1. Import

lib/tools/util.dart

@@ -0,0 +1,178 @@
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:shared_preferences/shared_preferences.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;
+    });
+  }
+}
+
+Widget getDefaultButton(String text, Function() onPressed, {Image? image}) {
+  return SizedBox(
+    height: 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;
+}