chore: standardize protocol

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

lib/Controllers/DefaultController.php

@@ -226,34 +226,39 @@ class DefaultController extends ControllerAbstract {
         return match ($operation) {
             // Provider operations
             'provider.list' => $this->providerList($tenantId, $userId, $data),
+            'provider.fetch' => $this->providerFetch($tenantId, $userId, $data),
             'provider.extant' => $this->providerExtant($tenantId, $userId, $data),
             
             // Service operations
             'service.list' => $this->serviceList($tenantId, $userId, $data),
-            'service.extant' => $this->serviceExtant($tenantId, $userId, $data),
             'service.fetch' => $this->serviceFetch($tenantId, $userId, $data),
-            'service.discover' => $this->serviceDiscover($tenantId, $userId, $data),
+            'service.extant' => $this->serviceExtant($tenantId, $userId, $data),
-            'service.test' => $this->serviceTest($tenantId, $userId, $data),
             'service.create' => $this->serviceCreate($tenantId, $userId, $data),
             'service.update' => $this->serviceUpdate($tenantId, $userId, $data),
             'service.delete' => $this->serviceDelete($tenantId, $userId, $data),
+            'service.discover' => $this->serviceDiscover($tenantId, $userId, $data),
+            'service.test' => $this->serviceTest($tenantId, $userId, $data),
             
             // Collection operations
             'collection.list' => $this->collectionList($tenantId, $userId, $data),
-            'collection.extant' => $this->collectionExtant($tenantId, $userId, $data),
             'collection.fetch' => $this->collectionFetch($tenantId, $userId, $data),
+            'collection.extant' => $this->collectionExtant($tenantId, $userId, $data),
             'collection.create' => $this->collectionCreate($tenantId, $userId, $data),
-            'collection.modify' => $this->collectionModify($tenantId, $userId, $data),
+            'collection.update' => $this->collectionUpdate($tenantId, $userId, $data),
-            'collection.destroy' => $this->collectionDestroy($tenantId, $userId, $data),
+            'collection.delete' => $this->collectionDelete($tenantId, $userId, $data),
+            'collection.delta' => throw new InvalidArgumentException('Operation not implemented: ' . $operation),
+            'collection.move' => throw new InvalidArgumentException('Operation not implemented: ' . $operation),
             
             // Entity operations
             'entity.list' => $this->entityList($tenantId, $userId, $data),
-            'entity.delta' => $this->entityDelta($tenantId, $userId, $data),
-            'entity.extant' => $this->entityExtant($tenantId, $userId, $data),
             'entity.fetch' => $this->entityFetch($tenantId, $userId, $data),
+            'entity.extant' => $this->entityExtant($tenantId, $userId, $data),
             'entity.create' => throw new InvalidArgumentException('Operation not implemented: ' . $operation),
             'entity.update' => throw new InvalidArgumentException('Operation not implemented: ' . $operation),
             'entity.delete' => throw new InvalidArgumentException('Operation not implemented: ' . $operation),
+            'entity.delta' => $this->entityDelta($tenantId, $userId, $data),
+            'entity.move' => throw new InvalidArgumentException('Operation not implemented: ' . $operation),
+            'entity.copy' => throw new InvalidArgumentException('Operation not implemented: ' . $operation),
             'entity.transmit' => $this->entityTransmit($tenantId, $userId, $data),
             
             default => throw new InvalidArgumentException('Unknown operation: ' . $operation)
@@ -289,6 +294,18 @@ class DefaultController extends ControllerAbstract {
 
     }
 
+    private function providerFetch(string $tenantId, string $userId, array $data): mixed {
+        
+        if (!isset($data['identifier'])) {
+            throw new InvalidArgumentException(self::ERR_MISSING_IDENTIFIER);
+        }
+        if (!is_string($data['identifier'])) {
+            throw new InvalidArgumentException(self::ERR_INVALID_IDENTIFIER);
+        }
+        
+        return $this->mailManager->providerFetch($tenantId, $userId, $data['identifier']);
+    }
+
     // ==================== Service Operations =====================
 
     private function serviceList(string $tenantId, string $userId, array $data): mixed {
@@ -536,7 +553,7 @@ class DefaultController extends ControllerAbstract {
         );
     }
 
-    private function collectionModify(string $tenantId, string $userId, array $data): mixed {
+    private function collectionUpdate(string $tenantId, string $userId, array $data): mixed {
         if (!isset($data['provider'])) {
             throw new InvalidArgumentException(self::ERR_MISSING_PROVIDER);
         }
@@ -562,7 +579,7 @@ class DefaultController extends ControllerAbstract {
             throw new InvalidArgumentException(self::ERR_INVALID_DATA);
         }
         
-        return $this->mailManager->collectionModify(
+        return $this->mailManager->collectionUpdate(
             $tenantId,
             $userId,
             $data['provider'],
@@ -572,7 +589,7 @@ class DefaultController extends ControllerAbstract {
         );
     }
 
-    private function collectionDestroy(string $tenantId, string $userId, array $data): mixed {
+    private function collectionDelete(string $tenantId, string $userId, array $data): mixed {
         if (!isset($data['provider'])) {
             throw new InvalidArgumentException(self::ERR_MISSING_PROVIDER);
         }
@@ -592,7 +609,7 @@ class DefaultController extends ControllerAbstract {
             throw new InvalidArgumentException(self::ERR_INVALID_IDENTIFIER);
         }
         
-        return $this->mailManager->collectionDestroy(
+        return $this->mailManager->collectionDelete(
             $tenantId,
             $userId,
             $data['provider'],

lib/Manager.php

@@ -621,7 +621,7 @@ class Manager {
      * @return CollectionBaseInterface
      * @throws InvalidArgumentException
      */
-    public function collectionModify(string $tenantId, string $userId, string $providerId, string|int $serviceId, string|int $collectionId, CollectionMutableInterface|array $object): CollectionBaseInterface {
+    public function collectionUpdate(string $tenantId, string $userId, string $providerId, string|int $serviceId, string|int $collectionId, CollectionMutableInterface|array $object): CollectionBaseInterface {
         // retrieve service
         $service = $this->serviceFetch($tenantId, $userId, $providerId, $serviceId);
 
@@ -629,8 +629,8 @@ class Manager {
         if (!($service instanceof ServiceCollectionMutableInterface)) {
             throw new InvalidArgumentException("Service does not support collection mutations");
         }
-        if (!$service->capable(ServiceCollectionMutableInterface::CAPABILITY_COLLECTION_MODIFY)) {
+        if (!$service->capable(ServiceCollectionMutableInterface::CAPABILITY_COLLECTION_UPDATE)) {
-            throw new InvalidArgumentException("Service is not capable of modifying collections");
+            throw new InvalidArgumentException("Service is not capable of updating collections");
         }
 
         if (is_array($object)) {
@@ -640,12 +640,12 @@ class Manager {
             $collection = $object;
         }
         
-        // Modify collection
+        // Update collection
-        return $service->collectionModify($collectionId, $collection);
+        return $service->collectionUpdate($collectionId, $collection);
     }
 
     /**
-     * Destroy a specific collection
+     * Delete a specific collection
      *
      * @since 2025.05.01
      *
@@ -657,23 +657,23 @@ class Manager {
      *
      * @return CollectionBaseInterface|null
      */
-    public function collectionDestroy(string $tenantId, ?string $userId, string $providerId, string|int $serviceId, string|int $collectionId, array $options = []): bool {
+    public function collectionDelete(string $tenantId, ?string $userId, string $providerId, string|int $serviceId, string|int $collectionId, array $options = []): bool {
         // retrieve service
         $service = $this->serviceFetch($tenantId, $userId, $providerId, $serviceId);
 
-        // Check if service supports collection destruction
+        // Check if service supports collection deletion
         if (!($service instanceof ServiceCollectionMutableInterface)) {
             throw new InvalidArgumentException("Service does not support collection mutations");
         }
-        if (!$service->capable(ServiceCollectionMutableInterface::CAPABILITY_COLLECTION_DESTROY)) {
+        if (!$service->capable(ServiceCollectionMutableInterface::CAPABILITY_COLLECTION_DELETE)) {
-            throw new InvalidArgumentException("Service is not capable of destroying collections");
+            throw new InvalidArgumentException("Service is not capable of deleting collections");
         }
 
         $force = $options['force'] ?? false;
         $recursive = $options['recursive'] ?? false;
 
-        // destroy collection
+        // delete collection
-        return $service->collectionDestroy($collectionId, $force, $recursive);
+        return $service->collectionDelete($collectionId, $force, $recursive);
     }
 
     // ==================== Message Operations ====================

src/composables/useMailSync.ts

@@ -37,6 +37,7 @@ export function useMailSync(options: SyncOptions = {}) {
   const lastSync = ref<Date | null>(null);
   const error = ref<string | null>(null);
   const sources = ref<SyncSource[]>([]);
+  const signatures = ref<Record<string, Record<string, Record<string, string>>>>({});
   
   let syncInterval: ReturnType<typeof setInterval> | null = null;
 
@@ -101,12 +102,12 @@ export function useMailSync(options: SyncOptions = {}) {
         
         // Add collections to check with their signatures
         source.collections.forEach(collection => {
-          // Look up signature from entities store first (updated by delta), fallback to collections store
+          // Look up signature from local tracking (updated by delta)
-          let signature = entitiesStore.signatures[source.provider]?.[String(source.service)]?.[String(collection)];
+          let signature = signatures.value[source.provider]?.[String(source.service)]?.[String(collection)];
           
           // Fallback to collection signature if not yet synced
           if (!signature) {
-            const collectionData = collectionsStore.collections[source.provider]?.[String(source.service)]?.[String(collection)];
+            const collectionData = collectionsStore.collection(source.provider, source.service, collection);
             signature = collectionData?.signature || '';
           }
 
@@ -118,7 +119,7 @@ export function useMailSync(options: SyncOptions = {}) {
       });
 
       // Get delta changes
-      const deltaResponse = await entitiesStore.getDelta(deltaSources);
+      const deltaResponse = await entitiesStore.delta(deltaSources);
       // If fetchDetails is enabled, fetch full entity data for additions and modifications
       if (fetchDetails) {
         const fetchPromises: Promise<any>[] = [];
@@ -131,6 +132,18 @@ export function useMailSync(options: SyncOptions = {}) {
                 return;
               }
               
+              // Update signature tracking
+              if (collectionData.signature) {
+                if (!signatures.value[provider]) {
+                  signatures.value[provider] = {};
+                }
+                if (!signatures.value[provider][service]) {
+                  signatures.value[provider][service] = {};
+                }
+                signatures.value[provider][service][collection] = collectionData.signature;
+                console.log(`[Sync] Updated signature for ${provider}/${service}/${collection}: "${collectionData.signature}"`);
+              }
+              
               // Check if signature actually changed (if not, skip fetching)
               const oldSignature = deltaSources[provider]?.[service]?.[collection];
               const newSignature = collectionData.signature;
@@ -149,7 +162,7 @@ export function useMailSync(options: SyncOptions = {}) {
               if (identifiersToFetch.length > 0) {
                 console.log(`[Sync] Fetching ${identifiersToFetch.length} entities for ${provider}/${service}/${collection}`);
                 fetchPromises.push(
-                  entitiesStore.getMessages(
+                  entitiesStore.fetch(
                     provider,
                     service,
                     collection,

src/services/collectionService.ts

@@ -12,28 +12,74 @@ import type {
   CollectionFetchResponse,
   CollectionCreateRequest,
   CollectionCreateResponse,
-  CollectionModifyRequest,
+  CollectionUpdateResponse,
-  CollectionModifyResponse,
+  CollectionUpdateRequest,
-  CollectionDestroyRequest,
+  CollectionDeleteResponse,
-  CollectionDestroyResponse
+  CollectionDeleteRequest,
+  CollectionInterface,
 } from '../types/collection';
+import { useIntegrationStore } from '@KTXC/stores/integrationStore';
+import { CollectionObject } from '../models';
+
+/**
+ * Helper to create the right collection model class based on provider identifier
+ * Uses provider-specific factory if available, otherwise returns base CollectionObject
+ */
+function createCollectionObject(data: CollectionInterface): CollectionObject {
+  const integrationStore = useIntegrationStore();
+  const factoryItem = integrationStore.getItemById('mail_collection_factory', data.provider) as any;
+  const factory = factoryItem?.factory;
+  
+  // Use provider factory if available, otherwise base class
+  return factory ? factory(data) : new CollectionObject().fromJson(data);
+}
 
 export const collectionService = {
 
   /**
-   * List all available collections
+   * Retrieve list of collections, optionally filtered by source selector
    * 
-   * @param request - Collection list request parameters
+   * @param request - list request parameters
-   * @returns Promise with collection list grouped by provider and service
+   * 
+   * @returns Promise with collection object list grouped by provider, service, and collection identifier
    */
-  async list(request: CollectionListRequest = {}): Promise<CollectionListResponse> {
+  async list(request: CollectionListRequest = {}): Promise<Record<string, Record<string, Record<string, CollectionObject>>>> {
-    return await transceivePost<CollectionListRequest, CollectionListResponse>('collection.list', request);
+    const response = await transceivePost<CollectionListRequest, CollectionListResponse>('collection.list', request);
+    
+    // Convert nested response to CollectionObject instances
+    const providerList: Record<string, Record<string, Record<string, CollectionObject>>> = {};
+    Object.entries(response).forEach(([providerId, providerServices]) => {
+      const serviceList: Record<string, Record<string, CollectionObject>> = {};
+      Object.entries(providerServices).forEach(([serviceId, serviceCollections]) => {
+        const collectionList: Record<string, CollectionObject> = {};
+        Object.entries(serviceCollections).forEach(([collectionId, collectionData]) => {
+          collectionList[collectionId] = createCollectionObject(collectionData);
+        });
+        serviceList[serviceId] = collectionList;
+      });
+      providerList[providerId] = serviceList;
+    });
+    
+    return providerList;
   },
 
   /**
-   * Check which collections exist/are available
+   * Retrieve a specific collection by provider and identifier
+   * 
+   * @param request - fetch request parameters
+   * 
+   * @returns Promise with collection object
+   */
+  async fetch(request: CollectionFetchRequest): Promise<CollectionObject> {
+    const response = await transceivePost<CollectionFetchRequest, CollectionFetchResponse>('collection.fetch', request);
+    return createCollectionObject(response);
+  },
+
+  /**
+   * Retrieve collection availability status for a given source selector
+   * 
+   * @param request - extant request parameters
    * 
-   * @param request - Collection extant request with source selector
    * @returns Promise with collection availability status
    */
   async extant(request: CollectionExtantRequest): Promise<CollectionExtantResponse> {
@@ -41,43 +87,38 @@ export const collectionService = {
   },
 
   /**
-   * Fetch a specific collection
+   * Create a new collection
    * 
-   * @param request - Collection fetch request
+   * @param request - create request parameters
-   * @returns Promise with collection details
+   * 
+   * @returns Promise with created collection object
    */
-  async fetch(request: CollectionFetchRequest): Promise<CollectionFetchResponse> {
+  async create(request: CollectionCreateRequest): Promise<CollectionObject> {
-    return await transceivePost<CollectionFetchRequest, CollectionFetchResponse>('collection.fetch', request);
+    const response = await transceivePost<CollectionCreateRequest, CollectionCreateResponse>('collection.create', request);
+    return createCollectionObject(response);
   },
 
   /**
-   * Create a new collection/folder
+   * Update an existing collection
    * 
-   * @param request - Collection creation parameters
+   * @param request - update request parameters
-   * @returns Promise with created collection details
+   * 
+   * @returns Promise with updated collection object
    */
-  async create(request: CollectionCreateRequest): Promise<CollectionCreateResponse> {
+  async update(request: CollectionUpdateRequest): Promise<CollectionObject> {
-    return await transceivePost<CollectionCreateRequest, CollectionCreateResponse>('collection.create', request);
+    const response = await transceivePost<CollectionUpdateRequest, CollectionUpdateResponse>('collection.update', request);
+    return createCollectionObject(response);
   },
 
   /**
-   * Modify an existing collection/folder
+   * Delete a collection
    * 
-   * @param request - Collection modification parameters
+   * @param request - delete request parameters
-   * @returns Promise with modified collection details
-   */
-  async modify(request: CollectionModifyRequest): Promise<CollectionModifyResponse> {
-    return await transceivePost<CollectionModifyRequest, CollectionModifyResponse>('collection.modify', request);
-  },
-
-  /**
-   * Destroy/delete a collection/folder
    * 
-   * @param request - Collection destroy parameters
+   * @returns Promise with deletion result
-   * @returns Promise with destroy operation result
    */
-  async destroy(request: CollectionDestroyRequest): Promise<CollectionDestroyResponse> {
+  async delete(request: CollectionDeleteRequest): Promise<CollectionDeleteResponse> {
-    return await transceivePost<CollectionDestroyRequest, CollectionDestroyResponse>('collection.destroy', request);
+    return await transceivePost<CollectionDeleteRequest, CollectionDeleteResponse>('collection.delete', request);
   },
 };
 

src/services/entityService.ts

@@ -1,119 +1,161 @@
 /**
- * Message/Entity management service
+ * Entity management service
  */
 
 import { transceivePost } from './transceive';
 import type {
-  MessageListRequest,
+  EntityListRequest,
-  MessageListResponse,
+  EntityListResponse,
-  MessageDeltaRequest,
+  EntityFetchRequest,
-  MessageDeltaResponse,
+  EntityFetchResponse,
-  MessageExtantRequest,
+  EntityExtantRequest,
-  MessageExtantResponse,
+  EntityExtantResponse,
-  MessageFetchRequest,
+  EntityCreateRequest,
-  MessageFetchResponse,
+  EntityCreateResponse,
-  MessageSearchRequest,
+  EntityUpdateRequest,
-  MessageSearchResponse,
+  EntityUpdateResponse,
-  MessageSendRequest,
+  EntityDeleteRequest,
-  MessageSendResponse,
+  EntityDeleteResponse,
-  MessageCreateRequest,
+  EntityDeltaRequest,
-  MessageCreateResponse,
+  EntityDeltaResponse,
-  MessageUpdateRequest,
+  EntityTransmitRequest,
-  MessageUpdateResponse,
+  EntityTransmitResponse,
-  MessageDestroyRequest,
+  EntityInterface,
-  MessageDestroyResponse,
 } from '../types/entity';
+import { useIntegrationStore } from '@KTXC/stores/integrationStore';
+import { EntityObject } from '../models';
+
+/**
+ * Helper to create the right entity model class based on provider identifier
+ * Uses provider-specific factory if available, otherwise returns base EntityObject
+ */
+function createEntityObject(data: EntityInterface): EntityObject {
+  const integrationStore = useIntegrationStore();
+  const factoryItem = integrationStore.getItemById('mail_entity_factory', data.provider) as any;
+  const factory = factoryItem?.factory;
+  
+  // Use provider factory if available, otherwise base class
+  return factory ? factory(data) : new EntityObject().fromJson(data);
+}
 
 export const entityService = {
 
   /**
-   * List all available messages
+   * Retrieve list of entities, optionally filtered by source selector
    * 
-   * @param request - Message list request parameters
+   * @param request - list request parameters
-   * @returns Promise with message list grouped by provider, service, and collection
+   * 
+   * @returns Promise with entity object list grouped by provider, service, collection, and entity identifier
    */
-  async list(request: MessageListRequest = {}): Promise<MessageListResponse> {
+  async list(request: EntityListRequest = {}): Promise<Record<string, Record<string, Record<string, Record<string, EntityObject>>>>> {
-    return await transceivePost<MessageListRequest, MessageListResponse>('entity.list', request);
+    const response = await transceivePost<EntityListRequest, EntityListResponse>('entity.list', request);
+    
+    // Convert nested response to EntityObject instances
+    const providerList: Record<string, Record<string, Record<string, Record<string, EntityObject>>>> = {};
+    Object.entries(response).forEach(([providerId, providerServices]) => {
+      const serviceList: Record<string, Record<string, Record<string, EntityObject>>> = {};
+      Object.entries(providerServices).forEach(([serviceId, serviceCollections]) => {
+        const collectionList: Record<string, Record<string, EntityObject>> = {};
+        Object.entries(serviceCollections).forEach(([collectionId, collectionEntities]) => {
+          const entityList: Record<string, EntityObject> = {};
+          Object.entries(collectionEntities).forEach(([entityId, entityData]) => {
+            entityList[entityId] = createEntityObject(entityData);
+          });
+          collectionList[collectionId] = entityList;
+        });
+        serviceList[serviceId] = collectionList;
+      });
+      providerList[providerId] = serviceList;
+    });
+    
+    return providerList;
   },
 
   /**
-   * Get delta changes for messages
+   * Retrieve a specific entity by provider and identifier
+   * 
+   * @param request - fetch request parameters
+   * 
+   * @returns Promise with entity objects keyed by identifier
+   */
+  async fetch(request: EntityFetchRequest): Promise<Record<string, EntityObject>> {
+    const response = await transceivePost<EntityFetchRequest, EntityFetchResponse>('entity.fetch', request);
+    
+    // Convert response to EntityObject instances
+    const list: Record<string, EntityObject> = {};
+    Object.entries(response).forEach(([identifier, entityData]) => {
+      list[identifier] = createEntityObject(entityData);
+    });
+    
+    return list;
+  },
+
+  /**
+   * Retrieve entity availability status for a given source selector
+   * 
+   * @param request - extant request parameters
+   * 
+   * @returns Promise with entity availability status
+   */
+  async extant(request: EntityExtantRequest): Promise<EntityExtantResponse> {
+    return await transceivePost<EntityExtantRequest, EntityExtantResponse>('entity.extant', request);
+  },
+
+  /**
+   * Create a new entity
+   * 
+   * @param request - create request parameters
+   * 
+   * @returns Promise with created entity object
+   */
+  async create(request: EntityCreateRequest): Promise<EntityObject> {
+    const response = await transceivePost<EntityCreateRequest, EntityCreateResponse>('entity.create', request);
+    return createEntityObject(response);
+  },
+
+  /**
+   * Update an existing entity
+   * 
+   * @param request - update request parameters
+   * 
+   * @returns Promise with updated entity object
+   */
+  async update(request: EntityUpdateRequest): Promise<EntityObject> {
+    const response = await transceivePost<EntityUpdateRequest, EntityUpdateResponse>('entity.update', request);
+    return createEntityObject(response);
+  },
+
+  /**
+   * Delete an entity
+   * 
+   * @param request - delete request parameters
+   * 
+   * @returns Promise with deletion result
+   */
+  async delete(request: EntityDeleteRequest): Promise<EntityDeleteResponse> {
+    return await transceivePost<EntityDeleteRequest, EntityDeleteResponse>('entity.delete', request);
+  },
+
+  /**
+   * Retrieve delta changes for entities
+   * 
+   * @param request - delta request parameters
    * 
-   * @param request - Message delta request with source selector
    * @returns Promise with delta changes (created, modified, deleted)
    */
-  async delta(request: MessageDeltaRequest): Promise<MessageDeltaResponse> {
+  async delta(request: EntityDeltaRequest): Promise<EntityDeltaResponse> {
-    return await transceivePost('entity.delta', request);
+    return await transceivePost<EntityDeltaRequest, EntityDeltaResponse>('entity.delta', request);
   },
 
   /**
-   * Check which messages exist/are available
+   * Send an entity
    * 
-   * @param request - Message extant request with source selector
+   * @param request - transmit request parameters
-   * @returns Promise with message availability status
-   */
-  async extant(request: MessageExtantRequest): Promise<MessageExtantResponse> {
-    return await transceivePost('entity.extant', request);
-  },
-
-  /**
-   * Fetch specific messages
    * 
-   * @param request - Message fetch request
+   * @returns Promise with transmission result
-   * @returns Promise with message details
    */
-  async fetch(request: MessageFetchRequest): Promise<MessageFetchResponse> {
+  async transmit(request: EntityTransmitRequest): Promise<EntityTransmitResponse> {
-    return await transceivePost('entity.fetch', request);
+    return await transceivePost<EntityTransmitRequest, EntityTransmitResponse>('entity.transmit', request);
-  },
-
-  /**
-   * Search messages
-   * 
-   * @param request - Message search request
-   * @returns Promise with search results
-   */
-  async search(request: MessageSearchRequest): Promise<MessageSearchResponse> {
-    return await transceivePost('entity.search', request);
-  },
-
-  /**
-   * Send a message
-   * 
-   * @param request - Message send request
-   * @returns Promise with send result
-   */
-  async send(request: MessageSendRequest): Promise<MessageSendResponse> {
-    return await transceivePost('entity.send', request);
-  },
-
-  /**
-   * Create a new message (draft)
-   * 
-   * @param request - Message create request
-   * @returns Promise with created message details
-   */
-  async create(request: MessageCreateRequest): Promise<MessageCreateResponse> {
-    return await transceivePost('entity.create', request);
-  },
-
-  /**
-   * Update an existing message (flags, labels, etc.)
-   * 
-   * @param request - Message update request
-   * @returns Promise with update result
-   */
-  async update(request: MessageUpdateRequest): Promise<MessageUpdateResponse> {
-    return await transceivePost('entity.update', request);
-  },
-
-  /**
-   * Delete/destroy a message
-   * 
-   * @param request - Message destroy request
-   * @returns Promise with destroy result
-   */
-  async destroy(request: MessageDestroyRequest): Promise<MessageDestroyResponse> {
-    return await transceivePost('entity.destroy', request);
   },
 };
 

src/services/providerService.ts

@@ -9,17 +9,31 @@ import type {
   ProviderExtantResponse,
   ProviderFetchRequest,
   ProviderFetchResponse,
+  ProviderInterface,
 } from '../types/provider';
+import { useIntegrationStore } from '@KTXC/stores/integrationStore';
 import { transceivePost } from './transceive';
 import { ProviderObject } from '../models/provider';
 
+/**
+ * Helper to create the right provider model class based on provider identifier
+ * Uses provider-specific factory if available, otherwise returns base ProviderObject
+ */
+function createProviderObject(data: ProviderInterface): ProviderObject {
+  const integrationStore = useIntegrationStore();
+  const factoryItem = integrationStore.getItemById('mail_provider_factory', data.identifier) as any;
+  const factory = factoryItem?.factory;
+  
+  // Use provider factory if available, otherwise base class
+  return factory ? factory(data) : new ProviderObject().fromJson(data);
+}
 
 export const providerService = {
 
   /**
-   * List available providers
+   * Retrieve list of providers, optionally filtered by source selector
    * 
-   * @param request - List request parameters
+   * @param request - list request parameters
    * 
    * @returns Promise with provider object list keyed by provider identifier
    */
@@ -29,28 +43,28 @@ export const providerService = {
     // Convert response to ProviderObject instances
     const list: Record<string, ProviderObject> = {};
     Object.entries(response).forEach(([providerId, providerData]) => {
-      list[providerId] = new ProviderObject().fromJson(providerData);
+      list[providerId] = createProviderObject(providerData);
     });
     
     return list;
   },
 
   /**
-   * Fetch a specific provider
+   * Retrieve specific provider by identifier
    * 
-   * @param request - Fetch request parameters
+   * @param request - fetch request parameters
    * 
    * @returns Promise with provider object
    */
   async fetch(request: ProviderFetchRequest): Promise<ProviderObject> {
     const response = await transceivePost<ProviderFetchRequest, ProviderFetchResponse>('provider.fetch', request);
-    return new ProviderObject().fromJson(response);
+    return createProviderObject(response);
   },
 
   /**
-   * Check which providers exist/are available
+   * Retrieve provider availability status for a given source selector
    * 
-   * @param request - Extant request parameters
+   * @param request - extant request parameters
    * 
    * @returns Promise with provider availability status
    */

src/services/serviceService.ts

@@ -18,13 +18,15 @@ import type {
   ServiceCreateRequest,
   ServiceUpdateResponse,
   ServiceUpdateRequest,
+  ServiceDeleteResponse,
+  ServiceDeleteRequest,
 } from '../types/service';
+import { useIntegrationStore } from '@KTXC/stores/integrationStore';
 import { transceivePost } from './transceive';
 import { ServiceObject } from '../models/service';
-import { useIntegrationStore } from '@KTXC/stores/integrationStore';
 
 /**
- * Helper to create the right service model class based on provider
+ * Helper to create the right service model class based on provider identifier
  * Uses provider-specific factory if available, otherwise returns base ServiceObject
  */
 function createServiceObject(data: ServiceInterface): ServiceObject {
@@ -39,9 +41,9 @@ function createServiceObject(data: ServiceInterface): ServiceObject {
 export const serviceService = {
 
   /**
-   * List available services
+   * Retrieve list of services, optionally filtered by source selector
    * 
-   * @param request - Service list request parameters
+   * @param request - list request parameters
    * 
    * @returns Promise with service object list grouped by provider and keyed by service identifier
    */
@@ -49,31 +51,23 @@ export const serviceService = {
     const response = await transceivePost<ServiceListRequest, ServiceListResponse>('service.list', request);
     
     // Convert nested response to ServiceObject instances
-    const list: Record<string, Record<string, ServiceObject>> = {};
+    const providerList: Record<string, Record<string, ServiceObject>> = {};
     Object.entries(response).forEach(([providerId, providerServices]) => {
-      list[providerId] = {};
+      const serviceList: Record<string, ServiceObject> = {};
       Object.entries(providerServices).forEach(([serviceId, serviceData]) => {
-        list[providerId][serviceId] = createServiceObject(serviceData);
+        serviceList[serviceId] = createServiceObject(serviceData);
       });
+      providerList[providerId] = serviceList;
     });
     
-    return list;
+    return providerList;
   },
 
   /**
-   * Check which services exist/are available
+   * Retrieve a specific service by provider and identifier
    * 
-   * @param request - Service extant request with source selector
+   * @param request - fetch request parameters
-   * @returns Promise with service availability status
-   */
-  async extant(request: ServiceExtantRequest): Promise<ServiceExtantResponse> {
-    return await transceivePost<ServiceExtantRequest, ServiceExtantResponse>('service.extant', request);
-  },
-
-  /**
-   * Fetch a specific service
    * 
-   * @param request - Service fetch request with provider and service IDs
    * @returns Promise with service object
    */
   async fetch(request: ServiceFetchRequest): Promise<ServiceObject> {
@@ -82,9 +76,21 @@ export const serviceService = {
   },
 
   /**
-   * Discover mail service configuration from identity
+   * Retrieve service availability status for a given source selector
+   * 
+   * @param request - extant request parameters
+   * 
+   * @returns Promise with service availability status
+   */
+  async extant(request: ServiceExtantRequest): Promise<ServiceExtantResponse> {
+    return await transceivePost<ServiceExtantRequest, ServiceExtantResponse>('service.extant', request);
+  },
+
+  /**
+   * Retrieve discoverable services for a given source selector, sorted by provider
+   * 
+   * @param request - discover request parameters
    * 
-   * @param request - Discovery request with identity and optional hints
    * @returns Promise with array of discovered services sorted by provider
    */
   async discover(request: ServiceDiscoverRequest): Promise<ServiceObject[]> {
@@ -109,7 +115,7 @@ export const serviceService = {
   },
 
   /**
-   * Test a mail service connection
+   * Test service connectivity and configuration
    * 
    * @param request - Service test request
    * @returns Promise with test results
@@ -121,7 +127,8 @@ export const serviceService = {
   /**
    * Create a new service
    * 
-   * @param request - Service create request with provider ID and service data
+   * @param request - create request parameters
+   * 
    * @returns Promise with created service object
    */
   async create(request: ServiceCreateRequest): Promise<ServiceObject> {
@@ -132,7 +139,8 @@ export const serviceService = {
   /**
    * Update a existing service
    * 
-   * @param request - Service update request with provider ID, service ID, and updated data
+   * @param request - update request parameters
+   * 
    * @returns Promise with updated service object
    */
   async update(request: ServiceUpdateRequest): Promise<ServiceObject> {
@@ -143,11 +151,12 @@ export const serviceService = {
   /**
    * Delete a service
    * 
-   * @param request - Service delete request with provider ID and service ID
+   * @param request - delete request parameters
+   * 
    * @returns Promise with deletion result
    */
   async delete(request: { provider: string; identifier: string | number }): Promise<any> {
-    return await transceivePost('service.delete', request);
+    return await transceivePost<ServiceDeleteRequest, ServiceDeleteResponse>('service.delete', request);
   },
 };
 

src/stores/collectionsStore.ts

@@ -1,169 +1,329 @@
+/**
+ * Collections Store
+ */
+
+import { ref, computed, readonly } from 'vue'
 import { defineStore } from 'pinia'
 import { collectionService } from '../services'
-import type { CollectionInterface, CollectionCreateRequest } from '../types'
+import { CollectionObject } from '../models/collection'
-import { CollectionObject, CollectionPropertiesObject } from '../models/collection'
+import type { SourceSelector, ListFilter, ListSort, CollectionMutableProperties } from '../types'
 
-export const useCollectionsStore = defineStore('mail-collections', {
+export const useCollectionsStore = defineStore('mailCollectionsStore', () => {
-  state: () => ({
+  // State
-    collections: {} as Record<string, Record<string, Record<string, CollectionObject>>>,
+  const _collections = ref<Record<string, CollectionObject>>({})
-    loading: false,
+  const transceiving = ref(false)
-    error: null as string | null,
-  }),
 
-  actions: {
+  /**
-    async loadCollections(sources?: any) {
+   * Get count of collections in store
-      this.loading = true
+   */
-      this.error = null
+  const count = computed(() => Object.keys(_collections.value).length)
+
+  /**
+   * Check if any collections are present in store
+   */
+  const has = computed(() => count.value > 0)
+
+  /**
+   * Get all collections present in store
+   */
+  const collections = computed(() => Object.values(_collections.value))
+
+  /**
+   * Get all collections present in store grouped by service
+   */
+  const collectionsByService = computed(() => {
+    const groups: Record<string, CollectionObject[]> = {}
+    
+    Object.values(_collections.value).forEach((collection) => {
+      const serviceKey = `${collection.provider}:${collection.service}`
+      if (!groups[serviceKey]) {
+        groups[serviceKey] = []
+      }
+      groups[serviceKey].push(collection)
+    })
+    
+    return groups
+  })
+
+  /**
+   * Get a specific collection from store, with optional retrieval
+   * 
+   * @param provider - provider identifier
+   * @param service - service identifier
+   * @param identifier - collection identifier
+   * @param retrieve - Retrieve behavior: true = fetch if missing or refresh, false = cache only
+   * 
+   * @returns Collection object or null
+   */
+  function collection(provider: string, service: string | number, identifier: string | number, retrieve: boolean = false): CollectionObject | null {
+    const key = identifierKey(provider, service, identifier)
+    if (retrieve === true && !_collections.value[key]) {
+      console.debug(`[Mail Manager][Store] - Force fetching collection "${key}"`)
+      fetch(provider, service, identifier)
+    }
+    
+    return _collections.value[key] || null
+  }
+
+  /**
+   * Get all collections for a specific service
+   * 
+   * @param provider - provider identifier
+   * @param service - service identifier
+   * @param retrieve - Retrieve behavior: true = fetch if missing or refresh, false = cache only
+   * 
+   * @returns Array of collection objects
+   */
+  function collectionsForService(provider: string, service: string | number, retrieve: boolean = false): CollectionObject[] {
+    const serviceKeyPrefix = `${provider}:${service}:`
+    const serviceCollections = Object.entries(_collections.value)
+      .filter(([key]) => key.startsWith(serviceKeyPrefix))
+      .map(([_, collection]) => collection)
+    
+    if (retrieve === true && serviceCollections.length === 0) {
+      console.debug(`[Mail Manager][Store] - Force fetching collections for service "${provider}:${service}"`)
+      const sources: SourceSelector = {
+        [provider]: {
+          [String(service)]: true
+        }
+      }
+      list(sources)
+    }
+    
+    return serviceCollections
+  }
+
+  function collectionsInCollection(provider: string, service: string | number, collectionId: string | number, retrieve: boolean = false): CollectionObject[] {
+    const collectionKeyPrefix = `${provider}:${service}:${collectionId}:`
+    const nestedCollections = Object.entries(_collections.value)
+      .filter(([key]) => key.startsWith(collectionKeyPrefix))
+      .map(([_, collection]) => collection)
+    
+    if (retrieve === true && nestedCollections.length === 0) {
+      console.debug(`[Mail Manager][Store] - Force fetching collections in collection "${provider}:${service}:${collectionId}"`)
+      const sources: SourceSelector = {
+        [provider]: {
+          [String(service)]: {
+            [String(collectionId)]: true
+          }
+        }
+      }
+      list(sources)
+    }
+    
+    return nestedCollections
+  }
+
+  /**
+   * Create unique key for a collection
+   */
+  function identifierKey(provider: string, service: string | number | null, identifier: string | number | null): string {
+    return `${provider}:${service ?? ''}:${identifier ?? ''}`
+  }
+
+  // Actions
+  
+  /**
+   * Retrieve all or specific collections, optionally filtered by source selector
+   * 
+   * @param sources - optional source selector
+   * @param filter - optional list filter
+   * @param sort - optional list sort
+   * 
+   * @returns Promise with collection object list keyed by provider, service, and collection identifier
+   */
+  async function list(sources?: SourceSelector, filter?: ListFilter, sort?: ListSort): Promise<Record<string, CollectionObject>> {
+    transceiving.value = true
     try {
-        const response = await collectionService.list({ sources })
+      const response = await collectionService.list({ sources, filter, sort })
 
-        // Response is already in nested object format: provider -> service -> collection
+      // Flatten nested structure: provider:service:collection -> "provider:service:collection": object
-        // Transform to CollectionObject instances
+      const collections: Record<string, CollectionObject> = {}
-        const transformed: Record<string, Record<string, Record<string, CollectionObject>>> = {}
+      Object.entries(response).forEach(([_providerId, providerServices]) => {
+        Object.entries(providerServices).forEach(([_serviceId, serviceCollections]) => {
+          Object.entries(serviceCollections).forEach(([_collectionId, collectionObj]) => {
+            const key = identifierKey(collectionObj.provider, collectionObj.service, collectionObj.identifier)
+            collections[key] = collectionObj
+          })
+        })
+      })
 
-        for (const [providerId, providerData] of Object.entries(response)) {
+      // Merge retrieved collections into state
-          transformed[providerId] = {}
+      _collections.value = { ..._collections.value, ...collections }
 
-          for (const [serviceId, collections] of Object.entries(providerData as any)) {
+      console.debug('[Mail Manager][Store] - Successfully retrieved', Object.keys(collections).length, 'collections')
-            transformed[providerId][serviceId] = {}
+      return collections
-            
-            // Collections come as an object keyed by identifier
-            for (const [collectionId, collection] of Object.entries(collections as any)) {
-              // Create CollectionObject instance with provider and service set
-              const collectionData = {
-                ...collection,
-                provider: providerId,
-                service: serviceId,
-              } as CollectionInterface
-              
-              transformed[providerId][serviceId][collectionId] = new CollectionObject().fromJson(collectionData)
-            }
-          }
-        }
-        
-        this.collections = transformed
     } catch (error: any) {
-        this.error = error.message
+      console.error('[Mail Manager][Store] - Failed to retrieve collections:', error)
       throw error
     } finally {
-        this.loading = false
+      transceiving.value = false
+    }
   }
-    },
   
-    async getCollection(provider: string, service: string | number, collectionId: string | number) {
+  /**
-      this.loading = true
+   * Retrieve a specific collection by provider, service, and identifier
-      this.error = null
+   * 
+   * @param provider - provider identifier
+   * @param service - service identifier
+   * @param identifier - collection identifier
+   * 
+   * @returns Promise with collection object
+   */
+  async function fetch(provider: string, service: string | number, identifier: string | number): Promise<CollectionObject> {
+    transceiving.value = true
     try {
-        const response = await collectionService.fetch({ 
+      const response = await collectionService.fetch({ provider, service, collection: identifier })
+      
+      // Merge fetched collection into state
+      const key = identifierKey(response.provider, response.service, response.identifier)
+      _collections.value[key] = response
+
+      console.debug('[Mail Manager][Store] - Successfully fetched collection:', key)
+      return response
+    } catch (error: any) {
+      console.error('[Mail Manager][Store] - Failed to fetch collection:', error)
+      throw error
+    } finally {
+      transceiving.value = false
+    }
+  }
+
+  /**
+   * Retrieve collection availability status for a given source selector
+   * 
+   * @param sources - source selector to check availability for
+   * 
+   * @returns Promise with collection availability status
+   */
+  async function extant(sources: SourceSelector) {
+    transceiving.value = true
+    try {
+      const response = await collectionService.extant({ sources })
+      
+      console.debug('[Mail Manager][Store] - Successfully checked', sources ? Object.keys(sources).length : 0, 'collections')
+      return response
+    } catch (error: any) {
+      console.error('[Mail Manager][Store] - Failed to check collections:', error)
+      throw error
+    } finally {
+      transceiving.value = false
+    }
+  }
+
+  /**
+   * Create a new collection with given provider, service, and data
+   * 
+   * @param provider - provider identifier for the new collection
+   * @param service - service identifier for the new collection
+   * @param collection - optional parent collection identifier
+   * @param data - collection properties for creation
+   * 
+   * @returns Promise with created collection object
+   */
+  async function create(provider: string, service: string | number, collection: string | number | null, data: CollectionMutableProperties): Promise<CollectionObject> {
+    transceiving.value = true
+    try {
+      const response = await collectionService.create({ 
         provider, 
         service, 
-          collection: collectionId 
+        collection, 
+        properties: data 
       })
       
-        // Create CollectionObject instance
+      // Merge created collection into state
-        const collectionObject = new CollectionObject().fromJson(response)
+      const key = identifierKey(response.provider, response.service, response.identifier)
+      _collections.value[key] = response
       
-        // Update in store
+      console.debug('[Mail Manager][Store] - Successfully created collection:', key)
-        if (!this.collections[provider]) {
+      return response
-          this.collections[provider] = {}
-        }
-        if (!this.collections[provider][String(service)]) {
-          this.collections[provider][String(service)] = {}
-        }
-        this.collections[provider][String(service)][String(collectionId)] = collectionObject
-        
-        return collectionObject
     } catch (error: any) {
-        this.error = error.message
+      console.error('[Mail Manager][Store] - Failed to create collection:', error)
       throw error
     } finally {
-        this.loading = false
+      transceiving.value = false
+    }
   }
-    },
-
-    async createCollection(params: {
-      provider: string
-      service: string | number
-      collection?: string | number | null
-      properties: CollectionPropertiesObject
-    }): Promise<CollectionObject> {
-      this.loading = true
-      this.error = null
 
+  /**
+   * Update an existing collection with given provider, service, identifier, and data
+   * 
+   * @param provider - provider identifier for the collection to update
+   * @param service - service identifier for the collection to update
+   * @param identifier - collection identifier for the collection to update
+   * @param data - collection properties for update
+   * 
+   * @returns Promise with updated collection object
+   */
+  async function update(provider: string, service: string | number, identifier: string | number, data: CollectionMutableProperties): Promise<CollectionObject> {
+    transceiving.value = true
     try {
-        // Prepare request data from CollectionPropertiesObject
+      const response = await collectionService.update({ 
-        const requestData: CollectionCreateRequest = {
+        provider, 
-          provider: params.provider,
+        service, 
-          service: params.service,
+        identifier, 
-          collection: params.collection ?? null,
+        properties: data 
-          properties: {
+      })
-            '@type': 'mail.collection',
-            label: params.properties.label,
-            role: params.properties.role ?? null,
-            rank: params.properties.rank ?? 0,
-            subscribed: params.properties.subscribed ?? true,
-          },
-        }
       
-        // Call service to create collection
+      // Merge updated collection into state
-        const response = await collectionService.create(requestData)
+      const key = identifierKey(response.provider, response.service, response.identifier)
+      _collections.value[key] = response
       
-        // Create CollectionObject instance
+      console.debug('[Mail Manager][Store] - Successfully updated collection:', key)
-        const collectionObject = new CollectionObject().fromJson(response)
+      return response
-        
-        // Update store with new collection
-        const provider = response.provider
-        const service = String(response.service)
-        const identifier = String(response.identifier)
-        
-        if (!this.collections[provider]) {
-          this.collections[provider] = {}
-        }
-        if (!this.collections[provider][service]) {
-          this.collections[provider][service] = {}
-        }
-        
-        this.collections[provider][service][identifier] = collectionObject
-        
-        return collectionObject
     } catch (error: any) {
-        this.error = error.message
+      console.error('[Mail Manager][Store] - Failed to update collection:', error)
       throw error
     } finally {
-        this.loading = false
+      transceiving.value = false
+    }
   }
-    },
-  },
 
-  getters: {
+  /**
-    collectionList: (state) => {
+   * Delete a collection by provider, service, and identifier
-      const list: CollectionObject[] = []
+   * 
-      Object.values(state.collections).forEach(providerCollections => {
+   * @param provider - provider identifier for the collection to delete
-        Object.values(providerCollections).forEach(serviceCollections => {
+   * @param service - service identifier for the collection to delete
-          Object.values(serviceCollections).forEach(collection => {
+   * @param identifier - collection identifier for the collection to delete
-            list.push(collection)
+   * 
-          })
+   * @returns Promise with deletion result
-        })
+   */
-      })
+  async function remove(provider: string, service: string | number, identifier: string | number): Promise<any> {
-      return list
+    transceiving.value = true
-    },
+    try {
+      await collectionService.delete({ provider, service, identifier })
       
-    collectionCount: (state) => {
+      // Remove deleted collection from state
-      let count = 0
+      const key = identifierKey(provider, service, identifier)
-      Object.values(state.collections).forEach(providerCollections => {
+      delete _collections.value[key]
-        Object.values(providerCollections).forEach(serviceCollections => {
-          count += Object.keys(serviceCollections).length
-        })
-      })
-      return count
-    },
 
-    hasCollections: (state) => {
+      console.debug('[Mail Manager][Store] - Successfully deleted collection:', key)
-      return Object.values(state.collections).some(providerCollections =>
+    } catch (error: any) {
-        Object.values(providerCollections).some(serviceCollections =>
+      console.error('[Mail Manager][Store] - Failed to delete collection:', error)
-          Object.keys(serviceCollections).length > 0
+      throw error
-        )
+    } finally {
-      )
+      transceiving.value = false
-    },
+    }
-  },
+  }
+
+  // Return public API
+  return {
+    // State (readonly)
+    transceiving: readonly(transceiving),
+    // Getters
+    count,
+    has,
+    collections,
+    collectionsByService,
+    collectionsForService,
+    collectionsInCollection,
+    // Actions
+    collection,
+    list,
+    fetch,
+    extant,
+    create,
+    update,
+    delete: remove,
+  }
 })

src/stores/entitiesStore.ts

@@ -1,261 +1,369 @@
+/**
+ * Entities Store
+ */
+
+import { ref, computed, readonly } from 'vue'
 import { defineStore } from 'pinia'
 import { entityService } from '../services'
-import type { MessageObject, EntityWrapper, MessageSendRequest } from '../types'
+import { EntityObject } from '../models'
+import type { EntityTransmitRequest, EntityTransmitResponse } from '../types/entity'
+import type { SourceSelector, ListFilter, ListSort, ListRange } from '../types/common'
 
-export const useEntitiesStore = defineStore('mail-entities', {
+export const useEntitiesStore = defineStore('mailEntitiesStore', () => {
-  state: () => ({
+  // State
-    messages: {} as Record<string, Record<string, Record<string, Record<string, EntityWrapper<MessageObject>>>>>,
+  const _entities = ref<Record<string, EntityObject>>({})
-    signatures: {} as Record<string, Record<string, Record<string, string>>>, // Track delta signatures
+  const transceiving = ref(false)
-    loading: false,
-    error: null as string | null,
-  }),
 
-  actions: {
+  /**
-    async loadMessages(sources?: any, filter?: any, sort?: any, range?: any) {
+   * Get count of entities in store
-      this.loading = true
+   */
-      this.error = null
+  const count = computed(() => Object.keys(_entities.value).length)
+
+  /**
+   * Check if any entities are present in store
+   */
+  const has = computed(() => count.value > 0)
+
+  /**
+   * Get all entities present in store
+   */
+  const entities = computed(() => Object.values(_entities.value))
+
+  /**
+   * Get a specific entity from store, with optional retrieval
+   * 
+   * @param provider - provider identifier
+   * @param service - service identifier
+   * @param collection - collection identifier
+   * @param identifier - entity identifier
+   * @param retrieve - Retrieve behavior: true = fetch if missing or refresh, false = cache only
+   * 
+   * @returns Entity object or null
+   */
+  function entity(provider: string, service: string | number, collection: string | number, identifier: string | number, retrieve: boolean = false): EntityObject | null {
+    const key = identifierKey(provider, service, collection, identifier)
+    if (retrieve === true && !_entities.value[key]) {
+      console.debug(`[Mail Manager][Store] - Force fetching entity "${key}"`)
+      fetch(provider, service, collection, [identifier])
+    }
+    
+    return _entities.value[key] || null
+  }
+
+  /**
+   * Get all entities for a specific collection
+   * 
+   * @param provider - provider identifier
+   * @param service - service identifier
+   * @param collection - collection identifier
+   * @param retrieve - Retrieve behavior: true = fetch if missing or refresh, false = cache only
+   * 
+   * @returns Array of entity objects
+   */
+  function entitiesForCollection(provider: string, service: string | number, collection: string | number, retrieve: boolean = false): EntityObject[] {
+    const collectionKeyPrefix = `${provider}:${service}:${collection}:`
+    const collectionEntities = Object.entries(_entities.value)
+      .filter(([key]) => key.startsWith(collectionKeyPrefix))
+      .map(([_, entity]) => entity)
+    
+    if (retrieve === true && collectionEntities.length === 0) {
+      console.debug(`[Mail Manager][Store] - Force fetching entities for collection "${provider}:${service}:${collection}"`)
+      const sources: SourceSelector = {
+        [provider]: {
+          [String(service)]: {
+            [String(collection)]: true
+          }
+        }
+      }
+      list(sources)
+    }
+    
+    return collectionEntities
+  }
+
+  /**
+   * Create unique key for an entity
+   */
+  function identifierKey(provider: string, service: string | number, collection: string | number, identifier: string | number): string {
+    return `${provider}:${service}:${collection}:${identifier}`
+  }
+
+  // Actions
+  
+  /**
+   * Retrieve all or specific entities, optionally filtered by source selector
+   * 
+   * @param sources - optional source selector
+   * @param filter - optional list filter
+   * @param sort - optional list sort
+   * @param range - optional list range
+   * 
+   * @returns Promise with entity object list keyed by identifier
+   */
+  async function list(sources?: SourceSelector, filter?: ListFilter, sort?: ListSort, range?: ListRange): Promise<Record<string, EntityObject>> {
+    transceiving.value = true
     try {
       const response = await entityService.list({ sources, filter, sort, range })
 
-        // Entities come as objects keyed by identifier
+      // Flatten nested structure: provider:service:collection:entity -> "provider:service:collection:entity": object
-        Object.entries(response).forEach(([provider, providerData]) => {
+      const entities: Record<string, EntityObject> = {}
-          Object.entries(providerData).forEach(([service, serviceData]) => {
+      Object.entries(response).forEach(([providerId, providerServices]) => {
-            Object.entries(serviceData).forEach(([collection, entities]) => {
+        Object.entries(providerServices).forEach(([serviceId, serviceCollections]) => {
-              if (!this.messages[provider]) {
+          Object.entries(serviceCollections).forEach(([collectionId, collectionEntities]) => {
-                this.messages[provider] = {}
+            Object.entries(collectionEntities).forEach(([entityId, entityData]) => {
-              }
+              const key = identifierKey(providerId, serviceId, collectionId, entityId)
-              if (!this.messages[provider][service]) {
+              entities[key] = entityData
-                this.messages[provider][service] = {}
+            })
-              }
+          })
-              if (!this.messages[provider][service][collection]) {
+        })
-                this.messages[provider][service][collection] = {}
+      })
-              }
 
-              // Entities are already keyed by identifier
+      // Merge retrieved entities into state
-              this.messages[provider][service][collection] = entities as Record<string, EntityWrapper<MessageObject>>
+      _entities.value = { ..._entities.value, ...entities }
-            })
+
-          })
+      console.debug('[Mail Manager][Store] - Successfully retrieved', Object.keys(entities).length, 'entities')
-        })
+      return entities
     } catch (error: any) {
-        this.error = error.message
+      console.error('[Mail Manager][Store] - Failed to retrieve entities:', error)
       throw error
     } finally {
-        this.loading = false
+      transceiving.value = false
+    }
   }
-    },
   
-    async getMessages(
+  /**
-      provider: string, 
+   * Retrieve specific entities by provider, service, collection, and identifiers
-      service: string | number, 
+   * 
-      collection: string | number,
+   * @param provider - provider identifier
-      identifiers: (string | number)[],
+   * @param service - service identifier
-      properties?: string[]
+   * @param collection - collection identifier
-    ) {
+   * @param identifiers - array of entity identifiers to fetch
-      this.loading = true
+   * 
-      this.error = null
+   * @returns Promise with entity objects keyed by identifier
+   */
+  async function fetch(provider: string, service: string | number, collection: string | number, identifiers: (string | number)[]): Promise<Record<string, EntityObject>> {
+    transceiving.value = true
     try {
-        const response = await entityService.fetch({ 
+      const response = await entityService.fetch({ provider, service, collection, identifiers })
-          provider, 
+      
-          service, 
+      // Merge fetched entities into state
-          collection,
+      const entities: Record<string, EntityObject> = {}
-          identifiers,
+      Object.entries(response).forEach(([identifier, entityData]) => {
-          properties
+        const key = identifierKey(provider, service, collection, identifier)
+        entities[key] = entityData
+        _entities.value[key] = entityData
       })
 
-        // Update in store
+      console.debug('[Mail Manager][Store] - Successfully fetched', Object.keys(entities).length, 'entities')
-        if (!this.messages[provider]) {
+      return entities
-          this.messages[provider] = {}
+    } catch (error: any) {
+      console.error('[Mail Manager][Store] - Failed to fetch entities:', error)
+      throw error
+    } finally {
+      transceiving.value = false
     }
-        if (!this.messages[provider][String(service)]) {
-          this.messages[provider][String(service)] = {}
-        }
-        if (!this.messages[provider][String(service)][String(collection)]) {
-          this.messages[provider][String(service)][String(collection)] = {}
   }
 
-        // Index fetched entities by identifier
+  /**
-        response.entities.forEach((entity: EntityWrapper<MessageObject>) => {
+   * Retrieve entity availability status for a given source selector
-          this.messages[provider][String(service)][String(collection)][entity.identifier] = entity
+   * 
-        })
+   * @param sources - source selector to check availability for
-        
+   * 
+   * @returns Promise with entity availability status
+   */
+  async function extant(sources: SourceSelector) {
+    transceiving.value = true
+    try {
+      const response = await entityService.extant({ sources })
+      console.debug('[Mail Manager][Store] - Successfully checked entity availability')
       return response
     } catch (error: any) {
-        this.error = error.message
+      console.error('[Mail Manager][Store] - Failed to check entity availability:', error)
       throw error
     } finally {
-        this.loading = false
+      transceiving.value = false
+    }
   }
-    },
 
-    async searchMessages(
+  /**
-      provider: string,
+   * Create a new entity with given provider, service, collection, and data
-      service: string | number,
+   * 
-      query: string,
+   * @param provider - provider identifier for the new entity
-      collections?: (string | number)[],
+   * @param service - service identifier for the new entity
-      filter?: any,
+   * @param collection - collection identifier for the new entity
-      sort?: any,
+   * @param data - entity properties for creation
-      range?: any
+   * 
-    ) {
+   * @returns Promise with created entity object
-      this.loading = true
+   */
-      this.error = null
+  async function create(provider: string, service: string | number, collection: string | number, data: any): Promise<EntityObject> {
+    transceiving.value = true
     try {
-        const response = await entityService.search({
+      const response = await entityService.create({ provider, service, collection, properties: data })
-          provider,
+      
-          service,
+      // Add created entity to state
-          query,
+      const key = identifierKey(response.provider, response.service, response.collection, response.identifier)
-          collections,
+      _entities.value[key] = response
-          filter,
+
-          sort,
+      console.debug('[Mail Manager][Store] - Successfully created entity:', key)
-          range
-        })
       return response
     } catch (error: any) {
-        this.error = error.message
+      console.error('[Mail Manager][Store] - Failed to create entity:', error)
       throw error
     } finally {
-        this.loading = false
+      transceiving.value = false
+    }
   }
-    },
 
-    async sendMessage(request: MessageSendRequest) {
+  /**
-      this.loading = true
+   * Update an existing entity with given provider, service, collection, identifier, and data
-      this.error = null
+   * 
+   * @param provider - provider identifier for the entity to update
+   * @param service - service identifier for the entity to update
+   * @param collection - collection identifier for the entity to update
+   * @param identifier - entity identifier for the entity to update
+   * @param data - entity properties for update
+   * 
+   * @returns Promise with updated entity object
+   */
+  async function update(provider: string, service: string | number, collection: string | number, identifier: string | number, data: any): Promise<EntityObject> {
+    transceiving.value = true
     try {
-        const response = await entityService.send(request)
+      const response = await entityService.update({ provider, service, collection, identifier, properties: data })
+      
+      // Update entity in state
+      const key = identifierKey(response.provider, response.service, response.collection, response.identifier)
+      _entities.value[key] = response
+
+      console.debug('[Mail Manager][Store] - Successfully updated entity:', key)
       return response
     } catch (error: any) {
-        this.error = error.message
+      console.error('[Mail Manager][Store] - Failed to update entity:', error)
       throw error
     } finally {
-        this.loading = false
+      transceiving.value = false
+    }
   }
-    },
 
-    async getDelta(sources: any) {
+  /**
-      this.loading = true
+   * Delete an entity by provider, service, collection, and identifier
-      this.error = null
+   * 
+   * @param provider - provider identifier for the entity to delete
+   * @param service - service identifier for the entity to delete
+   * @param collection - collection identifier for the entity to delete
+   * @param identifier - entity identifier for the entity to delete
+   * 
+   * @returns Promise with deletion result
+   */
+  async function remove(provider: string, service: string | number, collection: string | number, identifier: string | number): Promise<any> {
+    transceiving.value = true
+    try {
+      const response = await entityService.delete({ provider, service, collection, identifier })
+      
+      // Remove entity from state
+      const key = identifierKey(provider, service, collection, identifier)
+      delete _entities.value[key]
+
+      console.debug('[Mail Manager][Store] - Successfully deleted entity:', key)
+      return response
+    } catch (error: any) {
+      console.error('[Mail Manager][Store] - Failed to delete entity:', error)
+      throw error
+    } finally {
+      transceiving.value = false
+    }
+  }
+
+  /**
+   * Retrieve delta changes for entities
+   * 
+   * @param sources - source selector for delta check
+   * 
+   * @returns Promise with delta changes (additions, modifications, deletions)
+   * 
+   * Note: Delta returns only identifiers, not full entities.
+   * Caller should fetch full entities for additions/modifications separately.
+   */
+  async function delta(sources: SourceSelector) {
+    transceiving.value = true
     try {
-        // Sources are already in correct format: { provider: { service: { collection: signature } } }
       const response = await entityService.delta({ sources })
       
       // Process delta and update store
       Object.entries(response).forEach(([provider, providerData]) => {
+        // Skip if no changes for provider
+        if (providerData === false) return
+        
         Object.entries(providerData).forEach(([service, serviceData]) => {
+          // Skip if no changes for service
+          if (serviceData === false) return
+          
           Object.entries(serviceData).forEach(([collection, collectionData]) => {
-              // Skip if no changes (server returns false or string signature)
+            // Skip if no changes for collection
-              if (collectionData === false || typeof collectionData === 'string') {
+            if (collectionData === false) return
-                return
-              }
             
-              if (!this.messages[provider]) {
+            // Process deletions (remove from store)
-                this.messages[provider] = {}
+            if (collectionData.deletions && collectionData.deletions.length > 0) {
-              }
+              collectionData.deletions.forEach((identifier) => {
-              if (!this.messages[provider][service]) {
+                const key = identifierKey(provider, service, collection, identifier)
-                this.messages[provider][service] = {}
+                delete _entities.value[key]
-              }
-              if (!this.messages[provider][service][collection]) {
-                this.messages[provider][service][collection] = {}
-              }
-              
-              const collectionMessages = this.messages[provider][service][collection]
-              
-              // Update signature if provided
-              if (typeof collectionData === 'object' && collectionData.signature) {
-                if (!this.signatures[provider]) {
-                  this.signatures[provider] = {}
-                }
-                if (!this.signatures[provider][service]) {
-                  this.signatures[provider][service] = {}
-                }
-                this.signatures[provider][service][collection] = collectionData.signature
-                console.log(`[Store] Updated signature for ${provider}/${service}/${collection}: "${collectionData.signature}"`)
-              }
-              
-              // Process additions (from delta response format)
-              if (collectionData.additions) {
-                // Note: additions are just identifiers, need to fetch full entities separately
-                // This is handled by the sync composable
-              }
-              
-              // Process modifications
-              if (collectionData.modifications) {
-                // Note: modifications are just identifiers, need to fetch full entities separately
-              }
-              
-              // Remove deleted messages
-              if (collectionData.deletions) {
-                collectionData.deletions.forEach((id: string | number) => {
-                  delete collectionMessages[String(id)]
               })
             }
             
-              // Legacy support: Also handle created/modified/deleted format
+            // Note: additions and modifications contain only identifiers
-              if (collectionData.created) {
+            // The caller should fetch full entities using the fetch() method
-                collectionData.created.forEach((entity: EntityWrapper<MessageObject>) => {
-                  collectionMessages[entity.identifier] = entity
-                })
-              }
-              
-              if (collectionData.modified) {
-                collectionData.modified.forEach((entity: EntityWrapper<MessageObject>) => {
-                  collectionMessages[entity.identifier] = entity
-                })
-              }
-              
-              if (collectionData.deleted) {
-                collectionData.deleted.forEach((id: string | number) => {
-                  delete collectionMessages[String(id)]
-                })
-              }
           })
         })
       })
 
+      console.debug('[Mail Manager][Store] - Successfully processed delta changes')
       return response
     } catch (error: any) {
-        this.error = error.message
+      console.error('[Mail Manager][Store] - Failed to process delta:', error)
       throw error
     } finally {
-        this.loading = false
+      transceiving.value = false
+    }
   }
-    },
-  },
 
-  getters: {
+  /**
-    messageList: (state) => {
+   * Send/transmit an entity
-      const list: EntityWrapper<MessageObject>[] = []
+   * 
-      Object.values(state.messages).forEach(providerMessages => {
+   * @param request - transmit request parameters
-        Object.values(providerMessages).forEach(serviceMessages => {
+   * 
-          Object.values(serviceMessages).forEach(collectionMessages => {
+   * @returns Promise with transmission result
-            Object.values(collectionMessages).forEach(message => {
+   */
-              list.push(message)
+  async function transmit(request: EntityTransmitRequest): Promise<EntityTransmitResponse> {
-            })
+    transceiving.value = true
-          })
+    try {
-        })
+      const response = await entityService.transmit(request)
-      })
+      console.debug('[Mail Manager][Store] - Successfully transmitted entity')
-      return list
+      return response
-    },
+    } catch (error: any) {
+      console.error('[Mail Manager][Store] - Failed to transmit entity:', error)
+      throw error
+    } finally {
+      transceiving.value = false
+    }
+  }
 
-    messageCount: (state) => {
+  // Return public API
-      let count = 0
+  return {
-      Object.values(state.messages).forEach(providerMessages => {
+    // State (readonly)
-        Object.values(providerMessages).forEach(serviceMessages => {
+    transceiving: readonly(transceiving),
-          Object.values(serviceMessages).forEach(collectionMessages => {
+    // Getters
-            count += Object.keys(collectionMessages).length
+    count,
-          })
+    has,
-        })
+    entities,
-      })
+    entitiesForCollection,
-      return count
+    // Actions
-    },
+    entity,
-
+    list,
-    hasMessages: (state) => {
+    fetch,
-      return Object.values(state.messages).some(providerMessages =>
+    extant,
-        Object.values(providerMessages).some(serviceMessages =>
+    create,
-          Object.values(serviceMessages).some(collectionMessages =>
+    update,
-            Object.keys(collectionMessages).length > 0
+    delete: remove,
-          )
+    delta,
-        )
+    transmit,
-      )
+  }
-    },
-  },
 })

src/stores/providersStore.ts

@@ -12,59 +12,60 @@ export const useProvidersStore = defineStore('mailProvidersStore', () => {
   // State
   const _providers = ref<Record<string, ProviderObject>>({})
   const transceiving = ref(false)
-  const error = ref<string | null>(null)
 
-  // Getters
+  /**
+   * Get count of providers in store
+   */
   const count = computed(() => Object.keys(_providers.value).length)
+
+  /**
+   * Check if any providers are present in store
+   */
   const has = computed(() => count.value > 0)
 
   /**
-   * Get providers as an array
+   * Get all providers present in store
-   * @returns Array of provider objects
    */
   const providers = computed(() => Object.values(_providers.value))
 
   /**
-   * Get a specific provider by identifier from cache
+   * Get a specific provider from store, with optional retrieval
+   * 
    * @param identifier - Provider identifier
+   * @param retrieve - Retrieve behavior: true = fetch if missing or refresh, false = cache only
+   * 
    * @returns Provider object or null
    */
-  function provider(identifier: string): ProviderObject | null {
+  function provider(identifier: string, retrieve: boolean = false): ProviderObject | null {
+    if (retrieve === true && !_providers.value[identifier]) {
+      console.debug(`[Mail Manager][Store] - Force fetching provider "${identifier}"`)
+      fetch(identifier)
+    }
+    
     return _providers.value[identifier] || null
   }
 
   // Actions
+
   /**
-   * Retrieve all or specific providers
+   * Retrieve all or specific providers, optionally filtered by source selector
+   * 
+   * @param request - list request parameters
+   * 
+   * @returns Promise with provider object list keyed by provider identifier
    */
   async function list(sources?: SourceSelector): Promise<Record<string, ProviderObject>> {
     transceiving.value = true
-    error.value = null
     try {
-      const response = await providerService.list({ sources })
+      const providers = await providerService.list({ sources })
 
-      console.debug('[Mail Manager](Store) - Successfully retrieved', Object.keys(response).length, 'providers')
+      // Merge retrieved providers into state
+      _providers.value = { ..._providers.value, ...providers }
 
-      _providers.value = response
+      console.debug('[Mail Manager][Store] - Successfully retrieved', Object.keys(providers).length, 'providers')
-      return response
+      return providers
-    } catch (err: any) {
-      console.error('[Mail Manager](Store) - Failed to retrieve providers:', err)
-      error.value = err.message
-      throw err
-    } finally {
-      transceiving.value = false
-    }
-  }
-
-  /**
-   * Fetch a specific provider
-   */
-  async function fetch(identifier: string): Promise<ProviderObject> {
-    transceiving.value = true
-    try {
-      return await providerService.fetch({ identifier })
     } catch (error: any) {
-      console.error('[Mail Manager](Store) - Failed to fetch provider:', error)
+      console.error('[Mail Manager][Store] - Failed to retrieve providers:', error)
       throw error
     } finally {
       transceiving.value = false
@@ -72,19 +73,53 @@ export const useProvidersStore = defineStore('mailProvidersStore', () => {
   }
 
   /**
-   * Check which providers exist/are available
+   * Retrieve a specific provider by identifier
+   * 
+   * @param identifier - provider identifier
+   * 
+   * @returns Promise with provider object
+   */
+  async function fetch(identifier: string): Promise<ProviderObject> {
+    transceiving.value = true
+    try {
+      const provider = await providerService.fetch({ identifier })
+
+      // Merge fetched provider into state
+      _providers.value[provider.identifier] = provider
+
+      console.debug('[Mail Manager][Store] - Successfully fetched provider:', provider.identifier)
+      return provider
+    } catch (error: any) {
+      console.error('[Mail Manager][Store] - Failed to fetch provider:', error)
+      throw error
+    } finally {
+      transceiving.value = false
+    }
+  }
+
+  /**
+   * Retrieve provider availability status for a given source selector
+   * 
+   * @param sources - source selector to check availability for
+   * 
+   * @returns Promise with provider availability status
    */
   async function extant(sources: SourceSelector) {
     transceiving.value = true
-    error.value = null
     try {
       const response = await providerService.extant({ sources })
-      console.debug('[Mail Manager](Store) - Successfully checked', sources ? Object.keys(sources).length : 0, 'providers')
+
+      Object.entries(response).forEach(([providerId, providerStatus]) => {
+        if (providerStatus === false) {
+          delete _providers.value[providerId]
+        }
+      })
+
+      console.debug('[Mail Manager][Store] - Successfully checked', sources ? Object.keys(sources).length : 0, 'providers')
       return response
-    } catch (err: any) {
+    } catch (error: any) {
-      console.error('[Mail Manager](Store) - Failed to check providers:', err)
+      console.error('[Mail Manager][Store] - Failed to check providers:', error)
-      error.value = err.message
+      throw error
-      throw err
     } finally {
       transceiving.value = false
     }
@@ -94,7 +129,6 @@ export const useProvidersStore = defineStore('mailProvidersStore', () => {
   return {
     // State
     transceiving: readonly(transceiving),
-    error: readonly(error),
     // computed
     count,
     has,

src/stores/servicesStore.ts

@@ -10,27 +10,31 @@ import type {
   ServiceLocation,
   SourceSelector,
   ServiceIdentity,
+  ServiceInterface,
 } from '../types'
 
 export const useServicesStore = defineStore('mailServicesStore', () => {
   // State
   const _services = ref<Record<string, ServiceObject>>({})
   const transceiving = ref(false)
-  const lastTestResult = ref<any>(null)
 
-  // Getters
+  /**
+   * Get count of services in store
+   */
   const count = computed(() => Object.keys(_services.value).length)
+
+  /**
+   * Check if any services are present in store
+   */
   const has = computed(() => count.value > 0)
 
   /**
-   * Get services as an array
+   * Get all services present in store
-   * @returns Array of service objects
    */
   const services = computed(() => Object.values(_services.value))
 
   /**
-   * Get services grouped by provider
+   * Get all services present in store grouped by provider
-   * @returns Services grouped by provider ID
    */
   const servicesByProvider = computed(() => {
     const groups: Record<string, ServiceObject[]> = {}
@@ -45,9 +49,60 @@ export const useServicesStore = defineStore('mailServicesStore', () => {
     return groups
   })
 
-  // Actions
   /**
-   * Retrieve for all or specific services
+   * Get a specific service from store, with optional retrieval
+   * 
+   * @param provider - provider identifier
+   * @param identifier - service identifier
+   * @param retrieve - Retrieve behavior: true = fetch if missing or refresh, false = cache only
+   * 
+   * @returns Service object or null
+   */
+  function service(provider: string, identifier: string | number, retrieve: boolean = false): ServiceObject | null {
+    const key = identifierKey(provider, identifier)
+    if (retrieve === true && !_services.value[key]) {
+      console.debug(`[Mail Manager][Store] - Force fetching service "${key}"`)
+      fetch(provider, identifier)
+    }
+    
+    return _services.value[key] || null
+  }
+
+  /**
+   * Get a service from store matching a given address, with optional retrieval
+   * 
+   * @param address - email address to match against primary and secondary addresses
+   * @param retrieve - Retrieve behavior: true = fetch if missing, false = cache only
+   * 
+   * @returns Service object or null
+   */
+  function serviceForAddress(address: string, retrieve: boolean = false): ServiceObject | null {
+    const service = Object.values(_services.value).find(s => s.primaryAddress === address || s.secondaryAddresses?.includes(address))
+    
+    if (retrieve === true && !service) {
+      console.debug(`[Mail Manager][Store] - No service found for address "${address}", discovery may be needed`)
+      
+      // TODO: Implement retrieving service by address
+    }
+    
+    return service || null
+  }
+
+  /**
+   * Unique key for a service
+   */
+  function identifierKey(provider: string, identifier: string | number | null): string {
+    return `${provider}:${identifier ?? ''}`
+  }
+
+  // Actions
+  
+  /**
+   * Retrieve all or specific services, optionally filtered by source selector
+   * 
+   * @param sources - optional source selector
+   * 
+   * @returns Promise with service object list keyed by provider and service identifier
    */
   async function list(sources?: SourceSelector): Promise<Record<string, ServiceObject>> {
     transceiving.value = true
@@ -55,20 +110,21 @@ export const useServicesStore = defineStore('mailServicesStore', () => {
       const response = await serviceService.list({ sources })
 
       // Flatten nested structure: provider-id: { service-id: object } -> "provider-id:service-id": object
-      const flattened: Record<string, ServiceObject> = {}
+      const services: Record<string, ServiceObject> = {}
       Object.entries(response).forEach(([_providerId, providerServices]) => {
         Object.entries(providerServices).forEach(([_serviceId, serviceObj]) => {
-          const key = `${serviceObj.provider}:${serviceObj.identifier}`
+          const key = identifierKey(serviceObj.provider, serviceObj.identifier)
-          flattened[key] = serviceObj
+          services[key] = serviceObj
         })
       })
 
-      console.debug('[Mail Manager](Store) - Successfully retrieved', Object.keys(flattened).length, 'services')
+      // Merge retrieved services into state
+      _services.value = { ..._services.value, ...services }
 
-      _services.value = flattened
+      console.debug('[Mail Manager][Store] - Successfully retrieved', Object.keys(services).length, 'services')
-      return flattened
+      return services
     } catch (error: any) {
-      console.error('[Mail Manager](Store) - Failed to retrieve services:', error)
+      console.error('[Mail Manager][Store] - Failed to retrieve services:', error)
       throw error
     } finally {
       transceiving.value = false
@@ -76,14 +132,26 @@ export const useServicesStore = defineStore('mailServicesStore', () => {
   }
   
   /**
-   * Fetch a specific service
+   * Retrieve a specific service by provider and identifier
+   * 
+   * @param provider - provider identifier
+   * @param identifier - service identifier
+   * 
+   * @returns Promise with service object
    */
   async function fetch(provider: string, identifier: string | number): Promise<ServiceObject> {
     transceiving.value = true
     try {
-      return await serviceService.fetch({ provider, identifier })
+      const service = await serviceService.fetch({ provider, identifier })
+      
+      // Merge fetched service into state
+      const key = identifierKey(service.provider, service.identifier)
+      _services.value[key] = service
+
+      console.debug('[Mail Manager][Store] - Successfully fetched service:', key)
+      return service
     } catch (error: any) {
-      console.error('[Mail Manager](Store) - Failed to fetch service:', error)
+      console.error('[Mail Manager][Store] - Failed to fetch service:', error)
       throw error
     } finally {
       transceiving.value = false
@@ -91,9 +159,117 @@ export const useServicesStore = defineStore('mailServicesStore', () => {
   }
 
   /**
-   * Discover service configuration
+   * Retrieve service availability status for a given source selector
    * 
-   * @returns Array of discovered services sorted by provider
+   * @param sources - source selector to check availability for
+   * 
+   * @returns Promise with service availability status
+   */
+  async function extant(sources: SourceSelector) {
+    transceiving.value = true
+    try {
+      const response = await serviceService.extant({ sources })
+      
+      console.debug('[Mail Manager][Store] - Successfully checked', sources ? Object.keys(sources).length : 0, 'services')
+      return response
+    } catch (error: any) {
+      console.error('[Mail Manager][Store] - Failed to check services:', error)
+      throw error
+    } finally {
+      transceiving.value = false
+    }
+  }
+
+  /**
+   * Create a new service with given provider and data
+   * 
+   * @param provider - provider identifier for the new service
+   * @param data - partial service data for creation
+   * 
+   * @returns Promise with created service object
+   */
+  async function create(provider: string, data: Partial<ServiceInterface>): Promise<ServiceObject> {
+    transceiving.value = true
+    try {
+      const service = await serviceService.create({ provider, data })
+      
+      // Merge created service into state
+      const key = identifierKey(service.provider, service.identifier)
+      _services.value[key] = service
+      
+      console.debug('[Mail Manager][Store] - Successfully created service:', key)
+      return service
+    } catch (error: any) {
+      console.error('[Mail Manager][Store] - Failed to create service:', error)
+      throw error
+    } finally {
+      transceiving.value = false
+    }
+  }
+
+  /**
+   * Update an existing service with given provider, identifier, and data
+   * 
+   * @param provider - provider identifier for the service to update
+   * @param identifier - service identifier for the service to update
+   * @param data - partial service data for update
+   * 
+   * @returns Promise with updated service object
+   */
+  async function update(provider: string, identifier: string | number, data: Partial<ServiceInterface>): Promise<ServiceObject> {
+    transceiving.value = true
+    try {
+      const service = await serviceService.update({ provider, identifier, data })
+      
+      // Merge updated service into state
+      const key = identifierKey(service.provider, service.identifier)
+      _services.value[key] = service
+      
+      console.debug('[Mail Manager][Store] - Successfully updated service:', key)
+      return service
+    } catch (error: any) {
+      console.error('[Mail Manager][Store] - Failed to update service:', error)
+      throw error
+    } finally {
+      transceiving.value = false
+    }
+  }
+
+  /**
+   * Delete a service by provider and identifier
+   * 
+   * @param provider - provider identifier for the service to delete
+   * @param identifier - service identifier for the service to delete
+   * 
+   * @returns Promise with deletion result
+   */
+  async function remove(provider: string, identifier: string | number): Promise<any> {
+    transceiving.value = true
+    try {
+      await serviceService.delete({ provider, identifier })
+      
+      // Remove deleted service from state
+      const key = identifierKey(provider, identifier)
+      delete _services.value[key]
+
+      console.debug('[Mail Manager][Store] - Successfully deleted service:', key)
+    } catch (error: any) {
+      console.error('[Mail Manager][Store] - Failed to delete service:', error)
+      throw error
+    } finally {
+      transceiving.value = false
+    }
+  }
+  
+  /**
+   * Discover services based on provided parameters
+   * 
+   * @param identity - optional service identity for discovery
+   * @param secret - optional secret for discovery
+   * @param location - optional location for discovery
+   * @param provider - optional provider identifier for discovery
+   * 
+   * @returns Promise with list of discovered service objects
    */
   async function discover(
     identity: string,
@@ -105,16 +281,27 @@ export const useServicesStore = defineStore('mailServicesStore', () => {
     
     try {
       const services = await serviceService.discover({identity, secret, location, provider})
-      console.debug('[Mail Manager](Store) - Successfully discovered', services.length, 'services')
+
+      console.debug('[Mail Manager][Store] - Successfully discovered', services.length, 'services')
       return services
     } catch (error: any) {
-      console.error('[Mail Manager](Store) - Failed to discover service:', error)
+      console.error('[Mail Manager][Store] - Failed to discover service:', error)
       throw error
     } finally {
       transceiving.value = false
     }
   }
 
+  /**
+   * Test service connectivity and configuration
+   * 
+   * @param provider - provider identifier for the service to test
+   * @param identifier - optional service identifier for testing existing service
+   * @param location - optional service location for testing new configuration
+   * @param identity - optional service identity for testing new configuration  
+   * 
+   * @return Promise with test results
+   */
   async function test(
     provider: string,
     identifier?: string | number | null,
@@ -124,62 +311,11 @@ export const useServicesStore = defineStore('mailServicesStore', () => {
     transceiving.value = true
     try {
       const response = await serviceService.test({ provider, identifier, location, identity })
-      lastTestResult.value = response
+      
+      console.debug('[Mail Manager][Store] - Successfully tested service:', provider, identifier || location)
       return response
     } catch (error: any) {
-      console.error('[Mail Manager](Store) - Failed to test service:', error)
+      console.error('[Mail Manager][Store] - Failed to test service:', error)
-      throw error
-    } finally {
-      transceiving.value = false
-    }
-  }
-
-  async function create(provider: string, data: any) {
-    transceiving.value = true
-    try {
-      const serviceObj = await serviceService.create({ provider, data })
-      
-      // Add to store with composite key
-      const key = `${serviceObj.provider}:${serviceObj.identifier}`
-      _services.value[key] = serviceObj
-      
-      return serviceObj
-    } catch (error: any) {
-      console.error('[Mail Manager](Store) - Failed to create service:', error)
-      throw error
-    } finally {
-      transceiving.value = false
-    }
-  }
-
-  async function update(provider: string, identifier: string | number, data: any) {
-    transceiving.value = true
-    try {
-      const serviceObj = await serviceService.update({ provider, identifier, data })
-      
-      // Update in store with composite key
-      const key = `${serviceObj.provider}:${serviceObj.identifier}`
-      _services.value[key] = serviceObj
-      
-      return serviceObj
-    } catch (error: any) {
-      console.error('[Mail Manager](Store) - Failed to update service:', error)
-      throw error
-    } finally {
-      transceiving.value = false
-    }
-  }
-
-  async function remove(provider: string, identifier: string | number) {
-    transceiving.value = true
-    try {
-      await serviceService.delete({ provider, identifier })
-      
-      // Remove from store using composite key
-      const key = `${provider}:${identifier}`
-      delete _services.value[key]
-    } catch (error: any) {
-      console.error('[Mail Manager](Store) - Failed to delete service:', error)
       throw error
     } finally {
       transceiving.value = false
@@ -190,7 +326,6 @@ export const useServicesStore = defineStore('mailServicesStore', () => {
   return {
     // State (readonly)
     transceiving: readonly(transceiving),
-    lastTestResult: readonly(lastTestResult),
     // Getters
     count,
     has,
@@ -198,12 +333,15 @@ export const useServicesStore = defineStore('mailServicesStore', () => {
     servicesByProvider,
     
     // Actions
+    service,
+    serviceForAddress,
     list,
     fetch,
-    discover,
+    extant,
-    test,
     create,
     update,
     delete: remove,
+    discover,
+    test,
   }
 })

src/types/collection.ts

@@ -1,10 +1,10 @@
 /**
- * Collection-related type definitions for Mail Manager
+ * Collection type definitions
  */
-import type { SourceSelector } from './common';
+import type { ListFilter, ListSort, SourceSelector } from './common';
 
 /**
- * Collection interface (mailbox/folder)
+ * Collection information
  */
 export interface CollectionInterface {
   provider: string;
@@ -22,41 +22,29 @@ export interface CollectionBaseProperties {
   version: number;
 }
 
-/**
- * Immutable collection properties (computed by server)
- */
 export interface CollectionImmutableProperties extends CollectionBaseProperties {
   total?: number;
   unread?: number;
   role?: string | null;
 }
 
-/**
- * Mutable collection properties (can be modified by user)
- */
 export interface CollectionMutableProperties extends CollectionBaseProperties {
   label: string;
   rank?: number;
   subscribed?: boolean;
 }
 
-/**
- * Full collection properties (what server returns)
- */
 export interface CollectionPropertiesInterface extends CollectionMutableProperties, CollectionImmutableProperties {}
 
 /**
- * Collection list request
+ * Collection list
  */
 export interface CollectionListRequest {
   sources?: SourceSelector;
-  filter?: any;
+  filter?: ListFilter;
-  sort?: any;
+  sort?: ListSort;
 }
 
-/**
- * Collection list response
- */
 export interface CollectionListResponse {
   [providerId: string]: {
     [serviceId: string]: {
@@ -66,15 +54,23 @@ export interface CollectionListResponse {
 }
 
 /**
- * Collection extant request
+ * Collection fetch
+ */
+export interface CollectionFetchRequest {
+  provider: string;
+  service: string | number;
+  collection: string | number;
+}
+
+export interface CollectionFetchResponse extends CollectionInterface {}
+
+/**
+ * Collection extant
  */
 export interface CollectionExtantRequest {
   sources: SourceSelector;
 }
 
-/**
- * Collection extant response
- */
 export interface CollectionExtantResponse {
   [providerId: string]: {
     [serviceId: string]: {
@@ -84,21 +80,7 @@ export interface CollectionExtantResponse {
 }
 
 /**
- * Collection fetch request
+ * Collection create
- */
-export interface CollectionFetchRequest {
-  provider: string;
-  service: string | number;
-  collection: string | number;
-}
-
-/**
- * Collection fetch response
- */
-export interface CollectionFetchResponse extends CollectionInterface {}
-
-/**
- * Collection create request
  */
 export interface CollectionCreateRequest {
   provider: string;
@@ -107,42 +89,33 @@ export interface CollectionCreateRequest {
   properties: CollectionMutableProperties;
 }
 
-/**
- * Collection create response
- */
 export interface CollectionCreateResponse extends CollectionInterface {}
 
 /**
- * Collection modify request
+ * Collection modify
  */
-export interface CollectionModifyRequest {
+export interface CollectionUpdateRequest {
   provider: string;
   service: string | number;
   identifier: string | number;
   properties: CollectionMutableProperties;
 }
 
-/**
+export interface CollectionUpdateResponse extends CollectionInterface {}
- * Collection modify response
- */
-export interface CollectionModifyResponse extends CollectionInterface {}
 
 /**
- * Collection destroy request
+ * Collection delete
  */
-export interface CollectionDestroyRequest {
+export interface CollectionDeleteRequest {
   provider: string;
   service: string | number;
   identifier: string | number;
   options?: {
-    force?: boolean; // Whether to force destroy even if collection is not empty
+    force?: boolean; // Whether to force delete even if collection is not empty
-    recursive?: boolean; // Whether to destroy child collections/items as well
+    recursive?: boolean; // Whether to delete child collections/items as well
   };
 }
 
-/**
+export interface CollectionDeleteResponse {
- * Collection destroy response
- */
-export interface CollectionDestroyResponse {
   success: boolean;
 }

src/types/common.ts

@@ -1,5 +1,5 @@
 /**
- * Common types shared across Mail Manager services
+ * Common types shared across provider, service, collection, and entity request and responses.
  */
 
 /**
@@ -44,8 +44,19 @@ export interface ApiErrorResponse {
 export type ApiResponse<T = any> = ApiSuccessResponse<T> | ApiErrorResponse;
 
 /**
- * Source selector structure for hierarchical resource selection
+ * Selector for targeting specific providers, services, collections, or entities in list or extant operations.
- * Structure: Provider -> Service -> Collection -> Message
+ * 
+ * Example usage:
+ * {
+ *   "provider1": true, // Select all services/collections/entities under provider1
+ *   "provider2": {
+ *     "serviceA": true, // Select all collections/entities under serviceA of provider2
+ *     "serviceB": {
+ *       "collectionX": true, // Select all entities under collectionX of serviceB of provider2
+ *       "collectionY": [1, 2, 3] // Select entities with identifiers 1, 2, and 3 under collectionY of serviceB of provider2
+ *     }
+ *   }
+ * }
  */
 export type SourceSelector = {
   [provider: string]: boolean | ServiceSelector;
@@ -56,38 +67,90 @@ export type ServiceSelector = {
 };
 
 export type CollectionSelector = {
-  [collection: string | number]: boolean | MessageSelector;
+  [collection: string | number]: boolean | EntitySelector;
 };
 
-export type MessageSelector = (string | number)[];
+export type EntitySelector = (string | number)[];
+
 
 /**
- * Filter condition for building complex queries
+ * Filter comparison for list operations
  */
-export interface FilterCondition {
+export const ListFilterComparisonOperator = {
-  field: string;
+  EQ: 1,      // Equal
-  operator: string;
+  NEQ: 2,     // Not Equal
-  value: any;
+  GT: 4,      // Greater Than
-}
+  LT: 8,      // Less Than
+  GTE: 16,    // Greater Than or Equal
+  LTE: 32,    // Less Than or Equal
+  IN: 64,     // In Array
+  NIN: 128,   // Not In Array
+  LIKE: 256,  // Like
+  NLIKE: 512, // Not Like
+} as const;
+
+export type ListFilterComparisonOperator = typeof ListFilterComparisonOperator[keyof typeof ListFilterComparisonOperator];
 
 /**
- * Filter criteria for list operations
+ * Filter conjunction for list operations
+ */
+export const ListFilterConjunctionOperator = {
+  NONE: '',
+  AND: 'AND',
+  OR: 'OR',
+} as const;
+
+export type ListFilterConjunctionOperator = typeof ListFilterConjunctionOperator[keyof typeof ListFilterConjunctionOperator];
+
+/**
+ * Filter condition for list operations
+ * 
+ * Tuple format: [value, comparator?, conjunction?]
+ */
+export type ListFilterCondition = [
+  string | number | boolean | string[] | number[],
+  ListFilterComparisonOperator?,
+  ListFilterConjunctionOperator?
+];
+
+/**
+ * Filter for list operations
+ * 
+ * Values can be:
+ * - Simple primitives (string | number | boolean) for default equality comparison
+ * - ListFilterCondition tuple for explicit comparator/conjunction
+ * 
+ * Examples:
+ * - Simple usage: { name: "John" }
+ * - With comparator: { age: [25, ListFilterComparisonOperator.GT] }
+ * - With conjunction: { age: [25, ListFilterComparisonOperator.GT, ListFilterConjunctionOperator.AND] }
+ * - With array value for IN operator: { status: [["active", "pending"], ListFilterComparisonOperator.IN] }
  */
 export interface ListFilter {
-  [key: string]: any;
+  [attribute: string]: string | number | boolean | ListFilterCondition;
 }
 
 /**
- * Sort options for list operations
+ * Sort for list operations
+ * 
+ * Values can be:
+ * - true for ascending 
+ * - false for descending
  */
 export interface ListSort {
-  [key: string]: boolean;
+  [attribute: string]: boolean;
 }
 
 /**
- * Range specification for pagination/limiting results
+ * Range for list operations
+ * 
+ * Values can be:
+ * - relative based on item identifier 
+ * - absolute based on item count 
  */
 export interface ListRange {
-  start: number;
+  type: 'tally';
-  limit: number;
+  anchor: 'relative' | 'absolute';
+  position: string | number;
+  tally: number;
 }

src/types/entity.ts

@@ -1,11 +1,11 @@
 /**
- * Entity type definitions for mail
+ * Entity type definitions
  */
-import type { SourceSelector } from './common';
+import type { SourceSelector, ListFilter, ListSort, ListRange } from './common';
 import type { MessageInterface } from './message';
 
 /**
- * Entity wrapper with metadata
+ * Entity definition
  */
 export interface EntityInterface<T = MessageInterface> {
   provider: string;
@@ -19,18 +19,15 @@ export interface EntityInterface<T = MessageInterface> {
 }
 
 /**
- * Entity list request
+ * Entity list
  */
 export interface EntityListRequest {
   sources?: SourceSelector;
-  filter?: any;
+  filter?: ListFilter;
-  sort?: any;
+  sort?: ListSort;
-  range?: { start: number; limit: number };
+  range?: ListRange;
 }
 
-/**
- * Entity list response
- */
 export interface EntityListResponse {
   [providerId: string]: {
     [serviceId: string]: {
@@ -42,68 +39,38 @@ export interface EntityListResponse {
 }
 
 /**
- * Entity delta request
+ * Entity fetch
- */
-export interface EntityDeltaRequest {
-  sources: SourceSelector;
-}
-
-/**
- * Entity delta response
- */
-export interface EntityDeltaResponse {
-  [providerId: string]: {
-    [serviceId: string]: {
-      [collectionId: string]: {
-        signature: string;
-        created?: EntityInterface<MessageInterface>[];
-        modified?: EntityInterface<MessageInterface>[];
-        deleted?: string[];
-      };
-    };
-  };
-}
-
-/**
- * Entity extant request
- */
-export interface EntityExtantRequest {
-  sources: SourceSelector;
-}
-
-/**
- * Entity extant response
- */
-export interface EntityExtantResponse {
-  [providerId: string]: {
-    [serviceId: string]: {
-      [collectionId: string]: {
-        [messageId: string]: boolean;
-      };
-    };
-  };
-}
-
-/**
- * Entity fetch request
  */
 export interface EntityFetchRequest {
   provider: string;
   service: string | number;
   collection: string | number;
   identifiers: (string | number)[];
-  properties?: string[];
 }
 
-/**
- * Entity fetch response
- */
 export interface EntityFetchResponse {
-  entities: EntityInterface<MessageInterface>[];
+  [identifier: string]: EntityInterface<MessageInterface>;
 }
 
 /**
- * Entity create request
+ * Entity extant
+ */
+export interface EntityExtantRequest {
+  sources: SourceSelector;
+}
+
+export interface EntityExtantResponse {
+  [providerId: string]: {
+    [serviceId: string]: {
+      [collectionId: string]: {
+        [identifier: string]: boolean;
+      };
+    };
+  };
+}
+
+/**
+ * Entity create
  */
 export interface EntityCreateRequest<T = MessageInterface> {
   provider: string;
@@ -112,17 +79,12 @@ export interface EntityCreateRequest<T = MessageInterface> {
   properties: T;
 }
 
-/**
+export interface EntityCreateResponse<T = MessageInterface> extends EntityInterface<T> {}
- * Entity create response
- */
-export interface EntityCreateResponse<T = MessageInterface> {
-  entity: EntityInterface<T>;
-}
 
 /**
- * Entity modify request
+ * Entity update
  */
-export interface EntityModifyRequest<T = MessageInterface> {
+export interface EntityUpdateRequest<T = MessageInterface> {
   provider: string;
   service: string | number;
   collection: string | number;
@@ -130,35 +92,46 @@ export interface EntityModifyRequest<T = MessageInterface> {
   properties: T;
 }
 
-/**
+export interface EntityUpdateResponse<T = MessageInterface> extends EntityInterface<T> {}
- * Entity modify response
- */
-export interface EntityModifyResponse<T = MessageInterface> {
-  success: boolean;
-  entity?: EntityInterface<T>;
-}
 
 /**
- * Entity destroy request
+ * Entity delete
  */
-export interface EntityDestroyRequest {
+export interface EntityDeleteRequest {
   provider: string;
   service: string | number;
   collection: string | number;
   identifier: string | number;
 }
 
-/**
+export interface EntityDeleteResponse {
- * Entity destroy response
- */
-export interface EntityDestroyResponse {
   success: boolean;
 }
 
 /**
- * Entity send request
+ * Entity delta
  */
-export interface EntitySendRequest {
+export interface EntityDeltaRequest {
+  sources: SourceSelector;
+}
+
+export interface EntityDeltaResponse {
+  [providerId: string]: false | {
+    [serviceId: string]: false | {
+      [collectionId: string]: false | {
+        signature: string;
+        additions: (string | number)[];
+        modifications: (string | number)[];
+        deletions: (string | number)[];
+      };
+    };
+  };
+}
+
+/**
+ * Entity transmit
+ */
+export interface EntityTransmitRequest {
   message: {
     from?: string;
     to: string[];
@@ -181,10 +154,7 @@ export interface EntitySendRequest {
   };
 }
 
-/**
+export interface EntityTransmitResponse {
- * Entity send response
- */
-export interface EntitySendResponse {
   id: string;
   status: 'queued' | 'sent';
 }

src/types/provider.ts

@@ -29,41 +29,32 @@ export interface ProviderInterface {
 }
 
 /**
- * Provider list request
+ * Provider list
  */
 export interface ProviderListRequest {
   sources?: SourceSelector;
 }
 
-/**
- * Provider list response
- */
 export interface ProviderListResponse {
   [identifier: string]: ProviderInterface;
 }
 
 /**
- * Provider fetch request
+ * Provider fetch 
  */
 export interface ProviderFetchRequest {
   identifier: string;
 }
 
-/**
- * Provider fetch response
- */
 export interface ProviderFetchResponse extends ProviderInterface {}
 
 /**
- * Provider extant request
+ * Provider extant 
  */
 export interface ProviderExtantRequest {
   sources: SourceSelector;
 }
 
-/**
- * Provider extant response
- */
 export interface ProviderExtantResponse {
   [identifier: string]: boolean;
 }

src/types/service.ts

@@ -1,7 +1,7 @@
 /**
- * Service-related type definitions
+ * Service type definitions
  */
-import type { SourceSelector } from './common';
+import type { SourceSelector, ListFilterComparisonOperator } from './common';
 
 /**
  * Service capabilities
@@ -9,29 +9,29 @@ import type { SourceSelector } from './common';
 export interface ServiceCapabilitiesInterface {
   // Collection capabilities
   CollectionList?: boolean;
-  CollectionListFilter?: boolean | { [field: string]: string };
+  CollectionListFilter?: ServiceListFilterCollection;
-  CollectionListSort?: boolean | string[];
+  CollectionListSort?: ServiceListSortCollection;
   CollectionExtant?: boolean;
   CollectionFetch?: boolean;
   CollectionCreate?: boolean;
-  CollectionModify?: boolean;
+  CollectionUpdate?: boolean;
   CollectionDelete?: boolean;
   // Message capabilities
   EntityList?: boolean;
-  EntityListFilter?: boolean | { [field: string]: string };
+  EntityListFilter?: ServiceListFilterEntity;
-  EntityListSort?: boolean | string[];
+  EntityListSort?: ServiceListSortEntity;
-  EntityListRange?: boolean | { tally?: string[] };
+  EntityListRange?: ServiceListRange;
   EntityDelta?: boolean;
   EntityExtant?: boolean;
   EntityFetch?: boolean;
   EntityCreate?: boolean;
-  EntityModify?: boolean;
+  EntityUpdate?: boolean;
   EntityDelete?: boolean;
   EntityMove?: boolean;
   EntityCopy?: boolean;
   // Send capability
   EntityTransmit?: boolean;
-  [key: string]: boolean | object | string[] | undefined;
+  [key: string]: boolean | object | string | string[] | undefined;
 }
 
 /**
@@ -52,15 +52,12 @@ export interface ServiceInterface {
 }
 
 /**
- * Service list request
+ * Service list
  */
 export interface ServiceListRequest {
   sources?: SourceSelector;
 }
 
-/**
- * Service list response
- */
 export interface ServiceListResponse {
   [provider: string]: {
     [identifier: string]: ServiceInterface;
@@ -68,15 +65,22 @@ export interface ServiceListResponse {
 }
 
 /**
- * Service extant request
+ * Service fetch
+ */
+export interface ServiceFetchRequest {
+  provider: string;
+  identifier: string | number;
+}
+
+export interface ServiceFetchResponse extends ServiceInterface {}
+
+/**
+ * Service extant
  */
 export interface ServiceExtantRequest {
   sources: SourceSelector;
 }
 
-/**
- * Service extant response
- */
 export interface ServiceExtantResponse {
   [provider: string]: {
     [identifier: string]: boolean;
@@ -84,45 +88,17 @@ export interface ServiceExtantResponse {
 }
 
 /**
- * Service fetch request
+ * Service create
- */
-export interface ServiceFetchRequest {
-  provider: string;
-  identifier: string | number;
-}
-
-/**
- * Service fetch response
- */
-export interface ServiceFetchResponse extends ServiceInterface {}
-
-/**
- * Service find by address request
- */
-export interface ServiceFindByAddressRequest {
-  address: string;
-}
-
-/**
- * Service find by address response
- */
-export interface ServiceFindByAddressResponse extends ServiceInterface {}
-
-/**
- * Service create request
  */
 export interface ServiceCreateRequest {
   provider: string;
   data: Partial<ServiceInterface>;
 }
 
-/**
- * Service create response
- */
 export interface ServiceCreateResponse extends ServiceInterface {}
 
 /**
- * Service update request
+ * Service update
  */
 export interface ServiceUpdateRequest {
   provider: string;
@@ -130,29 +106,20 @@ export interface ServiceUpdateRequest {
   data: Partial<ServiceInterface>;
 }
 
-/**
- * Service update response
- */
 export interface ServiceUpdateResponse extends ServiceInterface {}
 
 /**
- * Service delete request
+ * Service delete
  */
 export interface ServiceDeleteRequest {
   provider: string;
   identifier: string | number;
 }
 
-/**
- * Service delete response
- */
 export interface ServiceDeleteResponse {}
 
-// ==================== Discovery Types ====================
-
 /**
- * Service discovery request - NEW VERSION
+ * Service discovery
- * Supports identity-based discovery with optional hints
  */
 export interface ServiceDiscoverRequest {
   identity: string;      // Email address or domain
@@ -161,42 +128,36 @@ export interface ServiceDiscoverRequest {
   secret?: string;       // Optional: password/token for credential validation
 }
 
-/**
- * Service discovery response - NEW VERSION
- * Provider-keyed map of discovered service locations
- */
 export interface ServiceDiscoverResponse {
   [provider: string]: ServiceLocation;  // Uses existing ServiceLocation discriminated union
 }
 
 /**
- * Discovery status tracking for real-time UI updates
+ * Service connection test
- * Used by store to track per-provider discovery progress
  */
-export interface ProviderDiscoveryStatus {
+export interface ServiceTestRequest {
   provider: string;
-  status: 'pending' | 'discovering' | 'success' | 'failed';
+  // For existing service
-  location?: ServiceLocation;
+  identifier?: string | number | null;
-  error?: string;
+  // For fresh configuration
-  metadata?: {
+  location?: ServiceLocation | null;
-    host?: string;
+  identity?: ServiceIdentity | null;
-    port?: number;
-    protocol?: string;
-  };
 }
 
-// ==================== Service Testing Types ====================
+export interface ServiceTestResponse {
+  success: boolean;
+  message: string;
+}
 
 /**
- * Base service location interface
+ * Service location - Base
  */
 export interface ServiceLocationBase {
   type: 'URI' | 'SOCKET_SOLE' | 'SOCKET_SPLIT' | 'FILE';
 }
 
 /**
- * URI-based service location for API and web services
+ * Service location - URI-based type 
- * Used by: JMAP, Gmail API, etc.
  */
 export interface ServiceLocationUri extends ServiceLocationBase {
   type: 'URI';
@@ -209,8 +170,7 @@ export interface ServiceLocationUri extends ServiceLocationBase {
 }
 
 /**
- * Single socket-based service location
+ * Service location - Single socket-based type (combined inbound/outbound configuration)
- * Used by: services using a single host/port combination
  */
 export interface ServiceLocationSocketSole extends ServiceLocationBase {
   type: 'SOCKET_SOLE';
@@ -222,8 +182,7 @@ export interface ServiceLocationSocketSole extends ServiceLocationBase {
 }
 
 /**
- * Split socket-based service location
+ * Service location - Split socket-based type (separate inbound/outbound configurations)
- * Used by: traditional IMAP/SMTP configurations
  */
 export interface ServiceLocationSocketSplit extends ServiceLocationBase {
   type: 'SOCKET_SPLIT';
@@ -240,8 +199,7 @@ export interface ServiceLocationSocketSplit extends ServiceLocationBase {
 }
 
 /**
- * File-based service location
+ * Service location - File-based type (e.g., for local mail delivery or Unix socket)
- * Used by: local file system providers
  */
 export interface ServiceLocationFile extends ServiceLocationBase {
   type: 'FILE';
@@ -249,7 +207,7 @@ export interface ServiceLocationFile extends ServiceLocationBase {
 }
 
 /**
- * Discriminated union of all service location types
+ * Service location types
  */
 export type ServiceLocation = 
   | ServiceLocationUri 
@@ -257,24 +215,22 @@ export type ServiceLocation =
   | ServiceLocationSocketSplit 
   | ServiceLocationFile;
 
-// ==================== Service Identity Types ====================
-
 /**
- * Base service identity interface
+ * Service identity - base
  */
 export interface ServiceIdentityBase {
   type: 'NA' | 'BA' | 'TA' | 'OA' | 'CC';
 }
 
 /**
- * No authentication
+ * Service identity - No authentication
  */
 export interface ServiceIdentityNone extends ServiceIdentityBase {
   type: 'NA';
 }
 
 /**
- * Basic authentication (username/password)
+ * Service identity - Basic authentication type
  */
 export interface ServiceIdentityBasic extends ServiceIdentityBase {
   type: 'BA';
@@ -324,21 +280,58 @@ export type ServiceIdentity =
   | ServiceIdentityCertificate;
 
 /**
- * Service connection test request
+ * List filter specification format
+ * 
+ * Format: "type:length:defaultComparator:supportedComparators"
+ * 
+ * Examples:
+ * - "s:200:256:771" = String field, max 200 chars, default LIKE, supports EQ|NEQ|LIKE|NLIKE
+ * - "a:10:64:192" = Array field, max 10 items, default IN, supports IN|NIN
+ * - "i:0:1:31" = Integer field, default EQ, supports EQ|NEQ|GT|LT|GTE|LTE
+ * 
+ * Type codes:
+ * - s = string
+ * - i = integer
+ * - b = boolean
+ * - a = array
+ * 
+ * Comparator values are bitmasks that can be combined
  */
-export interface ServiceTestRequest {
+export type ServiceListFilterCollection = {
-  provider: string;
+  'label'?: string;
-  // For existing service
+  'rank'?: string;
-  identifier?: string | number | null;
+  [attribute: string]: string | undefined;
-  // For fresh configuration
+};
-  location?: ServiceLocation | null;
+
-  identity?: ServiceIdentity | null;
+export type ServiceListFilterEntity = {
+  '*'?: string;
+  'from'?: string;
+  'to'?: string;
+  'cc'?: string;
+  'bcc'?: string;
+  'subject'?: string;
+  'body'?: string;
+  'before'?: string;
+  'after'?: string;
+  'min'?: string;
+  'max'?: string;
+  [attribute: string]: string | undefined;
 }
 
 /**
- * Service connection test response
+ * Service list sort specification
  */
-export interface ServiceTestResponse {
+export type ServiceListSortCollection = ("label" | "rank" | string)[];
-  success: boolean;
+export type ServiceListSortEntity = ("from" | "to" | "subject" | "received" | "sent" | "size" | string)[];
-  message: string;
+
+export type ServiceListRange = {
+  'tally'?: string[];
+};
+
+
+export interface ServiceListFilterDefinition {
+  type: 'string' | 'integer' | 'date' | 'boolean' | 'array';
+  length: number;
+  defaultComparator: ListFilterComparisonOperator;
+  supportedComparators: ListFilterComparisonOperator[];
 }

src/utils/serviceHelpers.ts

@@ -1,276 +1,61 @@
 /**
- * Helper functions for working with service identity and location types
+ * Helper functions for working with service types
  */
 
-import type {
+import type { ServiceListFilterDefinition } from '@/types/service';
-  ServiceIdentity,
+import { ListFilterComparisonOperator } from '@/types/common';
-  ServiceIdentityNone,
-  ServiceIdentityBasic,
-  ServiceIdentityToken,
-  ServiceIdentityOAuth,
-  ServiceIdentityCertificate,
-  ServiceLocation,
-  ServiceLocationUri,
-  ServiceLocationSocketSole,
-  ServiceLocationSocketSplit,
-  ServiceLocationFile
-} from '@/types/service';
-
-// ==================== Identity Helpers ====================
 
 /**
- * Create a "None" identity (no authentication)
+ * Parse a filter specification string into its components
+ * 
+ * @param spec - Filter specification string (e.g., "s:200:256:771")
+ * @returns Parsed filter specification object
+ * 
+ * @example
+ * parseFilterSpec("s:200:256:771")
+ * // Returns: {
+ * //   type: 'string',
+ * //   length: 200,
+ * //   defaultComparator: 256 (LIKE),
+ * //   supportedComparators: [1, 2, 256, 512] (EQ, NEQ, LIKE, NLIKE)
+ * // }
  */
-export function createIdentityNone(): ServiceIdentityNone {
+export function parseFilterSpec(spec: string): ServiceListFilterDefinition {
-  return { type: 'NA' };
+  const [typeCode, lengthStr, defaultComparatorStr, supportedComparatorsStr] = spec.split(':');
+  
+  const typeMap: Record<string, ServiceListFilterDefinition['type']> = {
+    's': 'string',
+    'i': 'integer',
+    'd': 'date',
+    'b': 'boolean',
+    'a': 'array',
+  };
+  
+  const type = typeMap[typeCode];
+  if (!type) {
+    throw new Error(`Invalid filter type code: ${typeCode}`);
+  }
+  
+  const length = parseInt(lengthStr, 10);
+  const defaultComparator = parseInt(defaultComparatorStr, 10) as ListFilterComparisonOperator;
+  
+  // Parse supported comparators from bitmask
+  const supportedComparators: ListFilterComparisonOperator[] = [];
+  const supportedBitmask = parseInt(supportedComparatorsStr, 10);
+  
+  if (supportedBitmask !== 0) {
+    const allComparators = Object.values(ListFilterComparisonOperator).filter(v => typeof v === 'number') as number[];
+    for (const comparator of allComparators) {
+      if ((supportedBitmask & comparator) === comparator) {
+        supportedComparators.push(comparator as ListFilterComparisonOperator);
+      }
+    }
   }
   
-/**
- * Create a Basic Auth identity
- */
-export function createIdentityBasic(identity: string, secret: string): ServiceIdentityBasic {
   return {
-    type: 'BA',
+    type,
-    identity,
+    length,
-    secret
+    defaultComparator,
+    supportedComparators,
   };
 }
-
-/**
- * Create a Token Auth identity
- */
-export function createIdentityToken(token: string): ServiceIdentityToken {
-  return {
-    type: 'TA',
-    token
-  };
-}
-
-/**
- * Create an OAuth identity
- */
-export function createIdentityOAuth(
-  accessToken: string,
-  options?: {
-    accessScope?: string[];
-    accessExpiry?: number;
-    refreshToken?: string;
-    refreshLocation?: string;
-  }
-): ServiceIdentityOAuth {
-  return {
-    type: 'OA',
-    accessToken,
-    ...options
-  };
-}
-
-/**
- * Create a Certificate identity
- */
-export function createIdentityCertificate(
-  certificate: string,
-  privateKey: string,
-  passphrase?: string
-): ServiceIdentityCertificate {
-  return {
-    type: 'CC',
-    certificate,
-    privateKey,
-    ...(passphrase && { passphrase })
-  };
-}
-
-// ==================== Location Helpers ====================
-
-/**
- * Create a URI-based location
- */
-export function createLocationUri(
-  host: string,
-  options?: {
-    scheme?: 'http' | 'https';
-    port?: number;
-    path?: string;
-    verifyPeer?: boolean;
-    verifyHost?: boolean;
-  }
-): ServiceLocationUri {
-  return {
-    type: 'URI',
-    scheme: options?.scheme || 'https',
-    host,
-    port: options?.port || (options?.scheme === 'http' ? 80 : 443),
-    ...(options?.path && { path: options.path }),
-    verifyPeer: options?.verifyPeer ?? true,
-    verifyHost: options?.verifyHost ?? true
-  };
-}
-
-/**
- * Create a URI location from a full URL string
- */
-export function createLocationFromUrl(url: string): ServiceLocationUri {
-  try {
-    const parsed = new URL(url);
-    return {
-      type: 'URI',
-      scheme: parsed.protocol.replace(':', '') as 'http' | 'https',
-      host: parsed.hostname,
-      port: parsed.port ? parseInt(parsed.port) : (parsed.protocol === 'https:' ? 443 : 80),
-      path: parsed.pathname,
-      verifyPeer: true,
-      verifyHost: true
-    };
-  } catch (error) {
-    throw new Error(`Invalid URL: ${url}`);
-  }
-}
-
-/**
- * Create a single socket location (IMAP, SMTP on same server)
- */
-export function createLocationSocketSole(
-  host: string,
-  port: number,
-  encryption: 'none' | 'ssl' | 'tls' | 'starttls' = 'ssl',
-  options?: {
-    verifyPeer?: boolean;
-    verifyHost?: boolean;
-  }
-): ServiceLocationSocketSole {
-  return {
-    type: 'SOCKET_SOLE',
-    host,
-    port,
-    encryption,
-    verifyPeer: options?.verifyPeer ?? true,
-    verifyHost: options?.verifyHost ?? true
-  };
-}
-
-/**
- * Create a split socket location (separate IMAP/SMTP servers)
- */
-export function createLocationSocketSplit(
-  config: {
-    inboundHost: string;
-    inboundPort: number;
-    inboundEncryption?: 'none' | 'ssl' | 'tls' | 'starttls';
-    outboundHost: string;
-    outboundPort: number;
-    outboundEncryption?: 'none' | 'ssl' | 'tls' | 'starttls';
-    inboundVerifyPeer?: boolean;
-    inboundVerifyHost?: boolean;
-    outboundVerifyPeer?: boolean;
-    outboundVerifyHost?: boolean;
-  }
-): ServiceLocationSocketSplit {
-  return {
-    type: 'SOCKET_SPLIT',
-    inboundHost: config.inboundHost,
-    inboundPort: config.inboundPort,
-    inboundEncryption: config.inboundEncryption || 'ssl',
-    outboundHost: config.outboundHost,
-    outboundPort: config.outboundPort,
-    outboundEncryption: config.outboundEncryption || 'ssl',
-    inboundVerifyPeer: config.inboundVerifyPeer ?? true,
-    inboundVerifyHost: config.inboundVerifyHost ?? true,
-    outboundVerifyPeer: config.outboundVerifyPeer ?? true,
-    outboundVerifyHost: config.outboundVerifyHost ?? true
-  };
-}
-
-/**
- * Create a file-based location
- */
-export function createLocationFile(path: string): ServiceLocationFile {
-  return {
-    type: 'FILE',
-    path
-  };
-}
-
-// ==================== Validation Helpers ====================
-
-/**
- * Validate that an identity object is properly formed
- */
-export function validateIdentity(identity: ServiceIdentity): boolean {
-  switch (identity.type) {
-    case 'NA':
-      return true;
-    case 'BA':
-      return !!(identity as ServiceIdentityBasic).identity && 
-             !!(identity as ServiceIdentityBasic).secret;
-    case 'TA':
-      return !!(identity as ServiceIdentityToken).token;
-    case 'OA':
-      return !!(identity as ServiceIdentityOAuth).accessToken;
-    case 'CC':
-      return !!(identity as ServiceIdentityCertificate).certificate && 
-             !!(identity as ServiceIdentityCertificate).privateKey;
-    default:
-      return false;
-  }
-}
-
-/**
- * Validate that a location object is properly formed
- */
-export function validateLocation(location: ServiceLocation): boolean {
-  switch (location.type) {
-    case 'URI':
-      return !!(location as ServiceLocationUri).host && 
-             !!(location as ServiceLocationUri).port;
-    case 'SOCKET_SOLE':
-      return !!(location as ServiceLocationSocketSole).host && 
-             !!(location as ServiceLocationSocketSole).port;
-    case 'SOCKET_SPLIT':
-      const split = location as ServiceLocationSocketSplit;
-      return !!split.inboundHost && !!split.inboundPort &&
-             !!split.outboundHost && !!split.outboundPort;
-    case 'FILE':
-      return !!(location as ServiceLocationFile).path;
-    default:
-      return false;
-  }
-}
-
-// ==================== Type Guards ====================
-
-export function isIdentityNone(identity: ServiceIdentity): identity is ServiceIdentityNone {
-  return identity.type === 'NA';
-}
-
-export function isIdentityBasic(identity: ServiceIdentity): identity is ServiceIdentityBasic {
-  return identity.type === 'BA';
-}
-
-export function isIdentityToken(identity: ServiceIdentity): identity is ServiceIdentityToken {
-  return identity.type === 'TA';
-}
-
-export function isIdentityOAuth(identity: ServiceIdentity): identity is ServiceIdentityOAuth {
-  return identity.type === 'OA';
-}
-
-export function isIdentityCertificate(identity: ServiceIdentity): identity is ServiceIdentityCertificate {
-  return identity.type === 'CC';
-}
-
-export function isLocationUri(location: ServiceLocation): location is ServiceLocationUri {
-  return location.type === 'URI';
-}
-
-export function isLocationSocketSole(location: ServiceLocation): location is ServiceLocationSocketSole {
-  return location.type === 'SOCKET_SOLE';
-}
-
-export function isLocationSocketSplit(location: ServiceLocation): location is ServiceLocationSocketSplit {
-  return location.type === 'SOCKET_SPLIT';
-}
-
-export function isLocationFile(location: ServiceLocation): location is ServiceLocationFile {
-  return location.type === 'FILE';
-}