Improve artifact availability UX

netbox_plugin/netbox_plugin_store/forms.py

@@ -34,21 +34,20 @@ class LifecycleConfirmForm(forms.Form):
         self.runtime = runtime
         self.fields["confirmation"].widget.attrs.update({"autocomplete": "off", "placeholder": plugin.slug})
         self.fields["dry_run"].initial = runtime.default_dry_run
+        self.has_installable_release = True
         if action in {"install", "update"}:
             choices = [
                 (release.version, release.version)
-                for release in plugin.releases
-                if (
-                    release.supports(runtime.netbox_version, plugin)
-                    and release.approved
-                    and release.immutable
-                    and bool(release.sha256)
-                    and (runtime.execution_mode != "agent" or bool(release.approved_payload_sha256))
+                for release in plugin.installable_releases(
+                    runtime.netbox_version,
+                    require_approval_marker=runtime.execution_mode == "agent",
                 )
             ]
             choices.sort(reverse=True)
             self.fields["version"].choices = choices
-            self.fields["version"].required = True
+            self.has_installable_release = bool(choices)
+            self.fields["version"].required = self.has_installable_release
+            self.fields["version"].disabled = not self.has_installable_release
             self.fields["version"].initial = plugin.latest_version
         else:
             self.fields.pop("version")
@@ -64,6 +63,11 @@ class LifecycleConfirmForm(forms.Form):
 
     def clean(self):
         cleaned = super().clean()
+        if self.action in {"install", "update"} and not self.has_installable_release:
+            raise forms.ValidationError(
+                "Keine freigegebene, kompatible Plugin-Version ist verfügbar. "
+                "Das Source-Artefakt muss zunächst im Store synchronisiert und freigegeben werden."
+            )
         if self.runtime.execution_mode == "dry_run" and not cleaned.get("dry_run", False):
             self.add_error("dry_run", "Reale Aktionen sind in execution_mode=dry_run deaktiviert.")
         return cleaned