stadtbote-app/lib/tools/util.dart

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:stadtbote/tools/constants.dart';
import 'package:uuid/uuid.dart';

import '../Tools/colored_safe_area.dart';

class Util {
  static Future<bool> preferencesContainsKey(String key) async {
    var prefs = await SharedPreferences.getInstance();
    return prefs.containsKey(key);
  }

  static void preferencesSaveString(String key, String value) async {
    var prefs = await SharedPreferences.getInstance();
    await prefs.setString(key, value);
  }

  static Future<String?> preferencesGetString(String key, String? defaultValue) async {
    if (await preferencesContainsKey(key)) {
      var prefs = await SharedPreferences.getInstance();
      return prefs.getString(key);
    }

    return defaultValue;
  }

  static void preferencesSaveInt(String key, int value) async {
    var prefs = await SharedPreferences.getInstance();
    await prefs.setInt(key, value);
  }

  static Future<int?> preferencesGetInt(String key, int? defaultValue) async {
    if (await preferencesContainsKey(key)) {
      var prefs = await SharedPreferences.getInstance();
      return prefs.getInt(key);
    }

    return defaultValue;
  }

  static void preferencesSaveBool(String key, bool value) async {
    var prefs = await SharedPreferences.getInstance();
    await prefs.setBool(key, value);
  }

  static Future<bool> preferencesGetBool(String key, bool defaultValue) async {
    if (await preferencesContainsKey(key)) {
      var prefs = await SharedPreferences.getInstance();
      return prefs.getBool(key) as bool;
    }

    return defaultValue;
  }

  static Future<String> getAppUuid() async {
    var currentUuid = await preferencesGetString('uuid', null);

    if (currentUuid == null) {
      currentUuid ??= const Uuid().v4();

      preferencesSaveString("uuid", currentUuid);
    }

    return currentUuid;
  }

  static logInfo(String message) {
    if (kDebugMode) {
      print('Message: $message');
    }
  }

  static logException(String message) {
    if (kDebugMode) {
      print('Exception: $message');
    }
  }

  static int fastHash(String string) {
    var hash = 0xcbf29ce484222325;

    var i = 0;
    while (i < string.length) {
      final codeUnit = string.codeUnitAt(i++);
      hash ^= codeUnit >> 8;
      hash *= 0x100000001b3;
      hash ^= codeUnit & 0xFF;
      hash *= 0x100000001b3;
    }

    return hash;
  }

  static Widget getWaitWidget(context) {
    return ColoredSafeArea(
      key: const Key('value'),
      child: Container(
        width: 10,
        height: 10,
        color: Colors.white,
      ),
    );
  }

  static Future<Widget> fetchFutureIcon(icon) {
    return Future.delayed(const Duration(seconds: 0), () async {
      return icon;
    });
  }

  static TextField getDefaultTextField(String hint,
      {TextEditingController? controller,
      FocusNode? focusNode,
      IconButton? iconButton,
      int? maxLines = 1,
      TextInputType? type,
      List<TextInputFormatter>? formatter,
      Function()? onTap,
      bool? autofocus}) {
    iconButton ??= IconButton(
      icon: const Icon(Icons.clear),
      onPressed: () {
        if (controller != null) {
          controller.text = "";
        }
      },
    );

    return TextField(
      controller: controller,
      focusNode: focusNode,
      maxLines: maxLines,
      onTap: onTap,
      keyboardType: type,
      inputFormatters: formatter,
      autofocus: (autofocus != null) ? autofocus : false,
      decoration: InputDecoration(
          hintText: hint,
          contentPadding: const EdgeInsets.all(10),
          border: Util.getDefaultBorder(),
          errorBorder: Util.getDefaultBorder(),
          disabledBorder: Util.getDefaultBorder(),
          focusedBorder: Util.getDefaultFocusedBorder(),
          focusedErrorBorder: Util.getDefaultBorder(),
          suffixIcon: iconButton,
          labelText: hint),
    );
  }

  static OutlineInputBorder getDefaultBorder() {
    return const OutlineInputBorder(borderRadius: BorderRadius.all(Radius.circular(20.0)));
  }

  static OutlineInputBorder getDefaultFocusedBorder() {
    return const OutlineInputBorder(
      borderSide: BorderSide(color: Constants.colorPrimary),
      borderRadius: BorderRadius.all(Radius.circular(20.0)),
    );
  }
}

Widget getDefaultButton(String text, Function() onPressed, {Image? image, double? buttonHeight}) {
  return SizedBox(
    height: buttonHeight ?? 60,
    child: Stack(
      children: [
        Row(
          children: [
            Expanded(
              child: Padding(
                padding: const EdgeInsets.all(8.0),
                child: SizedBox(
                  height: 60,
                  child: ElevatedButton(
                      style: ButtonStyle(
                        shape: MaterialStateProperty.all<RoundedRectangleBorder>(
                          RoundedRectangleBorder(
                            borderRadius: BorderRadius.circular(8.0),
                            side: const BorderSide(color: Colors.grey),
                          ),
                        ),
                        backgroundColor: MaterialStateProperty.all<Color>(const Color.fromARGB(255, 220, 220, 220)),
                        foregroundColor: MaterialStateProperty.all<Color>(Colors.black),
                      ),
                      onPressed: () {
                        onPressed();
                      },
                      child: Text(text)),
                ),
              ),
            ),
          ],
        ),
        Positioned(left: 20, top: 15, child: Center(child: image))
      ],
    ),
  );
}

String mapTourMode(String mode) {
  var text = "";
  switch (mode) {
    case "pu":
      text += "/ Abholung";
      break;

    case "del":
      text += "/ Auslieferung";
      break;

    case "pudel":
      text += "/ Abholung/Auslieferung";
      break;
  }

  return text;
}