import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:fluttertoast/fluttertoast.dart';
import 'package:provider/provider.dart';
import 'package:test_sa/controllers/api_routes/http_status_manger.dart';
import 'package:test_sa/controllers/providers/api/gas_refill_provider.dart';
import 'package:test_sa/controllers/providers/api/user_provider.dart';
import 'package:test_sa/controllers/providers/settings/setting_provider.dart';
import 'package:test_sa/controllers/validator/validator.dart';
import 'package:test_sa/extensions/context_extension.dart';
import 'package:test_sa/extensions/int_extensions.dart';
import 'package:test_sa/extensions/widget_extensions.dart';
import 'package:test_sa/models/lookup.dart';
import 'package:test_sa/models/timer_model.dart';
import 'package:test_sa/views/app_style/sizing.dart';
import 'package:test_sa/views/widgets/app_text_form_field.dart';
import 'package:test_sa/views/widgets/buttons/app_button.dart';
import 'package:test_sa/views/widgets/gas_refill/building_type_menu.dart';
import 'package:test_sa/views/widgets/gas_refill/department_type_menu.dart';
import 'package:test_sa/views/widgets/gas_refill/floor_type_menu.dart';
import 'package:test_sa/views/widgets/gas_refill/gas_refill_create_details_item.dart';
import 'package:test_sa/views/widgets/hospitals/hospital_auto_complete_field_new.dart';
import 'package:test_sa/views/widgets/loaders/loading_manager.dart';
import 'package:test_sa/views/widgets/status/gas_refill/gas_cylinder_size.dart';
import 'package:test_sa/views/widgets/status/gas_refill/gas_cylinder_type.dart';
import 'package:test_sa/views/widgets/status/gas_refill/gas_status.dart';
import 'package:test_sa/views/widgets/status/gas_refill/gas_type.dart';
import 'package:test_sa/views/widgets/titles/app_sub_title.dart';

import '../../../../controllers/providers/api/hospitals_provider.dart';
import '../../../../extensions/text_extensions.dart';
import '../../../../models/new_models/gas_refill_model.dart';
import '../../../../new_views/common_widgets/app_text_form_field.dart';
import '../../../../new_views/common_widgets/default_app_bar.dart';
import '../../../../new_views/common_widgets/single_item_drop_down_menu.dart';
import '../../../../providers/gas_request_providers/gas_status_provider.dart';


class RequestGasRefill extends StatefulWidget {
  static const String id = "/request-gas-refill";
  final GasRefillModel gasRefillModel;

  const RequestGasRefill({this.gasRefillModel, Key key}) : super(key: key);

  @override
  State<RequestGasRefill> createState() => _RequestGasRefillState();
}

class _RequestGasRefillState extends State<RequestGasRefill> {
  bool _isLoading = false;
  bool _validate = false;

  UserProvider _userProvider;
  SettingProvider _settingProvider;
  GasRefillProvider _gasRefillProvider;
  GasRefillDetails _currentDetails = GasRefillDetails();
  final TextEditingController _deliveredQuantityController = TextEditingController();
  final TextEditingController _commentController = TextEditingController();
  final TextEditingController _workingHoursController = TextEditingController();

  GasRefillModel _formModel = GasRefillModel(gazRefillDetails: []);
  final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
  final GlobalKey _DetailsKey = GlobalKey<FormState>();
  final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();
  bool _firstTime = true;

  @override
  void initState() {
    super.initState();
    if (widget.gasRefillModel != null) {
      _formModel = widget.gasRefillModel;
    }
  }

  @override
  void setState(VoidCallback fn) {
    if (mounted) super.setState(() {});
  }

  _onSubmit(BuildContext context) async {
    if (_formModel.gazRefillDetails.isEmpty) {
      if (!(await _addNewModel(context))) return;
    }

    //_isLoading = true;
    setState(() {});
    // if (widget.gasRefillModel != null) {
    //   if  (!(await _formModel.validate(context))) {
    //     _isLoading = false;
    //     setState(() {});
    //     return;
    //   }
    // }
    //if(!(_formKey.currentState.validate())) return;
    // if (_gasRefillProvider.department?.name == null) {
    //   ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text("Select department")));
    //   _isLoading = false;
    //   setState(() {});
    //   return;
    // }

    int status = widget.gasRefillModel == null
        ? null /*await _gasRefillProvider.createModel(
            user: _userProvider.user,
            model: _formModel,
          )*/
        : await _gasRefillProvider.updateModel(
            user: _userProvider.user,
            host: _settingProvider.host,
            oldModel: widget.gasRefillModel,
            newModel: _formModel,
          );
    //_isLoading = false;
    setState(() {});
    if (status >= 200 && status < 300) {
      Fluttertoast.showToast(
        msg: context.translation.successfulRequestMessage,
      );
      Navigator.of(context).pop(_formModel);
      setState(() {});
    } else {
      String errorMessage = HttpStatusManger.getStatusMessage(status: status, subtitle: context.translation);
      ScaffoldMessenger.of(context).showSnackBar(SnackBar(
        content: Text(errorMessage),
      ));
    }
  }

  Future<bool> _addNewModel(BuildContext context) async {
    _validate = true;
    if (!_formKey.currentState.validate()) {
      setState(() {});
      return false;
    }
    _formKey.currentState.save();
    if (!(await _currentDetails.validate(context))) {
      setState(() {});
      return false;
    }

    _formModel.gazRefillDetails.insert(0, _currentDetails);
    _validate = false;
    Scrollable.ensureVisible(_DetailsKey.currentContext);
    _deliveredQuantityController.clear();
    _workingHoursController.clear();
    _commentController.clear();
    _currentDetails = GasRefillDetails();
    setState(() {});
    return true;
  }

  @override
  void dispose() {
    _deliveredQuantityController.dispose();
    _commentController.dispose();
    _workingHoursController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
 
    _userProvider = Provider.of<UserProvider>(context);
    _settingProvider = Provider.of<SettingProvider>(context);
    if (_gasRefillProvider == null) {
      _gasRefillProvider = Provider.of<GasRefillProvider>(context, listen: false);
      //_gasRefillProvider.reset();
    }
    if (_firstTime) {
      String _clientName;
      if (widget.gasRefillModel != null) {
        //_formModel.status = widget.gasRefillModel?.status ?? Lookup(value: 0);
        _gasRefillProvider.expectedDateTime = DateTime.tryParse(_formModel.expectedDate??"");
        _gasRefillProvider.timer = TimerModel(startAt: DateTime.tryParse(widget.gasRefillModel?.startDate??""), endAt: DateTime.tryParse(widget.gasRefillModel?.endDate??""));
        _clientName = _formModel.site.custName;
      } else {
        _gasRefillProvider.timer = null;
        _clientName = _userProvider.user?.clientName;
      }

      HospitalsProvider().getHospitalsListByVal(searchVal: _clientName).then((value) {
        _gasRefillProvider.hospital = value?.firstWhere((element) => element.name == _clientName, orElse: () => null);
        _gasRefillProvider.building = _gasRefillProvider.hospital?.buildings?.firstWhere((element) => element.name == widget.gasRefillModel?.building?.name, orElse: () => null);
        _gasRefillProvider.floor = _gasRefillProvider.building?.floors?.firstWhere((element) => element.name == widget.gasRefillModel?.floor?.name, orElse: () => null);
        _gasRefillProvider.department = _gasRefillProvider.floor?.departments?.firstWhere((element) => element.name == widget.gasRefillModel?.department?.departmentName, orElse: () => null);
        _firstTime = false;
        setState(() {});
      });
    }
    return Scaffold(
      appBar: DefaultAppBar(title: context.translation.updateRequest),
      key: _scaffoldKey,
      body: Form(
        key: _formKey,
        child: SafeArea(
          child: LoadingManager(
            isLoading: _isLoading,
            isFailedLoading: false,
            stateCode: 200,
            onRefresh: () async {},
            child: SingleChildScrollView(
              child: Column(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  Column(
                    children: [
                      Container(
                        width: MediaQuery.of(context).size.width,
                        decoration: ShapeDecoration(
                          color: Colors.white,
                          shape: RoundedRectangleBorder(
                            borderRadius: BorderRadius.circular(20),
                          ),
                          shadows: const [BoxShadow(color: Color(0x07000000), blurRadius: 14, offset: Offset(0, 0), spreadRadius: 0)],
                        ),
                        child: Column(
                          crossAxisAlignment: CrossAxisAlignment.start,
                          children: [
                            Text(context.translation.gasRefill, style: AppTextStyles.heading5.copyWith(color: const Color(0xFF3B3D4A))),
                            8.height,
                            Text(
                              'Gas Request:',
                              style: AppTextStyles.bodyText.copyWith(color: Color(0xFF757575)),
                            ),
                            Text(
                              'Cylinder Size: ${widget.gasRefillModel.gazRefillDetails[0].cylinderSize.value}',
                              style: AppTextStyles.bodyText.copyWith(color: Color(0xFF757575)),
                            ),
                            Text(
                              'Request Quantity: ${widget.gasRefillModel.gazRefillDetails[0].requestedQty}',
                              style: AppTextStyles.bodyText.copyWith(color: Color(0xFF757575)),
                            ),
                            Text(
                              'Site: ${widget.gasRefillModel.site.name}',
                              style: AppTextStyles.bodyText.copyWith(color: Color(0xFF757575)),
                            ),
                          ],
                        ).paddingAll(16),
                      ),
                      12.height,
                      AppTextFormField(
                        labelText: context.translation.workingHours,
                        onSaved:(value){
                          _formModel?.workingHours = double.tryParse(value);
                        },
                        textInputType: TextInputType.number,
                        controller: _workingHoursController,
                        validator: (value) => Validator.isNumeric(value) ? null : "allow numbers only",
                      ),
                      12.height,
                      SingleItemDropDownMenu<Lookup,GasStatusProvider >(
                        context: context,
                        title: context.translation.reportStatus,
                        initialValue: _formModel.status,
                        onSelect: (value) {
                          _formModel.status=value;
                        },
                      ),
                      12.height,
                      AppTextFormField(
                        labelText: context.translation.deliveredQuantity,
                        onSaved:(value){
                          _currentDetails?.deliverdQty = double.tryParse(value);
                        },
                        textInputType: TextInputType.number,
                        controller: _deliveredQuantityController,
                        validator: (value) => Validator.isNumeric(value) ? null : "allow numbers only",
                      ),
                      12.height,
                      /// TBD
                      AppTextFormField(
                        labelText: context.translation.comments,
                        textInputType: TextInputType.multiline,
                        alignLabelWithHint: true,
                        controller: _commentController,
                        onSaved: (value){
                        },
                      ),
                    ],
                  ).paddingAll(16),
                  AButton(
                    text: widget.gasRefillModel == null ? context.translation.submit : context.translation.update,
                    onPressed:()async{_onSubmit.call(context);},
                  ).paddingAll(16),
                ],
              ),
            )
           ),
        ),
      ),
    );
  }
}