v2.0.31

.gitea/workflows/default_nottags.yaml

@@ -6,8 +6,8 @@ on:
       - '**'
 
 env:
-  IMAGE: registry.gitlab.com/hosttoday/ht-docker-node:npmci
-  NPMCI_COMPUTED_REPOURL: https://${{gitea.repository_owner}}:${{secrets.GITEA_TOKEN}}@gitea.lossless.digital/${{gitea.repository}}.git
+  IMAGE: code.foss.global/host.today/ht-docker-node:npmci
+  NPMCI_COMPUTED_REPOURL: https://${{gitea.repository_owner}}:${{secrets.GITEA_TOKEN}}@code.foss.global/${{gitea.repository}}.git
   NPMCI_TOKEN_NPM: ${{secrets.NPMCI_TOKEN_NPM}}
   NPMCI_TOKEN_NPM2: ${{secrets.NPMCI_TOKEN_NPM2}}
   NPMCI_GIT_GITHUBTOKEN: ${{secrets.NPMCI_GIT_GITHUBTOKEN}}
@@ -26,7 +26,7 @@ jobs:
       - name: Install pnpm and npmci
         run: |
           pnpm install -g pnpm
-          pnpm install -g @shipzone/npmci
+          pnpm install -g @ship.zone/npmci
 
       - name: Run npm prepare
         run: npmci npm prepare

.gitea/workflows/default_tags.yaml

@@ -6,8 +6,8 @@ on:
       - '*'
 
 env:
-  IMAGE: registry.gitlab.com/hosttoday/ht-docker-node:npmci
-  NPMCI_COMPUTED_REPOURL: https://${{gitea.repository_owner}}:${{secrets.GITEA_TOKEN}}@gitea.lossless.digital/${{gitea.repository}}.git
+  IMAGE: code.foss.global/host.today/ht-docker-node:npmci
+  NPMCI_COMPUTED_REPOURL: https://${{gitea.repository_owner}}:${{secrets.GITEA_TOKEN}}@code.foss.global/${{gitea.repository}}.git
   NPMCI_TOKEN_NPM: ${{secrets.NPMCI_TOKEN_NPM}}
   NPMCI_TOKEN_NPM2: ${{secrets.NPMCI_TOKEN_NPM2}}
   NPMCI_GIT_GITHUBTOKEN: ${{secrets.NPMCI_GIT_GITHUBTOKEN}}
@@ -26,7 +26,7 @@ jobs:
       - name: Prepare
         run: |
           pnpm install -g pnpm
-          pnpm install -g @shipzone/npmci
+          pnpm install -g @ship.zone/npmci
           npmci npm prepare
 
       - name: Audit production dependencies
@@ -54,7 +54,7 @@ jobs:
       - name: Prepare
         run: |
           pnpm install -g pnpm
-          pnpm install -g @shipzone/npmci
+          pnpm install -g @ship.zone/npmci
           npmci npm prepare
 
       - name: Test stable
@@ -82,7 +82,7 @@ jobs:
       - name: Prepare
         run: |
           pnpm install -g pnpm
-          pnpm install -g @shipzone/npmci
+          pnpm install -g @ship.zone/npmci
           npmci npm prepare
 
       - name: Release
@@ -104,7 +104,7 @@ jobs:
       - name: Prepare
         run: |
           pnpm install -g pnpm
-          pnpm install -g @shipzone/npmci
+          pnpm install -g @ship.zone/npmci
           npmci npm prepare
 
       - name: Code quality

changelog.md

@@ -1,5 +1,98 @@
 # Changelog
 
+## 2026-02-27 - 2.0.31 - fix(deps)
+bump devDependencies and fix README license path
+
+- Bump @git.zone/tsbundle from ^2.8.3 to ^2.9.0
+- Bump @types/node from ^25.2.0 to ^25.3.2
+- Update documented dependency set/version to v2.0.30 in readme.hints.md
+- Fix README license file path from LICENSE to license in readme.md
+
+## 2026-02-02 - 2.0.30 - fix(config)
+update npmextra configuration and improve README: rename package keys, add release registry config, clarify waitUntilPresent timeout and notification/persistence behavior
+
+- Renamed npmextra keys: 'gitzone' → '@git.zone/cli' and 'tsdoc' → '@git.zone/tsdoc'
+- Added release configuration for @git.zone/cli including registries (verdaccio and npm) and accessLevel
+- Removed top-level 'npmci' section
+- Added new '@ship.zone/szci' entry with npmGlobalTools
+- README: added waitUntilPresent timeout example with error handling
+- README: clarified notifyChangeCumulative is debounced and documented persistence behavior (merge with defaults, atomic writes)
+- README: documented concurrency/race-condition safety and timeout support for waitUntilPresent
+
+## 2026-02-02 - 2.0.29 - fix(smartstate)
+prevent duplicate statepart creation and fix persistence/notification race conditions
+
+- Add pendingStatePartCreation map to deduplicate concurrent createStatePart calls
+- Adjust init handling so 'force' falls through to creation and concurrent creations are serialized
+- Merge persisted state with initial payload in 'persistent' initMode, with persisted values taking precedence
+- Persist to WebStore before updating in-memory state to ensure atomicity
+- Debounce cumulative notifications via pendingCumulativeNotification to avoid duplicate notifications
+- Log selector errors instead of silently swallowing exceptions
+- Add optional timeout to waitUntilPresent and ensure subscriptions and timeouts are cleaned up to avoid indefinite waits
+- Await setState when performing chained state updates to ensure ordering and avoid race conditions
+
+## 2026-02-02 - 2.0.28 - fix(deps)
+bump devDependencies and dependencies, add tsbundle build config, update docs, and reorganize tests
+
+- Bumped @git.zone/tsbuild to ^4.1.2, @git.zone/tsbundle to ^2.8.3, @git.zone/tsrun to ^2.0.1, @git.zone/tstest to ^3.1.8, and @types/node to ^25.2.0
+- Upgraded @push.rocks/smartjson to ^6.0.0
+- Added @git.zone/tsbundle bundle configuration to npmextra.json for building a dist bundle
+- Removed pnpm-workspace.yaml entries (cleaned workspace constraints)
+- Updated readme and readme.hints (docs formatting, version bumped to v2.0.28, issue reporting/security section and dependency list)
+- Reorganized tests: removed *.both.ts variants and added consolidated test files under test/ (test.ts, test.initialization.ts)
+
+## 2025-09-12 - 2.0.27 - fix(StatePart)
+Use stable JSON stringify for state hashing; update dependencies and tooling
+
+- Replace smartjson.stringify with smartjson.stableOneWayStringify when creating SHA256 state hashes to ensure deterministic hashing and avoid duplicate notifications for semantically identical states.
+- Bump runtime dependencies: @push.rocks/smarthash -> ^3.2.6, @push.rocks/smartjson -> ^5.2.0.
+- Bump dev tooling versions: @git.zone/tsbuild -> ^2.6.8, @git.zone/tsbundle -> ^2.5.1, @git.zone/tstest -> ^2.3.8.
+- Add local .claude/settings.local.json configuration for allowed permissions (local tooling/settings file).
+
+## 2025-08-16 - 2.0.26 - fix(ci)
+Add local Claude settings file to allow helper permissions for common local commands
+
+- Added .claude/settings.local.json to grant local helper permissions for tooling
+- Allowed commands: Bash(tsx:*), Bash(tstest test:*), Bash(git add:*), Bash(git tag:*)
+- No changes to source code or runtime behavior; tooling/config only
+
+## 2025-07-29 - 2.0.25 - fix(core)
+Major state initialization and validation improvements
+
+- Fixed state hash bug: Now properly compares hash values instead of storing state objects
+- Fixed state initialization merge order: Initial state now correctly takes precedence over stored state
+- Improved type safety: stateStore properly typed as potentially undefined
+- Simplified init mode logic with clear behavior for 'soft', 'mandatory', 'force', and 'persistent'
+- Added state validation with extensible validateState() method
+- Made notifyChange() async to support proper hash comparison
+- Enhanced select() to filter undefined states automatically
+- Added comprehensive test suite for state initialization scenarios
+- Updated documentation with clearer examples and improved readme
+
+## 2025-07-19 - 2.0.24 - fix(core)
+Multiple fixes and improvements
+
+- Fixed StateAction trigger method to properly return Promise<TStateType>
+- Updated CI workflows to use new container registry and npmci package name
+- Added pnpm workspace configuration for built-only dependencies
+
+## 2025-07-19 - 2.0.23 - fix(ci)
+Update CI workflows to use new container registry and npmci package name
+
+- Changed CI image from 'registry.gitlab.com/hosttoday/ht-docker-node:npmci' to 'code.foss.global/host.today/ht-docker-node:npmci'
+- Replaced npmci installation command from '@shipzone/npmci' to '@ship.zone/npmci' in workflow configurations
+
+## 2025-07-19 - 2.0.22 - fix(smartstate)
+Fix StateAction trigger method to properly return Promise
+
+- Fixed StateAction.trigger() to return Promise<TStateType> as expected
+- Updated readme with improved documentation and examples
+- Replaced outdated legal information with Task Venture Capital GmbH details
+- Added implementation notes in readme.hints.md
+
+## 2025-06-19 - 2.0.21 - maintenance
+General updates and improvements
+
 ## 2025-06-19 - 2.0.20 - fix(smartstate)
 Update build scripts and dependency versions; replace isohash with smarthashWeb for state hash generation
 

npmextra.json

@@ -1,9 +1,16 @@
 {
-  "npmci": {
-    "npmGlobalTools": [],
-    "npmAccessLevel": "public"
+  "@git.zone/tsbundle": {
+    "bundles": [
+      {
+        "from": "./ts/index.ts",
+        "to": "./dist_bundle/bundle.js",
+        "outputMode": "bundle",
+        "bundler": "esbuild",
+        "production": true
+      }
+    ]
   },
-  "gitzone": {
+  "@git.zone/cli": {
     "projectType": "npm",
     "module": {
       "githost": "code.foss.global",
@@ -24,9 +31,19 @@
         "asynchronous state",
         "cumulative notification"
       ]
+    },
+    "release": {
+      "registries": [
+        "https://verdaccio.lossless.digital",
+        "https://registry.npmjs.org"
+      ],
+      "accessLevel": "public"
     }
   },
-  "tsdoc": {
+  "@git.zone/tsdoc": {
     "legal": "\n## License and Legal Information\n\nThis repository contains open-source code that is licensed under the MIT License. A copy of the MIT License can be found in the [license](license) file within this repository. \n\n**Please note:** The MIT License does not grant permission to use the trade names, trademarks, service marks, or product names of the project, except as required for reasonable and customary use in describing the origin of the work and reproducing the content of the NOTICE file.\n\n### Trademarks\n\nThis project is owned and maintained by Task Venture Capital GmbH. The names and logos associated with Task Venture Capital GmbH and any related products or services are trademarks of Task Venture Capital GmbH and are not included within the scope of the MIT license granted herein. Use of these trademarks must comply with Task Venture Capital GmbH's Trademark Guidelines, and any usage must be approved in writing by Task Venture Capital GmbH.\n\n### Company Information\n\nTask Venture Capital GmbH  \nRegistered at District court Bremen HRB 35230 HB, Germany\n\nFor any legal inquiries or if you require further information, please contact us via email at hello@task.vc.\n\nBy using this repository, you acknowledge that you have read this section, agree to comply with its terms, and understand that the licensing of the code does not imply endorsement by Task Venture Capital GmbH of any derivative works.\n"
+  },
+  "@ship.zone/szci": {
+    "npmGlobalTools": []
   }
 }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@push.rocks/smartstate",
-  "version": "2.0.21",
+  "version": "2.0.31",
   "private": false,
   "description": "A package for handling and managing state in applications.",
   "main": "dist_ts/index.js",
@@ -14,17 +14,17 @@
     "buildDocs": "tsdoc"
   },
   "devDependencies": {
-    "@git.zone/tsbuild": "^2.6.4",
-    "@git.zone/tsbundle": "^2.4.0",
-    "@git.zone/tsrun": "^1.3.3",
-    "@git.zone/tstest": "^2.3.1",
+    "@git.zone/tsbuild": "^4.1.2",
+    "@git.zone/tsbundle": "^2.9.0",
+    "@git.zone/tsrun": "^2.0.1",
+    "@git.zone/tstest": "^3.1.8",
     "@push.rocks/tapbundle": "^6.0.3",
-    "@types/node": "^22.7.4"
+    "@types/node": "^25.3.2"
   },
   "dependencies": {
     "@push.rocks/lik": "^6.2.2",
-    "@push.rocks/smarthash": "^3.2.0",
-    "@push.rocks/smartjson": "^5.0.20",
+    "@push.rocks/smarthash": "^3.2.6",
+    "@push.rocks/smartjson": "^6.0.0",
     "@push.rocks/smartpromise": "^4.2.3",
     "@push.rocks/smartrx": "^3.0.10",
     "@push.rocks/webstore": "^2.0.20"

readme.hints.md

@@ -1 +1,60 @@
- 
+# Smartstate Implementation Notes
+
+## Current API (as of v2.0.28+)
+
+### State Part Initialization
+- State parts can be created with different init modes: 'soft' (default), 'mandatory', 'force', 'persistent'
+  - 'soft' - returns existing state part if exists, creates new if not
+  - 'mandatory' - requires state part to not exist, fails if it does
+  - 'force' - always creates new state part, overwriting any existing
+  - 'persistent' - like 'soft' but with WebStore persistence (IndexedDB)
+- Persistent mode automatically calls init() internally - no need to call it manually
+- State merge order fixed: initial state takes precedence over stored state
+
+### Actions
+- Actions are created with `createAction()` method
+- Two ways to dispatch actions:
+  1. `stateAction.trigger(payload)` - returns Promise<TStatePayload>
+  2. `await statePart.dispatchAction(stateAction, payload)` - returns Promise<TStatePayload>
+- Both methods return the same Promise, providing flexibility in usage
+
+### State Management Methods
+- `select()` - returns Observable with startWith current state, filters undefined states
+- `waitUntilPresent()` - waits for specific state condition
+- `stateSetup()` - async state initialization with cumulative defer
+- `notifyChangeCumulative()` - defers notification to end of call stack
+- `getState()` - returns current state or undefined
+- `setState()` - validates state before setting, notifies only on actual changes
+
+### State Hash Detection
+- Uses SHA256 hash to detect actual state changes
+- Fixed: Hash comparison now properly awaits async hash calculation
+- Prevents duplicate notifications for identical state values
+- `notifyChange()` is now async to support proper hash comparison
+
+### State Validation
+- Basic validation ensures state is not null/undefined
+- `validateState()` method can be overridden in subclasses for custom validation
+- Validation runs on both setState() and when loading from persistent storage
+
+### Type System
+- Can use either enums or string literal types for state part names
+- Test uses simple string types: `type TMyStateParts = 'testStatePart'`
+- State can be undefined initially, handled properly in select() and other methods
+
+## Recent Fixes (v2.0.24+)
+1. Fixed state hash bug - now properly compares hash values instead of promises
+2. Fixed state initialization merge order - initial state now takes precedence
+3. Ensured stateStore is properly typed as potentially undefined
+4. Simplified init mode logic with clear behavior for each mode
+5. Added state validation with extensible validateState() method
+6. Made notifyChange() async to support proper hash comparison
+7. Updated select() to filter undefined states
+
+## Dependency Versions (v2.0.30)
+- @git.zone/tsbuild: ^4.1.2
+- @git.zone/tsbundle: ^2.9.0
+- @git.zone/tsrun: ^2.0.1
+- @git.zone/tstest: ^3.1.8
+- @push.rocks/smartjson: ^6.0.0
+- @types/node: ^25.3.2

readme.md

@@ -1,23 +1,33 @@
 # @push.rocks/smartstate
-a package that handles state in a good way
+
+A powerful TypeScript library for elegant state management using RxJS and reactive programming patterns 🚀
+
+## Issue Reporting and Security
+
+For reporting bugs, issues, or security vulnerabilities, please visit [community.foss.global/](https://community.foss.global/). This is the central community hub for all issue reporting. Developers who sign and comply with our contribution agreement and go through identification can also get a [code.foss.global/](https://code.foss.global/) account to submit Pull Requests directly.
 
 ## Install
 
-To install `@push.rocks/smartstate`, you can use pnpm (Performant Node Package Manager). Run the following command in your terminal:
+To install `@push.rocks/smartstate`, you can use pnpm, npm, or yarn:
 
 ```bash
+# Using pnpm (recommended)
 pnpm install @push.rocks/smartstate --save
-```
 
-This will add `@push.rocks/smartstate` to your project's dependencies.
+# Using npm
+npm install @push.rocks/smartstate --save
+
+# Using yarn
+yarn add @push.rocks/smartstate
+```
 
 ## Usage
 
-The `@push.rocks/smartstate` library provides an elegant way to handle state within your JavaScript or TypeScript projects, leveraging the power of Reactive Extensions (RxJS) and a structured state management strategy. In the following sections, we will explore the comprehensive capabilities of this package and how to effectively use them in various scenarios, ensuring a robust state management pattern in your applications.
+The `@push.rocks/smartstate` library provides an elegant way to handle state within your JavaScript or TypeScript projects, leveraging the power of Reactive Extensions (RxJS) and a structured state management strategy.
 
 ### Getting Started
 
-First, let's import the necessary components from the library:
+Import the necessary components from the library:
 
 ```typescript
 import { Smartstate, StatePart, StateAction } from '@push.rocks/smartstate';
@@ -25,7 +35,7 @@ import { Smartstate, StatePart, StateAction } from '@push.rocks/smartstate';
 
 ### Creating a SmartState Instance
 
-`Smartstate` acts as the container for your state parts. You can consider it as the root of your state management structure.
+`Smartstate` acts as the container for your state parts. Think of it as the root of your state management structure:
 
 ```typescript
 const myAppSmartState = new Smartstate<YourStatePartNamesEnum>();
@@ -35,25 +45,29 @@ const myAppSmartState = new Smartstate<YourStatePartNamesEnum>();
 
 When creating state parts, you can specify different initialization modes:
 
-- **`'soft'`** - Allows existing state parts to remain (default behavior)
-- **`'mandatory'`** - Fails if there's an existing state part with the same name
-- **`'force'`** - Overwrites any existing state part
-- **`'persistent'`** - Enables WebStore persistence using IndexedDB
+| Mode | Description |
+|------|-------------|
+| `'soft'` | Default. Returns existing state part if it exists, creates new if not |
+| `'mandatory'` | Requires state part to not exist, throws error if it does |
+| `'force'` | Always creates new state part, overwriting any existing one |
+| `'persistent'` | Like 'soft' but with WebStore persistence using IndexedDB |
 
 ### Defining State Parts
 
-State parts represent separable sections of your state, making it easier to manage and modularize. For example, you may have a state part for user data and another for application settings. 
-
-Define an enum for state part names for better management:
+State parts represent separable sections of your state, making it easier to manage and modularize. Define state part names using either enums or string literal types:
 
 ```typescript
+// Option 1: Using enums
 enum AppStateParts {
-  UserState,
-  SettingsState
+  UserState = 'UserState',
+  SettingsState = 'SettingsState'
 }
+
+// Option 2: Using string literal types (simpler approach)
+type AppStateParts = 'UserState' | 'SettingsState';
 ```
 
-Now, let's create a state part within our `myAppSmartState` instance:
+Create a state part within your `Smartstate` instance:
 
 ```typescript
 interface IUserState {
@@ -66,24 +80,20 @@ const userStatePart = await myAppSmartState.getStatePart<IUserState>(
   { isLoggedIn: false }, // Initial state
   'soft' // Init mode (optional, defaults to 'soft')
 );
-
-// For persistent state parts, you must call init()
-if (mode === 'persistent') {
-  await userStatePart.init();
-}
 ```
 
 ### Subscribing to State Changes
 
-You can subscribe to changes in a state part to perform actions accordingly:
+Subscribe to changes in a state part to perform actions accordingly:
 
 ```typescript
+// The select() method automatically filters out undefined states
 userStatePart.select().subscribe((currentState) => {
   console.log(`User Logged In: ${currentState.isLoggedIn}`);
 });
 ```
 
-If you need to select a specific part of your state, you can pass a selector function:
+Select a specific part of your state with a selector function:
 
 ```typescript
 userStatePart.select(state => state.username).subscribe((username) => {
@@ -107,28 +117,55 @@ const loginUserAction = userStatePart.createAction<ILoginPayload>(async (statePa
 });
 
 // Dispatch the action to update the state
-await loginUserAction.trigger({ username: 'johnDoe' });
+const newState = await loginUserAction.trigger({ username: 'johnDoe' });
 ```
 
+### Dispatching Actions
+
+There are two ways to dispatch actions:
+
+```typescript
+// Method 1: Using trigger on the action (returns promise)
+const newState = await loginUserAction.trigger({ username: 'johnDoe' });
+
+// Method 2: Using dispatchAction on the state part (returns promise)
+const newState = await userStatePart.dispatchAction(loginUserAction, { username: 'johnDoe' });
+```
+
+Both methods return a Promise with the new state payload.
+
 ### Additional State Methods
 
 `StatePart` provides several useful methods for state management:
 
 ```typescript
-// Wait for a specific state condition
+// Get current state (may be undefined initially)
+const currentState = userStatePart.getState();
+if (currentState) {
+  console.log('Current user:', currentState.username);
+}
+
+// Wait for state to be present
 await userStatePart.waitUntilPresent();
 
+// Wait for a specific property to be present
+await userStatePart.waitUntilPresent(state => state.username);
+
+// Wait with a timeout (throws error if condition not met within timeout)
+try {
+  await userStatePart.waitUntilPresent(state => state.username, 5000); // 5 second timeout
+} catch (error) {
+  console.error('Timed out waiting for username');
+}
+
 // Setup initial state with async operations
-await userStatePart.stateSetup(async (state) => {
-  // Perform async initialization
+await userStatePart.stateSetup(async (statePart) => {
   const userData = await fetchUserData();
-  return { ...state, ...userData };
+  return { ...statePart.getState(), ...userData };
 });
 
-// Batch multiple state changes for cumulative notification
-userStatePart.notifyChangeCumulative(() => {
-  // Multiple state changes here will result in a single notification
-});
+// Defer notification to end of call stack (debounced)
+userStatePart.notifyChangeCumulative();
 ```
 
 ### Persistent State with WebStore
@@ -138,26 +175,43 @@ userStatePart.notifyChangeCumulative(() => {
 ```typescript
 const settingsStatePart = await myAppSmartState.getStatePart<ISettingsState>(
   AppStateParts.SettingsState,
-  { theme: 'light' }, // Initial state
+  { theme: 'light' }, // Initial/default state
   'persistent' // Mode
 );
-
-// Initialize the persistent state (required for persistent mode)
-await settingsStatePart.init();
 ```
 
 Persistent state automatically:
 - Saves state changes to IndexedDB
 - Restores state on application restart
-- Manages storage with configurable database and store names
+- Merges persisted values with defaults (persisted values take precedence)
+- Ensures atomic writes (persistence happens before memory update)
+
+### State Validation
+
+`Smartstate` includes built-in state validation to ensure data integrity:
+
+```typescript
+// Basic validation (built-in) ensures state is not null or undefined
+await userStatePart.setState(null); // Throws error: Invalid state structure
+
+// Custom validation by extending StatePart
+class ValidatedStatePart<T> extends StatePart<string, T> {
+  protected validateState(stateArg: any): stateArg is T {
+    return super.validateState(stateArg) && /* your validation */;
+  }
+}
+```
 
 ### Performance Optimization
 
-`Smartstate` includes built-in performance optimizations:
+`Smartstate` includes advanced performance optimizations:
 
-- **State Hash Detection**: Uses SHA256 hashing to detect actual state changes, preventing unnecessary notifications when state values haven't truly changed
-- **Cumulative Notifications**: Batch multiple state changes into a single notification using `notifyChangeCumulative()`
-- **Selective Subscriptions**: Use selectors to subscribe only to specific state properties
+- **🔒 Async State Hash Detection**: Uses SHA256 hashing to detect actual state changes, preventing unnecessary notifications when state values haven't truly changed
+- **🚫 Duplicate Prevention**: Identical state updates are automatically filtered out
+- **📦 Cumulative Notifications**: Batch multiple state changes into a single notification using `notifyChangeCumulative()` with automatic debouncing
+- **🎯 Selective Subscriptions**: Use selectors to subscribe only to specific state properties
+- **✨ Undefined State Filtering**: The `select()` method automatically filters out undefined states
+- **⚡ Concurrent Access Safety**: Prevents race conditions when multiple calls request the same state part simultaneously
 
 ### RxJS Integration
 
@@ -183,35 +237,95 @@ userStatePart.select(state => state.username)
   });
 ```
 
-### Comprehensive Usage
+### Complete Example
 
-Putting it all together, `@push.rocks/smartstate` offers a flexible and powerful pattern for managing application state. By modularizing state parts, subscribing to state changes, and controlling state modifications through actions, developers can maintain a clean and scalable architecture. Combining these strategies with persistent states unlocks the full potential for creating dynamic and user-friendly applications.
+Here's a comprehensive example showcasing the power of `@push.rocks/smartstate`:
 
-Key features:
-- **Type-safe state management** with full TypeScript support
-- **Reactive state updates** using RxJS observables
-- **Persistent state** with IndexedDB storage
-- **Performance optimized** with state hash detection
-- **Modular architecture** with separate state parts
-- **Action-based updates** for predictable state modifications
+```typescript
+import { Smartstate, StatePart, StateAction } from '@push.rocks/smartstate';
 
-For more complex scenarios, consider combining multiple state parts, creating hierarchical state structures, and integrating with other state management solutions as needed. With `@push.rocks/smartstate`, the possibilities are vast, empowering you to tailor the state management approach to fit the unique requirements of your project.
+// Define your state structure
+type AppStateParts = 'user' | 'settings' | 'cart';
+
+interface IUserState {
+  isLoggedIn: boolean;
+  username?: string;
+  email?: string;
+}
+
+interface ICartState {
+  items: Array<{ id: string; quantity: number }>;
+  total: number;
+}
+
+// Create the smartstate instance
+const appState = new Smartstate<AppStateParts>();
+
+// Initialize state parts
+const userState = await appState.getStatePart<IUserState>('user', {
+  isLoggedIn: false
+});
+
+const cartState = await appState.getStatePart<ICartState>('cart', {
+  items: [],
+  total: 0
+}, 'persistent'); // Persists across sessions
+
+// Create actions
+const loginAction = userState.createAction<{ username: string; email: string }>(
+  async (statePart, payload) => {
+    // Simulate API call
+    await new Promise(resolve => setTimeout(resolve, 1000));
+
+    return {
+      isLoggedIn: true,
+      username: payload.username,
+      email: payload.email
+    };
+  }
+);
+
+// Subscribe to changes
+userState.select(state => state.isLoggedIn).subscribe(isLoggedIn => {
+  console.log('Login status changed:', isLoggedIn);
+});
+
+// Dispatch actions
+await loginAction.trigger({ username: 'john', email: 'john@example.com' });
+```
+
+## Key Features
+
+| Feature | Description |
+|---------|-------------|
+| 🎯 **Type-safe** | Full TypeScript support with intelligent type inference |
+| ⚡ **Performance optimized** | Async state hash detection prevents unnecessary re-renders |
+| 💾 **Persistent state** | Built-in IndexedDB support for state persistence |
+| 🔄 **Reactive** | Powered by RxJS for elegant async handling |
+| 🧩 **Modular** | Organize state into logical, reusable parts |
+| ✅ **Validated** | Built-in state validation with extensible validation logic |
+| 🎭 **Flexible init modes** | Choose how state parts are initialized |
+| 📦 **Zero config** | Works out of the box with sensible defaults |
+| 🛡️ **Race condition safe** | Concurrent state part creation is handled safely |
+| ⏱️ **Timeout support** | `waitUntilPresent` supports optional timeouts |
 
 ## License and Legal Information
 
-This repository contains open-source code that is licensed under the MIT License. A copy of the MIT License can be found in the [license](license) file within this repository. 
+This repository contains open-source code licensed under the MIT License. A copy of the license can be found in the [license](./license) file.
 
 **Please note:** The MIT License does not grant permission to use the trade names, trademarks, service marks, or product names of the project, except as required for reasonable and customary use in describing the origin of the work and reproducing the content of the NOTICE file.
 
 ### Trademarks
 
-This project is owned and maintained by Lossless GmbH. The names and logos associated with Lossless GmbH and any related products or services are trademarks of Lossless GmbH and are not included within the scope of the MIT license granted herein. Use of these trademarks must comply with Lossless GmbH's Trademark Guidelines, and any usage must be approved in writing by Lossless GmbH.
+This project is owned and maintained by Task Venture Capital GmbH. The names and logos associated with Task Venture Capital GmbH and any related products or services are trademarks of Task Venture Capital GmbH or third parties, and are not included within the scope of the MIT license granted herein.
+
+Use of these trademarks must comply with Task Venture Capital GmbH's Trademark Guidelines or the guidelines of the respective third-party owners, and any usage must be approved in writing. Third-party trademarks used herein are the property of their respective owners and used only in a descriptive manner, e.g. for an implementation of an API or similar.
 
 ### Company Information
 
-Lossless GmbH  
-Registered at District court Bremen HRB 35230 HB, Germany
+Task Venture Capital GmbH
+Registered at District Court Bremen HRB 35230 HB, Germany
 
-For any legal inquiries or if you require further information, please contact us via email at hello@lossless.com.
+For any legal inquiries or further information, please contact us via email at hello@task.vc.
 
-By using this repository, you acknowledge that you have read this section, agree to comply with its terms, and understand that the licensing of the code does not imply endorsement by Lossless GmbH of any derivative works.
+By using this repository, you acknowledge that you have read this section, agree to comply with its terms, and understand that the licensing of the code does not imply endorsement by Task Venture Capital GmbH of any derivative works.

test/test.initialization.ts

@@ -0,0 +1,157 @@
+import { expect, tap } from '@push.rocks/tapbundle';
+import * as smartstate from '../ts/index.js';
+
+type TTestStateParts = 'initTest' | 'persistTest' | 'forceTest';
+
+interface ITestState {
+  value: number;
+  nested: {
+    data: string;
+  };
+}
+
+tap.test('should handle soft init mode (default)', async () => {
+  const state = new smartstate.Smartstate<TTestStateParts>();
+  
+  // First creation
+  const statePart1 = await state.getStatePart<ITestState>('initTest', {
+    value: 1,
+    nested: { data: 'initial' }
+  });
+  expect(statePart1.getState()).toEqual({
+    value: 1,
+    nested: { data: 'initial' }
+  });
+  
+  // Second call should return existing
+  const statePart2 = await state.getStatePart<ITestState>('initTest');
+  expect(statePart1).toEqual(statePart2);
+});
+
+tap.test('should handle mandatory init mode', async () => {
+  const state = new smartstate.Smartstate<TTestStateParts>();
+  
+  // First creation should succeed
+  const statePart1 = await state.getStatePart<ITestState>('initTest', {
+    value: 1,
+    nested: { data: 'initial' }
+  }, 'mandatory');
+  expect(statePart1).toBeInstanceOf(smartstate.StatePart);
+  
+  // Second call with mandatory should fail
+  let error: Error | null = null;
+  try {
+    await state.getStatePart<ITestState>('initTest', {
+      value: 2,
+      nested: { data: 'second' }
+    }, 'mandatory');
+  } catch (e) {
+    error = e as Error;
+  }
+  expect(error).not.toBeNull();
+  expect(error?.message).toMatch(/already exists.*mandatory/);
+});
+
+tap.test('should handle force init mode', async () => {
+  const state = new smartstate.Smartstate<TTestStateParts>();
+  
+  // First creation
+  const statePart1 = await state.getStatePart<ITestState>('forceTest', {
+    value: 1,
+    nested: { data: 'initial' }
+  });
+  expect(statePart1.getState()?.value).toEqual(1);
+  
+  // Force should create new state part
+  const statePart2 = await state.getStatePart<ITestState>('forceTest', {
+    value: 2,
+    nested: { data: 'forced' }
+  }, 'force');
+  expect(statePart2.getState()?.value).toEqual(2);
+  expect(statePart1).not.toEqual(statePart2);
+});
+
+tap.test('should handle missing initial state error', async () => {
+  const state = new smartstate.Smartstate<TTestStateParts>();
+  
+  let error: Error | null = null;
+  try {
+    await state.getStatePart<ITestState>('initTest');
+  } catch (e) {
+    error = e as Error;
+  }
+  expect(error).not.toBeNull();
+  expect(error?.message).toMatch(/does not exist.*no initial state/);
+});
+
+tap.test('should handle state validation', async () => {
+  const state = new smartstate.Smartstate<TTestStateParts>();
+  
+  const statePart = await state.getStatePart<ITestState>('initTest', {
+    value: 1,
+    nested: { data: 'initial' }
+  });
+  
+  // Setting null should fail validation
+  let error: Error | null = null;
+  try {
+    await statePart.setState(null as any);
+  } catch (e) {
+    error = e as Error;
+  }
+  expect(error).not.toBeNull();
+  expect(error?.message).toMatch(/Invalid state structure/);
+});
+
+tap.test('should handle undefined state in select', async () => {
+  const state = new smartstate.Smartstate<TTestStateParts>();
+  const statePart = new smartstate.StatePart<TTestStateParts, ITestState>('initTest');
+  
+  // Select should filter out undefined states
+  const values: (ITestState | undefined)[] = [];
+  statePart.select().subscribe(val => values.push(val));
+  
+  // Initially undefined, should not emit
+  expect(values).toHaveLength(0);
+  
+  // After setting state, should emit
+  await statePart.setState({
+    value: 1,
+    nested: { data: 'test' }
+  });
+  
+  expect(values).toHaveLength(1);
+  expect(values[0]).toEqual({
+    value: 1,
+    nested: { data: 'test' }
+  });
+});
+
+tap.test('should not notify on duplicate state', async () => {
+  const state = new smartstate.Smartstate<TTestStateParts>();
+  const statePart = await state.getStatePart<ITestState>('initTest', {
+    value: 1,
+    nested: { data: 'initial' }
+  });
+  
+  let notificationCount = 0;
+  // Use select() to get initial value + changes
+  statePart.select().subscribe(() => notificationCount++);
+  
+  // Should have received initial state
+  expect(notificationCount).toEqual(1);
+  
+  // Set same state multiple times
+  await statePart.setState({ value: 1, nested: { data: 'initial' } });
+  await statePart.setState({ value: 1, nested: { data: 'initial' } });
+  await statePart.setState({ value: 1, nested: { data: 'initial' } });
+  
+  // Should still be 1 (no new notifications for duplicate state)
+  expect(notificationCount).toEqual(1);
+  
+  // Change state should notify
+  await statePart.setState({ value: 2, nested: { data: 'changed' } });
+  expect(notificationCount).toEqual(2);
+});
+
+export default tap.start();

test/test.ts

@@ -55,4 +55,4 @@ tap.test('should dispatch a state action', async (tools) => {
   await done.promise;
 });
 
-tap.start();
+export default tap.start();

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartstate',
-  version: '2.0.20',
+  version: '2.0.31',
   description: 'A package for handling and managing state in applications.'
 }

ts/smartstate.classes.smartstate.ts

@@ -9,13 +9,16 @@ export type TInitMode = 'soft' | 'mandatory' | 'force' | 'persistent';
 export class Smartstate<StatePartNameType extends string> {
   public statePartMap: { [key in StatePartNameType]?: StatePart<StatePartNameType, any> } = {};
 
+  private pendingStatePartCreation: Map<string, Promise<StatePart<StatePartNameType, any>>> = new Map();
+
   constructor() {}
 
   /**
    * Allows getting and initializing a new statepart
-   * initMode === 'soft' it will allow existing stateparts
-   * initMode === 'mandatory' will fail if there is an existing statepart
-   * initMode === 'force' will overwrite any existing statepart
+   * initMode === 'soft' (default) - returns existing statepart if exists, creates new if not
+   * initMode === 'mandatory' - requires statepart to not exist, fails if it does
+   * initMode === 'force' - always creates new statepart, overwriting any existing
+   * initMode === 'persistent' - like 'soft' but with webstore persistence
    * @param statePartNameArg
    * @param initialArg
    * @param initMode
@@ -23,22 +26,48 @@ export class Smartstate<StatePartNameType extends string> {
   public async getStatePart<PayloadType>(
     statePartNameArg: StatePartNameType,
     initialArg?: PayloadType,
-    initMode?: TInitMode
+    initMode: TInitMode = 'soft'
   ): Promise<StatePart<StatePartNameType, PayloadType>> {
-    if (this.statePartMap[statePartNameArg]) {
-      if (initialArg && (!initMode || initMode !== 'soft')) {
-        throw new Error(
-          `${statePartNameArg} already exists, yet you try to set an initial state again`
-        );
+    // Return pending creation if one exists to prevent duplicate state parts
+    const pending = this.pendingStatePartCreation.get(statePartNameArg);
+    if (pending) {
+      return pending as Promise<StatePart<StatePartNameType, PayloadType>>;
+    }
+
+    const existingStatePart = this.statePartMap[statePartNameArg];
+
+    if (existingStatePart) {
+      switch (initMode) {
+        case 'mandatory':
+          throw new Error(
+            `State part '${statePartNameArg}' already exists, but initMode is 'mandatory'`
+          );
+        case 'force':
+          // Force mode: create new state part
+          break; // Fall through to creation
+        case 'soft':
+        case 'persistent':
+        default:
+          // Return existing state part
+          return existingStatePart as StatePart<StatePartNameType, PayloadType>;
       }
-      return this.statePartMap[statePartNameArg] as StatePart<StatePartNameType, PayloadType>;
     } else {
+      // State part doesn't exist
       if (!initialArg) {
         throw new Error(
-          `${statePartNameArg} does not yet exist, yet you don't provide an initial state`
+          `State part '${statePartNameArg}' does not exist and no initial state provided`
         );
       }
-      return this.createStatePart<PayloadType>(statePartNameArg, initialArg, initMode);
+    }
+
+    const creationPromise = this.createStatePart<PayloadType>(statePartNameArg, initialArg, initMode);
+    this.pendingStatePartCreation.set(statePartNameArg, creationPromise);
+
+    try {
+      const result = await creationPromise;
+      return result;
+    } finally {
+      this.pendingStatePartCreation.delete(statePartNameArg);
     }
   }
 
@@ -46,11 +75,12 @@ export class Smartstate<StatePartNameType extends string> {
    * Creates a statepart
    * @param statePartName
    * @param initialPayloadArg
+   * @param initMode
    */
   private async createStatePart<PayloadType>(
     statePartName: StatePartNameType,
     initialPayloadArg: PayloadType,
-    initMode?: TInitMode
+    initMode: TInitMode = 'soft'
   ): Promise<StatePart<StatePartNameType, PayloadType>> {
     const newState = new StatePart<StatePartNameType, PayloadType>(
       statePartName,
@@ -63,10 +93,18 @@ export class Smartstate<StatePartNameType extends string> {
     );
     await newState.init();
     const currentState = newState.getState();
-    await newState.setState({
-      ...initialPayloadArg,
-      ...currentState,
-    });
+
+    if (initMode === 'persistent' && currentState !== undefined) {
+      // Persisted state exists - merge with defaults, persisted values take precedence
+      await newState.setState({
+        ...initialPayloadArg,
+        ...currentState,
+      });
+    } else {
+      // No persisted state or non-persistent mode
+      await newState.setState(initialPayloadArg);
+    }
+
     this.statePartMap[statePartName] = newState;
     return newState;
   }

ts/smartstate.classes.stateaction.ts

@@ -14,7 +14,7 @@ export class StateAction<TStateType, TActionPayloadType> {
     public actionDef: IActionDef<TStateType, TActionPayloadType>
   ) {}
 
-  public trigger(payload: TActionPayloadType) {
-    this.statePartRef.dispatchAction(this, payload);
+  public trigger(payload: TActionPayloadType): Promise<TStateType> {
+    return this.statePartRef.dispatchAction(this, payload);
   }
 }

ts/smartstate.classes.statepart.ts

@@ -4,9 +4,11 @@ import { StateAction, type IActionDef } from './smartstate.classes.stateaction.j
 export class StatePart<TStatePartName, TStatePayload> {
   public name: TStatePartName;
   public state = new plugins.smartrx.rxjs.Subject<TStatePayload>();
-  public stateStore: TStatePayload;
+  public stateStore: TStatePayload | undefined;
   private cumulativeDeferred = plugins.smartpromise.cumulativeDefer();
 
+  private pendingCumulativeNotification: ReturnType<typeof setTimeout> | null = null;
+
   private webStoreOptions: plugins.webstore.IWebStoreOptions;
   private webStore: plugins.webstore.WebStore<TStatePayload> | null = null; // Add WebStore instance
 
@@ -27,9 +29,9 @@ export class StatePart<TStatePartName, TStatePayload> {
       this.webStore = new plugins.webstore.WebStore<TStatePayload>(this.webStoreOptions);
       await this.webStore.init();
       const storedState = await this.webStore.get(String(this.name));
-      if (storedState) {
+      if (storedState && this.validateState(storedState)) {
         this.stateStore = storedState;
-        this.notifyChange();
+        await this.notifyChange();
       }
     }
   }
@@ -37,7 +39,7 @@ export class StatePart<TStatePartName, TStatePayload> {
   /**
    * gets the state from the state store
    */
-  public getState(): TStatePayload {
+  public getState(): TStatePayload | undefined {
     return this.stateStore;
   }
 
@@ -46,31 +48,51 @@ export class StatePart<TStatePartName, TStatePayload> {
    * @param newStateArg
    */
   public async setState(newStateArg: TStatePayload) {
-    this.stateStore = newStateArg;
-    this.notifyChange();
-    
-    // Save state to WebStore if initialized
+    // Validate state structure
+    if (!this.validateState(newStateArg)) {
+      throw new Error(`Invalid state structure for state part '${this.name}'`);
+    }
+
+    // Save to WebStore first to ensure atomicity - if save fails, memory state remains unchanged
     if (this.webStore) {
       await this.webStore.set(String(this.name), newStateArg);
     }
+
+    // Update in-memory state after successful persistence
+    this.stateStore = newStateArg;
+    await this.notifyChange();
+
     return this.stateStore;
   }
 
+  /**
+   * Validates state structure - can be overridden for custom validation
+   * @param stateArg
+   */
+  protected validateState(stateArg: any): stateArg is TStatePayload {
+    // Basic validation - ensure state is not null/undefined
+    // Subclasses can override for more specific validation
+    return stateArg !== null && stateArg !== undefined;
+  }
+
   /**
    * notifies of a change on the state
    */
-  public notifyChange() {
-    const createStateHash = (stateArg: any) => {
-      return plugins.smarthashWeb.sha256FromString(plugins.smartjson.stringify(stateArg));
+  public async notifyChange() {
+    if (!this.stateStore) {
+      return;
+    }
+    const createStateHash = async (stateArg: any) => {
+      return await plugins.smarthashWeb.sha256FromString(plugins.smartjson.stableOneWayStringify(stateArg));
     };
+    const currentHash = await createStateHash(this.stateStore);
     if (
-      this.stateStore &&
       this.lastStateNotificationPayloadHash &&
-      createStateHash(this.stateStore) === this.lastStateNotificationPayloadHash
+      currentHash === this.lastStateNotificationPayloadHash
     ) {
       return;
     } else {
-      this.lastStateNotificationPayloadHash = this.stateStore;
+      this.lastStateNotificationPayloadHash = currentHash;
     }
     this.state.next(this.stateStore);
   }
@@ -80,8 +102,17 @@ export class StatePart<TStatePartName, TStatePayload> {
    * creates a cumulative notification by adding a change notification at the end of the call stack;
    */
   public notifyChangeCumulative() {
-    // TODO: check viability
-    setTimeout(() => this.state.next(this.stateStore), 0);
+    // Debounce: clear any pending notification
+    if (this.pendingCumulativeNotification) {
+      clearTimeout(this.pendingCumulativeNotification);
+    }
+
+    this.pendingCumulativeNotification = setTimeout(async () => {
+      this.pendingCumulativeNotification = null;
+      if (this.stateStore) {
+        await this.notifyChange();
+      }
+    }, 0);
   }
 
   /**
@@ -95,11 +126,13 @@ export class StatePart<TStatePartName, TStatePayload> {
     }
     const mapped = this.state.pipe(
       plugins.smartrx.rxjs.ops.startWith(this.getState()),
+      plugins.smartrx.rxjs.ops.filter((stateArg): stateArg is TStatePayload => stateArg !== undefined),
       plugins.smartrx.rxjs.ops.map((stateArg) => {
         try {
           return selectorFn(stateArg);
         } catch (e) {
-          // Nothing here
+          console.error(`Selector error in state part '${this.name}':`, e);
+          return undefined;
         }
       })
     );
@@ -128,20 +161,41 @@ export class StatePart<TStatePartName, TStatePayload> {
   /**
    * waits until a certain part of the state becomes available
    * @param selectorFn
+   * @param timeoutMs - optional timeout in milliseconds to prevent indefinite waiting
    */
   public async waitUntilPresent<T = TStatePayload>(
-    selectorFn?: (state: TStatePayload) => T
+    selectorFn?: (state: TStatePayload) => T,
+    timeoutMs?: number
   ): Promise<T> {
     const done = plugins.smartpromise.defer<T>();
     const selectedObservable = this.select(selectorFn);
-    const subscription = selectedObservable.subscribe(async (value) => {
-      if (value) {
+    let resolved = false;
+
+    const subscription = selectedObservable.subscribe((value) => {
+      if (value && !resolved) {
+        resolved = true;
         done.resolve(value);
       }
     });
-    const result = await done.promise;
-    subscription.unsubscribe();
-    return result;
+
+    let timeoutId: ReturnType<typeof setTimeout> | undefined;
+    if (timeoutMs) {
+      timeoutId = setTimeout(() => {
+        if (!resolved) {
+          resolved = true;
+          subscription.unsubscribe();
+          done.reject(new Error(`waitUntilPresent timed out after ${timeoutMs}ms`));
+        }
+      }, timeoutMs);
+    }
+
+    try {
+      const result = await done.promise;
+      return result;
+    } finally {
+      subscription.unsubscribe();
+      if (timeoutId) clearTimeout(timeoutId);
+    }
   }
 
   /**
@@ -152,6 +206,6 @@ export class StatePart<TStatePartName, TStatePayload> {
   ) {
     const resultPromise = funcArg(this);
     this.cumulativeDeferred.addPromise(resultPromise);
-    this.setState(await resultPromise);
+    await this.setState(await resultPromise);
   }
 }