Update outdated PlaybackState enums in QML

With the refractor in f91e9f8, an abstraction over QtMultiMedia was
implemented. New enums for the PlaybackState were created, to not make
the application depend on QtMultiMedia. However, not all code was
updated to make proper use of these new enums.

This in turn caused the screen turned off while playing a video and the
HUD not showing when the video started buffering. This commit fixes
that.

Closes #51

.github/FUNDING.yml

@@ -0,0 +1,13 @@
+# These are supported funding model platforms
+
+github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: heartfin # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+lfx_crowdfunding: # Replace with a single LFX Crowdfunding project-name e.g., cloud-foundry
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

.github/workflows/doxygen.yaml

@@ -0,0 +1,40 @@
+name: doxygen
+run-name: Generate and deploy Doxygen documentation
+on: 
+  push:
+    branches:
+      - "master"
+  workflow_dispatch: {}
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+      - name: Configure pages
+        uses: actions/configure-pages@v3
+      - name: Install the doxyqml filter
+        run: pip install doxyqml
+      - name: Doxygen
+        uses: mattnotmitt/doxygen-action@edge
+      - name: Upload GitHub pages artifact
+        uses: "actions/upload-pages-artifact@v2"
+        with:
+          path: "doxygen/html/"
+
+  deploy:
+    runs-on: ubuntu-latest
+    needs: build
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: "actions/deploy-pages@v2"

.gitignore

@@ -5,7 +5,9 @@ rpm/*.spec
 build/
 build-*/
 .dub/
+doxygen/
 
 # IDE files
 *.user
 CMakeLists.txt.user.*
+compile_commands.json

.gitmodules

@@ -0,0 +1,6 @@
+[submodule "core/doc/doxygen-awesome-css"]
+	path = core/doc/doxygen-awesome-css
+	url = https://github.com/jothepro/doxygen-awesome-css.git
+[submodule "3rdparty/doxygen-awesome-css"]
+	path = 3rdparty/doxygen-awesome-css
+	url = https://github.com/jothepro/doxygen-awesome-css.git

3rdparty/doxygen-awesome-css

@@ -0,0 +1 @@
+Subproject commit 5b27b3a747ca1e559fa54149762cca0bad6036fb

CMakeLists.txt

@@ -4,7 +4,6 @@ set (CMAKE_CXX_STANDARD 17)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/")
 set(CMAKE_AUTOMOC ON)
 cmake_policy(SET CMP0048 NEW)
-set(CMAKE_CXX_STANDARD 17)
 
 # Options
 option(PLATFORM_SAILFISHOS "Build SailfishOS version of application" OFF)

README.md

@@ -1,8 +1,51 @@
 # Sailfin
+[!["Chat via Matrix"](https://img.shields.io/matrix/sailfin:netsoj.nl?label=Chat%20via%20Matrix&logo=matrix&server_fqdn=meetriks.netsoj.nl&style=for-the-badge)](https://matrix.to/#/#sailfin:netsoj.nl)  
 Sailfin is a [Sailfish OS](https://sailfishos.org) client for [Jellyfin](https://jellyfin.org), a media server, written in C++ and qml.
 
+## Download
+This application can be found on [OpenRepos.net](https://openrepos.net/content/ahappyhuman/sailfin)
+
 ## Screenshots (running on Sailfish OS)
-<img alt="Screenshot showing the library root" src="graphics/screenshot-sailfish-1.png" width="33%" /> <img alt="Screenshot showing TV show page" src="graphics/screenshot-sailfish-2.png" width="33%" /> <img alt="Screenshot showing the video player" src="graphics/screenshot-sailfish-3.png" width="33%" />
+<img alt="Screenshot showing the library root" src="graphics/screenshot-sailfish-1.png" width="33%" /> <img alt="Screenshot showing TV show page" src="graphics/screenshot-sailfish-2.png" width="33%" />
+
+## Contributing
+Please [see this page for how the Jellyfin Qt library works](https://heartfin.github.io/harbour-sailfin/guides.html).
+and [see this page for contribution guidelines](https://heartfin.github.io/harbour-sailfin/contributing.html).
+
+## Code layout
+```
+├── 3rdparty               3rd-party libraries
+├── cmake                  Additional CMake modules
+│
+├── core                   The core Qt library named Jellyfin-Qt
+│   ├── codegen            Template files for code generation based on the OpenAPI spec
+│   ├── dbus               DBus interface description files
+│   ├── doc                Extra documentation files for the generated documentation
+│   ├── include            Publically includable files
+│   ├── qrc                Resources for the library
+│   └── src                C++ source code
+│
+├── graphics               Source graphics files, meant to be edited
+│   └── qtquick-theme      Custom graphics for the QtQuick theme 
+│
+├── qtquick                QtQuick application for testing, based on the core library
+│   ├── assets             Custom assets
+│   ├── qml                QML UI files
+│   ├── SailfinStyle       QtQuick theme files
+│   └── src                C++ code
+│
+├── rpm                    Files for packaging the application
+│
+└── sailfish               The Sailfish OS app based on the core library
+    ├── icons              Launcher icons
+    ├── qml                QML UI files
+    │   ├── components     Reusable QML components
+    │   ├── cover          Cover pages
+    │   ├── licenses       Licence texts for libraries
+    │   └── pages          Application pages
+    ├── src                C++ source code
+    └── translations       UI translation files
+```
 
 ## License
 This application is licensed under the LGPLv2.1 license, although you may opt to choose a newer version of the LGPL if you want so.

core/CMakeLists.txt

@@ -13,9 +13,14 @@ include(GNUInstallDirs)
 include(GeneratedSources.cmake)
 
 set(JellyfinQt_SOURCES
+        src/model/controllablesession.cpp
         src/model/deviceprofile.cpp
         src/model/item.cpp
+        src/model/player.cpp
+        src/model/playbackmanager.cpp
+        src/model/playbackreporter.cpp
         src/model/playlist.cpp
+        src/model/remotejellyfinplayback.cpp
         src/model/shuffle.cpp
         src/model/user.cpp
 
@@ -29,6 +34,7 @@ set(JellyfinQt_SOURCES
         src/viewmodel/modelstatus.cpp
         src/viewmodel/playbackmanager.cpp
         src/viewmodel/playlist.cpp
+        src/viewmodel/remotedevice.cpp
         src/viewmodel/settings.cpp
         src/viewmodel/userdata.cpp
         src/viewmodel/usermodel.cpp
@@ -46,37 +52,44 @@ set(JellyfinQt_SOURCES
 list(APPEND JellyfinQt_SOURCES ${openapi_SOURCES})
 
 set(JellyfinQt_HEADERS
-        include/JellyfinQt/model/deviceprofile.h
-        include/JellyfinQt/model/item.h
-        include/JellyfinQt/model/playlist.h
-        include/JellyfinQt/model/shuffle.h
-        include/JellyfinQt/model/user.h
-        include/JellyfinQt/support/jsonconv.h
-        include/JellyfinQt/support/jsonconvimpl.h
-        include/JellyfinQt/support/loader.h
-        include/JellyfinQt/support/parseexception.h
-        include/JellyfinQt/viewmodel/item.h
-        include/JellyfinQt/viewmodel/itemmodel.h
-        include/JellyfinQt/viewmodel/loader.h
-        include/JellyfinQt/viewmodel/mediastream.h
-        include/JellyfinQt/viewmodel/modelstatus.h
-        include/JellyfinQt/viewmodel/propertyhelper.h
-        include/JellyfinQt/viewmodel/playbackmanager.h
-        include/JellyfinQt/viewmodel/platformmediacontrol.h
-        include/JellyfinQt/viewmodel/playlist.h
-        include/JellyfinQt/viewmodel/settings.h
-        include/JellyfinQt/viewmodel/userdata.h
-        include/JellyfinQt/viewmodel/usermodel.h
-        include/JellyfinQt/viewmodel/user.h
-        include/JellyfinQt/apiclient.h
-        include/JellyfinQt/apimodel.h
-        include/JellyfinQt/credentialmanager.h
-        include/JellyfinQt/eventbus.h
-        include/JellyfinQt/jellyfin.h
-        include/JellyfinQt/jsonhelper.h
-        include/JellyfinQt/qobjectsettingswrapper.h
-        include/JellyfinQt/serverdiscoverymodel.h
-        include/JellyfinQt/websocket.h)
+    include/JellyfinQt/model/controllablesession.h
+    include/JellyfinQt/model/deviceprofile.h
+    include/JellyfinQt/model/item.h
+    include/JellyfinQt/model/player.h
+    include/JellyfinQt/model/playbackmanager.h
+    include/JellyfinQt/model/playbackreporter.h
+    include/JellyfinQt/model/playlist.h
+    include/JellyfinQt/model/remotejellyfinplayback.h
+    include/JellyfinQt/model/shuffle.h
+    include/JellyfinQt/model/user.h
+    include/JellyfinQt/support/jsonconv.h
+    include/JellyfinQt/support/jsonconvimpl.h
+    include/JellyfinQt/support/loader.h
+    include/JellyfinQt/support/parseexception.h
+    include/JellyfinQt/viewmodel/item.h
+    include/JellyfinQt/viewmodel/itemmodel.h
+    include/JellyfinQt/viewmodel/loader.h
+    include/JellyfinQt/viewmodel/mediastream.h
+    include/JellyfinQt/viewmodel/modelstatus.h
+    include/JellyfinQt/viewmodel/propertyhelper.h
+    include/JellyfinQt/viewmodel/playbackmanager.h
+    include/JellyfinQt/viewmodel/platformmediacontrol.h
+    include/JellyfinQt/viewmodel/playlist.h
+    include/JellyfinQt/viewmodel/remotedevice.h
+    include/JellyfinQt/viewmodel/settings.h
+    include/JellyfinQt/viewmodel/userdata.h
+    include/JellyfinQt/viewmodel/usermodel.h
+    include/JellyfinQt/viewmodel/user.h
+    include/JellyfinQt/viewmodel/utils.h
+    include/JellyfinQt/apiclient.h
+    include/JellyfinQt/apimodel.h
+    include/JellyfinQt/credentialmanager.h
+    include/JellyfinQt/eventbus.h
+    include/JellyfinQt/jellyfin.h
+    include/JellyfinQt/jsonhelper.h
+    include/JellyfinQt/qobjectsettingswrapper.h
+    include/JellyfinQt/serverdiscoverymodel.h
+    include/JellyfinQt/websocket.h)
 
 if (FREEDESKTOP_INTEGRATION)
     list(APPEND JellyfinQt_SOURCES

core/codegen/object_header.hbs

@@ -7,9 +7,22 @@ class {{className}};
 
 class {{className}} {
 public:
-	
+	{{#if hasRequiredProperties}}
+
+	{{className}}(
+	{{#each properties as |p|}}
+	{{#if p.isNotNullable}}
+
+		{{p.typeNameWithQualifiers}} {{p.name}}{{#if p.isLastNonNullable}}{{else}},{{/if}}
+	{{/if}}
+	{{/each}}
+
+	);
+
+	{{else}}
 	{{className}}();
-	
+	{{/if}}
+
 	{{className}}(const {{className}} &other);
 	
 	/**
@@ -60,8 +73,18 @@ protected:
 {{/if}}
 
 {{/each}}
+
+
+{{#if hasRequiredProperties}}
+private:
+	// Private constructor which generates an invalid object, for use withing {{className}}::fromJson();
+	
+	{{className}}();
+{{/if}}
+
 };
 
+
 } // NS DTO
 
 namespace Support {

core/codegen/object_implementation.hbs

@@ -1,5 +1,32 @@
 {{className}}::{{className}}() {}
 
+{{#if hasRequiredProperties}}
+{{className}}::{{className}} (
+
+{{#each properties as |property|}}
+{{#if property.isNotNullable}}
+		
+		{{property.typeNameWithQualifiers}} {{property.name}}{{#if property.isLastNonNullable}} {{else}}, {{/if}}
+
+{{/if}}
+{{/each}}
+		) :
+
+{{#each properties as |property|}}
+{{#if property.isNotNullable}}
+	{{property.memberName}}({{property.name}})
+	{{#if property.isLastNonNullable}}
+ { }
+	{{else}}
+,
+	{{/if}}
+
+{{/if}}
+{{/each}}
+
+
+
+{{/if}}
 
 {{className}}::{{className}}(const {{className}} &other) :
 

core/doc/contributing.md

@@ -0,0 +1,77 @@
+\page contributing Contributing
+\brief All resources for (potential) contributors
+
+This page should contain all resources for people who'd like to contribute to the project. 
+If that happens to be you, thank you for considering to contribute to this project! 
+This page will describe how the process goes, what code style this project uses and more useful information.
+
+# Development process
+Development happens at [GitHub](https://github.com/heartfin/harbour-sailfin). 
+Currently, both the library Jellyfin-Qt and the [Sailfish OS](https://sailfishos.org) app named Sailfin are developed in the same repository.
+
+## Create or find an issue to work on
+If you want to contribute code, please check if an issue exists. 
+Otherwise, create an issue describing what feature you'd like to develop before creating a merge request.
+
+## Start working on your code
+Clone the git repo and create a new branch. 
+If you have commit access to the repository, please create a branch in the form of `<issue-number>-<issue-title>`. 
+For example, `36-control-remote-jellyfin-sessions`.
+
+Now you can start writing your code and create commits. 
+Please create focussed commits, that is, do not commit anything not related to the issue you are working on.
+Also state what you're changing in the commit message and add an entry in the file `rpm/harbour-sailfin.changes`.
+
+If this is your first time contributing to the project, don't be shy and feel free to add your name to the contributors list in `sailfish/qml/pages/AboutPage.qml`!
+
+## Submit a merge request
+Now that you have finalised your commit, you can create a merge request on the repository.
+Make sure that you have followed the contribution guidelines on this page.
+Someone will review it and if all is good, they will merge it in.
+
+Congratulations on your contribution!
+
+# Code style guidelines
+The code should follow the [Sailfish OS Code Conventions](https://docs.sailfishos.org/Develop/Apps/Coding_Conventions/) with the following exceptions:
+
+## Exceptions for C++
+- Put curly braces on the same line as the declaration, example:
+  ```cpp
+  int foo() {
+      // implementation
+  }
+  ```
+  instead of
+  ```cpp
+  int foo()
+  {
+     // implementation
+  }
+  ```
+  Rationale: I hate pressing enter and am used to the former. Moreover, it is already all over the place. Bad rationale, I know.
+
+- Close namespace brackets with a comment in the form `// NS Jellyfin`, example:
+  ```cpp
+  namespace Jellyfin {
+  namespace Nested {
+      // Content
+  } // NS Nested
+  } // NS Jellyfin
+  ```
+  Rationale: Easy to know what namespace the bracket closes, since namespaces tend to span over large portions of a file.
+
+- Use include guards in the form of `NAMESPACE_CLASSNAME_H`. Example:
+  ```cpp
+  #ifndef JELLYFIN_MODEL_USER_H
+  #define JELLYFIN_MODEL_USER_H
+  namespace Jellyfin {
+  namespace Model {
+
+  class User {
+      // Methods etc
+  };
+
+  } // NS Model
+  } // NS Jellyfin
+  ```
+

core/doc/custom.css

@@ -0,0 +1,15 @@
+html {
+		--primary-color: #be48d6;
+		--primary-dark-color: #7a2e89;
+		--primary-light-color #e256ff;
+}
+
+@media (prefers-color-scheme: dark) {
+    html:not(.light-mode) {
+		--primary-color: #be48d6;
+		--primary-dark-color: #7a2e89;
+		--primary-light-color #e256ff;
+    }
+}
+
+

core/doc/guide/apimodel-loader.md

@@ -0,0 +1,5 @@
+\page guide-apimodel-loader ApiModel and Loaders
+\brief This will give an overview of how the ApiModel and Loaders interact.
+
+\todo
+This guide should still be written

core/doc/guide/getting-started.md

@@ -0,0 +1,73 @@
+\page guide-getting-started Getting Started
+\brief Installation procedure and first application using this library
+
+This is a tutorial on how to use Jellyfin Qt library.
+
+## Project setup
+
+The library works as [a QML plugin](https://doc.qt.io/archives/qt-5.6/qqmlextensionplugin.html). 
+Compile the library, install it in the QML plugin path and add a qmldir file like this:
+
+```
+module nl.netsoj.chris.Jellyfin
+plugin JellyfinQt
+```
+
+You should then be able to import it in your QML files.
+
+
+```qml
+import nl.netsoj.chris.Jellyfin
+```
+
+\note
+In the documentation, the URI nl.netsoj.chris.Jellyfin will be used. 
+If you deviate from this, make sure to put the plugin in the correct location,
+as well as using the correct import statements in QML.
+
+## Hello Jellyfin!
+
+The first step for interacting with the library is setting up an \ref Jellyfin::ApiClient. 
+This object handles authentication. 
+
+
+
+\warning
+The way authentication works using ApiClient will change before the next major release to support multiple accounts! See \issue{4}
+
+Lets create an instance of ApiClient that is reachable from everywhere, by putting it in the ApplicationWindow:
+
+```qml
+import nl.netsoj.chris.Jellyfin as JF
+import QtQuick 2.0 as QQ
+
+QQ.ApplicationWindow {
+    readonly property JF.ApiClient apiClient: _apiClient
+
+    JF.ApiClient {
+        id: _apiClient
+        appName: "The name of your client"
+    }
+}
+```
+
+\note
+As an alternative, you could create a QML file only containing the ApiClient and [declaring it as a Singleton](https://doc.qt.io/archives/qt-5.6/qtqml-modules-qmldir.html#contents-of-a-module-definition-qmldir-file)
+
+## Authentication
+If the user already has logged in and the credentials are stored, this is quite easy: 
+the \ref Jellyfin::ApiClient::authenticated "authenticated" property will change to true and the corresponding signal will fire.
+You don't have to do anything else!
+
+When the user never has logged in, the signal \ref Jellyfin::ApiClient::setupRequired "setupRequired()" will be fired.
+When this happens, you should let the user enter a server URL and set it as the \ref Jellyfin::ApiClient::baseUrl "baseUrl" property.
+You can get a list model of servers in the local network using the \ref Jellyfin::ServerDiscoveryModel.
+
+After the \ref Jellyfin::ApiClient::baseUrl "baseUrl" property has been set, the slot \ref Jellyfin::ApiClient::authenticate "authenticate" should be called with an username and password.
+When authentication was successful, the property \ref Jellyfin::ApiClient::authenticated "authenticated" will be changed to true. 
+Otherwise, the signal \ref Jellyfin::ApiClient::authenticationError "authenticationError" will be fired.
+
+\note
+To show a list of available users, one can use the \ref Jellyfin::ViewModel::UserModel "UserModel" and \ref Jellyfin::ViewModel::PublicUsersLoader "PublicUsersLoader".
+However, this requires knowledge of the Loader and Model system, which will be explained in the next chapter \ref guide-apimodel-loader
+

core/doc/guides.md

@@ -0,0 +1,10 @@
+\page guides Usage guides
+
+\brief All guides intended for developers working with this library.
+
+All guides assume familiarity with QML. If you aren't, [the free online QML book](https://www.qt.io/product/qt6/qml-book) is a great place to start.
+Note that this book is written for Qt 6 QML, while this project is using Qt 5 QML.
+The differences between those versions are not large, so it still is a valuable resource.
+
+* \subpage guide-getting-started
+* \subpage guide-apimodel-loader

core/doc/mainpage.md

@@ -0,0 +1,11 @@
+\mainpage
+
+\note 
+This page is aimed at developers. If you are interested in using a Jellyfin application, please visit the [main website](https://heartfin.github.io/).
+
+This is the documentation page for the Jellyfin Qt library, a library for the [Qt framework](https://qt.io/) for interacting with the [Jellyfin media server](https://jellyfin.org).
+This project is not affiliated with the Jellyfin project.
+
+If you are planning on using this projects, see \ref guides for usage instructions and the reference documentation in the sidebar.
+
+If you'd like to contribute code, see \ref contributing for the process and style guidelines.

core/doc/namespace/dto.dox

@@ -0,0 +1,4 @@
+/**
+ * \namespace Jellyfin::DTO
+ * \brief Contains auto-generated Data Transfer Objects for the Jellyfin HTTP API
+ */

core/doc/namespace/viewmodel.dox

@@ -0,0 +1,4 @@
+/**
+ * \namespace Jellyfin::ViewModel
+ * \brief Contains all types exposed to QML
+ */

core/include/JellyfinQt/apiclient.h

@@ -41,6 +41,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 
 #include "dto/generalcommandtype.h"
 #include "credentialmanager.h"
+#include "model/controllablesession.h"
 #include "model/deviceprofile.h"
 #include "eventbus.h"
 
@@ -96,6 +97,8 @@ public:
     explicit ApiClient(QObject *parent = nullptr);
     virtual ~ApiClient();
     Q_PROPERTY(QString baseUrl READ baseUrl WRITE setBaseUrl NOTIFY baseUrlChanged)
+    Q_PROPERTY(QString appName READ appName WRITE setAppName NOTIFY appNameChanged)
+    Q_PROPERTY(Jellyfin::Model::DeviceTypeClass::Value deviceType READ deviceType WRITE setDeviceType NOTIFY deviceTypeChanged)
     Q_PROPERTY(bool authenticated READ authenticated WRITE setAuthenticated NOTIFY authenticatedChanged)
     Q_PROPERTY(QString userId READ userId NOTIFY userIdChanged)
     Q_PROPERTY(QJsonObject deviceProfile READ deviceProfileJson NOTIFY deviceProfileChanged)
@@ -114,6 +117,9 @@ public:
 
     bool authenticated() const;
     void setBaseUrl(const QString &url);
+    void setAppName(const QString &appName);
+    void setDeviceType(Model::DeviceType deviceType);
+
     QNetworkReply *get(const QString &path, const QUrlQuery &params = QUrlQuery());
     QNetworkReply *post(const QString &path, const QJsonDocument &data, const QUrlQuery &params = QUrlQuery());
     QNetworkReply *post(const QString &path, const QByteArray &data = QByteArray(), const QUrlQuery &params = QUrlQuery());
@@ -127,8 +133,10 @@ public:
     Q_ENUM(ApiError)
 
     const QString &baseUrl() const;
+    const QString &appName() const;
     const QString &userId() const;
     const QString &deviceId() const;
+    Model::DeviceType deviceType() const;
     /**
      * @brief QML applications can set this type to indicate which commands they support.
      *
@@ -185,6 +193,7 @@ signals:
 
     void authenticatedChanged(bool authenticated);
     void baseUrlChanged(const QString &baseUrl);
+    void appNameChanged(const QString &newAppName);
     void settingsChanged();
 
     /**
@@ -196,9 +205,18 @@ signals:
     void userIdChanged(QString userId);
 
     void deviceProfileChanged();
+    void deviceTypeChanged();
 
     void supportedCommandsChanged();
     void onlineChanged();
+    /**
+     * @brief Emitted after submitQuickConnectCode succeeded
+     */
+    void quickConnectAccepted();
+    /**
+     * @brief Emitted after submitQuickConnectCode failed
+     */
+    void quickConnectRejected();
 
     /**
      * @brief onUserDataChanged Emitted when the user data of an item is changed on the server.
@@ -223,6 +241,7 @@ public slots:
      */
     void setupConnection();
     void authenticate(QString username, QString password, bool storeCredentials = false);
+    void submitQuickConnectCode(const QString &code);
 
     /**
      * @brief Logs the user out and clears the session.

core/include/JellyfinQt/apimodel.h

@@ -249,6 +249,12 @@ extern template void setRequestLimit(Loader::GetItemsByUserIdParams &params, int
 extern template bool setRequestStartIndex(Loader::GetItemsByUserIdParams &params, int offset);
 extern template void setRequestLimit(Loader::GetResumeItemsParams &params, int limit);
 extern template bool setRequestStartIndex(Loader::GetResumeItemsParams &params, int offset);
+extern template void setRequestLimit(Loader::GetPublicUsersParams &params, int limit);
+extern template bool setRequestStartIndex(Loader::GetPublicUsersParams &params, int offset);
+extern template void setRequestLimit(Loader::GetNextUpParams &params, int limit);
+extern template bool setRequestStartIndex(Loader::GetNextUpParams &params, int offset);
+extern template void setRequestLimit(Loader::GetAlbumArtistsParams &params, int limit);
+extern template bool setRequestStartIndex(Loader::GetAlbumArtistsParams &params, int offset);
 
 extern template QList<DTO::UserDto> extractRecords(const QList<DTO::UserDto> &result);
 extern template int extractTotalRecordCount(const QList<DTO::UserDto> &result);
@@ -483,6 +489,10 @@ public:
         this->endResetModel();
     }
 
+    const QList<QSharedPointer<T>> &toList() {
+        return m_array;
+    }
+
     // From AbstractListModel, gets implemented in ApiModel<T>
     //virtual QHash<int, QByteArray> roleNames() const override = 0;
     /*virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override = 0;*/

core/include/JellyfinQt/dto/accessschedule.h

@@ -48,7 +48,14 @@ namespace DTO {
 
 class AccessSchedule {
 public:
-	AccessSchedule();
+	AccessSchedule(	
+		qint32 jellyfinId,			
+		QString userId,			
+		DynamicDayOfWeek dayOfWeek,			
+		double startHour,			
+		double endHour		
+	);
+
 	AccessSchedule(const AccessSchedule &other);
 	
 	/**
@@ -109,8 +116,13 @@ protected:
 	DynamicDayOfWeek m_dayOfWeek;
 	double m_startHour;
 	double m_endHour;
+
+private:
+	// Private constructor which generates an invalid object, for use withing AccessSchedule::fromJson();
+	AccessSchedule();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/activitylogentry.h

@@ -49,7 +49,13 @@ namespace DTO {
 
 class ActivityLogEntry {
 public:
-	ActivityLogEntry();
+	ActivityLogEntry(	
+		qint64 jellyfinId,													
+		QDateTime date,			
+		QString userId,					
+		LogLevel severity		
+	);
+
 	ActivityLogEntry(const ActivityLogEntry &other);
 	
 	/**
@@ -172,8 +178,13 @@ protected:
 	QString m_userId;
 	QString m_userPrimaryImageTag;
 	LogLevel m_severity;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ActivityLogEntry::fromJson();
+	ActivityLogEntry();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/activitylogentryqueryresult.h

@@ -49,7 +49,11 @@ namespace DTO {
 
 class ActivityLogEntryQueryResult {
 public:
-	ActivityLogEntryQueryResult();
+	ActivityLogEntryQueryResult(			
+		qint32 totalRecordCount,			
+		qint32 startIndex		
+	);
+
 	ActivityLogEntryQueryResult(const ActivityLogEntryQueryResult &other);
 	
 	/**
@@ -96,8 +100,13 @@ protected:
 	QList<ActivityLogEntry> m_items;
 	qint32 m_totalRecordCount;
 	qint32 m_startIndex;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ActivityLogEntryQueryResult::fromJson();
+	ActivityLogEntryQueryResult();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/addvirtualfolderdto.h

@@ -48,7 +48,10 @@ namespace DTO {
 
 class AddVirtualFolderDto {
 public:
-	AddVirtualFolderDto();
+	AddVirtualFolderDto(	
+		QSharedPointer<LibraryOptions> libraryOptions		
+	);
+
 	AddVirtualFolderDto(const AddVirtualFolderDto &other);
 	
 	/**
@@ -69,8 +72,13 @@ public:
 
 protected:
 	QSharedPointer<LibraryOptions> m_libraryOptions = QSharedPointer<LibraryOptions>();
+
+private:
+	// Private constructor which generates an invalid object, for use withing AddVirtualFolderDto::fromJson();
+	AddVirtualFolderDto();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/albuminfo.h

@@ -51,7 +51,10 @@ namespace DTO {
 
 class AlbumInfo {
 public:
-	AlbumInfo();
+	AlbumInfo(																			
+		bool isAutomated								
+	);
+
 	AlbumInfo(const AlbumInfo &other);
 	
 	/**
@@ -200,8 +203,13 @@ protected:
 	QStringList m_albumArtists;
 	QJsonObject m_artistProviderIds;
 	QList<SongInfo> m_songInfos;
+
+private:
+	// Private constructor which generates an invalid object, for use withing AlbumInfo::fromJson();
+	AlbumInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/albuminforemotesearchquery.h

@@ -49,7 +49,12 @@ namespace DTO {
 
 class AlbumInfoRemoteSearchQuery {
 public:
-	AlbumInfoRemoteSearchQuery();
+	AlbumInfoRemoteSearchQuery(	
+		QSharedPointer<AlbumInfo> searchInfo,			
+		QString itemId,					
+		bool includeDisabledProviders		
+	);
+
 	AlbumInfoRemoteSearchQuery(const AlbumInfoRemoteSearchQuery &other);
 	
 	/**
@@ -98,8 +103,13 @@ protected:
 	QString m_itemId;
 	QString m_searchProviderName;
 	bool m_includeDisabledProviders;
+
+private:
+	// Private constructor which generates an invalid object, for use withing AlbumInfoRemoteSearchQuery::fromJson();
+	AlbumInfoRemoteSearchQuery();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/allthememediaresult.h

@@ -48,7 +48,12 @@ namespace DTO {
 
 class AllThemeMediaResult {
 public:
-	AllThemeMediaResult();
+	AllThemeMediaResult(	
+		QSharedPointer<ThemeMediaResult> themeVideosResult,			
+		QSharedPointer<ThemeMediaResult> themeSongsResult,			
+		QSharedPointer<ThemeMediaResult> soundtrackSongsResult		
+	);
+
 	AllThemeMediaResult(const AllThemeMediaResult &other);
 	
 	/**
@@ -81,8 +86,13 @@ protected:
 	QSharedPointer<ThemeMediaResult> m_themeVideosResult = QSharedPointer<ThemeMediaResult>();
 	QSharedPointer<ThemeMediaResult> m_themeSongsResult = QSharedPointer<ThemeMediaResult>();
 	QSharedPointer<ThemeMediaResult> m_soundtrackSongsResult = QSharedPointer<ThemeMediaResult>();
+
+private:
+	// Private constructor which generates an invalid object, for use withing AllThemeMediaResult::fromJson();
+	AllThemeMediaResult();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/artistinfo.h

@@ -51,7 +51,10 @@ namespace DTO {
 
 class ArtistInfo {
 public:
-	ArtistInfo();
+	ArtistInfo(																			
+		bool isAutomated				
+	);
+
 	ArtistInfo(const ArtistInfo &other);
 	
 	/**
@@ -176,8 +179,13 @@ protected:
 	QDateTime m_premiereDate;
 	bool m_isAutomated;
 	QList<SongInfo> m_songInfos;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ArtistInfo::fromJson();
+	ArtistInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/artistinforemotesearchquery.h

@@ -49,7 +49,12 @@ namespace DTO {
 
 class ArtistInfoRemoteSearchQuery {
 public:
-	ArtistInfoRemoteSearchQuery();
+	ArtistInfoRemoteSearchQuery(	
+		QSharedPointer<ArtistInfo> searchInfo,			
+		QString itemId,					
+		bool includeDisabledProviders		
+	);
+
 	ArtistInfoRemoteSearchQuery(const ArtistInfoRemoteSearchQuery &other);
 	
 	/**
@@ -98,8 +103,13 @@ protected:
 	QString m_itemId;
 	QString m_searchProviderName;
 	bool m_includeDisabledProviders;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ArtistInfoRemoteSearchQuery::fromJson();
+	ArtistInfoRemoteSearchQuery();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/authenticateuserbyname.h

@@ -46,8 +46,7 @@ namespace DTO {
 
 
 class AuthenticateUserByName {
-public:
-	AuthenticateUserByName();
+public:	AuthenticateUserByName();
 	AuthenticateUserByName(const AuthenticateUserByName &other);
 	
 	/**
@@ -98,8 +97,11 @@ protected:
 	QString m_username;
 	QString m_pw;
 	QString m_password;
+
+
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/authenticationinfo.h

@@ -48,7 +48,14 @@ namespace DTO {
 
 class AuthenticationInfo {
 public:
-	AuthenticationInfo();
+	AuthenticationInfo(	
+		qint64 jellyfinId,													
+		QString userId,			
+		bool isActive,			
+		QDateTime dateCreated,					
+		QDateTime dateLastActivity				
+	);
+
 	AuthenticationInfo(const AuthenticationInfo &other);
 	
 	/**
@@ -189,8 +196,13 @@ protected:
 	QDateTime m_dateRevoked;
 	QDateTime m_dateLastActivity;
 	QString m_userName;
+
+private:
+	// Private constructor which generates an invalid object, for use withing AuthenticationInfo::fromJson();
+	AuthenticationInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/authenticationinfoqueryresult.h

@@ -49,7 +49,11 @@ namespace DTO {
 
 class AuthenticationInfoQueryResult {
 public:
-	AuthenticationInfoQueryResult();
+	AuthenticationInfoQueryResult(			
+		qint32 totalRecordCount,			
+		qint32 startIndex		
+	);
+
 	AuthenticationInfoQueryResult(const AuthenticationInfoQueryResult &other);
 	
 	/**
@@ -96,8 +100,13 @@ protected:
 	QList<AuthenticationInfo> m_items;
 	qint32 m_totalRecordCount;
 	qint32 m_startIndex;
+
+private:
+	// Private constructor which generates an invalid object, for use withing AuthenticationInfoQueryResult::fromJson();
+	AuthenticationInfoQueryResult();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/authenticationresult.h

@@ -50,7 +50,11 @@ namespace DTO {
 
 class AuthenticationResult {
 public:
-	AuthenticationResult();
+	AuthenticationResult(	
+		QSharedPointer<UserDto> user,			
+		QSharedPointer<SessionInfo> sessionInfo						
+	);
+
 	AuthenticationResult(const AuthenticationResult &other);
 	
 	/**
@@ -93,8 +97,13 @@ protected:
 	QSharedPointer<SessionInfo> m_sessionInfo = QSharedPointer<SessionInfo>();
 	QString m_accessToken;
 	QString m_serverId;
+
+private:
+	// Private constructor which generates an invalid object, for use withing AuthenticationResult::fromJson();
+	AuthenticationResult();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/baseitem.h

@@ -51,7 +51,15 @@ namespace DTO {
 
 class BaseItem {
 public:
-	BaseItem();
+	BaseItem(					
+		QDateTime dateLastSaved,					
+		bool isHD,			
+		bool isShortcut,					
+		qint32 width,			
+		qint32 height,					
+		bool supportsExternalTransfer		
+	);
+
 	BaseItem(const BaseItem &other);
 	
 	/**
@@ -146,8 +154,13 @@ protected:
 	qint32 m_height;
 	QStringList m_extraIds;
 	bool m_supportsExternalTransfer;
+
+private:
+	// Private constructor which generates an invalid object, for use withing BaseItem::fromJson();
+	BaseItem();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/baseitemdto.h

@@ -69,7 +69,20 @@ namespace DTO {
 
 class BaseItemDto {
 public:
-	BaseItemDto();
+	BaseItemDto(							
+		QString jellyfinId,																																							
+		Video3DFormat video3DFormat,																																					
+		PlayAccess playAccess,																																													
+		QSharedPointer<UserItemDataDto> userData,																																																			
+		VideoType videoType,																																			
+		LocationType locationType,			
+		IsoType isoType,																																											
+		ImageOrientation imageOrientation,																													
+		ChannelType channelType,			
+		ProgramAudio audio,																			
+		QSharedPointer<BaseItemDto> currentProgram		
+	);
+
 	BaseItemDto(const BaseItemDto &other);
 	
 	/**
@@ -1700,8 +1713,13 @@ protected:
 	std::optional<bool> m_isPremiere = std::nullopt;
 	QString m_timerId;
 	QSharedPointer<BaseItemDto> m_currentProgram = QSharedPointer<BaseItemDto>();
+
+private:
+	// Private constructor which generates an invalid object, for use withing BaseItemDto::fromJson();
+	BaseItemDto();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/baseitemdtoqueryresult.h

@@ -49,7 +49,11 @@ namespace DTO {
 
 class BaseItemDtoQueryResult {
 public:
-	BaseItemDtoQueryResult();
+	BaseItemDtoQueryResult(			
+		qint32 totalRecordCount,			
+		qint32 startIndex		
+	);
+
 	BaseItemDtoQueryResult(const BaseItemDtoQueryResult &other);
 	
 	/**
@@ -96,8 +100,13 @@ protected:
 	QList<BaseItemDto> m_items;
 	qint32 m_totalRecordCount;
 	qint32 m_startIndex;
+
+private:
+	// Private constructor which generates an invalid object, for use withing BaseItemDtoQueryResult::fromJson();
+	BaseItemDtoQueryResult();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/baseitemperson.h

@@ -46,8 +46,7 @@ namespace DTO {
 
 
 class BaseItemPerson {
-public:
-	BaseItemPerson();
+public:	BaseItemPerson();
 	BaseItemPerson(const BaseItemPerson &other);
 	
 	/**
@@ -134,8 +133,11 @@ protected:
 	QString m_type;
 	QString m_primaryImageTag;
 	QJsonObject m_imageBlurHashes;
+
+
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/bookinfo.h

@@ -48,7 +48,10 @@ namespace DTO {
 
 class BookInfo {
 public:
-	BookInfo();
+	BookInfo(																			
+		bool isAutomated				
+	);
+
 	BookInfo(const BookInfo &other);
 	
 	/**
@@ -173,8 +176,13 @@ protected:
 	QDateTime m_premiereDate;
 	bool m_isAutomated;
 	QString m_seriesName;
+
+private:
+	// Private constructor which generates an invalid object, for use withing BookInfo::fromJson();
+	BookInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/bookinforemotesearchquery.h

@@ -49,7 +49,12 @@ namespace DTO {
 
 class BookInfoRemoteSearchQuery {
 public:
-	BookInfoRemoteSearchQuery();
+	BookInfoRemoteSearchQuery(	
+		QSharedPointer<BookInfo> searchInfo,			
+		QString itemId,					
+		bool includeDisabledProviders		
+	);
+
 	BookInfoRemoteSearchQuery(const BookInfoRemoteSearchQuery &other);
 	
 	/**
@@ -98,8 +103,13 @@ protected:
 	QString m_itemId;
 	QString m_searchProviderName;
 	bool m_includeDisabledProviders;
+
+private:
+	// Private constructor which generates an invalid object, for use withing BookInfoRemoteSearchQuery::fromJson();
+	BookInfoRemoteSearchQuery();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/boxsetinfo.h

@@ -48,7 +48,10 @@ namespace DTO {
 
 class BoxSetInfo {
 public:
-	BoxSetInfo();
+	BoxSetInfo(																			
+		bool isAutomated		
+	);
+
 	BoxSetInfo(const BoxSetInfo &other);
 	
 	/**
@@ -165,8 +168,13 @@ protected:
 	std::optional<qint32> m_parentIndexNumber = std::nullopt;
 	QDateTime m_premiereDate;
 	bool m_isAutomated;
+
+private:
+	// Private constructor which generates an invalid object, for use withing BoxSetInfo::fromJson();
+	BoxSetInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/boxsetinforemotesearchquery.h

@@ -49,7 +49,12 @@ namespace DTO {
 
 class BoxSetInfoRemoteSearchQuery {
 public:
-	BoxSetInfoRemoteSearchQuery();
+	BoxSetInfoRemoteSearchQuery(	
+		QSharedPointer<BoxSetInfo> searchInfo,			
+		QString itemId,					
+		bool includeDisabledProviders		
+	);
+
 	BoxSetInfoRemoteSearchQuery(const BoxSetInfoRemoteSearchQuery &other);
 	
 	/**
@@ -98,8 +103,13 @@ protected:
 	QString m_itemId;
 	QString m_searchProviderName;
 	bool m_includeDisabledProviders;
+
+private:
+	// Private constructor which generates an invalid object, for use withing BoxSetInfoRemoteSearchQuery::fromJson();
+	BoxSetInfoRemoteSearchQuery();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/brandingoptions.h

@@ -46,8 +46,7 @@ namespace DTO {
 
 
 class BrandingOptions {
-public:
-	BrandingOptions();
+public:	BrandingOptions();
 	BrandingOptions(const BrandingOptions &other);
 	
 	/**
@@ -86,8 +85,11 @@ public:
 protected:
 	QString m_loginDisclaimer;
 	QString m_customCss;
+
+
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/bufferrequestdto.h

@@ -48,7 +48,13 @@ namespace DTO {
 
 class BufferRequestDto {
 public:
-	BufferRequestDto();
+	BufferRequestDto(	
+		QDateTime when,			
+		qint64 positionTicks,			
+		bool isPlaying,			
+		QString playlistItemId		
+	);
+
 	BufferRequestDto(const BufferRequestDto &other);
 	
 	/**
@@ -103,8 +109,13 @@ protected:
 	qint64 m_positionTicks;
 	bool m_isPlaying;
 	QString m_playlistItemId;
+
+private:
+	// Private constructor which generates an invalid object, for use withing BufferRequestDto::fromJson();
+	BufferRequestDto();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/channelfeatures.h

@@ -52,7 +52,14 @@ namespace DTO {
 
 class ChannelFeatures {
 public:
-	ChannelFeatures();
+	ChannelFeatures(					
+		bool canSearch,													
+		bool supportsSortOrderToggle,			
+		bool supportsLatestMedia,			
+		bool canFilter,			
+		bool supportsContentDownloading		
+	);
+
 	ChannelFeatures(const ChannelFeatures &other);
 	
 	/**
@@ -201,8 +208,13 @@ protected:
 	bool m_supportsLatestMedia;
 	bool m_canFilter;
 	bool m_supportsContentDownloading;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ChannelFeatures::fromJson();
+	ChannelFeatures();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/channelmappingoptionsdto.h

@@ -51,8 +51,7 @@ namespace DTO {
 
 
 class ChannelMappingOptionsDto {
-public:
-	ChannelMappingOptionsDto();
+public:	ChannelMappingOptionsDto();
 	ChannelMappingOptionsDto(const ChannelMappingOptionsDto &other);
 	
 	/**
@@ -115,8 +114,11 @@ protected:
 	QList<NameIdPair> m_providerChannels;
 	QList<NameValuePair> m_mappings;
 	QString m_providerName;
+
+
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/chapterinfo.h

@@ -48,7 +48,11 @@ namespace DTO {
 
 class ChapterInfo {
 public:
-	ChapterInfo();
+	ChapterInfo(	
+		qint64 startPositionTicks,							
+		QDateTime imageDateModified				
+	);
+
 	ChapterInfo(const ChapterInfo &other);
 	
 	/**
@@ -111,8 +115,13 @@ protected:
 	QString m_imagePath;
 	QDateTime m_imageDateModified;
 	QString m_imageTag;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ChapterInfo::fromJson();
+	ChapterInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/clientcapabilities.h

@@ -52,7 +52,14 @@ namespace DTO {
 
 class ClientCapabilities {
 public:
-	ClientCapabilities();
+	ClientCapabilities(					
+		bool supportsMediaControl,			
+		bool supportsContentUploading,					
+		bool supportsPersistentIdentifier,			
+		bool supportsSync,			
+		QSharedPointer<DeviceProfile> deviceProfile						
+	);
+
 	ClientCapabilities(const ClientCapabilities &other);
 	
 	/**
@@ -137,8 +144,13 @@ protected:
 	QSharedPointer<DeviceProfile> m_deviceProfile = QSharedPointer<DeviceProfile>();
 	QString m_appStoreUrl;
 	QString m_iconUrl;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ClientCapabilities::fromJson();
+	ClientCapabilities();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/clientcapabilitiesdto.h

@@ -52,7 +52,14 @@ namespace DTO {
 
 class ClientCapabilitiesDto {
 public:
-	ClientCapabilitiesDto();
+	ClientCapabilitiesDto(					
+		bool supportsMediaControl,			
+		bool supportsContentUploading,					
+		bool supportsPersistentIdentifier,			
+		bool supportsSync,			
+		QSharedPointer<DeviceProfile> deviceProfile						
+	);
+
 	ClientCapabilitiesDto(const ClientCapabilitiesDto &other);
 	
 	/**
@@ -173,8 +180,13 @@ protected:
 	QSharedPointer<DeviceProfile> m_deviceProfile = QSharedPointer<DeviceProfile>();
 	QString m_appStoreUrl;
 	QString m_iconUrl;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ClientCapabilitiesDto::fromJson();
+	ClientCapabilitiesDto();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/codecprofile.h

@@ -51,7 +51,10 @@ namespace DTO {
 
 class CodecProfile {
 public:
-	CodecProfile();
+	CodecProfile(	
+		CodecType type										
+	);
+
 	CodecProfile(const CodecProfile &other);
 	
 	/**
@@ -104,8 +107,13 @@ protected:
 	QList<ProfileCondition> m_applyConditions;
 	QString m_codec;
 	QString m_container;
+
+private:
+	// Private constructor which generates an invalid object, for use withing CodecProfile::fromJson();
+	CodecProfile();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/collectioncreationresult.h

@@ -47,7 +47,10 @@ namespace DTO {
 
 class CollectionCreationResult {
 public:
-	CollectionCreationResult();
+	CollectionCreationResult(	
+		QString jellyfinId		
+	);
+
 	CollectionCreationResult(const CollectionCreationResult &other);
 	
 	/**
@@ -68,8 +71,13 @@ public:
 
 protected:
 	QString m_jellyfinId;
+
+private:
+	// Private constructor which generates an invalid object, for use withing CollectionCreationResult::fromJson();
+	CollectionCreationResult();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/configurationpageinfo.h

@@ -48,7 +48,11 @@ namespace DTO {
 
 class ConfigurationPageInfo {
 public:
-	ConfigurationPageInfo();
+	ConfigurationPageInfo(			
+		bool enableInMainMenu,									
+		ConfigurationPageType configurationPageType				
+	);
+
 	ConfigurationPageInfo(const ConfigurationPageInfo &other);
 	
 	/**
@@ -139,8 +143,13 @@ protected:
 	QString m_displayName;
 	ConfigurationPageType m_configurationPageType;
 	QString m_pluginId;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ConfigurationPageInfo::fromJson();
+	ConfigurationPageInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/containerprofile.h

@@ -51,7 +51,10 @@ namespace DTO {
 
 class ContainerProfile {
 public:
-	ContainerProfile();
+	ContainerProfile(	
+		DlnaProfileType type						
+	);
+
 	ContainerProfile(const ContainerProfile &other);
 	
 	/**
@@ -88,8 +91,13 @@ protected:
 	DlnaProfileType m_type;
 	QList<ProfileCondition> m_conditions;
 	QString m_container;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ContainerProfile::fromJson();
+	ContainerProfile();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/controlresponse.h

@@ -47,7 +47,10 @@ namespace DTO {
 
 class ControlResponse {
 public:
-	ControlResponse();
+	ControlResponse(					
+		bool isSuccessful		
+	);
+
 	ControlResponse(const ControlResponse &other);
 	
 	/**
@@ -84,8 +87,13 @@ protected:
 	QJsonObject m_headers;
 	QString m_xml;
 	bool m_isSuccessful;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ControlResponse::fromJson();
+	ControlResponse();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/countryinfo.h

@@ -46,8 +46,7 @@ namespace DTO {
 
 
 class CountryInfo {
-public:
-	CountryInfo();
+public:	CountryInfo();
 	CountryInfo(const CountryInfo &other);
 	
 	/**
@@ -110,8 +109,11 @@ protected:
 	QString m_displayName;
 	QString m_twoLetterISORegionName;
 	QString m_threeLetterISORegionName;
+
+
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/createplaylistdto.h

@@ -48,8 +48,7 @@ namespace DTO {
 
 
 class CreatePlaylistDto {
-public:
-	CreatePlaylistDto();
+public:	CreatePlaylistDto();
 	CreatePlaylistDto(const CreatePlaylistDto &other);
 	
 	/**
@@ -112,8 +111,11 @@ protected:
 	QStringList m_ids;
 	QString m_userId;
 	QString m_mediaType;
+
+
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/createuserbyname.h

@@ -46,8 +46,7 @@ namespace DTO {
 
 
 class CreateUserByName {
-public:
-	CreateUserByName();
+public:	CreateUserByName();
 	CreateUserByName(const CreateUserByName &other);
 	
 	/**
@@ -86,8 +85,11 @@ public:
 protected:
 	QString m_name;
 	QString m_password;
+
+
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/culturedto.h

@@ -48,8 +48,7 @@ namespace DTO {
 
 
 class CultureDto {
-public:
-	CultureDto();
+public:	CultureDto();
 	CultureDto(const CultureDto &other);
 	
 	/**
@@ -120,8 +119,11 @@ protected:
 	QString m_twoLetterISOLanguageName;
 	QString m_threeLetterISOLanguageName;
 	QStringList m_threeLetterISOLanguageNames;
+
+
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/defaultdirectorybrowserinfodto.h

@@ -46,8 +46,7 @@ namespace DTO {
 
 
 class DefaultDirectoryBrowserInfoDto {
-public:
-	DefaultDirectoryBrowserInfoDto();
+public:	DefaultDirectoryBrowserInfoDto();
 	DefaultDirectoryBrowserInfoDto(const DefaultDirectoryBrowserInfoDto &other);
 	
 	/**
@@ -74,8 +73,11 @@ public:
 
 protected:
 	QString m_path;
+
+
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/deviceidentification.h

@@ -49,8 +49,7 @@ namespace DTO {
 
 
 class DeviceIdentification {
-public:
-	DeviceIdentification();
+public:	DeviceIdentification();
 	DeviceIdentification(const DeviceIdentification &other);
 	
 	/**
@@ -173,8 +172,11 @@ protected:
 	QString m_manufacturer;
 	QString m_manufacturerUrl;
 	QList<HttpHeaderInfo> m_headers;
+
+
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/deviceinfo.h

@@ -50,7 +50,12 @@ namespace DTO {
 
 class DeviceInfo {
 public:
-	DeviceInfo();
+	DeviceInfo(											
+		QString lastUserId,			
+		QDateTime dateLastActivity,			
+		QSharedPointer<ClientCapabilities> capabilities				
+	);
+
 	DeviceInfo(const DeviceInfo &other);
 	
 	/**
@@ -155,8 +160,13 @@ protected:
 	QDateTime m_dateLastActivity;
 	QSharedPointer<ClientCapabilities> m_capabilities = QSharedPointer<ClientCapabilities>();
 	QString m_iconUrl;
+
+private:
+	// Private constructor which generates an invalid object, for use withing DeviceInfo::fromJson();
+	DeviceInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/deviceinfoqueryresult.h

@@ -49,7 +49,11 @@ namespace DTO {
 
 class DeviceInfoQueryResult {
 public:
-	DeviceInfoQueryResult();
+	DeviceInfoQueryResult(			
+		qint32 totalRecordCount,			
+		qint32 startIndex		
+	);
+
 	DeviceInfoQueryResult(const DeviceInfoQueryResult &other);
 	
 	/**
@@ -96,8 +100,13 @@ protected:
 	QList<DeviceInfo> m_items;
 	qint32 m_totalRecordCount;
 	qint32 m_startIndex;
+
+private:
+	// Private constructor which generates an invalid object, for use withing DeviceInfoQueryResult::fromJson();
+	DeviceInfoQueryResult();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/deviceoptions.h

@@ -46,8 +46,7 @@ namespace DTO {
 
 
 class DeviceOptions {
-public:
-	DeviceOptions();
+public:	DeviceOptions();
 	DeviceOptions(const DeviceOptions &other);
 	
 	/**
@@ -70,8 +69,11 @@ public:
 
 protected:
 	QString m_customName;
+
+
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/deviceprofile.h

@@ -58,7 +58,20 @@ namespace DTO {
 
 class DeviceProfile {
 public:
-	DeviceProfile();
+	DeviceProfile(					
+		QSharedPointer<DeviceIdentification> identification,																			
+		bool enableAlbumArtInDidl,			
+		bool enableSingleAlbumArtLimit,			
+		bool enableSingleSubtitleLimit,									
+		qint32 maxAlbumArtWidth,			
+		qint32 maxAlbumArtHeight,																			
+		qint32 timelineOffsetSeconds,			
+		bool requiresPlainVideoItems,			
+		bool requiresPlainFolders,			
+		bool enableMSMediaReceiverRegistrar,			
+		bool ignoreTranscodeByteRangeRequests																
+	);
+
 	DeviceProfile(const DeviceProfile &other);
 	
 	/**
@@ -515,8 +528,13 @@ protected:
 	QList<CodecProfile> m_codecProfiles;
 	QList<ResponseProfile> m_responseProfiles;
 	QList<SubtitleProfile> m_subtitleProfiles;
+
+private:
+	// Private constructor which generates an invalid object, for use withing DeviceProfile::fromJson();
+	DeviceProfile();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/deviceprofileinfo.h

@@ -48,7 +48,10 @@ namespace DTO {
 
 class DeviceProfileInfo {
 public:
-	DeviceProfileInfo();
+	DeviceProfileInfo(					
+		DeviceProfileType type		
+	);
+
 	DeviceProfileInfo(const DeviceProfileInfo &other);
 	
 	/**
@@ -93,8 +96,13 @@ protected:
 	QString m_jellyfinId;
 	QString m_name;
 	DeviceProfileType m_type;
+
+private:
+	// Private constructor which generates an invalid object, for use withing DeviceProfileInfo::fromJson();
+	DeviceProfileInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/directplayprofile.h

@@ -48,7 +48,10 @@ namespace DTO {
 
 class DirectPlayProfile {
 public:
-	DirectPlayProfile();
+	DirectPlayProfile(							
+		DlnaProfileType type		
+	);
+
 	DirectPlayProfile(const DirectPlayProfile &other);
 	
 	/**
@@ -93,8 +96,13 @@ protected:
 	QString m_audioCodec;
 	QString m_videoCodec;
 	DlnaProfileType m_type;
+
+private:
+	// Private constructor which generates an invalid object, for use withing DirectPlayProfile::fromJson();
+	DirectPlayProfile();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/displaypreferencesdto.h

@@ -49,7 +49,17 @@ namespace DTO {
 
 class DisplayPreferencesDto {
 public:
-	DisplayPreferencesDto();
+	DisplayPreferencesDto(									
+		bool rememberIndexing,			
+		qint32 primaryImageHeight,			
+		qint32 primaryImageWidth,					
+		ScrollDirection scrollDirection,			
+		bool showBackdrop,			
+		bool rememberSorting,			
+		SortOrder sortOrder,			
+		bool showSidebar				
+	);
+
 	DisplayPreferencesDto(const DisplayPreferencesDto &other);
 	
 	/**
@@ -208,8 +218,13 @@ protected:
 	SortOrder m_sortOrder;
 	bool m_showSidebar;
 	QString m_client;
+
+private:
+	// Private constructor which generates an invalid object, for use withing DisplayPreferencesDto::fromJson();
+	DisplayPreferencesDto();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/endpointinfo.h

@@ -46,7 +46,11 @@ namespace DTO {
 
 class EndPointInfo {
 public:
-	EndPointInfo();
+	EndPointInfo(	
+		bool isLocal,			
+		bool isInNetwork		
+	);
+
 	EndPointInfo(const EndPointInfo &other);
 	
 	/**
@@ -73,8 +77,13 @@ public:
 protected:
 	bool m_isLocal;
 	bool m_isInNetwork;
+
+private:
+	// Private constructor which generates an invalid object, for use withing EndPointInfo::fromJson();
+	EndPointInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/externalidinfo.h

@@ -48,7 +48,10 @@ namespace DTO {
 
 class ExternalIdInfo {
 public:
-	ExternalIdInfo();
+	ExternalIdInfo(					
+		ExternalIdMediaType type				
+	);
+
 	ExternalIdInfo(const ExternalIdInfo &other);
 	
 	/**
@@ -105,8 +108,13 @@ protected:
 	QString m_key;
 	ExternalIdMediaType m_type;
 	QString m_urlFormatString;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ExternalIdInfo::fromJson();
+	ExternalIdInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/externalurl.h

@@ -46,8 +46,7 @@ namespace DTO {
 
 
 class ExternalUrl {
-public:
-	ExternalUrl();
+public:	ExternalUrl();
 	ExternalUrl(const ExternalUrl &other);
 	
 	/**
@@ -86,8 +85,11 @@ public:
 protected:
 	QString m_name;
 	QString m_url;
+
+
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/filesystementryinfo.h

@@ -48,7 +48,10 @@ namespace DTO {
 
 class FileSystemEntryInfo {
 public:
-	FileSystemEntryInfo();
+	FileSystemEntryInfo(					
+		FileSystemEntryType type		
+	);
+
 	FileSystemEntryInfo(const FileSystemEntryInfo &other);
 	
 	/**
@@ -93,8 +96,13 @@ protected:
 	QString m_name;
 	QString m_path;
 	FileSystemEntryType m_type;
+
+private:
+	// Private constructor which generates an invalid object, for use withing FileSystemEntryInfo::fromJson();
+	FileSystemEntryInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/fontfile.h

@@ -48,7 +48,12 @@ namespace DTO {
 
 class FontFile {
 public:
-	FontFile();
+	FontFile(			
+		qint64 size,			
+		QDateTime dateCreated,			
+		QDateTime dateModified		
+	);
+
 	FontFile(const FontFile &other);
 	
 	/**
@@ -105,8 +110,13 @@ protected:
 	qint64 m_size;
 	QDateTime m_dateCreated;
 	QDateTime m_dateModified;
+
+private:
+	// Private constructor which generates an invalid object, for use withing FontFile::fromJson();
+	FontFile();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/forgotpassworddto.h

@@ -47,7 +47,10 @@ namespace DTO {
 
 class ForgotPasswordDto {
 public:
-	ForgotPasswordDto();
+	ForgotPasswordDto(	
+		QString enteredUsername		
+	);
+
 	ForgotPasswordDto(const ForgotPasswordDto &other);
 	
 	/**
@@ -72,8 +75,13 @@ public:
 
 protected:
 	QString m_enteredUsername;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ForgotPasswordDto::fromJson();
+	ForgotPasswordDto();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/forgotpasswordresult.h

@@ -49,7 +49,10 @@ namespace DTO {
 
 class ForgotPasswordResult {
 public:
-	ForgotPasswordResult();
+	ForgotPasswordResult(	
+		ForgotPasswordAction action						
+	);
+
 	ForgotPasswordResult(const ForgotPasswordResult &other);
 	
 	/**
@@ -94,8 +97,13 @@ protected:
 	ForgotPasswordAction m_action;
 	QString m_pinFile;
 	QDateTime m_pinExpirationDate;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ForgotPasswordResult::fromJson();
+	ForgotPasswordResult();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/generalcommand.h

@@ -48,7 +48,11 @@ namespace DTO {
 
 class GeneralCommand {
 public:
-	GeneralCommand();
+	GeneralCommand(	
+		GeneralCommandType name,			
+		QString controllingUserId				
+	);
+
 	GeneralCommand(const GeneralCommand &other);
 	
 	/**
@@ -83,8 +87,13 @@ protected:
 	GeneralCommandType m_name;
 	QString m_controllingUserId;
 	QJsonObject m_arguments;
+
+private:
+	// Private constructor which generates an invalid object, for use withing GeneralCommand::fromJson();
+	GeneralCommand();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/getprogramsdto.h

@@ -52,7 +52,12 @@ namespace DTO {
 
 class GetProgramsDto {
 public:
-	GetProgramsDto();
+	GetProgramsDto(			
+		QString userId,																																							
+		bool enableTotalRecordCount,											
+		QString librarySeriesId				
+	);
+
 	GetProgramsDto(const GetProgramsDto &other);
 	
 	/**
@@ -427,8 +432,13 @@ protected:
 	QString m_seriesTimerId;
 	QString m_librarySeriesId;
 	QList<ItemFields> m_fields;
+
+private:
+	// Private constructor which generates an invalid object, for use withing GetProgramsDto::fromJson();
+	GetProgramsDto();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/groupinfodto.h

@@ -51,7 +51,12 @@ namespace DTO {
 
 class GroupInfoDto {
 public:
-	GroupInfoDto();
+	GroupInfoDto(	
+		QString groupId,					
+		GroupStateType state,					
+		QDateTime lastUpdatedAt		
+	);
+
 	GroupInfoDto(const GroupInfoDto &other);
 	
 	/**
@@ -116,8 +121,13 @@ protected:
 	GroupStateType m_state;
 	QStringList m_participants;
 	QDateTime m_lastUpdatedAt;
+
+private:
+	// Private constructor which generates an invalid object, for use withing GroupInfoDto::fromJson();
+	GroupInfoDto();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/guideinfo.h

@@ -47,7 +47,11 @@ namespace DTO {
 
 class GuideInfo {
 public:
-	GuideInfo();
+	GuideInfo(	
+		QDateTime startDate,			
+		QDateTime endDate		
+	);
+
 	GuideInfo(const GuideInfo &other);
 	
 	/**
@@ -82,8 +86,13 @@ public:
 protected:
 	QDateTime m_startDate;
 	QDateTime m_endDate;
+
+private:
+	// Private constructor which generates an invalid object, for use withing GuideInfo::fromJson();
+	GuideInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/httpheaderinfo.h

@@ -48,7 +48,10 @@ namespace DTO {
 
 class HttpHeaderInfo {
 public:
-	HttpHeaderInfo();
+	HttpHeaderInfo(					
+		HeaderMatchType match		
+	);
+
 	HttpHeaderInfo(const HttpHeaderInfo &other);
 	
 	/**
@@ -85,8 +88,13 @@ protected:
 	QString m_name;
 	QString m_value;
 	HeaderMatchType m_match;
+
+private:
+	// Private constructor which generates an invalid object, for use withing HttpHeaderInfo::fromJson();
+	HttpHeaderInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/ignorewaitrequestdto.h

@@ -46,7 +46,10 @@ namespace DTO {
 
 class IgnoreWaitRequestDto {
 public:
-	IgnoreWaitRequestDto();
+	IgnoreWaitRequestDto(	
+		bool ignoreWait		
+	);
+
 	IgnoreWaitRequestDto(const IgnoreWaitRequestDto &other);
 	
 	/**
@@ -71,8 +74,13 @@ public:
 
 protected:
 	bool m_ignoreWait;
+
+private:
+	// Private constructor which generates an invalid object, for use withing IgnoreWaitRequestDto::fromJson();
+	IgnoreWaitRequestDto();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/imagebynameinfo.h

@@ -47,7 +47,10 @@ namespace DTO {
 
 class ImageByNameInfo {
 public:
-	ImageByNameInfo();
+	ImageByNameInfo(							
+		qint64 fileLength				
+	);
+
 	ImageByNameInfo(const ImageByNameInfo &other);
 	
 	/**
@@ -120,8 +123,13 @@ protected:
 	QString m_context;
 	qint64 m_fileLength;
 	QString m_format;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ImageByNameInfo::fromJson();
+	ImageByNameInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/imageinfo.h

@@ -48,7 +48,11 @@ namespace DTO {
 
 class ImageInfo {
 public:
-	ImageInfo();
+	ImageInfo(	
+		ImageType imageType,															
+		qint64 size		
+	);
+
 	ImageInfo(const ImageInfo &other);
 	
 	/**
@@ -151,8 +155,13 @@ protected:
 	std::optional<qint32> m_height = std::nullopt;
 	std::optional<qint32> m_width = std::nullopt;
 	qint64 m_size;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ImageInfo::fromJson();
+	ImageInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/imageoption.h

@@ -47,7 +47,12 @@ namespace DTO {
 
 class ImageOption {
 public:
-	ImageOption();
+	ImageOption(	
+		ImageType type,			
+		qint32 limit,			
+		qint32 minWidth		
+	);
+
 	ImageOption(const ImageOption &other);
 	
 	/**
@@ -88,8 +93,13 @@ protected:
 	ImageType m_type;
 	qint32 m_limit;
 	qint32 m_minWidth;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ImageOption::fromJson();
+	ImageOption();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/imageproviderinfo.h

@@ -49,8 +49,7 @@ namespace DTO {
 
 
 class ImageProviderInfo {
-public:
-	ImageProviderInfo();
+public:	ImageProviderInfo();
 	ImageProviderInfo(const ImageProviderInfo &other);
 	
 	/**
@@ -89,8 +88,11 @@ public:
 protected:
 	QString m_name;
 	QList<ImageType> m_supportedImages;
+
+
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/installationinfo.h

@@ -49,7 +49,11 @@ namespace DTO {
 
 class InstallationInfo {
 public:
-	InstallationInfo();
+	InstallationInfo(	
+		QString guid,					
+		QSharedPointer<Version> version								
+	);
+
 	InstallationInfo(const InstallationInfo &other);
 	
 	/**
@@ -128,8 +132,13 @@ protected:
 	QString m_changelog;
 	QString m_sourceUrl;
 	QString m_checksum;
+
+private:
+	// Private constructor which generates an invalid object, for use withing InstallationInfo::fromJson();
+	InstallationInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/iplugin.h

@@ -49,7 +49,12 @@ namespace DTO {
 
 class IPlugin {
 public:
-	IPlugin();
+	IPlugin(					
+		QString jellyfinId,			
+		QSharedPointer<Version> version,					
+		bool canUninstall				
+	);
+
 	IPlugin(const IPlugin &other);
 	
 	/**
@@ -138,8 +143,13 @@ protected:
 	QString m_assemblyFilePath;
 	bool m_canUninstall;
 	QString m_dataFolderPath;
+
+private:
+	// Private constructor which generates an invalid object, for use withing IPlugin::fromJson();
+	IPlugin();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/itemcounts.h

@@ -46,7 +46,21 @@ namespace DTO {
 
 class ItemCounts {
 public:
-	ItemCounts();
+	ItemCounts(	
+		qint32 movieCount,			
+		qint32 seriesCount,			
+		qint32 episodeCount,			
+		qint32 artistCount,			
+		qint32 programCount,			
+		qint32 trailerCount,			
+		qint32 songCount,			
+		qint32 albumCount,			
+		qint32 musicVideoCount,			
+		qint32 boxSetCount,			
+		qint32 bookCount,			
+		qint32 itemCount		
+	);
+
 	ItemCounts(const ItemCounts &other);
 	
 	/**
@@ -181,8 +195,13 @@ protected:
 	qint32 m_boxSetCount;
 	qint32 m_bookCount;
 	qint32 m_itemCount;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ItemCounts::fromJson();
+	ItemCounts();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/joingrouprequestdto.h

@@ -47,7 +47,10 @@ namespace DTO {
 
 class JoinGroupRequestDto {
 public:
-	JoinGroupRequestDto();
+	JoinGroupRequestDto(	
+		QString groupId		
+	);
+
 	JoinGroupRequestDto(const JoinGroupRequestDto &other);
 	
 	/**
@@ -72,8 +75,13 @@ public:
 
 protected:
 	QString m_groupId;
+
+private:
+	// Private constructor which generates an invalid object, for use withing JoinGroupRequestDto::fromJson();
+	JoinGroupRequestDto();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/libraryoptioninfodto.h

@@ -47,7 +47,10 @@ namespace DTO {
 
 class LibraryOptionInfoDto {
 public:
-	LibraryOptionInfoDto();
+	LibraryOptionInfoDto(			
+		bool defaultEnabled		
+	);
+
 	LibraryOptionInfoDto(const LibraryOptionInfoDto &other);
 	
 	/**
@@ -84,8 +87,13 @@ public:
 protected:
 	QString m_name;
 	bool m_defaultEnabled;
+
+private:
+	// Private constructor which generates an invalid object, for use withing LibraryOptionInfoDto::fromJson();
+	LibraryOptionInfoDto();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/libraryoptions.h

@@ -51,7 +51,23 @@ namespace DTO {
 
 class LibraryOptions {
 public:
-	LibraryOptions();
+	LibraryOptions(	
+		bool enablePhotos,			
+		bool enableRealtimeMonitor,			
+		bool enableChapterImageExtraction,			
+		bool extractChapterImagesDuringLibraryScan,					
+		bool saveLocalMetadata,			
+		bool enableInternetProviders,			
+		bool enableAutomaticSeriesGrouping,			
+		bool enableEmbeddedTitles,			
+		bool enableEmbeddedEpisodeInfos,			
+		qint32 automaticRefreshIntervalDays,																			
+		bool skipSubtitlesIfEmbeddedSubtitlesPresent,			
+		bool skipSubtitlesIfAudioTrackMatches,					
+		bool requirePerfectSubtitleMatch,			
+		bool saveSubtitlesWithMedia				
+	);
+
 	LibraryOptions(const LibraryOptions &other);
 	
 	/**
@@ -246,8 +262,13 @@ protected:
 	bool m_requirePerfectSubtitleMatch;
 	bool m_saveSubtitlesWithMedia;
 	QList<TypeOptions> m_typeOptions;
+
+private:
+	// Private constructor which generates an invalid object, for use withing LibraryOptions::fromJson();
+	LibraryOptions();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/libraryoptionsresultdto.h

@@ -49,8 +49,7 @@ namespace DTO {
 
 
 class LibraryOptionsResultDto {
-public:
-	LibraryOptionsResultDto();
+public:	LibraryOptionsResultDto();
 	LibraryOptionsResultDto(const LibraryOptionsResultDto &other);
 	
 	/**
@@ -113,8 +112,11 @@ protected:
 	QList<LibraryOptionInfoDto> m_metadataReaders;
 	QList<LibraryOptionInfoDto> m_subtitleFetchers;
 	QList<LibraryTypeOptionsDto> m_typeOptions;
+
+
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/librarytypeoptionsdto.h

@@ -51,8 +51,7 @@ namespace DTO {
 
 
 class LibraryTypeOptionsDto {
-public:
-	LibraryTypeOptionsDto();
+public:	LibraryTypeOptionsDto();
 	LibraryTypeOptionsDto(const LibraryTypeOptionsDto &other);
 	
 	/**
@@ -127,8 +126,11 @@ protected:
 	QList<LibraryOptionInfoDto> m_imageFetchers;
 	QList<ImageType> m_supportedImageTypes;
 	QList<ImageOption> m_defaultImageOptions;
+
+
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/libraryupdateinfo.h

@@ -49,7 +49,10 @@ namespace DTO {
 
 class LibraryUpdateInfo {
 public:
-	LibraryUpdateInfo();
+	LibraryUpdateInfo(													
+		bool isEmpty		
+	);
+
 	LibraryUpdateInfo(const LibraryUpdateInfo &other);
 	
 	/**
@@ -138,8 +141,13 @@ protected:
 	QStringList m_itemsUpdated;
 	QStringList m_collectionFolders;
 	bool m_isEmpty;
+
+private:
+	// Private constructor which generates an invalid object, for use withing LibraryUpdateInfo::fromJson();
+	LibraryUpdateInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/listingsproviderinfo.h

@@ -50,7 +50,10 @@ namespace DTO {
 
 class ListingsProviderInfo {
 public:
-	ListingsProviderInfo();
+	ListingsProviderInfo(																			
+		bool enableAllTuners																		
+	);
+
 	ListingsProviderInfo(const ListingsProviderInfo &other);
 	
 	/**
@@ -207,8 +210,13 @@ protected:
 	QString m_moviePrefix;
 	QString m_preferredLanguage;
 	QString m_userAgent;
+
+private:
+	// Private constructor which generates an invalid object, for use withing ListingsProviderInfo::fromJson();
+	ListingsProviderInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/livestreamresponse.h

@@ -48,7 +48,10 @@ namespace DTO {
 
 class LiveStreamResponse {
 public:
-	LiveStreamResponse();
+	LiveStreamResponse(	
+		QSharedPointer<MediaSourceInfo> mediaSource		
+	);
+
 	LiveStreamResponse(const LiveStreamResponse &other);
 	
 	/**
@@ -69,8 +72,13 @@ public:
 
 protected:
 	QSharedPointer<MediaSourceInfo> m_mediaSource = QSharedPointer<MediaSourceInfo>();
+
+private:
+	// Private constructor which generates an invalid object, for use withing LiveStreamResponse::fromJson();
+	LiveStreamResponse();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/livetvinfo.h

@@ -49,7 +49,10 @@ namespace DTO {
 
 class LiveTvInfo {
 public:
-	LiveTvInfo();
+	LiveTvInfo(			
+		bool isEnabled				
+	);
+
 	LiveTvInfo(const LiveTvInfo &other);
 	
 	/**
@@ -98,8 +101,13 @@ protected:
 	QList<LiveTvServiceInfo> m_services;
 	bool m_isEnabled;
 	QStringList m_enabledUsers;
+
+private:
+	// Private constructor which generates an invalid object, for use withing LiveTvInfo::fromJson();
+	LiveTvInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/livetvserviceinfo.h

@@ -50,7 +50,12 @@ namespace DTO {
 
 class LiveTvServiceInfo {
 public:
-	LiveTvServiceInfo();
+	LiveTvServiceInfo(					
+		LiveTvServiceStatus status,							
+		bool hasUpdateAvailable,			
+		bool isVisible				
+	);
+
 	LiveTvServiceInfo(const LiveTvServiceInfo &other);
 	
 	/**
@@ -147,8 +152,13 @@ protected:
 	bool m_hasUpdateAvailable;
 	bool m_isVisible;
 	QStringList m_tuners;
+
+private:
+	// Private constructor which generates an invalid object, for use withing LiveTvServiceInfo::fromJson();
+	LiveTvServiceInfo();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/localizationoption.h

@@ -46,8 +46,7 @@ namespace DTO {
 
 
 class LocalizationOption {
-public:
-	LocalizationOption();
+public:	LocalizationOption();
 	LocalizationOption(const LocalizationOption &other);
 	
 	/**
@@ -78,8 +77,11 @@ public:
 protected:
 	QString m_name;
 	QString m_value;
+
+
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/logfile.h

@@ -48,7 +48,12 @@ namespace DTO {
 
 class LogFile {
 public:
-	LogFile();
+	LogFile(	
+		QDateTime dateCreated,			
+		QDateTime dateModified,			
+		qint64 size				
+	);
+
 	LogFile(const LogFile &other);
 	
 	/**
@@ -105,8 +110,13 @@ protected:
 	QDateTime m_dateModified;
 	qint64 m_size;
 	QString m_name;
+
+private:
+	// Private constructor which generates an invalid object, for use withing LogFile::fromJson();
+	LogFile();
 };
 
+
 } // NS DTO
 
 namespace Support {

core/include/JellyfinQt/dto/mediaattachment.h

@@ -47,7 +47,10 @@ namespace DTO {
 
 class MediaAttachment {
 public:
-	MediaAttachment();
+	MediaAttachment(							
+		qint32 index								
+	);
+
 	MediaAttachment(const MediaAttachment &other);
 	
 	/**
@@ -144,8 +147,13 @@ protected:
 	QString m_fileName;
 	QString m_mimeType;
 	QString m_deliveryUrl;
+
+private:
+	// Private constructor which generates an invalid object, for use withing MediaAttachment::fromJson();
+	MediaAttachment();
 };
 
+
 } // NS DTO
 
 namespace Support {