From 321de014840c431ecbb272592606940f9a0a903b Mon Sep 17 00:00:00 2001
From: Jan Romann <jan.romann@hs-emden-leer.de>
Date: Mon, 3 Jun 2024 21:59:21 +0200
Subject: [PATCH] fixup! feat!: implement proper serialization logic

---
 lib/src/core/definitions/form.dart            |  4 ++
 .../interaction_affordance.dart               |  4 ++
 .../core/definitions/thing_description.dart   | 48 +++++++++++++++++++
 lib/src/core/definitions/version_info.dart    |  5 ++
 4 files changed, 61 insertions(+)

diff --git a/lib/src/core/definitions/form.dart b/lib/src/core/definitions/form.dart
index 8df6818a..6b14b60a 100644
--- a/lib/src/core/definitions/form.dart
+++ b/lib/src/core/definitions/form.dart
@@ -128,4 +128,8 @@ class Form {
 
   /// Additional fields collected during the parsing of a JSON object.
   final Map<String, dynamic> additionalFields = {};
+
+  Map<String, dynamic> toJson() {
+    throw UnimplementedError();
+  }
 }
diff --git a/lib/src/core/definitions/interaction_affordances/interaction_affordance.dart b/lib/src/core/definitions/interaction_affordances/interaction_affordance.dart
index 2556cfdc..e6467c1c 100644
--- a/lib/src/core/definitions/interaction_affordances/interaction_affordance.dart
+++ b/lib/src/core/definitions/interaction_affordances/interaction_affordance.dart
@@ -55,4 +55,8 @@ sealed class InteractionAffordance {
 
   /// Additional fields that could not be deserialized as class members.
   final Map<String, dynamic>? additionalFields;
+
+  Map<String, dynamic> toJson() {
+    throw UnimplementedError();
+  }
 }
diff --git a/lib/src/core/definitions/thing_description.dart b/lib/src/core/definitions/thing_description.dart
index de4244c1..fe7ac1a5 100644
--- a/lib/src/core/definitions/thing_description.dart
+++ b/lib/src/core/definitions/thing_description.dart
@@ -168,6 +168,54 @@ class ThingDescription {
       result["description"] = description;
     }
 
+    final version = this.version;
+    if (version != null) {
+      result["version"] = version.toJson();
+    }
+
+    if (created != null) {
+      result["created"] = created.toString();
+    }
+
+    if (modified != null) {
+      result["modified"] = modified.toString();
+    }
+
+    if (support != null) {
+      result["support"] = support.toString();
+    }
+
+    if (base != null) {
+      result["base"] = base.toString();
+    }
+
+    if (id != null) {
+      result["id"] = id;
+    }
+
+    final forms = this.forms;
+    if (forms != null) {
+      result["forms"] = forms.map((form) => form.toJson());
+    }
+
+    final properties = this.properties;
+    if (properties != null) {
+      result["properties"] =
+          properties.map((key, property) => MapEntry(key, property.toJson()));
+    }
+
+    final actions = this.actions;
+    if (actions != null) {
+      result["actions"] =
+          actions.map((key, action) => MapEntry(key, action.toJson()));
+    }
+
+    final events = this.events;
+    if (events != null) {
+      result["events"] =
+          events.map((key, event) => MapEntry(key, event.toJson()));
+    }
+
     return result;
   }
 
diff --git a/lib/src/core/definitions/version_info.dart b/lib/src/core/definitions/version_info.dart
index c2a485e7..c6e0c477 100644
--- a/lib/src/core/definitions/version_info.dart
+++ b/lib/src/core/definitions/version_info.dart
@@ -48,4 +48,9 @@ class VersionInfo {
 
   /// Additional fields collected during the parsing of a JSON object.
   final Map<String, dynamic>? additionalFields;
+
+  /// Converts this [VersionInfo] to a [Map] resembling a JSON object.
+  Map<String, dynamic> toJson() {
+    throw UnimplementedError();
+  }
 }