Initial commit of feedback page

lib/data/feedback.dart

@@ -0,0 +1,52 @@
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:package_info_plus/package_info_plus.dart';
+
+import 'app_language.dart';
+
+enum FeedbackType { question, feedback, trainer }
+
+enum ResponseOption { email, app }
+
+class FeedbackDetails {
+  FeedbackType type;
+  String? subtype;
+  String message;
+  String? email;
+  ResponseOption? responseType;
+  String? worksheet;
+  String? worksheetLang;
+
+  FeedbackDetails({
+    required this.type,
+    this.subtype,
+    this.responseType,
+    required this.message,
+    this.email,
+    this.worksheet,
+    this.worksheetLang,
+  });
+
+  Future<Map<String, Object?>> toJson(WidgetRef ref) async {
+    return {
+      "type": type == FeedbackType.question
+          ? "question"
+          : type == FeedbackType.feedback
+              ? "feedback"
+              : type == FeedbackType.trainer
+                  ? "trainer"
+                  : null,
+      "sub-type": subtype ?? null,
+      "message": message,
+      "e-mail": email ?? null,
+      "response-type": responseType == ResponseOption.app
+          ? "app"
+          : responseType == ResponseOption.email
+              ? "email"
+              : "none",
+      "worksheet": worksheet ?? null,
+      "worksheet-lang": worksheetLang ?? null,
+      "user-lang": ref.read(appLanguageProvider.notifier).build().languageCode,
+      "app-version": (await PackageInfo.fromPlatform()).buildNumber
+    };
+  }
+}