import 'dart:convert';

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:fluttertoast/fluttertoast.dart';
import 'package:provider/provider.dart';
import 'package:test_sa/controllers/http_status_manger/http_status_manger.dart';
import 'package:test_sa/controllers/providers/api/device_transfer_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/models/device/device_transfer.dart';
import 'package:test_sa/models/device/device_transfer_info.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/departments/department_button.dart';
import 'package:test_sa/views/widgets/e_signature/e_signature.dart';
import 'package:test_sa/views/widgets/equipment/device_button.dart';
import 'package:test_sa/views/widgets/hospitals/hospital_button.dart';
import 'package:test_sa/views/widgets/loaders/loading_manager.dart';
import 'package:test_sa/views/widgets/status/gas_refill/gas_status.dart';
import 'package:test_sa/views/widgets/titles/app_sub_title.dart';

import '../../../../controllers/localization/localization.dart';
class UpdateDeviceTransfer extends StatefulWidget {
  final DeviceTransfer model;
  final bool isSender;
  const UpdateDeviceTransfer({Key key, this.model, this.isSender}) : super(key: key);

  @override
  State<UpdateDeviceTransfer> createState() => _UpdateDeviceTransferState();
}

class _UpdateDeviceTransferState extends State<UpdateDeviceTransfer> {
  bool _isLoading = false;
  bool _validate = false;
  Subtitle _subtitle;
  UserProvider _userProvider;
  SettingProvider _settingProvider;
  Uint8List _signature;
  DeviceTransferProvider _deviceTransferProvider;
  final TextEditingController _requestedQuantityController = TextEditingController();
  final DeviceTransferInfo _formModel = DeviceTransferInfo();
  final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
  final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();

  _update() async {
    _validate = true;
    if(!_formKey.currentState.validate()){
      setState(() {});
      return false;
    }
    _formKey.currentState.save();

    _isLoading =true;
    setState(() {});
    int status = await _deviceTransferProvider.updateRequest(
        user: _userProvider.user,
        host: _settingProvider.host,
        requestId: widget.model.id,
        isSender: widget.isSender,
        newModel: _formModel,
        oldModel: widget.model
    );
    _isLoading =false;
    setState(() {});
    if(status >= 200 && status < 300){
      Fluttertoast.showToast(
        msg: _subtitle.requestCompleteSuccessfully,
      );
      _validate = false;
      Navigator.of(context).pop();
      Navigator.of(context).pop();
    }else{
      String errorMessage = HttpStatusManger.getStatusMessage(
          status: status, subtitle: _subtitle);
      ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(
            content: Text(
                errorMessage
            ),
          )
      );
    }
  }

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

  @override
  void initState() {
    _formModel.fromDetails(widget.isSender
        ? widget.model.sender : widget.model.receiver,
      withSignature: false
    );
    super.initState();
  }

  @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);
    _deviceTransferProvider = Provider.of<DeviceTransferProvider>(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(
                        "Edit Transfer Device",
                        style: Theme.of(context).textTheme.headline5.copyWith(
                            color: Theme.of(context).primaryColor,
                            fontSize: 28,
                            fontWeight: FontWeight.bold
                        ),
                      ),
                    ),
                  ),
                  const SizedBox(height: 8,),
                  ASubTitle("Comment"),

                  const SizedBox(height: 4,),
                  ATextFormField(
                    initialValue: _formModel?.comment,
                    textAlign: TextAlign.center,
                    style: Theme.of(context).textTheme.subtitle1,
                    textInputType: TextInputType.text,
                    onSaved: (value){
                      _formModel.comment = value;
                    },
                  ),
                  const SizedBox(height: 8,),
                  ASubTitle(_subtitle.travelingHours),
                  const SizedBox(height: 4,),
                  ATextFormField(
                    initialValue: _formModel?.travelingHours,
                    textAlign: TextAlign.center,
                    style: Theme.of(context).textTheme.subtitle1,
                    textInputType: TextInputType.number,
                    onSaved: (value){
                      _formModel.travelingHours = value;
                    },
                  ),
                  const SizedBox(height: 8,),
                  ASubTitle(_subtitle.workingHours),
                  const SizedBox(height: 4,),
                  ATextFormField(
                    initialValue: _formModel?.workingHours,
                    textAlign: TextAlign.center,
                    style: Theme.of(context).textTheme.subtitle1,
                    textInputType: TextInputType.number,
                    onSaved: (value){
                      _formModel.workingHours = value;
                    },
                  ),
                  // const SizedBox(height: 8,),
                  // const ASubTitle("Sender Department"),
                  // if(_validate && _formModel.senderDepartment == null)
                  //   ASubTitle(_subtitle.requiredWord,color: Colors.red,),
                  // const SizedBox(height: 4,),
                  // DepartmentButton(
                  //   department: _formModel.senderDepartment,
                  //   onDepartmentPick: (department){
                  //     _formModel.senderDepartment = department;
                  //     setState(() {});
                  //   },
                  // ),
                  const SizedBox(height: 8,),
                  ASubTitle(_subtitle.status),
                  const SizedBox(height: 4,),
                  GasStatusMenu(
                    initialValue: _formModel.status,
                    onSelect: (status){
                      _formModel.status = status;
                      setState(() {});
                    },
                  ),
                  const SizedBox(height: 8,),
                  const ASubTitle("Signature"),
                  // if(_validate && _formModel.signature == null)
                  //   ASubTitle(_subtitle.requiredWord,color: Colors.red,),
                  const SizedBox(height: 4,),
                  ESignature(
                    oldSignature: widget.isSender
                        ? widget.model.sender.signature
                        : widget.model.receiver.signature,
                     newSignature: _signature,
                     onSaved: (signature){
                        _signature = signature;
                        _formModel.signature = base64Encode(signature);
                      },
                  ),
                  Padding(
                    padding: const EdgeInsets.all(16.0),
                    child: AButton(
                      text: _subtitle.update,
                      onPressed: _update,
                    ),
                  ),
                  const SizedBox(height: 100,)
                ],
              ),
            ),
          ),
        ),
      ),
    );
  }
}