import 'package:flutter/material.dart';
import 'package:fluttertoast/fluttertoast.dart';
import 'package:provider/provider.dart';

import '../../../../api/user_api_client.dart';
import '../../../../controllers/http_status_manger/http_status_manger.dart';
import '../../../../controllers/localization/localization.dart';
import '../../../../controllers/providers/api/gas_refill_provider.dart';
import '../../../../models/enums/user_types.dart';
import '../../../../models/gas_refill/gas_refill_model.dart';
import '../../../../models/subtitle.dart';
import '../../../app_style/colors.dart';
import '../../../app_style/sizing.dart';
import '../../../widgets/buttons/app_back_button.dart';
import '../../../widgets/buttons/app_button.dart';
import '../../../widgets/buttons/app_icon_button.dart';
import '../../../widgets/gas_refill/gas_refill_update_details_item.dart';
import '../../../widgets/loaders/loading_manager.dart';
import '../../../widgets/requests/info_row.dart';
import '../../../widgets/requests/request_status.dart';
import '../../../widgets/status/gas_refill/gas_status.dart';
import '../../../widgets/titles/app_sub_title.dart';

class GasRefillDetails extends StatefulWidget {
  final GasRefillModel? model;
  const GasRefillDetails({Key? key, this.model}) : super(key: key);

  @override
  State<GasRefillDetails> createState() => _GasRefillDetailsState();
}

class _GasRefillDetailsState extends State<GasRefillDetails> {
  final GasRefillModel _model = GasRefillModel();
  bool _enableEdit = false;
  bool _validate = false;
  GasRefillProvider? _gasRefillProvider;
  bool _isLoading = false;
  Subtitle? _subtitle;
  final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
  final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();
  _update() async {
    _validate = true;
    if (!(_formKey.currentState?.validate() ?? false)) {
      setState(() {});
      return false;
    }
    _formKey.currentState?.save();

    _isLoading = true;
    setState(() {});
    int? status = await _gasRefillProvider?.updateModel(newModel: _model, oldModel: widget.model);
    _isLoading = false;
    setState(() {});
    if (status != null && status >= 200 && status < 300) {
      Fluttertoast.showToast(
        msg: _subtitle?.requestCompleteSuccessfully ?? "",
      );
      _enableEdit = false;
      _validate = false;
      //Navigator.of(context).pop();
    } else {
      String errorMessage = HttpStatusManger.getStatusMessage(status: status, subtitle: _subtitle);
      ScaffoldMessenger.of(context).showSnackBar(SnackBar(
        content: Text(errorMessage),
      ));
    }
  }

  @override
  void initState() {
    _model.fromGasRefillModel(widget.model ?? GasRefillModel());
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    _subtitle = AppLocalization.of(context)?.subtitle;
    _gasRefillProvider = Provider.of<GasRefillProvider>(context);
    return Scaffold(
      key: _scaffoldKey,
      body: SafeArea(
        child: Form(
          key: _formKey,
          child: LoadingManager(
            isLoading: _isLoading,
            isFailedLoading: false,
            stateCode: 200,
            onRefresh: () async {},
            child: Column(
              children: [
                Container(
                  color: Theme.of(context).colorScheme.primary,
                  padding: const EdgeInsets.symmetric(horizontal: 0, vertical: 4),
                  child: Row(
                    children: [
                      ABackButton(),
                      Expanded(
                        child: Center(
                          child: Text(
                            _subtitle?.details ?? "",
                            style: Theme.of(context).textTheme.headline6?.copyWith(color: AColors.white, fontStyle: FontStyle.italic),
                          ),
                        ),
                      ),
                      if (UserApiClient().user?.roles == UsersTypes.engineer.name)
                        AIconButton(
                          iconData: _enableEdit ? Icons.cancel : Icons.edit,
                          color: Theme.of(context).colorScheme.onPrimary,
                          buttonSize: 42,
                          backgroundColor: AColors.green,
                          onPressed: () async {
                            _enableEdit = !_enableEdit;
                            _model.fromGasRefillModel(widget.model ?? GasRefillModel());
                            setState(() {});
                          },
                        ),
                      const SizedBox(
                        width: 16,
                      )
                    ],
                  ),
                ),
                Expanded(
                  child: SingleChildScrollView(
                    padding: EdgeInsets.all(16 * AppStyle.getScaleFactor(context)),
                    child: Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        RequestInfoRow(
                          title: _subtitle?.title ?? "",
                          info: _model.title ?? "",
                        ),
                        RequestInfoRow(
                          title: _subtitle?.hospital ?? "",
                          info: _model.clientName ?? "",
                        ),
                        _enableEdit
                            ? Column(
                                crossAxisAlignment: CrossAxisAlignment.start,
                                children: [
                                  const SizedBox(
                                    height: 8,
                                  ),
                                  ASubTitle(_subtitle?.status ?? ""),
                                  if (_validate && _model.status == null)
                                    ASubTitle(
                                      _subtitle?.requiredWord ?? "",
                                      color: Colors.red,
                                    ),
                                  const SizedBox(
                                    height: 4,
                                  ),
                                  GasStatusMenu(
                                    initialValue: _model.status,
                                    onSelect: (status) {
                                      _model.status = status;
                                    },
                                  )
                                ],
                              )
                            : Row(
                                children: [
                                  Expanded(
                                    child: Text(
                                      "${_subtitle?.status} :  ",
                                      style: Theme.of(context).textTheme.subtitle2,
                                      textScaleFactor: AppStyle.getScaleFactor(context),
                                    ),
                                  ),
                                  StatusLabel(label: _model.status?.label.toString() ?? "", color: AColors.getGasStatusColor(_model.status?.id ?? 0)),
                                ],
                              ),
                        const SizedBox(
                          height: 8,
                        ),
                        const ASubTitle("Gas Requests"),
                        const SizedBox(
                          height: 8,
                        ),
                        ListView.builder(
                            shrinkWrap: true,
                            physics: const ClampingScrollPhysics(),
                            itemCount: _model.details?.length,
                            itemBuilder: (context, index) {
                              final details = _model.details![index];
                              return GasRefillUpdateDetailsItem(
                                details: details,
                                validate: _validate,
                                enableEdit: _enableEdit,
                              );
                            }),
                        if (_enableEdit)
                          Column(
                            children: [
                              const SizedBox(
                                height: 16,
                              ),
                              AButton(
                                text: _subtitle?.update ?? "",
                                onPressed: _update,
                              ),
                            ],
                          ),
                      ],
                    ),
                  ),
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}