mohemm-flutter-app/lib/ui/leave_balance/leave_balance_screen.dart

import 'package:easy_localization/easy_localization.dart';
import 'package:flutter/material.dart';
import 'package:mohem_flutter_app/api/leave_balance_api_client.dart';
import 'package:mohem_flutter_app/classes/colors.dart';
import 'package:mohem_flutter_app/classes/utils.dart';
import 'package:mohem_flutter_app/config/routes.dart';
import 'package:mohem_flutter_app/extensions/int_extensions.dart';
import 'package:mohem_flutter_app/extensions/widget_extensions.dart';
import 'package:mohem_flutter_app/generated/locale_keys.g.dart';
import 'package:mohem_flutter_app/models/leave_balance/get_absence_transaction_list_model.dart';
import 'package:mohem_flutter_app/widgets/app_bar_widget.dart';
import 'package:mohem_flutter_app/widgets/balances_dashboard_widget.dart';
import 'package:mohem_flutter_app/widgets/item_detail_view_widget.dart';

class LeaveBalance extends StatefulWidget {
  LeaveBalance({Key? key}) : super(key: key);

  @override
  _LeaveBalanceState createState() {
    return _LeaveBalanceState();
  }
}

class _LeaveBalanceState extends State<LeaveBalance> {
  List<GetAbsenceTransactionList>? absenceTransList;

  DateTime accrualDateTime = DateTime.now();
  String? employeeId;

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
      var dynamicParam = ModalRoute.of(context)!.settings.arguments;
      if (dynamicParam != null) {
        employeeId = dynamicParam.toString();
      }
      getAbsenceTransactions();
    });
  }

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

  void getAbsenceTransactions() async {
    try {
      Utils.showLoading(context);
      absenceTransList = await LeaveBalanceApiClient().getAbsenceTransactions(-999, employeeId);
      Utils.hideLoading(context);
      setState(() {});
    } catch (ex) {
      Utils.hideLoading(context);
      Utils.handleException(ex, context, null);
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.white,
      appBar: AppBarWidget(
        context,
        title: LocaleKeys.leaveBalance.tr(),
      ),
      body: absenceTransList == null
          ? const SizedBox()
          : (absenceTransList!.isEmpty
              ? Utils.getNoDataWidget(context).paddingOnly(top: 50)
              : ListView(
                  physics: const BouncingScrollPhysics(),
                  padding: const EdgeInsets.all(21),
                  children: [
                    BalancesDashboardWidget(LocaleKeys.currentLeaveBalance.tr(), true, selectedEmp: employeeId, showLoading: false),
                    12.height,
                    ListView.separated(
                        physics: const NeverScrollableScrollPhysics(),
                        shrinkWrap: true,
                        padding: EdgeInsets.zero,
                        itemBuilder: (cxt, int index) => Column(
                              crossAxisAlignment: CrossAxisAlignment.start,
                              mainAxisSize: MainAxisSize.min,
                              children: [
                                ItemDetailGrid(
                                  ItemDetailViewCol(LocaleKeys.startDateT.tr(), absenceTransList![index].sTARTDATE ?? ""),
                                  ItemDetailViewCol(LocaleKeys.endDateT.tr(), absenceTransList![index].eNDDATE ?? ""),
                                ),
                                ItemDetailGrid(
                                  ItemDetailViewCol(LocaleKeys.absenceType.tr(), absenceTransList![index].aBSENCETYPE ?? ""),
                                  ItemDetailViewCol(LocaleKeys.absenceCategory.tr(), absenceTransList![index].aBSENCECATEGORY ?? ""),
                                ),
                                ItemDetailGrid(
                                  ItemDetailViewCol(LocaleKeys.days.tr(), absenceTransList![index].aBSENCEDAYS?.toString() ?? ""),
                                  ItemDetailViewCol(LocaleKeys.hours.tr(), absenceTransList![index].aBSENCEHOURS?.toString() ?? ""),
                                ),
                                ItemDetailGrid(
                                  ItemDetailViewCol(LocaleKeys.approvalStatus.tr(), absenceTransList![index].aPPROVALSTATUS ?? ""),
                                  ItemDetailViewCol(LocaleKeys.absenceStatus.tr(), absenceTransList![index].aBSENCESTATUS ?? ""),
                                  isItLast: true,
                                ),
                              ],
                            ).objectContainerView(),
                        separatorBuilder: (cxt, index) => 12.height,
                        itemCount: absenceTransList!.length),
                  ],
                )),
      floatingActionButton: Container(
        height: 54,
        width: 54,
        decoration: const BoxDecoration(
          shape: BoxShape.circle,
          gradient: LinearGradient(transform: GradientRotation(.83), begin: Alignment.topRight, end: Alignment.bottomLeft, colors: [
            MyColors.gradiantEndColor,
            MyColors.gradiantStartColor,
          ]),
        ),
        child: const Icon(Icons.add, color: Colors.white, size: 30),
      ).onPress(() {
        Navigator.pushNamed(context, AppRoutes.addLeaveBalance, arguments: employeeId);
      }),
    );
  }
}