PatientApp-KKUMC/lib/widgets/otp/sms-popup.dart

import 'dart:async';

import 'package:diplomaticquarterapp/config/size_config.dart';
import 'package:diplomaticquarterapp/uitl/translations_delegate_base.dart';
import 'package:diplomaticquarterapp/widgets/text/app_texts_widget.dart';
import 'package:flutter/material.dart';
import 'dart:math';

class SMSOTP {
  final type;
  final mobileNo;
  final Function onSuccess;
  final Function onFailure;
  final context;

  int remainingTime = 600;

  Future<Null> timer;

  static BuildContext _context;

  static bool _loading;

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

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

  String displayTime = '';
  displayDialog(BuildContext context) async {
    return showDialog(
        context: context,
        builder: (context) {
          return AlertDialog(
            title: Row(
              mainAxisAlignment: MainAxisAlignment.end,
              children: <Widget>[
                IconButton(
                  icon: Icon(Icons.close),
                  onPressed: () => {Navigator.pop(context), this.onSuccess()},
                )
              ],
            ),
            shape: RoundedRectangleBorder(
                borderRadius: BorderRadius.all(Radius.circular(10.0))),
            content: StatefulBuilder(builder: (context, setState) {
              if (displayTime == '') {
                startTimer(setState);
              }
              return Container(
                color: Colors.white,
                height: SizeConfig.realScreenHeight * 0.5,
                width: SizeConfig.realScreenWidth * 0.8,
                child: Center(
                    child: Column(
                  crossAxisAlignment: CrossAxisAlignment.center,
                  children: <Widget>[
                    type == 1
                        ? Image.asset('assets/images/login/103.png')
                        : Image.asset('assets/images/login/104.png'),
                    Padding(
                        padding: EdgeInsets.only(top: 5),
                        child: AppText(
                          TranslationBase.of(context).verificationMessage +
                              ' XXXXXX' +
                              mobileNo
                                  .toString()
                                  .substring(mobileNo.toString().length - 3),
                          textAlign: TextAlign.center,
                        )),
                    Padding(
                      padding: EdgeInsets.only(top: 20),
                      child: Row(
                        mainAxisAlignment: MainAxisAlignment.spaceAround,
                        children: <Widget>[
                          Container(
                            width: SizeConfig.realScreenWidth * 0.15,
                            child: TextFormField(
                              textInputAction: TextInputAction.next,
                              style: buildTextStyle(),
                              autofocus: true,
                              maxLength: 1,
                              textAlign: TextAlign.center,
                              keyboardType: TextInputType.number,
                              decoration: buildInputDecoration(context),
                              onSaved: (val) {},
                              validator: validateCodeDigit,
                              onFieldSubmitted: (_) {
                                FocusScope.of(context).requestFocus(focusD2);
                              },
                              onChanged: (val) {
                                if (val.length == 1) {
                                  FocusScope.of(context).requestFocus(focusD2);
                                  verifyAccountFormValue['digit1'] = val.trim();
                                  checkValue();
                                }
                              },
                            ),
                          ),
                          Container(
                            width: SizeConfig.realScreenWidth * 0.15,
                            child: TextFormField(
                                focusNode: focusD2,
                                textInputAction: TextInputAction.next,
                                maxLength: 1,
                                textAlign: TextAlign.center,
                                style: buildTextStyle(),
                                keyboardType: TextInputType.number,
                                decoration: buildInputDecoration(context),
                                onSaved: (val) {},
                                onFieldSubmitted: (_) {
                                  FocusScope.of(context).requestFocus(focusD3);
                                },
                                onChanged: (val) {
                                  if (val.length == 1) {
                                    FocusScope.of(context)
                                        .requestFocus(focusD3);
                                    verifyAccountFormValue['digit2'] = val.trim();
                                    checkValue();
                                  }
                                },
                                validator: validateCodeDigit),
                          ),
                          Container(
                              width: SizeConfig.realScreenWidth * 0.15,
                              child: TextFormField(
                                  focusNode: focusD3,
                                  textInputAction: TextInputAction.next,
                                  maxLength: 1,
                                  textAlign: TextAlign.center,
                                  style: buildTextStyle(),
                                  keyboardType: TextInputType.number,
                                  decoration: buildInputDecoration(context),
                                  onSaved: (val) {},
                                  onFieldSubmitted: (_) {
                                    FocusScope.of(context)
                                        .requestFocus(focusD4);
                                  },
                                  onChanged: (val) {
                                    if (val.length == 1) {
                                      FocusScope.of(context)
                                          .requestFocus(focusD4);
                                      verifyAccountFormValue['digit3'] = val.trim();
                                      checkValue();
                                    }
                                  },
                                  validator: validateCodeDigit)),
                          Container(
                              width: SizeConfig.realScreenWidth * 0.15,
                              child: TextFormField(
                                  focusNode: focusD4,
                                  maxLength: 1,
                                  textAlign: TextAlign.center,
                                  style: buildTextStyle(),
                                  keyboardType: TextInputType.number,
                                  decoration: buildInputDecoration(context),
                                  onFieldSubmitted: (_) {
                                    FocusScope.of(context)
                                        .requestFocus(focusD4);
                                  },
                                  onChanged: (val) {
                                    if (val.length == 1) {
                                      verifyAccountFormValue['digit4'] = val.trim();
                                      checkValue();
                                    }
                                  },
                                  validator: validateCodeDigit)),
                        ],
                      ),
                    ),
                    Padding(
                        padding: EdgeInsets.only(top: 10),
                        child: AppText(
                          TranslationBase.of(context).validationMessage +
                              ' ' +
                              displayTime,
                          color: Colors.red,
                          textAlign: TextAlign.center,
                        ))
                  ],
                )),
              );
            }),
          );
        });
  }

  TextStyle buildTextStyle() {
    return TextStyle(
      fontSize: SizeConfig.textMultiplier * 3,
    );
  }

  InputDecoration buildInputDecoration(BuildContext context) {
    return InputDecoration(
      // ts/images/password_icon.png
      contentPadding: EdgeInsets.only(top: 20, bottom: 20),
      enabledBorder: OutlineInputBorder(
        borderRadius: BorderRadius.all(Radius.circular(10)),
        borderSide: BorderSide(color: Colors.black),
      ),
      focusedBorder: OutlineInputBorder(
        borderRadius: BorderRadius.all(Radius.circular(10.0)),
        borderSide: BorderSide(color: Theme.of(context).primaryColor),
      ),
      errorBorder: OutlineInputBorder(
        borderRadius: BorderRadius.all(Radius.circular(10.0)),
        borderSide: BorderSide(color: Theme.of(context).errorColor),
      ),
      focusedErrorBorder: OutlineInputBorder(
        borderRadius: BorderRadius.all(Radius.circular(10.0)),
        borderSide: BorderSide(color: Theme.of(context).errorColor),
      ),
    );
  }

  String validateCodeDigit(value) {
    if (value.isEmpty) {
      return 'Please enter your Password';
    } else if (value.length == 3) {
      print(value);
    } else {
      return null;
    }
  }

  checkValue() {
    //print(verifyAccountFormValue);
    if (verifyAccountFormValue['digit1'] != ''&&
        verifyAccountFormValue['digit2'] != '' &&
        verifyAccountFormValue['digit3'] != '' &&
        verifyAccountFormValue['digit4'] != '') {
      onSuccess(verifyAccountFormValue['digit1'] +
          verifyAccountFormValue['digit2'] +
          verifyAccountFormValue['digit3'] +
          verifyAccountFormValue['digit4']);
    }
  }

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

  startTimer(setState) {
    this.remainingTime--;
    setState(() {
      displayTime = this.getSecondsAsDigitalClock(this.remainingTime);
    });

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

  static void showLoadingDialog(BuildContext context, bool _loading) async {
    _context = context;

    if (_loading == false) {
      Navigator.of(context).pop();
      return;
    }
    _loading = true;
    await showDialog(
        context: _context,
        barrierDismissible: false,
        builder: (BuildContext context) {
          return SimpleDialog(
            elevation: 0.0,
            backgroundColor: Colors.transparent,
            children: <Widget>[
              Center(
                child: CircularProgressIndicator(
                  valueColor: AlwaysStoppedAnimation<Color>(Colors.black),
                ),
              )
            ],
          );
        });
  }

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