liangchengyou / wow_english

  import 'package:flutter/cupertino.dart';
  import 'package:flutter_bloc/flutter_bloc.dart';

  import 'package:wow_english/common/request/dao/user_dao.dart';
  import 'package:wow_english/common/request/exception.dart';
  import 'package:wow_english/utils/loading.dart';

  import '../set_pwd_page.dart';
  

  part 'set_pwd_event.dart';
  part 'set_pwd_state.dart';
  
  class SetPwdBloc extends Bloc<SetPwdEvent, SetPwdState> {

    final String? phoneNumber;

    final String? smsCode;
    late final SetPwdPageType pageType;

    final TextEditingController passWordFirstController = TextEditingController();
    final TextEditingController passWordSecondController = TextEditingController();

    ///密码是否符合规则(第一个输入框)
    bool _passwordEnsure = false;

    ///密码是否超过16位(第一个输入框)
    bool _passwordLarger = false;

    ///是否显示Icon(第一个输入框)
    bool _showPwdIcon = false;

    ///是否显示Icon(第二个输入框)
    bool _showCheckPwdIcon = false;

    ///密码是否一致
    bool _passwordCheck = true;
  
    bool get passwordEnsure => _passwordEnsure;
  
    bool get passwordCheck => _passwordCheck;
  
    bool get passwordLarger => _passwordLarger;
  
    bool get showPwdIcon => _showPwdIcon;
  
    bool get showCheckPwdIcon => _showCheckPwdIcon;
  
    bool get ensure => _passwordCheck && _passwordEnsure;
  

    String get passwordText => passWordFirstController.text;
  

    SetPwdBloc(this.phoneNumber, this.smsCode, this.pageType) : super(SetPwdInitial()) {

      on<PwdEnsureEvent>(_pwdEnsureTextChange);
      on<PwdCheckEvent>(_pwdCheckTextChange);
      on<SetPasswordEvent>(_setPassword);
    }
  

    void _pwdCheckTextChange(PwdCheckEvent event, Emitter<SetPwdState> emitter) async {
      if (passWordSecondController.text.isEmpty) {

        _showCheckPwdIcon = false;
        emitter(PasswordCheckIconShowState());
      } else {
        if (!_showCheckPwdIcon) {
          _showCheckPwdIcon = true;
          emitter(PasswordCheckIconShowState());
        }
      }

      if (passWordFirstController.text == passWordSecondController.text) {

        _passwordCheck = true;
        emitter(SetCheckPwdState());
      } else {
        _passwordCheck = false;
        emitter(SetCheckPwdState());
      }
    }
  

    void _pwdEnsureTextChange(PwdEnsureEvent event, Emitter<SetPwdState> emitter) async {

      if (passWordFirstController.text.isEmpty) {
        if (_showPwdIcon) {
          _showPwdIcon = false;
          emitter(PasswordIconShowState());
        }
      } else {
        if (!_showPwdIcon) {
          _showPwdIcon = true;
          emitter(PasswordIconShowState());
        }

        if (passWordSecondController.text.isNotEmpty) {

          if (passWordFirstController.text == passWordSecondController.text) {
            _passwordCheck = true;

          } else {
            _passwordCheck = false;
          }
          emitter(SetCheckPwdState());
        }

        if (passWordFirstController.text.length >= 8 && passWordFirstController.text.length <= 16) {

          ///符合密码要求

          if (!_passwordEnsure) {

            _passwordEnsure = true;
            emitter(SetEnsurePwdState());
          }

          if (passWordSecondController.text.isNotEmpty) {
            if (passWordFirstController.text == passWordSecondController.text) {}

          }
          if (_passwordLarger) {
            _passwordLarger = false;
            emitter(PasswordLargeState());
          }
        } else {

          if (passWordFirstController.text.length > 16) {

            ///超过十六位
            if (!_passwordLarger) {
              _passwordLarger = true;
              emitter(PasswordLargeState());
            }
          } else {
            if (_passwordLarger) {
              _passwordLarger = false;
              emitter(PasswordLargeState());
            }
          }

          ///密码不符合要求

          if (_passwordEnsure) {

            _passwordEnsure = false;
            emitter(SetEnsurePwdState());
          }
        }
      }
    }
  

    /// 设置密码，调接口
    void _setPassword(SetPasswordEvent event, Emitter<SetPwdState> emitter) async {
      try {
        await loading(() async {
          switch (pageType) {
            case SetPwdPageType.changePwd:
              await UserDao.changePassword(passwordText);
              break;
            case SetPwdPageType.initPwd:
              await UserDao.initPassword(passwordText);
              break;
            case SetPwdPageType.resetPwd:
              if (phoneNumber == null || phoneNumber!.isEmpty) {
                throw ApiException(ApiException.customErrorCode, '手机号为空');
              }
              if (smsCode == null || smsCode!.isEmpty) {
                throw ApiException(ApiException.customErrorCode, '验证码为空');
              }
              await UserDao.resetPassword(phoneNumber!, passwordText, smsCode!);
              break;
          }
        });
        emitter(PasswordSetSuccessState());
      } catch (e) {
        String msg;
        if (e is ApiException) {
          msg = e.message ?? '未知错误';
        } else {
          msg = e.toString();
        }
        emitter(PasswordSetFailedState(msg));
      }

    }
  }