          });
    });
    Parser p = Parser();
    Expression exp = p.parse(newFormula ?? formula.value);
    Variable x = Variable('成本');
    ContextModel cm = ContextModel()..bindVariable(x, Number(totalCost.value));
    double eval = exp.evaluate(EvaluationType.REAL, cm);
    totalPrice.value = eval.toPrecision(2);
  }

  /// 实时计算数量，单价，总价之间的关系
  SaleQuotationItemModel calculateRow(
      SaleQuotationItemModel data, String changedField) {
    Decimal quantity = Decimal.fromInt(0);
    Decimal cost = Decimal.fromInt(0);
    Decimal amount = Decimal.fromInt(0);
    if (data.quantity != 0) {
      quantity = Decimal.parse('${data.quantity}');
    }
    if (data.cost != 0) {
      cost = Decimal.parse('${data.cost}');
    }
    if (data.amount != 0) {
      amount = Decimal.parse('${data.amount}');
    }
    // 入库一般是先输入单价和数量，然后计算单价
    if (changedField != 'amount') {
      Decimal result = cost * quantity;
      data.amount = result != Decimal.zero ? result.toDouble() : 0;
    }

    if (changedField == 'amount' && quantity != Decimal.zero) {
      Decimal result =
          (amount / quantity).toDecimal(scaleOnInfinitePrecision: 10);
      data.cost = result != Decimal.zero ? result.toDouble() : 0.0;
    } else if (changedField != 'amount') {
      Decimal result = (cost * quantity);
      data.amount = result != Decimal.zero ? result.toDouble() : 0;
    }
    return data;
  }

  /// 处理行数据变化
  void afterRowChanges(int groupIndex, int rowIndex,
      SaleQuotationItemModel data, String changedField) {
    data = calculateRow(data, changedField);
    groups[groupIndex].items[rowIndex] = data;
    calculateTotal();
    stopEditing();
  }

  /// 停止编辑
  void stopEditing() {
    editingcell.assignAll([null, null, null]);
    saveToLocal();
  }

  /// 保存到本地持久化
  Future<void> saveToLocal() async {
    Map<String, dynamic> data = {
      'name': templateName.value,
      'template': {
        'data': groups.map((e) => e.toJson()).toList(),
        'totalCost': totalCost.value,
        'totalPrice': totalPrice.value,
        'formula': formula.value
      }
    };
    if (templateId != null) {
      data['id'] = templateId;
    }
    await StorageService.to.setString('salesQuotation', jsonEncode(data));
  }

  /// 保存到数据库
  Future<bool> saveToDatabase() async {
    if (templateId == null) {
      await Api.createSaleQuotationTemplate({
        'name': templateName.value,
        'template': {
          'data': groups.toJson(),
          'totalCost': totalCost.value,
          'totalPrice': totalPrice.value,
          'formula': formula.value
        }
      });
    } else {
      await Api.updateSaleQuotationTemplate(templateId!, {
        'name': templateName.value,
        'template': {
          'data': groups.toJson(),
          'totalCost': totalCost.value,
          'totalPrice': totalPrice.value,
          'formula': formula.value
        }
      });
    }
    await getTemplates();
    await SnackBarUtil().success('已保存');
    return true;
  }

  /// 删除模板
  Future<void> deleteTemplate(int templateId) async {
    await Api.deleteSaleQuotationTemplate(templateId);
    SnackBarUtil().success('已删除');
  }

  /// 添加分组
  void addGroup() async {
    final controller = Get.put(GroupSearchMoreController());
    // 选择组件  选择分组
    ModalUtil.showGeneralDialog(
            content: SkMutilSearchMore<SaleQuotationModel>(
              controller: controller,
              enablePullUp: false,
              enablePullDown: true,
              onOk: (List<int> indexes) {
                groups.addAll(controller.list.where((element) {
                  return indexes.contains(controller.list.indexOf(element));
                }));
                saveToLocal();
              },
              leadingBuilder: (index) {
                return Container(
                  padding: EdgeInsets.symmetric(
                      horizontal: ScreenAdaper.width(5),
                      vertical: ScreenAdaper.height(10)),
                  child: Row(
                    children: [
                      Text(
                        controller.list[index].name,
                        style: TextStyle(fontSize: ScreenAdaper.height(30)),
                      ),
                    ],
                  ),
                );
              },
            ),
            width: Get.width - ScreenAdaper.width(50))
        .then((value) => Get.delete<GroupSearchController>());
    calculateTotal();
  }

  /// 移除分组
  void removeGroup(int index) {
    groups.removeAt(index);
    calculateTotal();
    saveToLocal();
  }

  void addItems(int groupIndex) async {
    final controller = Get.put(ItemSearchMoreController());
    //   选择配件
    ModalUtil.showGeneralDialog(
            content: SkMutilSearchMore<SaleQuotationItemModel>(
              controller: controller,
              enablePullUp: false,
              enablePullDown: true,
              isDialog: true,
              onOk: (List<int> indexes) {
                groups[groupIndex]
                    .items
                    .addAll(controller.list.where((element) {
                  return indexes.contains(controller.list.indexOf(element));
                }));
                saveToLocal();
              },
              leadingBuilder: (index) {
                return Container(
                    padding: EdgeInsets.symmetric(
                        horizontal: ScreenAdaper.width(5),
                        vertical: ScreenAdaper.height(10)),
                    child: Column(
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children: [
                          Row(
                            children: [
                              Text(
                                controller.list[index].name,
                                style: TextStyle(
                                    fontSize: ScreenAdaper.height(30)),
                              ),
                            ],
                          ),
                          if (controller.list[index].spec != null)
                            Row(
                              children: [
                                Text(
                                  '型号：${controller.list[index].spec ?? ''}',
                                  textAlign: TextAlign.start,
                                  style: TextStyle(
                                      fontSize: ScreenAdaper.height(25)),
                                ),
                              ],
                            ),
                          Row(
                            children: [
                              Text(
                                '单价：￥${controller.list[index].cost}',
                                textAlign: TextAlign.start,
                                style: TextStyle(
                                    fontSize: ScreenAdaper.height(25)),
                              ),
                            ],
                          ),
                          if (controller.list[index].remark != null)
                            Row(
                              children: [
                                Text(
                                  '备注：${controller.list[index].remark ?? ''}',
                                  textAlign: TextAlign.start,
                                  style: TextStyle(
                                      fontSize: ScreenAdaper.height(25)),
                                ),
                              ],
                            ),
                        ]));
              },
            ),
            width: Get.width - ScreenAdaper.width(50))
        .then((value) => Get.delete<ItemSearchMoreController>());
    calculateTotal();
  }

  void removeItem(int groupIndex, int rowIndex) {
    groups[groupIndex].items.removeAt(rowIndex);
    calculateTotal();
  }

  void clearWorkbench() {
    groups.value = [];
    totalCost.value = 0.0;
    totalPrice.value = 0.0;
    formula.value = '成本 * 1.3 / 0.864';
    templateName.value = '默认';
    templateId = null;
    saveToLocal();
  }
}

class GroupSearchMoreController
    extends BaseSearchMoreController<SaleQuotationModel> {
  @override
  Future<List<SaleQuotationModel>> getData({bool isRefresh = false}) async {
    await Future.delayed(const Duration(seconds: 1));
    final res = await Api.getSaleQuotationGroups();
    List<SaleQuotationGroupModel> groups = res.data!.items
        .map((e) => SaleQuotationGroupModel.fromJson(e))
        .toList();

    List<SaleQuotationModel> newList = groups
        .map((e) => SaleQuotationModel(name: e.name!, items: RxList([])))
        .toList();
    // List<SaleQuotationModel> newList = [
    //   SaleQuotationModel(name: '中间过渡架电控部分', items: RxList([])),
    //   SaleQuotationModel(name: '端头架电控部分', items: RxList([])),
    //   SaleQuotationModel(name: '主阀部分', items: RxList([])),
    //   SaleQuotationModel(name: '自动反冲洗过滤器部分', items: RxList([])),
    //   SaleQuotationModel(name: '位移测量部分', items: RxList([])),
    //   SaleQuotationModel(name: '压力检测部分', items: RxList([])),
    //   SaleQuotationModel(name: '煤机定位部分', items: RxList([])),
    //   SaleQuotationModel(name: '姿态检测部分', items: RxList([])),
    // ];
    list.assignAll(newList
        .where((element) => PinyinHelper.getPinyin(element.name, separator: '')
            .contains(searchKey.value))
        .toList());
    return newList;
  }
}

class ItemSearchMoreController
    extends BaseSearchMoreController<SaleQuotationItemModel> {
  @override
  Future<List<SaleQuotationItemModel>> getData({bool isRefresh = false}) async {
    try {
      final res = await Api.getSaleQuotationComponents();
      List<SaleQuotationComponentModel> componets = res.data!.items
          .map((e) => SaleQuotationComponentModel.fromJson(e))
          .toList();
      List<SaleQuotationItemModel> newList = componets
          .map((e) => SaleQuotationItemModel(
              name: e.name!,
              cost: e.unitPrice ?? 0.0,
              unit: e.unit?.label ?? '',
              remark: e.remark))
          .toList();
      // List<SaleQuotationItemModel> newList = [
      //   SaleQuotationItemModel(
      //       name: '矿用本安型支架控制器', unit: '台', spec: 'ZDYZ-Z', cost: 4700),
      //   SaleQuotationItemModel(name: '矿用本安型电磁阀驱动器', cost: 1200),
      //   SaleQuotationItemModel(name: '矿用隔爆兼本安型电源', cost: 5700),
      //   SaleQuotationItemModel(name: '矿用本安型隔离耦合器', cost: 1200),
      //   SaleQuotationItemModel(name: '钢丝编织橡胶护套连接器', cost: 600),
      //   SaleQuotationItemModel(name: '钢丝编织橡胶护套连接器', remark: '控制器-控制器', cost: 400),
      //   SaleQuotationItemModel(name: '钢丝编织橡胶护套连接器', remark: '控制器-驱动器', cost: 500),
      //   SaleQuotationItemModel(
      //       name: '钢丝编织橡胶护套连接器', remark: '控制器-隔离耦合器', cost: 2000),
      //   SaleQuotationItemModel(name: '矿用本安型支架控制器', cost: 4700),
      //   SaleQuotationItemModel(name: '矿用本安型电磁阀驱动器', cost: 1200),
      //   SaleQuotationItemModel(name: '矿用隔爆兼本安型电源', cost: 5700),
      //   SaleQuotationItemModel(
      //       name: '电液换向阀(10功能10接口)', remark: '中间过渡架主阀组', cost: 13200),
      //   SaleQuotationItemModel(
      //       name: '电液换向阀(20功能20接口)', remark: '端头架主阀组', cost: 26500),
      //   SaleQuotationItemModel(
      //       name: '自动反冲洗过滤装置', remark: '流量:900L/min,过滤精度25μm', cost: 2000),
      //   SaleQuotationItemModel(name: '全自动反冲洗过滤器电缆', remark: '控制器-自动反冲洗'),
      //   SaleQuotationItemModel(name: '矿用本安型位移传感器'),
      //   SaleQuotationItemModel(name: '矿用本安型压力传感器'),
      //   SaleQuotationItemModel(name: '矿用本安型红外发射器'),
      //   SaleQuotationItemModel(name: '矿用本安型LED信号灯'),
      //   SaleQuotationItemModel(name: '倾角传感器'),
      //   SaleQuotationItemModel(name: '各类安装附件'),
      // ];
      list.assignAll(newList
          .where((element) =>
              PinyinHelper.getPinyin(element.name, separator: '')
                  .contains(searchKey.value))
          .toList());
      return newList;
    } catch (e) {
      return [];
    }
  }
}