workouttest_app/lib/util/common.dart

import 'dart:convert';

import 'package:aitrainer_app/util/app_language.dart';
import 'package:aitrainer_app/model/cache.dart';
import 'package:aitrainer_app/model/exercise_type.dart';
import 'package:aitrainer_app/repository/user_repository.dart';
import 'package:badges/badges.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:intl/intl.dart';

class DateRate {
  static String daily = "daily";
  static String weekly = "weekly";
  static String monthly = "monthly";
  static String yearly = "yearly";
}

mixin Common {
  final emailError = "Please type a right email address here.";
  final passwordError = "The password must have at least 8 characters.";

  String toJson(Map<String, String> map) {
    String rc = "{";
    map.forEach((key, value) {
      rc += "'$key':'$value'";
    });
    rc += "}";
    return rc;
  }

  ExerciseType? getExerciseType(int exerciseTypeId) {
    ExerciseType? returnElement;
    List<ExerciseType>? listExerciseType = Cache().getExerciseTypes();
    if (listExerciseType != null) {
      for (var element in listExerciseType) {
        if (exerciseTypeId == element.exerciseTypeId) {
          returnElement = element;
          break;
        }
      }
    }
    return returnElement;
  }

  String getDateLocale(DateTime datetime, bool timeDisplay) {
    var date = datetime;

    String dateName = DateFormat(DateFormat.YEAR_MONTH_DAY, AppLanguage().appLocal.toString()).format(date.toUtc());
    if (timeDisplay) {
      dateName += " " + DateFormat(DateFormat.HOUR_MINUTE, AppLanguage().appLocal.toString()).format(date.toUtc());
    }

    return dateName;
  }

  String utf8convert(String text) {
    List<int> bytes = text.toString().codeUnits;
    return utf8.decode(bytes);
  }

  double mediaSizeWidth(BuildContext context) {
    return MediaQuery.of(context).size.width;
  }

  bool validateEmail(UserRepository userRepository) {
    final String email = userRepository.user.email!;
    final RegExp _emailRegExp = RegExp(
      r'^[a-zA-Z0-9._-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$',
    );
    return _emailRegExp.hasMatch(email);
  }

  bool validatePassword(UserRepository userRepository) {
    final password = userRepository.user.password!;
    final RegExp _passwordRegExp = RegExp(r'^(?=.*[A-Za-z0-9])(?=.*\d)[A-Za-z\d]{7,}$');

    return _passwordRegExp.hasMatch(password);
  }

  /// Calculates week number from a date as per https://en.wikipedia.org/wiki/ISO_week_date#Calculation
  int weekNumber(DateTime date) {
    int dayOfYear = int.parse(DateFormat("D").format(date));
    return ((dayOfYear - date.weekday + 10) / 7).floor();
  }

  String getDatePart(DateTime date, String dateRate) {
    String datePart = DateFormat('MM.dd', AppLanguage().appLocal.toString()).format(date);
    if (dateRate == DateRate.weekly) {
      datePart = weekNumber(date).toString();
    } else if (dateRate == DateRate.monthly) {
      datePart = DateFormat('MMM', AppLanguage().appLocal.toString()).format(date);
    } else if (dateRate == DateRate.yearly) {
      datePart = DateFormat('y', AppLanguage().appLocal.toString()).format(date);
    } else if (dateRate == DateRate.daily) {
      datePart = DateFormat('MM.dd', AppLanguage().appLocal.toString()).format(date);
    }
    return datePart;
  }

  static String? emailValidation(String? email) {
    final String error = "Please type an email address";
    if (email == null) {
      return error;
    }
    bool emailValid = RegExp(r"^[a-zA-Z0-9.a-zA-Z0-9.!#$%&'*+-/=?^_`{|}~]+@[a-zA-Z0-9]+\.[a-zA-Z]+").hasMatch(email);
    return emailValid ? null : error;
  }

  static String? passwordValidation(String? value) {
    final String error = "Password too short";
    if (value == null || value.length == 0) {
      return error;
    }
    bool valid = 8 < value.length;
    return valid ? null : error;
  }

  static Widget badgedIcon(Color color, IconData icon, String badgeKey) {
    //print("BadgetIcon: " + Cache().getBadges().toString());
    int? badgeValue = Cache().getBadges()[badgeKey];
    bool show = (badgeValue != null);
    int counter = show ? badgeValue : 0;
    //print("show $show BadgeKey $badgeKey count $counter");
    return Badge(
      position: BadgePosition.topEnd(top: -10, end: -10),
      animationDuration: Duration(milliseconds: 500),
      animationType: BadgeAnimationType.slide,
      badgeColor: Colors.red,
      showBadge: show,
      badgeContent: Text(
        counter.toString(),
        style: TextStyle(color: Colors.white),
      ),
      child: Icon(
        icon,
        color: color,
      ),
    );
  }

  static normalizeDecimal(String value) {
    value = value.replaceFirst(",", ".");
    value = value.replaceAll(RegExp(r'[^0-9.]'), "");
    return value;
  }
}