Refactoring to pass a reference of StoreCenter in the various classes

LeStorage/ApiCallCollection.swift

@@ -39,6 +39,8 @@ enum ApiCallError: Error, LocalizedError {
 /// Failing Api calls are stored forever and will be executed again later
 actor ApiCallCollection<T: SyncedStorable>: SomeCallCollection {
 
+    fileprivate var storeCenter: StoreCenter
+    
     /// The list of api calls
     fileprivate(set) var items: [ApiCall<T>] = []
 
@@ -61,6 +63,10 @@ actor ApiCallCollection<T: SyncedStorable>: SomeCallCollection {
         }
     }
     
+    init(storeCenter: StoreCenter) {
+        self.storeCenter = storeCenter
+    }
+
     /// Starts the JSON file decoding synchronously or asynchronously
     /// Reschedule Api calls if not empty
     func loadFromFile() throws {
@@ -185,7 +191,7 @@ actor ApiCallCollection<T: SyncedStorable>: SomeCallCollection {
     fileprivate func _waitAndExecuteApiCalls() async {
 
 //        Logger.log("\(T.resourceName()) > RESCHED")
-        guard !self._isExecutingCalls, StoreCenter.main.forceNoSynchronization == false else { return }
+        guard !self._isExecutingCalls, self.storeCenter.forceNoSynchronization == false else { return }
         guard self.items.isNotEmpty else { return }
 
         self._isExecutingCalls = true
@@ -235,7 +241,7 @@ actor ApiCallCollection<T: SyncedStorable>: SomeCallCollection {
                     let results = try await self._executeApiCalls(batch)
                     if T.copyServerResponse {
                         let instances = results.compactMap { $0.data }
-                        StoreCenter.main.updateLocalInstances(instances)
+                        self.storeCenter.updateLocalInstances(instances)
                     }
                 }
             } catch {
@@ -246,10 +252,10 @@ actor ApiCallCollection<T: SyncedStorable>: SomeCallCollection {
 
     fileprivate func _executeGetCall(apiCall: ApiCall<T>) async throws {
         if T.self == GetSyncData.self {
-            let _: Empty = try await StoreCenter.main.executeGet(apiCall: apiCall)
+            let _: Empty = try await self.storeCenter.executeGet(apiCall: apiCall)
         } else {
-            let results: [T] = try await StoreCenter.main.executeGet(apiCall: apiCall)
+            let results: [T] = try await self.storeCenter.executeGet(apiCall: apiCall)
-            await StoreCenter.main.itemsRetrieved(results, storeId: apiCall.storeId, clear: apiCall.option != .additive)
+            await self.storeCenter.itemsRetrieved(results, storeId: apiCall.storeId, clear: apiCall.option != .additive)
         }
     }
     
@@ -333,7 +339,7 @@ actor ApiCallCollection<T: SyncedStorable>: SomeCallCollection {
 
     /// Sends a GET request with an URLParameterConvertible [instance]
     func sendGetRequest(instance: URLParameterConvertible) async throws {
-        let parameters = instance.queryParameters()
+        let parameters = instance.queryParameters(storeCenter: self.storeCenter)
         try await self._sendGetRequest(parameters: parameters)
     }
     
@@ -394,7 +400,7 @@ actor ApiCallCollection<T: SyncedStorable>: SomeCallCollection {
     /// Executes an API call
     /// For POST requests, potentially copies additional data coming from the server during the insert
     fileprivate func _executeApiCalls(_ apiCalls: [ApiCall<T>]) async throws -> [OperationResult<T>] {
-        let results = try await StoreCenter.main.execute(apiCalls: apiCalls)
+        let results = try await self.storeCenter.execute(apiCalls: apiCalls)
         for result in results {
             switch result.status {
             case 200..<300:

LeStorage/BaseCollection.swift

@@ -78,10 +78,12 @@ public class BaseCollection<T: Storable>: SomeCollection, CollectionHolder {
         
     }
 
-    init() {
+    init(store: Store) {
-        self.store = Store.main
+        self.store = store
     }
 
+    var storeCenter: StoreCenter { return self.store.storeCenter }
+    
     /// Returns the name of the managed resource
     public var resourceName: String {
         return T.resourceName()
@@ -400,7 +402,7 @@ public class BaseCollection<T: Storable>: SomeCollection, CollectionHolder {
             try self.store.write(content: jsonString, fileName: T.fileName())
         } catch {
             Logger.error(error)
-            StoreCenter.main.log(
+            self.storeCenter.log(
                 message: "write failed for \(T.resourceName()): \(error.localizedDescription)")
         }
     }
@@ -440,7 +442,7 @@ public class StoredCollection<T: Storable>: BaseCollection<T>, RandomAccessColle
     
     /// Returns a dummy StoredCollection instance
     public static func placeholder() -> StoredCollection<T> {
-        return StoredCollection<T>()
+        return StoredCollection<T>(store: Store(storeCenter: StoreCenter.main))
     }
 
     // MARK: - RandomAccessCollection

LeStorage/Codables/GetSyncData.swift

@@ -30,9 +30,9 @@ class GetSyncData: SyncedModelObject, SyncedStorable, URLParameterConvertible {
         self.date = getSyncData.date
     }
     
-    func queryParameters() -> [String : String] {
+    func queryParameters(storeCenter: StoreCenter) -> [String : String] {
         return ["last_update" : self._formattedLastUpdate,
-                "device_id" : StoreCenter.main.deviceId()]
+                "device_id" : storeCenter.deviceId()]
     }
     
     fileprivate var _formattedLastUpdate: String {

LeStorage/Services.swift

@@ -41,10 +41,13 @@ let userNamesCall: ServiceCall = ServiceCall(
 /// A class used to send HTTP request to the django server
 public class Services {
 
+    fileprivate let storeCenter: StoreCenter
+    
     /// The base API URL to send requests
     fileprivate(set) var baseURL: String
 
-    public init(url: String) {
+    public init(storeCenter: StoreCenter, url: String) {
+        self.storeCenter = storeCenter
         self.baseURL = url
     }
     
@@ -91,10 +94,10 @@ public class Services {
             print("\(debugURL) ended, status code = \(statusCode)")
             switch statusCode {
             case 200..<300: // success
-                try await StoreCenter.main.deleteApiCallById(type: T.self, id: apiCall.id)
+                try await self.storeCenter.deleteApiCallById(type: T.self, id: apiCall.id)
                 
                 if T.self == GetSyncData.self {
-                    await StoreCenter.main.synchronizeContent(task.0)
+                    await self.storeCenter.synchronizeContent(task.0)
                 }
 
             default:  // error
@@ -107,8 +110,8 @@ public class Services {
                     errorMessage = message
                 }
 
-                try await StoreCenter.main.rescheduleApiCalls(type: T.self)
+                try await self.storeCenter.rescheduleApiCalls(type: T.self)
-                StoreCenter.main.logFailedAPICall(
+                self.storeCenter.logFailedAPICall(
                     apiCall.id, request: request, collectionName: T.resourceName(),
                     error: errorMessage.message)
 
@@ -116,7 +119,7 @@ public class Services {
             }
         } else {
             let message: String = "Unexpected and unmanaged URL Response \(task.1)"
-            StoreCenter.main.log(message: message)
+            self.storeCenter.log(message: message)
             Logger.w(message)
         }
 
@@ -160,7 +163,7 @@ public class Services {
             }
         } else {
             let message: String = "Unexpected and unmanaged URL Response \(task.1)"
-            StoreCenter.main.log(message: message)
+            self.storeCenter.log(message: message)
             Logger.w(message)
         }
         return try self._decode(data: task.0)
@@ -258,7 +261,7 @@ public class Services {
         request.setValue("application/json", forHTTPHeaderField: "Content-Type")
         request.addAppVersion()
         if !(requiresToken == false) {
-            let token = try StoreCenter.main.token()
+            let token = try self.storeCenter.token()
             request.addValue("Token \(token)", forHTTPHeaderField: "Authorization")
         }
         return request
@@ -313,9 +316,9 @@ public class Services {
                 if let message = self.errorMessageFromResponse(data: task.0) {
                     errorMessage = message
                 }
-                try await StoreCenter.main.rescheduleApiCalls(type: T.self)
+                try await self.storeCenter.rescheduleApiCalls(type: T.self)
                 
-                //                StoreCenter.main.logFailedAPICall(
+                //                self.storeCenter.logFailedAPICall(
                 //                    apiCall.id, request: request, collectionName: T.resourceName(),
                 //                    error: errorMessage.message)
                 
@@ -323,12 +326,12 @@ public class Services {
             }
         } else {
             let message: String = "Unexpected and unmanaged URL Response \(task.1)"
-            StoreCenter.main.log(message: message)
+            self.storeCenter.log(message: message)
             Logger.w(message)
         }
         
         if rescheduleApiCalls {
-            try? await StoreCenter.main.rescheduleApiCalls(type: T.self)
+            try? await self.storeCenter.rescheduleApiCalls(type: T.self)
         }
         
         return results
@@ -353,8 +356,8 @@ public class Services {
         request.setValue("application/json", forHTTPHeaderField: "Content-Type")
         request.addAppVersion()
         
-        if self._isTokenRequired(type: T.self, method: apiCall.method), StoreCenter.main.isAuthenticated {
+        if self._isTokenRequired(type: T.self, method: apiCall.method), self.storeCenter.isAuthenticated {
-            let token = try StoreCenter.main.token()
+            let token = try self.storeCenter.token()
             request.addValue("Token \(token)", forHTTPHeaderField: "Authorization")
         }
         
@@ -396,7 +399,7 @@ public class Services {
         var request = URLRequest(url: url)
         request.httpMethod = HTTPMethod.post.rawValue
         request.setValue("application/json", forHTTPHeaderField: "Content-Type")
-        let token = try StoreCenter.main.token()
+        let token = try self.storeCenter.token()
         request.addValue("Token \(token)", forHTTPHeaderField: "Authorization")
         request.addAppVersion()
 
@@ -411,7 +414,7 @@ public class Services {
         }
         
         let payload = SyncPayload(operations: operations,
-                                  deviceId: StoreCenter.main.deviceId())
+                                  deviceId: self.storeCenter.deviceId())
         request.httpBody = try JSON.encoder.encode(payload)
         
         return request
@@ -423,7 +426,7 @@ public class Services {
     func synchronizeLastUpdates(since: Date?) async throws {
         let request = try self._getSyncLogRequest(since: since)
         if let data = try await self._runRequest(request) {
-            await StoreCenter.main.synchronizeContent(data)
+            await self.storeCenter.synchronizeContent(data)
         }
     }
 
@@ -447,7 +450,7 @@ public class Services {
         request.httpMethod = HTTPMethod.get.rawValue
         request.setValue("application/json", forHTTPHeaderField: "Content-Type")
 
-        let token = try StoreCenter.main.token()
+        let token = try self.storeCenter.token()
         request.addValue("Token \(token)", forHTTPHeaderField: "Authorization")
 
         return request
@@ -482,7 +485,7 @@ public class Services {
             }
         } else {
             let message: String = "Unexpected and unmanaged URL Response \(task.1)"
-            StoreCenter.main.log(message: message)
+            self.storeCenter.log(message: message)
             Logger.w(message)
         }
         return nil
@@ -540,7 +543,7 @@ public class Services {
         request.addAppVersion()
         if self._isTokenRequired(type: T.self, method: apiCall.method) {
             do {
-                let token = try StoreCenter.main.token()
+                let token = try self.storeCenter.token()
                 request.setValue("Token \(token)", forHTTPHeaderField: "Authorization")
             } catch {
                 Logger.log("missing token")
@@ -585,14 +588,14 @@ public class Services {
     ///  - password: the account's password
     public func requestToken(username: String, password: String) async throws -> String {
         var postRequest = try self._baseRequest(call: requestTokenCall)
-        let deviceId = StoreCenter.main.deviceId()
+        let deviceId = self.storeCenter.deviceId()
         
         let deviceModel = await UIDevice.current.deviceModel()
         
         let credentials = Credentials(username: username, password: password, deviceId: deviceId, deviceModel: deviceModel)
         postRequest.httpBody = try JSON.encoder.encode(credentials)
         let response: AuthResponse = try await self._runRequest(postRequest)
-        try StoreCenter.main.storeToken(username: username, token: response.token)
+        try self.storeCenter.storeToken(username: username, token: response.token)
         return response.token
     }
 
@@ -606,7 +609,7 @@ public class Services {
         let postRequest = try self._baseRequest(call: getUserCall)
         let loggingDate = Date() // ideally we want the date of the latest retrieved object when loading collection objects
         let user: U = try await self._runRequest(postRequest)
-        StoreCenter.main.userDidLogIn(user: user, at: loggingDate)
+        self.storeCenter.userDidLogIn(user: user, at: loggingDate)
         return user
     }
 
@@ -615,7 +618,7 @@ public class Services {
     ///  - username: the account's username
     ///  - password: the account's password
     public func logout() async throws {
-        let deviceId: String = StoreCenter.main.deviceId()
+        let deviceId: String = self.storeCenter.deviceId()
         let _: Empty = try await self._runRequest(
             serviceCall: logoutCall, payload: Logout(deviceId: deviceId))
     }
@@ -635,7 +638,7 @@ public class Services {
     func getUserDataAccess() async throws {
         let request = try self._baseRequest(call: getUserDataAccessCall)
         if let data = try await self._runRequest(request) {
-            await StoreCenter.main.userDataAccessRetrieved(data)
+            await self.storeCenter.userDataAccessRetrieved(data)
         }
     }
 
@@ -648,7 +651,7 @@ public class Services {
         async throws
     {
 
-        guard let username = StoreCenter.main.userName else {
+        guard let username = self.storeCenter.userName else {
             throw ServiceError.missingUserName
         }
 
@@ -663,7 +666,7 @@ public class Services {
         let response: Token = try await self._runRequest(
             serviceCall: changePasswordCall, payload: params)
 
-        try StoreCenter.main.storeToken(username: username, token: response.token)
+        try self.storeCenter.storeToken(username: username, token: response.token)
     }
 
     /// The method send a request to reset the user's password
@@ -681,7 +684,7 @@ public class Services {
     ///  - username: the account's username
     ///  - password: the account's password
     public func deleteAccount() async throws {
-        guard let userId = StoreCenter.main.userId else {
+        guard let userId = self.storeCenter.userId else {
             throw StoreError.missingUserId
         }
         let path = "users/\(userId)/"

LeStorage/Store.swift

@@ -43,8 +43,10 @@ public enum StoreError: Error, LocalizedError {
 
 final public class Store {
     
+    fileprivate(set) var storeCenter: StoreCenter
+    
     /// The Store singleton
-    public static let main = Store()
+//    public static let main = Store()
     
     /// The dictionary of registered collections
     fileprivate var _collections: [String : any SomeCollection] = [:]
@@ -55,16 +57,20 @@ final public class Store {
     /// The store identifier, used to name the store directory, and to perform filtering requests to the server
     public fileprivate(set) var identifier: String? = nil
     
-    public init() {
+    public init(storeCenter: StoreCenter) {
+        self.storeCenter = storeCenter
         self._createDirectory(directory: Store.storageDirectory)
     }
     
-    public required init(identifier: String) {
+    public required init(storeCenter: StoreCenter, identifier: String) {
+        self.storeCenter = storeCenter
         self.identifier = identifier
         let directory = "\(Store.storageDirectory)/\(identifier)"
         self._createDirectory(directory: directory)
     }
     
+    public static var main: Store { return StoreCenter.main.mainStore }
+    
     /// Creates the store directory
     /// - Parameters:
     ///   - directory: the name of the directory
@@ -105,7 +111,7 @@ final public class Store {
         
         let collection = SyncedCollection<T>(store: self, indexed: indexed, inMemory: inMemory, limit: limit)
         self._collections[T.resourceName()] = collection
-        StoreCenter.main.loadApiCallCollection(type: T.self)
+        self.storeCenter.loadApiCallCollection(type: T.self)
         return collection
     }
     
@@ -120,7 +126,7 @@ final public class Store {
         self._collections[T.resourceName()] = storedObject
         
         if synchronized {
-            StoreCenter.main.loadApiCallCollection(type: T.self)
+            self.storeCenter.loadApiCallCollection(type: T.self)
         }
         
         return storedObject
@@ -298,9 +304,9 @@ final public class Store {
     /// Retrieves all the items on the server
     public func getItems<T: SyncedStorable>() async throws -> [T] {
         if let identifier = self.identifier {
-            return try await StoreCenter.main.getItems(identifier: identifier)
+            return try await self.storeCenter.getItems(identifier: identifier)
         } else {
-            return try await StoreCenter.main.getItems()
+            return try await self.storeCenter.getItems()
         }
     }
     

LeStorage/StoreCenter.swift

@@ -16,6 +16,8 @@ public class StoreCenter {
     /// A dictionary of Stores associated to their id
     fileprivate var _stores: [String: Store] = [:]
 
+    lazy var mainStore: Store = { Store(storeCenter: self) }()
+    
     /// A KeychainStore object used to store the user's token
     var keychainStore: KeychainStore? = nil
 
@@ -36,7 +38,7 @@ public class StoreCenter {
     fileprivate var _apiCallCollections: [String: any SomeCallCollection] = [:]
 
     /// A collection of DataLog objects, used for the synchronization
-    fileprivate var _dataLogs: StoredCollection<DataLog>
+    lazy fileprivate var _deleteLogs: StoredCollection<DataLog> = { self.mainStore.registerCollection() }()
 
     /// A synchronized collection of DataAccess
     fileprivate var _dataAccess: SyncedCollection<DataAccess>? = nil
@@ -53,10 +55,10 @@ public class StoreCenter {
     /// The URL manager
     fileprivate var _urlManager: URLManager? = nil
     
-    init() {
+    /// Memory only alternate device id for testing purpose
+    var alternateDeviceId: String? = nil
     
-//        self._syncGetRequests = ApiCallCollection()
+    init() {
-        self._dataLogs = Store.main.registerCollection()
         
         self._setupNotifications()
 
@@ -72,10 +74,10 @@ public class StoreCenter {
     public func configureURLs(secureScheme: Bool, domain: String) {
         let urlManager: URLManager = URLManager(secureScheme: secureScheme, domain: domain)
         self._urlManager = urlManager
-        self._services = Services(url: urlManager.api)
+        self._services = Services(storeCenter: self, url: urlManager.api)
         self.keychainStore = KeychainStore(serverId: urlManager.api)
 
-        self._dataAccess = Store.main.registerSynchronizedCollection()
+        self._dataAccess = self.mainStore.registerSynchronizedCollection()
 
         Logger.log("Sync URL: \(urlManager.api)")
         
@@ -98,7 +100,7 @@ public class StoreCenter {
             return
         }
         let url = urlManager.websocket(userId: userId)
-        self._webSocketManager = WebSocketManager(urlString: url)
+        self._webSocketManager = WebSocketManager(storeCenter: self, urlString: url)
         Logger.log("websocket configured: \(url)")
     }
     
@@ -173,7 +175,7 @@ public class StoreCenter {
         if let store = self._stores[identifier] {
             return store
         } else {
-            let store = Store(identifier: identifier)
+            let store = Store(storeCenter: self, identifier: identifier)
             self._registerStore(store: store)
             return store
         }
@@ -220,7 +222,7 @@ public class StoreCenter {
 
         self._stores.removeAll()
         self._dataAccess?.reset()
-        self._dataLogs.reset()
+        self._deleteLogs.reset()
         
         self._settingsStorage.update { settings in
             settings.username = nil
@@ -258,6 +260,10 @@ public class StoreCenter {
     /// If created, stores it inside the keychain to get a consistent value even if the app is deleted
     /// as UIDevice.current.identifierForVendor value changes when the app is deleted and installed again
     func deviceId() -> String {
+        if let alternateDeviceId {
+            return alternateDeviceId
+        }
+        
         let keychainStore = KeychainStore(serverId: "lestorage.main")
         do {
             return try keychainStore.getValue()
@@ -278,7 +284,7 @@ public class StoreCenter {
     /// Instantiates and loads an ApiCallCollection with the provided type
     public func loadApiCallCollection<T: SyncedStorable>(type: T.Type) {
         if self._apiCallCollections[T.resourceName()] == nil {
-            let apiCallCollection = ApiCallCollection<T>()
+            let apiCallCollection = ApiCallCollection<T>(storeCenter: self)
             self._apiCallCollections[T.resourceName()] = apiCallCollection
             Task {
                 do {
@@ -491,7 +497,7 @@ public class StoreCenter {
     
     /// Loads all the data from the server for the users
     public func initialSynchronization(clear: Bool) {
-        Store.main.loadCollectionsFromServer(clear: clear)
+        self.mainStore.loadCollectionsFromServer(clear: clear)
         
         // request data that has been shared with the user
         Task {
@@ -607,7 +613,7 @@ public class StoreCenter {
             }
 
         } catch {
-            StoreCenter.main.log(message: error.localizedDescription)
+            self.log(message: error.localizedDescription)
             Logger.error(error)
         }
         
@@ -640,7 +646,7 @@ public class StoreCenter {
 //                    Logger.log(">>> \(decodedObject.lastUpdate.timeIntervalSince1970) : \(decodedObject.id)")
 
                     let storeId: String? = decodedObject.getStoreId()
-                    StoreCenter.main.synchronizationAddOrUpdate(decodedObject, storeId: storeId, shared: shared)
+                    self.synchronizationAddOrUpdate(decodedObject, storeId: storeId, shared: shared)
                 } catch {
                     Logger.w("Issue with json decoding: \(updateItem)")
                     Logger.error(error)
@@ -663,7 +669,7 @@ public class StoreCenter {
                     let data = try JSONSerialization.data(withJSONObject: deleted, options: [])
                     let deletedObject = try JSON.decoder.decode(ObjectIdentifier.self, from: data)
                     
-                    StoreCenter.main.synchronizationDelete(id: deletedObject.modelId, model: className, storeId: deletedObject.storeId)
+                    self.synchronizationDelete(id: deletedObject.modelId, model: className, storeId: deletedObject.storeId)
                 } catch {
                     Logger.error(error)
                 }
@@ -683,7 +689,7 @@ public class StoreCenter {
                 do {
                     let data = try JSONSerialization.data(withJSONObject: revoked, options: [])
                     let revokedObject = try JSON.decoder.decode(ObjectIdentifier.self, from: data)
-                    StoreCenter.main.synchronizationDelete(id: revokedObject.modelId, model: className, storeId: revokedObject.storeId)
+                    self.synchronizationDelete(id: revokedObject.modelId, model: className, storeId: revokedObject.storeId)
                 } catch {
                     Logger.error(error)
                 }
@@ -707,7 +713,7 @@ public class StoreCenter {
                 do {
                     let data = try JSONSerialization.data(withJSONObject: parentItem, options: [])
                     let revokedObject = try JSON.decoder.decode(ObjectIdentifier.self, from: data)
-                    StoreCenter.main.synchronizationRevoke(id: revokedObject.modelId, model: className, storeId: revokedObject.storeId)
+                    self.synchronizationRevoke(id: revokedObject.modelId, model: className, storeId: revokedObject.storeId)
                 } catch {
                     Logger.error(error)
                 }
@@ -736,18 +742,18 @@ public class StoreCenter {
             if let store = self._stores[storeId] {
                 return store
             } else {
-                let store = Store(identifier: storeId)
+                let store = Store(storeCenter: self, identifier: storeId)
                 self._registerStore(store: store)
                 return store
             }
         } else {
-            return Store.main
+            return self.mainStore
         }
     }
 
     /// Returns whether a data has already been deleted by, to avoid inserting it again
     fileprivate func _hasAlreadyBeenDeleted<T: Storable>(_ instance: T) -> Bool {
-        return self._dataLogs.contains(where: {
+        return self._deleteLogs.contains(where: {
             $0.dataId == instance.stringId && $0.operation == .delete
         })
     }
@@ -783,7 +789,7 @@ public class StoreCenter {
             do {
                 let type = try StoreCenter.classFromName(model)
                 if self._instanceShared(id: id, type: type) {
-                    let count = Store.main.referenceCount(type: type, id: id)
+                    let count = self.mainStore.referenceCount(type: type, id: id)
                     if count == 0 {
                         try self._store(id: storeId).deleteNoSync(type: type, id: id)
                     }
@@ -797,14 +803,14 @@ public class StoreCenter {
     /// Returns whether an instance has been shared with the user
     fileprivate func _instanceShared<T: SyncedStorable>(id: String, type: T.Type) -> Bool {
         let realId: T.ID = T.buildRealId(id: id)
-        let instance: T? = Store.main.findById(realId)
+        let instance: T? = self.mainStore.findById(realId)
         return instance?.shared == true
     }
 
     /// Deletes a data log by data id
     fileprivate func _cleanupDataLog(dataId: String) {
-        let logs = self._dataLogs.filter { $0.dataId == dataId }
+        let logs = self._deleteLogs.filter { $0.dataId == dataId }
-        self._dataLogs.delete(contentOfs: logs)
+        self._deleteLogs.delete(contentOfs: logs)
     }
 
     /// Creates a delete log for an instance
@@ -816,7 +822,7 @@ public class StoreCenter {
     fileprivate func _addDataLog<T: Storable>(_ instance: T, method: HTTPMethod) {
         let dataLog = DataLog(
             dataId: instance.stringId, modelName: String(describing: T.self), operation: method)
-        self._dataLogs.addOrUpdate(instance: dataLog)
+        self._deleteLogs.addOrUpdate(instance: dataLog)
     }
 
     // MARK: - Miscellanous
@@ -863,7 +869,7 @@ public class StoreCenter {
 
     /// This method triggers the framework to save and send failed api calls
     public func logsFailedAPICalls() {
-        self._failedAPICallsCollection = Store.main.registerSynchronizedCollection(limit: 50)
+        self._failedAPICallsCollection = self.mainStore.registerSynchronizedCollection(limit: 50)
     }
 
     /// If configured for, logs and send to the server a failed API call
@@ -963,7 +969,7 @@ public class StoreCenter {
     /// Returns the collection hosting an instance
     func collectionOfInstance<T: Storable>(_ instance: T) -> BaseCollection<T>? {
         do {
-            let collection: BaseCollection<T> = try Store.main.collection()
+            let collection: BaseCollection<T> = try self.mainStore.collection()
             if collection.findById(instance.id) != nil {
                 return collection
             } else {
@@ -1028,7 +1034,7 @@ public class StoreCenter {
         if let logs = self._logs {
             return logs
         } else {
-            let logsCollection: SyncedCollection<Log> = Store.main.registerSynchronizedCollection(limit: 50)
+            let logsCollection: SyncedCollection<Log> = self.mainStore.registerSynchronizedCollection(limit: 50)
             self._logs = logsCollection
             return logsCollection
         }

LeStorage/SyncedCollection.swift

@@ -16,7 +16,7 @@ public class SyncedCollection<T : SyncedStorable>: BaseCollection<T>, SomeSynced
     
     /// Returns a dummy SyncedCollection instance
     public static func placeholder() -> SyncedCollection<T> {
-        return SyncedCollection<T>()
+        return SyncedCollection<T>(store: Store(storeCenter: StoreCenter.main))
     }
 
     /// Migrates if necessary and asynchronously decodes the json file
@@ -50,7 +50,7 @@ public class SyncedCollection<T : SyncedStorable>: BaseCollection<T>, SomeSynced
             throw StoreError.cannotSyncCollection(name: self.resourceName)
         }
         do {
-            try await StoreCenter.main.sendGetRequest(T.self, storeId: self.storeId, clear: clear)
+            try await self.storeCenter.sendGetRequest(T.self, storeId: self.storeId, clear: clear)
         } catch {
             Logger.error(error)
         }
@@ -211,7 +211,7 @@ public class SyncedCollection<T : SyncedStorable>: BaseCollection<T>, SomeSynced
             if self.deleteItem(instance, shouldBeSynchronized: true) {
                 deleted.append(instance)
             }
-            StoreCenter.main.createDeleteLog(instance)
+            self.storeCenter.createDeleteLog(instance)
         }
         
         let batch = OperationBatch<T>()
@@ -254,7 +254,7 @@ public class SyncedCollection<T : SyncedStorable>: BaseCollection<T>, SomeSynced
     /// Deletes an instance without writing, logs the operation and sends an API call
     fileprivate func _deleteNoWrite(instance: T) {
         self.deleteItem(instance, shouldBeSynchronized: true)
-        StoreCenter.main.createDeleteLog(instance)
+        self.storeCenter.createDeleteLog(instance)
 //        await self._sendDeletion(instance)
     }
     
@@ -324,7 +324,7 @@ public class SyncedCollection<T : SyncedStorable>: BaseCollection<T>, SomeSynced
     
     fileprivate func _sendOperationBatch(_ batch: OperationBatch<T>) async {
         do {
-            try await StoreCenter.main.sendOperationBatch(batch)
+            try await self.storeCenter.sendOperationBatch(batch)
         } catch {
             Logger.error(error)
         }
@@ -332,7 +332,7 @@ public class SyncedCollection<T : SyncedStorable>: BaseCollection<T>, SomeSynced
     
     fileprivate func _executeBatchOnce(_ batch: OperationBatch<T>) async {
         do {
-            try await StoreCenter.main.singleBatchExecution(batch)
+            try await self.storeCenter.singleBatchExecution(batch)
         } catch {
             Logger.error(error)
         }
@@ -341,13 +341,13 @@ public class SyncedCollection<T : SyncedStorable>: BaseCollection<T>, SomeSynced
     // MARK: Single calls
     
     public func addsIfPostSucceeds(_ instance: T) async throws {
-        if let result = try await StoreCenter.main.service().post(instance) {
+        if let result = try await self.storeCenter.service().post(instance) {
             self.addOrUpdateNoSync(result)
         }
     }
     
     public func updateIfPutSucceeds(_ instance: T) async throws {
-        if let result = try await StoreCenter.main.service().put(instance) {
+        if let result = try await self.storeCenter.service().put(instance) {
             self.addOrUpdateNoSync(result)
         }
     }
@@ -422,11 +422,13 @@ public class SyncedCollection<T : SyncedStorable>: BaseCollection<T>, SomeSynced
     // MARK: - Others
     
     /// Sends a POST request for the instance, and changes the collection to perform a write
-    public func writeChangeAndInsertOnServer(instance: T) async {
+    public func writeChangeAndInsertOnServer(instance: T) {
-        defer {
+        Task {
-            self.setChanged()
+            await self._sendInsertion(instance)
+            await MainActor.run {
+                self.setChanged()
+            }
         }
-        await self._sendInsertion(instance)
     }
     
 }

LeStorage/SyncedStorable.swift

@@ -23,7 +23,7 @@ public protocol SyncedStorable: Storable {
 }
 
 protocol URLParameterConvertible {
-    func queryParameters() -> [String : String]
+    func queryParameters(storeCenter: StoreCenter) -> [String : String]
 }
 
 public protocol SideStorable {

LeStorage/WebSocketManager.swift

@@ -11,6 +11,8 @@ import Combine
 
 class WebSocketManager: ObservableObject {
 
+    fileprivate(set) var storeCenter: StoreCenter
+    
     fileprivate var _webSocketTask: URLSessionWebSocketTask?
     fileprivate var _timer: Timer?
     fileprivate var _url: String
@@ -19,7 +21,8 @@ class WebSocketManager: ObservableObject {
     fileprivate var _failure = false
     fileprivate var _pingOk = false
     
-    init(urlString: String) {
+    init(storeCenter: StoreCenter, urlString: String) {
+        self.storeCenter = storeCenter
         self._url = urlString
         _setupWebSocket()
     }
@@ -63,13 +66,13 @@ class WebSocketManager: ObservableObject {
                 switch message {
                 case .string(let deviceId):
 //                    print("device id = \(StoreCenter.main.deviceId()), origin id: \(deviceId)")
-                    guard StoreCenter.main.deviceId() != deviceId else {
+                    guard self.storeCenter.deviceId() != deviceId else {
                         break
                     }
                     
                     Task {
                         do {
-                            try await StoreCenter.main.synchronizeLastUpdates()
+                            try await self.storeCenter.synchronizeLastUpdates()
                         } catch {
                             Logger.error(error)
                         }

LeStorageTests/ApiCallTests.swift

@@ -34,7 +34,7 @@ class Thing: SyncedModelObject, SyncedStorable, URLParameterConvertible {
     
     static func relationships() -> [LeStorage.Relationship] { return [] }
     
-    func queryParameters() -> [String : String] {
+    func queryParameters(storeCenter: StoreCenter) -> [String : String] {
         return ["yeah?" : "god!"]
     }
 
@@ -43,7 +43,7 @@ class Thing: SyncedModelObject, SyncedStorable, URLParameterConvertible {
 struct ApiCallTests {
 
     @Test func testApiCallProvisioning1() async throws {
-        let collection = ApiCallCollection<Thing>()
+        let collection = ApiCallCollection<Thing>(storeCenter: StoreCenter.main)
         
         let thing = Thing(name: "yeah")
         
@@ -69,7 +69,7 @@ struct ApiCallTests {
     }
 
     @Test func testApiCallProvisioning2() async throws {
-        let collection = ApiCallCollection<Thing>()
+        let collection = ApiCallCollection<Thing>(storeCenter: StoreCenter.main)
         
         let thing = Thing(name: "yeah")
         
@@ -94,7 +94,7 @@ struct ApiCallTests {
     }
 
     @Test func testApiCallProvisioning3() async throws {
-        let collection = ApiCallCollection<Thing>()
+        let collection = ApiCallCollection<Thing>(storeCenter: StoreCenter.main)
         
         let thing = Thing(name: "yeah")
         
@@ -107,7 +107,7 @@ struct ApiCallTests {
     }
 
     @Test func testGetProvisioning() async throws {
-        let collection = ApiCallCollection<Thing>()
+        let collection = ApiCallCollection<Thing>(storeCenter: StoreCenter.main)
 
         try await collection.sendGetRequest(storeId: "1")
         await #expect(collection.items.count == 1)

LeStorageTests/CollectionsTests.swift

@@ -6,7 +6,7 @@
 //
 
 import Testing
-import LeStorage
+@testable import LeStorage
 
 class Car: ModelObject, Storable {
     
@@ -47,8 +47,9 @@ struct CollectionsTests {
     var boats: SyncedCollection<Boat>
     
     init() {
-        cars = Store.main.registerCollection(inMemory: true)
+        let storeCenter = StoreCenter.main
-        boats = Store.main.registerSynchronizedCollection(inMemory: true)
+        cars = storeCenter.mainStore.registerCollection(inMemory: true)
+        boats = storeCenter.mainStore.registerSynchronizedCollection(inMemory: true)
     }
     
     func ensureCollectionLoaded(_ collection: any SomeCollection) async throws {

LeStorageTests/IdentifiableTests.swift

@@ -6,7 +6,7 @@
 //
 
 import Testing
-import LeStorage
+@testable import LeStorage
 
 class IntObject: ModelObject, Storable {
    
@@ -32,7 +32,6 @@ class IntObject: ModelObject, Storable {
 class StringObject: ModelObject, Storable {
     static func resourceName() -> String { "string" }
     static func tokenExemptedMethods() -> [LeStorage.HTTPMethod] { [] }
-    static var relationshipNames: [String] = []
 
     var id: String
     var name: String
@@ -56,8 +55,9 @@ struct IdentifiableTests {
     let stringObjects: StoredCollection<StringObject>
 
     init() {
-        intObjects = Store.main.registerCollection()
+        let storeCenter = StoreCenter.main
-        stringObjects = Store.main.registerCollection()
+        intObjects = storeCenter.mainStore.registerCollection()
+        stringObjects = storeCenter.mainStore.registerCollection()
     }
     
     func ensureCollectionLoaded(_ collection: any SomeCollection) async throws {

LeStorageTests/StoredCollectionTests.swift

@@ -6,7 +6,7 @@
 //
 
 import Testing
-import LeStorage
+@testable import LeStorage
 
 struct Error: Swift.Error, CustomStringConvertible {
     let description: String
@@ -21,7 +21,7 @@ struct StoredCollectionTests {
     var collection: StoredCollection<MockStorable>
     
     init() {
-        collection = Store.main.registerCollection()
+        collection = StoreCenter.main.mainStore.registerCollection()
     }
     
     func ensureCollectionLoaded() async throws {