Refactored DI, serialization, added feedback to document download

lib/core/interceptor/authentication.interceptor.dart

@@ -1,14 +1,12 @@
 import 'dart:developer';
 
 import 'package:flutter/foundation.dart';
-import 'package:paperless_api/paperless_api.dart';
-import 'package:paperless_mobile/core/store/local_vault.dart';
 import 'package:http_interceptor/http_interceptor.dart';
 import 'package:injectable/injectable.dart';
+import 'package:paperless_mobile/core/store/local_vault.dart';
 
-@injectable
-@dev
 @prod
+@injectable
 class AuthenticationInterceptor implements InterceptorContract {
   final LocalVault _localVault;
   AuthenticationInterceptor(this._localVault);
@@ -20,15 +18,15 @@ class AuthenticationInterceptor implements InterceptorContract {
     if (kDebugMode) {
       log("Intercepted ${request.method} request to ${request.url.toString()}");
     }
-    if (auth == null) {
-      throw const PaperlessServerException(ErrorCode.notAuthenticated);
-    }
+
     return request.copyWith(
       //Append server Url
-      url: Uri.parse(auth.serverUrl + request.url.toString()),
-      headers: auth.token.isEmpty
+      headers: auth?.token?.isEmpty ?? true
           ? request.headers
-          : {...request.headers, 'Authorization': 'Token ${auth.token}'},
+          : {
+              ...request.headers,
+              'Authorization': 'Token ${auth!.token}',
+            },
     );
   }
 

lib/core/interceptor/base_url_interceptor.dart

@@ -0,0 +1,28 @@
+import 'package:http_interceptor/http_interceptor.dart';
+import 'package:injectable/injectable.dart';
+import 'package:paperless_mobile/core/store/local_vault.dart';
+
+@prod
+@injectable
+class BaseUrlInterceptor implements InterceptorContract {
+  final LocalVault _localVault;
+
+  BaseUrlInterceptor(this._localVault);
+  @override
+  Future<BaseRequest> interceptRequest({required BaseRequest request}) async {
+    final auth = await _localVault.loadAuthenticationInformation();
+    if (auth == null) {
+      throw Exception(
+        "Authentication information not available, cannot perform request!",
+      );
+    }
+    return request.copyWith(
+      url: Uri.parse(auth.serverUrl + request.url.toString()),
+    );
+  }
+
+  @override
+  Future<BaseResponse> interceptResponse(
+          {required BaseResponse response}) async =>
+      response;
+}

lib/core/interceptor/response_conversion.interceptor.dart

@@ -5,7 +5,6 @@ import 'package:injectable/injectable.dart';
 const interceptedRoutes = ['thumb/'];
 
 @injectable
-@dev
 @prod
 class ResponseConversionInterceptor implements InterceptorContract {
   @override