refactor: mailbox resolution

Signed-off-by: Sebastian Krupinski <krupinski01@gmail.com>

lib/Providers/Mail/Service.php

@@ -468,21 +468,12 @@ class Service implements ServiceBaseInterface, ServiceMutableInterface, ServiceC
         $this->initialize();
 
         $deleteMode = $this->auxiliary['deleteMode'] ?? 'soft';
-        $deleteTarget = $this->auxiliary['deleteTarget'] ?? null;
 
         if ($deleteMode !== 'soft' && $deleteMode !== 'hard') {
             throw new \InvalidArgumentException("Invalid delete mode: $deleteMode");
         }
 
-        $deleteTargetIdentifier = null;
+        $deleteTargetIdentifier = $deleteMode === 'soft' ? $this->resolveDeleteDestination() : null;
-        if ($deleteMode === 'soft') {
-            $deleteTargetIdentifier = $deleteTarget !== null && (string) $deleteTarget !== ''
-                ? new CollectionIdentifier($this->provider(), (string) $this->identifier(), (string) $deleteTarget)
-                : $this->resolveCollectionByRole(CollectionRoles::Trash->value);
-            if ($deleteTargetIdentifier === null) {
-                throw new \RuntimeException('No Trash collection configured or found for deletion');
-            }
-        }
 
         if ($deleteMode === 'soft') {
             $targetMailbox = $this->mailService->collectionFetch((string) $target->collection());
@@ -737,7 +728,6 @@ class Service implements ServiceBaseInterface, ServiceMutableInterface, ServiceC
 
         // determine delete mode and target collection (e.g. Trash) if applicable
         $deleteMode = $this->auxiliary['deleteMode'] ?? 'soft';
-        $deleteTarget = $this->auxiliary['deleteTarget'] ?? null;
         
         if ($deleteMode !== 'soft' && $deleteMode !== 'hard') {
             throw new \InvalidArgumentException("Invalid delete mode: $deleteMode");
@@ -746,15 +736,7 @@ class Service implements ServiceBaseInterface, ServiceMutableInterface, ServiceC
         // connect to remote store
         $this->initialize();
 
-        $deleteTargetIdentifier = null;
+        $deleteTargetIdentifier = $deleteMode === 'soft' ? $this->resolveDeleteDestination() : null;
-        if ($deleteMode === 'soft') {
-            $deleteTargetIdentifier = $deleteTarget !== null && (string) $deleteTarget !== ''
-                ? new CollectionIdentifier($this->provider(), (string) $this->identifier(), (string) $deleteTarget)
-                : $this->resolveCollectionByRole(CollectionRoles::Trash->value);
-            if ($deleteTargetIdentifier === null) {
-                throw new \RuntimeException('No Trash collection configured or found for deletion');
-            }
-        }
 
         $deleteTargetNative = $deleteTargetIdentifier?->collection();
 
@@ -1036,6 +1018,29 @@ class Service implements ServiceBaseInterface, ServiceMutableInterface, ServiceC
         return [$native->toJmap(), $uploads];
     }
 
+    /**
+     * Resolve the collection soft-deleted messages and collections are moved to
+     */
+    private function resolveDeleteDestination(): CollectionIdentifier
+    {
+        $destination = trim((string) ($this->auxiliary['deleteDestination'] ?? ''));
+
+        if ($destination === '') {
+            return $this->resolveCollectionByRole(CollectionRoles::Trash->value)
+                ?? throw new \RuntimeException('No Trash collection configured or found for deletion');
+        }
+
+        $role = CollectionRoles::tryFrom(strtolower($destination));
+        if ($role !== null && $role !== CollectionRoles::None) {
+            $resolved = $this->resolveCollectionByRole($role->value);
+            if ($resolved !== null) {
+                return $resolved;
+            }
+        }
+
+        return new CollectionIdentifier($this->provider(), (string) $this->identifier(), $destination);
+    }
+
     private function resolveCollectionByRole(string $role): ?CollectionIdentifier
     {
         $filter = $this->collectionListFilter();