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/models/gas_refill/gas_refill_details.dart';
import 'package:test_sa/models/gas_refill/gas_refill_model.dart';
import 'package:test_sa/models/lookup.dart';
import 'package:test_sa/models/subtitle.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/gas_refill_create_details_item.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/localization/localization.dart';
class RequestGasRefill extends StatefulWidget {
  static const String id = "/request-gas-refill";
  const RequestGasRefill({Key key}) : super(key: key);

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

class _RequestGasRefillState extends State<RequestGasRefill> {
  bool _isLoading = false;
  bool _validate = false;
  Subtitle _subtitle;
  UserProvider _userProvider;
  SettingProvider _settingProvider;
  GasRefillProvider _gasRefillProvider;
  GasRefillDetails _currentDetails = GasRefillDetails();
  final TextEditingController _requestedQuantityController = TextEditingController();
  final GasRefillModel _formModel = GasRefillModel(details: []);
  final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
  final GlobalKey _DetailsKey = GlobalKey<FormState>();
  final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();

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

  _onSubmit() async {
    if(_formModel.details.isEmpty){
      if(!_addNewModel()) return;
    }

    _isLoading =true;
    setState(() {});

    int status = await _gasRefillProvider.createModel(
      user: _userProvider.user,
      host: _settingProvider.host,
      model: _formModel,
    );
    _isLoading =false;
    setState(() {});
    if(status >= 200 && status < 300){
      Fluttertoast.showToast(
        msg: _subtitle.requestCompleteSuccessfully,
      );
      Navigator.of(context).pop();
    }else{
      String errorMessage = HttpStatusManger.getStatusMessage(
          status: status, subtitle: _subtitle);
      ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(
            content: Text(
                errorMessage
            ),
          )
      );
    }
  }

  bool _addNewModel(){
    _validate = true;
    if(!_formKey.currentState.validate()){
      setState(() {});
      return false;
    }
    _formKey.currentState.save();
    if(!_currentDetails.validate()) {
      setState(() { });
      return false;
    }


    _formModel.details.insert(0,_currentDetails);
    _validate = false;
    Scrollable.ensureVisible(_DetailsKey.currentContext);
    _requestedQuantityController.clear();
    _currentDetails = GasRefillDetails();
    setState(() {});
    return true;
  }

  @override
  void dispose() {
    _requestedQuantityController.dispose();
    super.dispose();
  }
  @override
  Widget build(BuildContext context) {
    _subtitle = AppLocalization.of(context).subtitle;
    _userProvider = Provider.of<UserProvider>(context);
    _settingProvider = Provider.of<SettingProvider>(context);
    _gasRefillProvider = Provider.of<GasRefillProvider>(context,listen: false);
    return Scaffold(
      key: _scaffoldKey,
      body: Form(
        key: _formKey,
        child: SafeArea(
          child: LoadingManager(
            isLoading: _isLoading,
            isFailedLoading: false,
            stateCode: 200,
            onRefresh: () async {},
            child: SingleChildScrollView(
              padding: EdgeInsets.all(12 * AppStyle.getScaleFactor(context)),
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Center(
                    child: Padding(
                      padding: const EdgeInsets.all(8.0),
                      child: Text(
                        "Request Gas Refill",
                        style: Theme.of(context).textTheme.headline5.copyWith(
                            color: Theme.of(context).primaryColor,
                            fontSize: 28,
                            fontWeight: FontWeight.bold
                        ),
                      ),
                    ),
                  ),
                  // const SizedBox(height: 4,),
                  // ASubTitle(_subtitle.title),
                  // if(_validate && _formModel.title == null)
                  // ASubTitle(_subtitle.requiredWord,color: Colors.red,),
                  // SizedBox(height: 4,),
                  // ATextFormField(
                  //   initialValue: _formModel?.title,
                  //   textAlign: TextAlign.center,
                  //   style: Theme.of(context).textTheme.subtitle1,
                  //   textInputType: TextInputType.text,
                  //   onSaved: (value){
                  //     _formModel.title = value;
                  //   },
                  // ),
                  // const SizedBox(height: 8,),
                  ASubTitle(_subtitle.status),
                  if(_validate && _formModel.status == null)
                    ASubTitle(_subtitle.requiredWord,color: Colors.red,),
                  const SizedBox(height: 4,),
                  GasStatusMenu(
                    initialValue: _formModel.status ?? const Lookup(
                      value: 1
                    ),
                    onSelect: (status){
                      _formModel.status = status;
                    },
                  ),
                  const SizedBox(height: 8,),
                  Divider(color: Theme.of(context).colorScheme.primary,),
                  const SizedBox(height: 4,),
                  const ASubTitle("Type"),
                  if(_validate && _currentDetails.type == null)
                    ASubTitle(_subtitle.requiredWord,color: Colors.red,),
                  const SizedBox(height: 4,),
                  GasTypeMenu(
                    initialValue: _currentDetails.type,
                    onSelect: (status){
                      _currentDetails.type = status;
                    },
                  ),

                  const SizedBox(height: 8,),
                  const ASubTitle("Cylinder Size"),
                  if(_validate && _currentDetails.cylinderSize == null)
                    ASubTitle(_subtitle.requiredWord,color: Colors.red,),
                  const SizedBox(height: 4,),
                  GasCylinderSizeMenu(
                    initialValue: _currentDetails.cylinderSize,
                    onSelect: (status){
                      _currentDetails.cylinderSize = status;
                    },
                  ),
                  const SizedBox(height: 8,),
                  const ASubTitle("Cylinder Type"),
                  if(_validate && _currentDetails.cylinderSize == null)
                    ASubTitle(_subtitle.requiredWord,color: Colors.red,),
                  const SizedBox(height: 4,),
                  GasCylinderTypesMenu(
                    initialValue: _currentDetails.cylinderType,
                    onSelect: (status){
                      _currentDetails.cylinderType = status;
                    },
                  ),
                  const SizedBox(height: 8,),
                  ASubTitle(_subtitle.quantity),
                  if(_validate && _currentDetails.requestedQuantity == null)
                    ASubTitle(_subtitle.requiredWord,color: Colors.red,),
                  SizedBox(height: 4,),
                  ATextFormField(
                    initialValue: (_currentDetails?.requestedQuantity ?? "").toString(),
                    textAlign: TextAlign.center,
                    controller: _requestedQuantityController,
                    style: Theme.of(context).textTheme.subtitle1,
                    validator: (value) =>
                    Validator.isNumeric(value)
                        ? null : "allow numbers only",
                    textInputType: TextInputType.number,
                    onSaved: (value){
                      _currentDetails.requestedQuantity = double.tryParse(value);
                    },
                  ),
                  const SizedBox(height: 8,),
                  Padding(
                    padding: const EdgeInsets.all(16.0),
                    child: AButton(
                      text: _subtitle.add,
                      onPressed: _addNewModel,
                    ),
                  ),
                  if(_formModel.details.isNotEmpty)
                  const ASubTitle("Gas Requests"),
                  ListView.builder(
                    key: _DetailsKey,
                    shrinkWrap: true,
                    physics: const ClampingScrollPhysics(),
                    itemCount: _formModel.details.length,
                    itemBuilder: (context,index){
                      final model = _formModel.details[index];
                      return GasRefillCreateDetailsItem(
                        model: model,
                        onDelete: (){
                          _formModel.details.remove(model);
                          setState(() {});
                        },
                      );
                    }
                  ),
                  Padding(
                    padding: const EdgeInsets.all(16.0),
                    child: AButton(
                      text: _subtitle.submit,
                      onPressed: _onSubmit,
                    ),
                  ),
                  const SizedBox(height: 100,)
                ],
              ),
            ),
          ),
        ),
      ),
    );
  }
}