mohemm-flutter-app/lib/dialogs/otp_dialog.dart

import 'dart:async';

import 'package:easy_localization/src/public_ext.dart';
import 'package:flutter/material.dart';
import 'package:flutter_svg/svg.dart';
import 'package:mohem_flutter_app/classes/colors.dart';
import 'package:mohem_flutter_app/extensions/int_extensions.dart';
import 'package:mohem_flutter_app/extensions/string_extensions.dart';
import 'package:mohem_flutter_app/generated/locale_keys.g.dart';
import 'package:mohem_flutter_app/widgets/otp_widget.dart';

class OtpDialog {
  final int type;
  final int? mobileNo;
  final Function(String) onSuccess;
  final Function onFailure;
  final BuildContext context;

  int remainingTime = 120;

  Future<Null>? timer;

  static BuildContext? _context;

  static bool? _loading;

  OtpDialog(
    this.context,
    this.type,
    this.mobileNo,
    this.onSuccess,
    this.onFailure,
  );

  GlobalKey? verifyAccountForm = GlobalKey<FormState>();

  final TextEditingController _pinPutController = TextEditingController();

  TextEditingController digit1 = TextEditingController(text: "");
  TextEditingController digit2 = TextEditingController(text: "");
  TextEditingController digit3 = TextEditingController(text: "");
  TextEditingController digit4 = TextEditingController(text: "");

  Map verifyAccountFormValue = {
    'digit1': '',
    'digit2': '',
    'digit3': '',
    'digit4': '',
  };
  final focusD1 = FocusNode();
  final focusD2 = FocusNode();
  final focusD3 = FocusNode();
  final focusD4 = FocusNode();
  String? errorMsg;

  // ProjectViewModel projectProvider;
  String displayTime = '';
  String? _code;
  dynamic setState;
  bool stopTimer = false;

  // static String signature;

  void displayDialog(BuildContext context) async {
    return showDialog(
        context: context,
        barrierColor: Colors.black.withOpacity(0.63),
        builder: (context) {
          // projectProvider = Provider.of(context);
          return Dialog(
            backgroundColor: Colors.white,
            shape: const RoundedRectangleBorder(),
            insetPadding: const EdgeInsets.only(left: 21, right: 21),
            child: StatefulBuilder(builder: (context, setState) {
              if (displayTime == '') {
                startTimer(setState);
              }

              return Container(
                padding: EdgeInsets.only(left: 21, right: 18, top: 39, bottom: 59),
                child: Column(
                  mainAxisSize: MainAxisSize.min,
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Row(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      mainAxisAlignment: MainAxisAlignment.spaceBetween,
                      children: [
                        SvgPicture.asset(
                          type == 1 ? "assets/images/login/verify_sms.svg" : "assets/images/login/verify_whatsapp.svg",
                          height: 50,
                          width: 50,
                        ),
                        IconButton(
                            padding: EdgeInsets.zero,
                            icon: const Icon(Icons.close),
                            constraints: const BoxConstraints(),
                            onPressed: () {
                              stopTimer = true;
                              onFailure();
                            })
                      ],
                    ),
                    22.height,
                    (LocaleKeys.pleaseEnterTheVerificationCodeSentTo.tr() + ' xxxxxxxx' + mobileNo.toString().substring(mobileNo.toString().length - 3)).toText16(),
                    18.height,
                    Directionality(
                      textDirection: TextDirection.ltr,
                      child: Center(
                        child: OTPWidget(
                          autoFocus: true,
                          controller: _pinPutController,
                          defaultBorderColor: const Color(0xffD8D8D8),
                          maxLength: 4,
                          onTextChanged: (text) {},
                          pinBoxColor: Colors.white,
                          onDone: (code) => _onOtpCallBack(code, null),
                          textBorderColor: const Color(0xffD8D8D8),
                          pinBoxWidth: 60,
                          pinBoxHeight: 60,
                          pinTextStyle: const TextStyle(fontSize: 24.0, color: MyColors.darkTextColor),
                          pinTextAnimatedSwitcherTransition: ProvidedPinBoxTextAnimation.scalingTransition,
                          pinTextAnimatedSwitcherDuration: const Duration(milliseconds: 300),
                          pinBoxRadius: 10,
                          keyboardType: TextInputType.number,
                        ),
                      ),
                    ),
                    30.height,
                    RichText(
                      text: TextSpan(
                        text: LocaleKeys.theVerificationCodeWillExpireIn.tr() + '\n',
                        style: const TextStyle(fontSize: 16, fontWeight: FontWeight.w600, color: MyColors.darkTextColor, letterSpacing: -0.48),
                        children: <TextSpan>[
                          TextSpan(
                            text: displayTime,
                            style: const TextStyle(fontSize: 16, fontWeight: FontWeight.w600, color: MyColors.textMixColor, letterSpacing: -0.48),
                          ),
                        ],
                      ),
                    ),
                  ],
                ),
              );
            }),
          );
        });
  }

  InputDecoration buildInputDecoration(BuildContext context) {
    return InputDecoration(
      counterText: " ",
      enabledBorder: const OutlineInputBorder(
        borderRadius: BorderRadius.all(Radius.circular(10)),
        borderSide: BorderSide(color: Colors.black),
      ),
      focusedBorder: OutlineInputBorder(
        borderRadius: const BorderRadius.all(Radius.circular(10.0)),
        borderSide: BorderSide(color: Theme.of(context).primaryColor),
      ),
      errorBorder: OutlineInputBorder(
        borderRadius: const BorderRadius.all(Radius.circular(10.0)),
        borderSide: BorderSide(color: Theme.of(context).errorColor),
      ),
      focusedErrorBorder: OutlineInputBorder(
        borderRadius: const BorderRadius.all(Radius.circular(10.0)),
        borderSide: BorderSide(color: Theme.of(context).errorColor),
      ),
    );
  }

  // String validateCodeDigit(value) {
  //   if (value.isEmpty) {
  //     return ' ';
  //   } else if (value.length == 3) {
  //     print(value);
  //   } else {
  //     return null;
  //   }
  // }

  String getSecondsAsDigitalClock(int inputSeconds) {
    int secNum = int.parse(inputSeconds.toString()); // don't forget the second param
    int hours = (secNum / 3600).floor();
    int minutes = ((secNum - hours * 3600) / 60).floor();
    double seconds = secNum - hours * 3600 - minutes * 60;
    String minutesString = "";
    String secondsString = "";
    minutesString = minutes < 10 ? "0" + minutes.toString() : minutes.toString();
    secondsString = seconds < 10 ? "0" + seconds.toStringAsFixed(0) : seconds.toStringAsFixed(0);
    return minutesString + ":" + secondsString;
  }

  void startTimer(setState) {
    remainingTime--;
    if (stopTimer) return;
    setState(() {
      displayTime = getSecondsAsDigitalClock(remainingTime);
    });

    timer = Future.delayed(const Duration(seconds: 1), () {
      if (remainingTime > 0) {
        startTimer(setState);
      } else {
        Navigator.pop(context);
      }
    });
  }

  static void hideSMSBox(context) {
    Navigator.pop(context);
  }

  void _onOtpCallBack(String otpCode, bool? isAutofill) {
    if (otpCode.length == 4) {
      stopTimer = true;
      onSuccess(otpCode);
    }
  }

  // static getSignature() async {
  //   // if (Platform.isAndroid) {
  //   //   return await SmsRetriever.getAppSignature();
  //   // } else {
  //   //   return null;
  //   // }
  // }
}