3.0.40

.gitlab-ci.yml

@@ -1,140 +0,0 @@
-# gitzone ci_default
-image: registry.gitlab.com/hosttoday/ht-docker-node:npmci
-
-cache:
-  paths:
-    - .npmci_cache/
-  key: '$CI_BUILD_STAGE'
-
-stages:
-  - security
-  - test
-  - release
-  - metadata
-
-before_script:
-  - npm install -g @shipzone/npmci
-
-# ====================
-# security stage
-# ====================
-mirror:
-  stage: security
-  script:
-    - npmci git mirror
-  only:
-    - tags
-  tags:
-    - lossless
-    - docker
-    - notpriv
-
-auditProductionDependencies:
-  image: registry.gitlab.com/hosttoday/ht-docker-node:npmci
-  stage: security
-  script:
-    - npmci npm prepare
-    - npmci command npm install --production --ignore-scripts
-    - npmci command npm config set registry https://registry.npmjs.org
-    - npmci command npm audit --audit-level=high --only=prod --production
-  tags:
-    - docker
-  allow_failure: true
-
-auditDevDependencies:
-  image: registry.gitlab.com/hosttoday/ht-docker-node:npmci
-  stage: security
-  script:
-    - npmci npm prepare
-    - npmci command npm install --ignore-scripts
-    - npmci command npm config set registry https://registry.npmjs.org
-    - npmci command npm audit --audit-level=high --only=dev
-  tags:
-    - docker
-  allow_failure: true
-
-# ====================
-# test stage
-# ====================
-
-testStable:
-  stage: test
-  script:
-    - npmci npm prepare
-    - npmci node install stable
-    - npmci npm install
-    - npmci npm test
-  coverage: /\d+.?\d+?\%\s*coverage/
-  tags:
-    - docker
-
-testBuild:
-  stage: test
-  script:
-    - npmci npm prepare
-    - npmci node install stable
-    - npmci npm install
-    - npmci command npm run build
-  coverage: /\d+.?\d+?\%\s*coverage/
-  tags:
-    - docker
-
-release:
-  stage: release
-  script:
-    - npmci node install stable
-    - npmci npm publish
-  only:
-    - tags
-  tags:
-    - lossless
-    - docker
-    - notpriv
-
-# ====================
-# metadata stage
-# ====================
-codequality:
-  stage: metadata
-  allow_failure: true
-  only:
-    - tags
-  script:
-    - npmci command npm install -g typescript
-    - npmci npm prepare
-    - npmci npm install
-  tags:
-    - lossless
-    - docker
-    - priv
-
-trigger:
-  stage: metadata
-  script:
-    - npmci trigger
-  only:
-    - tags
-  tags:
-    - lossless
-    - docker
-    - notpriv
-
-pages:
-  stage: metadata
-  script:
-    - npmci node install lts
-    - npmci command npm install -g @git.zone/tsdoc
-    - npmci npm prepare
-    - npmci npm install
-    - npmci command tsdoc
-  tags:
-    - lossless
-    - docker
-    - notpriv
-  only:
-    - tags
-  artifacts:
-    expire_in: 1 week
-    paths:
-      - public
-  allow_failure: true

assets/denoentry.ts

@@ -1 +0,0 @@
-console.log('Hello from deno');

npmextra.json

@@ -9,27 +9,27 @@
       "githost": "code.foss.global",
       "gitscope": "push.rocks",
       "gitrepo": "smartstream",
-      "description": "simplifies access to node streams",
+      "description": "A library to simplify the creation and manipulation of Node.js streams, providing utilities for handling transform, duplex, and readable/writable streams effectively in TypeScript.",
       "npmPackagename": "@push.rocks/smartstream",
       "license": "MIT",
       "keywords": [
+        "stream",
         "node.js",
-        "streams",
+        "typescript",
         "stream manipulation",
-        "pipeline",
         "data processing",
+        "pipeline",
         "async transformation",
         "event handling",
-        "backpressure management",
+        "backpressure",
-        "readable streams",
+        "readable stream",
-        "writable streams",
+        "writable stream",
-        "duplex streams",
+        "duplex stream",
-        "transform streams",
+        "transform stream",
         "file streaming",
-        "buffer streams",
+        "buffer",
         "stream utilities",
-        "stream intake",
+        "esm"
-        "stream output"
       ]
     }
   },

package.json

@@ -1,39 +1,40 @@
 {
   "name": "@push.rocks/smartstream",
-  "version": "3.0.35",
+  "version": "3.0.40",
   "private": false,
-  "description": "simplifies access to node streams",
+  "description": "A library to simplify the creation and manipulation of Node.js streams, providing utilities for handling transform, duplex, and readable/writable streams effectively in TypeScript.",
-  "main": "dist_ts/index.js",
-  "typings": "dist_ts/index.d.ts",
   "type": "module",
+  "exports": {
+    ".": "./dist_ts/index.js",
+    "./web": "./dist_ts_web/index.js"
+  },
   "scripts": {
     "test": "(tstest test/)",
-    "build": "(tsbuild)",
+    "build": "(tsbuild tsfolders --web --allowimplicitany)"
-    "buildDocs": "tsdoc"
   },
   "repository": {
     "type": "git",
-    "url": "git+https://gitlab.com/push.rocks/smartstream.git"
+    "url": "https://code.foss.global/push.rocks/smartstream.git"
   },
   "author": "Lossless GmbH",
   "license": "MIT",
   "bugs": {
     "url": "https://gitlab.com/push.rocks/smartstream/issues"
   },
-  "homepage": "https://gitlab.com/push.rocks/smartstream#readme",
+  "homepage": "https://code.foss.global/push.rocks/smartstream",
   "devDependencies": {
-    "@git.zone/tsbuild": "^2.1.72",
+    "@git.zone/tsbuild": "^2.1.80",
     "@git.zone/tsrun": "^1.2.44",
-    "@git.zone/tstest": "^1.0.88",
+    "@git.zone/tstest": "^1.0.90",
-    "@push.rocks/smartfile": "^11.0.4",
+    "@push.rocks/smartfile": "^11.0.15",
-    "@push.rocks/tapbundle": "^5.0.17",
+    "@push.rocks/tapbundle": "^5.0.23",
-    "@types/node": "^20.11.28"
+    "@types/node": "^20.12.12"
   },
   "dependencies": {
-    "@push.rocks/lik": "^6.0.14",
+    "@push.rocks/lik": "^6.0.15",
+    "@push.rocks/smartenv": "^5.0.12",
     "@push.rocks/smartpromise": "^4.0.3",
-    "@push.rocks/smartrx": "^3.0.7",
+    "@push.rocks/smartrx": "^3.0.7"
-    "@push.rocks/webstream": "^1.0.8"
   },
   "browserslist": [
     "last 1 chrome versions"
@@ -51,22 +52,22 @@
     "readme.md"
   ],
   "keywords": [
+    "stream",
     "node.js",
-    "streams",
+    "typescript",
     "stream manipulation",
-    "pipeline",
     "data processing",
+    "pipeline",
     "async transformation",
     "event handling",
-    "backpressure management",
+    "backpressure",
-    "readable streams",
+    "readable stream",
-    "writable streams",
+    "writable stream",
-    "duplex streams",
+    "duplex stream",
-    "transform streams",
+    "transform stream",
     "file streaming",
-    "buffer streams",
+    "buffer",
     "stream utilities",
-    "stream intake",
+    "esm"
-    "stream output"
   ]
 }

readme.hints.md

@@ -1 +1 @@
- 
+ - make sure to respect backpressure handling.

readme.md

@@ -1,5 +1,6 @@
+```markdown
 # @push.rocks/smartstream
-simplifies access to node streams
+A TypeScript library to simplify the creation and manipulation of Node.js streams, providing utilities for transform, duplex, and readable/writable stream handling while managing backpressure effectively.
 
 ## Install
 To install `@push.rocks/smartstream`, you can use npm or yarn as follows:
@@ -14,7 +15,7 @@ This will add `@push.rocks/smartstream` to your project's dependencies.
 
 ## Usage
 
-The `@push.rocks/smartstream` module is designed to simplify working with Node.js streams by providing a set of utilities for creating and manipulating streams. This module makes heavy use of TypeScript for improved code quality, readability, and maintenance. ESM syntax is utilized throughout the examples.
+The `@push.rocks/smartstream` module is designed to simplify working with Node.js streams by providing a set of utilities for creating and manipulating streams. This module makes extensive use of TypeScript for improved code quality, readability, and maintenance. ESM syntax is utilized throughout the examples.
 
 ### Importing the Module
 
@@ -24,6 +25,12 @@ Start by importing the module into your TypeScript file:
 import * as smartstream from '@push.rocks/smartstream';
 ```
 
+For a more specific import, you may do the following:
+
+```typescript
+import { SmartDuplex, StreamWrapper, StreamIntake, createTransformFunction, createPassThrough } from '@push.rocks/smartstream';
+```
+
 ### Creating Basic Transform Streams
 
 The module provides utilities for creating transform streams. For example, to create a transform stream that modifies chunks of data, you can use the `createTransformFunction` utility:
@@ -58,7 +65,7 @@ const processDataDuplex = new SmartDuplex({
 sourceStream.pipe(processDataDuplex).pipe(destinationStream);
 ```
 
-### Stream Combiners
+### Combining Multiple Streams
 
 `Smartstream` facilitates easy combining of multiple streams into a single pipeline, handling errors and cleanup automatically. Here's how you can combine multiple streams:
 
@@ -101,7 +108,7 @@ Consider a scenario where you need to process a large CSV file, transform the da
 ```typescript
 import { SmartDuplex, createTransformFunction } from '@push.rocks/smartstream';
 import fs from 'fs';
-import csvParser from 'csv-parser'; // Assume this is a CSV parsing library
+import csvParser from 'csv-parser';
 
 const csvReadTransform = createTransformFunction<any, any>(async (row) => {
   // Process row
@@ -121,11 +128,232 @@ fs.createReadStream('path/to/largeFile.csv')
 
 This example demonstrates reading a large CSV file, transforming each row with `createTransformFunction`, and using a `SmartDuplex` to manage the processed data flow efficiently, ensuring no data is lost due to backpressure issues.
 
-### Conclusion
+### Advanced Use Case: Backpressure Handling
 
-`@push.rocks/smartstream` offers a robust set of tools for working with Node.js streams, providing a more intuitive and reliable way to create, manipulate, and combine streams. By leveraging TypeScript and ESM syntax, `smartstream` enables developers to build more maintainable and type-safe stream-based solutions.
+Effective backpressure handling is crucial when working with streams to avoid overwhelming the downstream consumers. Here’s a comprehensive example that demonstrates handling backpressure in a pipeline with multiple `SmartDuplex` instances:
+
+```typescript
+import { SmartDuplex } from '@push.rocks/smartstream';
+
+// Define the first SmartDuplex, which writes data slowly to simulate backpressure
+const slowProcessingStream = new SmartDuplex({
+  name: 'SlowProcessor',
+  objectMode: true,
+  writeFunction: async (chunk, { push }) => {
+    await new Promise(resolve => setTimeout(resolve, 100)); // Simulated delay
+    console.log('Processed chunk:', chunk);
+    push(chunk);
+  }
+});
+
+// Define the second SmartDuplex as a fast processor
+const fastProcessingStream = new SmartDuplex({
+  name: 'FastProcessor',
+  objectMode: true,
+  writeFunction: async (chunk, { push }) => {
+    console.log('Fast processing chunk:', chunk);
+    push(chunk);
+  }
+});
+
+// Create a StreamIntake to dynamically handle incoming data
+const streamIntake = new StreamIntake<string>();
+
+// Chain the streams together and handle the backpressure scenario
+streamIntake
+  .pipe(fastProcessingStream)
+  .pipe(slowProcessingStream)
+  .pipe(createPassThrough()) // Use Pass-Through to provide intermediary handling
+  .on('data', data => console.log('Final output:', data))
+  .on('error', error => console.error('Stream encountered an error:', error));
+
+// Simulate data pushing with intervals to observe backpressure handling
+let counter = 0;
+const interval = setInterval(() => {
+  if (counter >= 10) {
+    streamIntake.signalEnd();
+    clearInterval(interval);
+  } else {
+    streamIntake.pushData(`Chunk ${counter}`);
+    counter++;
+  }
+}, 50);
+```
+
+In this advanced use case, a `SlowProcessor` and `FastProcessor` are created using `SmartDuplex`, simulating a situation where one stream is slower than another. The `StreamIntake` dynamically handles incoming chunks of data and the intermediary Pass-Through handles any potential interruptions.
+
+### Transform Streams in Parallel
+
+For scenarios where you need to process data in parallel:
+
+```typescript
+import { SmartDuplex, createTransformFunction } from '@push.rocks/smartstream';
+
+const parallelTransform = createTransformFunction<any, any>(async (chunk) => {
+  // Parallel Processing
+  const results = await Promise.all(chunk.map(async item => await processItem(item)));
+  return results;
+});
+
+const streamIntake = new StreamIntake<any[]>();
+
+streamIntake
+  .pipe(parallelTransform)
+  .pipe(new SmartDuplex({
+    async writeFunction(chunk, { push }) {
+      console.log('Processed parallel chunk:', chunk);
+      push(chunk);
+    }
+  }))
+  .on('finish', () => console.log('Parallel processing completed.'));
+
+// Simulate data pushing
+streamIntake.pushData([1, 2, 3, 4]);
+streamIntake.pushData([5, 6, 7, 8]);
+streamIntake.signalEnd();
+```
+
+### Error Handling in Stream Pipelines
+
+Error handling is an essential part of working with streams. The `StreamWrapper` assists in combining multiple streams while managing errors seamlessly:
+
+```typescript
+import { StreamWrapper } from '@push.rocks/smartstream';
+
+const faultyStream = new SmartDuplex({
+  async writeFunction(chunk, { push }) {
+    if (chunk === 'bad data') {
+      throw new Error('Faulty data encountered');
+    }
+    push(chunk);
+  }
+});
+
+const readStream = new StreamIntake<string>();
+const writeStream = new SmartDuplex({
+  async writeFunction(chunk) {
+    console.log('Written chunk:', chunk);
+  }
+});
+
+const combinedStream = new StreamWrapper([readStream, faultyStream, writeStream]);
+
+combinedStream.run()
+  .then(() => console.log('Stream processing completed.'))
+  .catch(err => console.error('Stream error:', err.message));
+
+// Push Data
+readStream.pushData('good data');
+readStream.pushData('bad data');  // This will throw an error
+readStream.pushData('more good data');
+readStream.signalEnd();
+```
+
+### Testing Streams
+
+Here's an example test case using the `tap` testing framework to verify the integrity of the `SmartDuplex` from a buffer:
+
+```typescript
+import { expect, tap } from '@push.rocks/tapbundle';
+import { SmartDuplex } from '@push.rocks/smartstream';
+
+tap.test('should create a SmartStream from a Buffer', async () => {
+  const bufferData = Buffer.from('This is a test buffer');
+  const smartStream = SmartDuplex.fromBuffer(bufferData, {});
+  
+  let receivedData = Buffer.alloc(0);
+  
+  return new Promise<void>((resolve) => {
+    smartStream.on('data', (chunk: Buffer) => {
+      receivedData = Buffer.concat([receivedData, chunk]);
+    });
+
+    smartStream.on('end', () => {
+      expect(receivedData.toString()).toEqual(bufferData.toString());
+      resolve();
+    });
+  });
+});
+
+tap.start();
+```
+
+### Working with Files and Buffers
+
+You can easily stream files and buffers with `smartstream`. Here’s a test illustrating reading and writing with file streams using `smartfile` combined with `smartstream` utilities:
+
+```typescript
+import { tap } from '@push.rocks/tapbundle';
+import * as smartfile from '@push.rocks/smartfile';
+import { SmartDuplex, StreamWrapper } from '@push.rocks/smartstream';
+
+tap.test('should handle file read and write streams', async () => {
+  const readStream = smartfile.fsStream.createReadStream('./test/assets/readabletext.txt');
+  const writeStream = smartfile.fsStream.createWriteStream('./test/assets/writabletext.txt');
+
+  const transformStream = new SmartDuplex({
+    async writeFunction(chunk, { push }) {
+      const transformedChunk = chunk.toString().toUpperCase();
+      push(transformedChunk);
+    }
+  });
+
+  const streamWrapper = new StreamWrapper([readStream, transformStream, writeStream]);
+
+  await streamWrapper.run();
+
+  const outputContent = await smartfile.fs.promises.readFile('./test/assets/writabletext.txt', 'utf-8');
+  console.log('Output Content:', outputContent);
+});
+
+tap.start();
+```
+
+### Modular and Scoped Transformations
+
+Creating modular and scoped transformations is straightforward with `SmartDuplex`:
+
+```typescript
+import { SmartDuplex } from '@push.rocks/smartstream';
+
+type DataChunk = {
+  id: number;
+  data: string;
+};
+
+const transformationStream1 = new SmartDuplex<DataChunk, DataChunk>({
+  async writeFunction(chunk, { push }) {
+    chunk.data = chunk.data.toUpperCase();
+    push(chunk);
+  }
+})
+
+const transformationStream2 = new SmartDuplex<DataChunk, DataChunk>({
+  async writeFunction(chunk, { push }) {
+    chunk.data = `${chunk.data} processed with transformation 2`;
+    push(chunk);
+  }
+});
+
+const initialData: DataChunk[] = [
+  { id: 1, data: 'first' },
+  { id: 2, data: 'second' }
+];
+
+const intakeStream = new StreamIntake<DataChunk>();
+
+intakeStream
+  .pipe(transformationStream1)
+  .pipe(transformationStream2)
+  .on('data', data => console.log('Transformed Data:', data));
+
+initialData.forEach(item => intakeStream.pushData(item));
+intakeStream.signalEnd();
+```
+
+By leveraging `SmartDuplex`, `StreamWrapper`, and `StreamIntake`, you can streamline and enhance your data transformation pipelines in Node.js with a clear, efficient, and backpressure-friendly approach.
+```
 
-For more detailed examples and documentation, visit the [GitLab Repository](https://gitlab.com/push.rocks/smartstream) or the [GitHub Mirror](https://github.com/pushrocks/smartstream).
 
 ## License and Legal Information
 

test/test.ts_web.both.ts

@@ -0,0 +1,70 @@
+import { expect, expectAsync, tap } from '@push.rocks/tapbundle';
+import * as webstream from '../ts_web/index.js';
+
+tap.test('WebDuplexStream', async (toolsArg) => {
+  const testDone = toolsArg.defer(); // Create a deferred object to control test completion.
+  const inputUint8Array = new Uint8Array([1, 2, 3, 4, 5]);
+  const stream = webstream.WebDuplexStream.fromUInt8Array(inputUint8Array);
+
+  const reader = stream.readable.getReader();
+  let readUint8Array = new Uint8Array();
+
+  reader.read().then(function processText({ done, value }) {
+    if (done) {
+      expect(readUint8Array).toEqual(inputUint8Array);
+      testDone.resolve(); // Correctly signal that the test is done.
+      return;
+    }
+    readUint8Array = new Uint8Array([...readUint8Array, ...value]);
+    return reader.read().then(processText);
+  });
+
+  return testDone.promise; // Return the promise to properly wait for the test to complete.
+});
+
+
+tap.test('should handle transform with a write function', async (toolsArg) => {
+  const testDone = toolsArg.defer();
+  const input = [1, 2, 3, 4, 5];
+  const expectedOutput = [2, 4, 6, 8, 10];
+
+  const transformStream = new webstream.WebDuplexStream<number, number>({
+    writeFunction: (chunk, { push }) => {
+      push(chunk * 2); // Push the doubled number into the stream
+      return Promise.resolve(); // Resolve the promise immediately
+    },
+  });
+
+  const writableStream = transformStream.writable.getWriter();
+  const readableStream = transformStream.readable.getReader();
+
+  const output: number[] = [];
+
+  // Process the text and resolve the test once done.
+  const processText = async ({ done, value }) => {
+    if (done) {
+      expect(output).toEqual(expectedOutput);
+      testDone.resolve(); // Resolve the deferred test once all values have been read.
+      return;
+    }
+    if (value !== undefined) {
+      output.push(value);
+    }
+    // Continue reading and processing.
+    await readableStream.read().then(processText);
+  };
+
+  // Start the read process before writing to the stream.
+  readableStream.read().then(processText);
+
+  // Sequentially write to the stream and close when done.
+  for (const num of input) {
+    await writableStream.write(num);
+  }
+  await writableStream.close();
+
+  return testDone.promise; // This will wait until the testDone is resolved before completing the test.
+});
+
+
+tap.start();

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartstream',
-  version: '3.0.35',
+  version: '3.0.40',
-  description: 'simplifies access to node streams'
+  description: 'A library to simplify the creation and manipulation of Node.js streams, providing utilities for handling transform, duplex, and readable/writable streams effectively in TypeScript.'
 }

ts/smartstream.classes.smartduplex.ts

@@ -157,4 +157,53 @@ export class SmartDuplex<TInput = any, TOutput = any> extends Duplex {
     this.backpressuredArray.push(null);
     callback();
   }
+
+  public getWebStreams(): { readable: ReadableStream, writable: WritableStream } {
+    const duplex = this;
+    const readable = new ReadableStream({
+      start(controller) {
+        duplex.on('readable', () => {
+          let chunk;
+          while (null !== (chunk = duplex.read())) {
+            controller.enqueue(chunk);
+          }
+        });
+  
+        duplex.on('end', () => {
+          controller.close();
+        });
+      },
+      cancel(reason) {
+        duplex.destroy(new Error(reason));
+      }
+    });
+  
+    const writable = new WritableStream({
+      write(chunk) {
+        return new Promise<void>((resolve, reject) => {
+          const isBackpressured = !duplex.write(chunk, (error) => {
+            if (error) {
+              reject(error);
+            } else {
+              resolve();
+            }
+          });
+  
+          if (isBackpressured) {
+            duplex.once('drain', resolve);
+          }
+        });
+      },
+      close() {
+        return new Promise<void>((resolve, reject) => {
+          duplex.end(resolve);
+        });
+      },
+      abort(reason) {
+        duplex.destroy(new Error(reason));
+      }
+    });
+  
+    return { readable, writable };
+  }
 }

ts/smartstream.classes.streamintake.ts

@@ -14,7 +14,7 @@ export class StreamIntake<T> extends plugins.stream.Readable {
   _read(size: number): void {
     // console.log('get next');
     const pushChunk = (): void => {
-      if (this.chunkStore.length > 0) {
+      while (this.chunkStore.length > 0) {
         // If push returns false, then we should stop reading
         if (!this.push(this.chunkStore.shift())) {
           return;

ts/smartstream.plugins.ts

@@ -7,7 +7,7 @@ export { stream };
 import * as lik from '@push.rocks/lik';
 import * as smartpromise from '@push.rocks/smartpromise';
 import * as smartrx from '@push.rocks/smartrx';
-import * as webstream from '@push.rocks/webstream';
+import * as webstream from '../dist_ts_web/index.js';
 
 export { lik, smartpromise, smartrx, webstream };
 

ts_web/00_commitinfo_data.ts

@@ -0,0 +1,8 @@
+/**
+ * autocreated commitinfo by @pushrocks/commitinfo
+ */
+export const commitinfo = {
+  name: '@push.rocks/smartstream',
+  version: '3.0.40',
+  description: 'A library to simplify the creation and manipulation of Node.js streams, providing utilities for handling transform, duplex, and readable/writable streams effectively in TypeScript.'
+}

ts_web/classes.webduplexstream.ts

@@ -0,0 +1,156 @@
+import * as plugins from './plugins.js';
+
+
+// ========================================
+// READ
+// ========================================
+export interface IStreamToolsRead<TInput, TOutput> {
+  done: () => void;
+  write: (writeArg: TInput) => void;
+}
+
+/**
+ * the read function is called anytime
+ *   -> the WebDuplexStream is being read from
+ *      and at the same time if nothing is enqueued
+ */
+export interface IStreamReadFunction<TInput, TOutput> {
+  (toolsArg: IStreamToolsRead<TInput, TOutput>): Promise<void>;
+}
+
+// ========================================
+// WRITE
+// ========================================
+export interface IStreamToolsWrite<TInput, TOutput> {
+  truncate: () => void;
+  push: (pushArg: TOutput) => void;
+}
+
+/**
+ * the write function can return something.
+ * It is called anytime a chunk is written to the stream.
+ */
+export interface IStreamWriteFunction<TInput, TOutput> {
+  (chunkArg: TInput, toolsArg: IStreamToolsWrite<TInput, TOutput>): Promise<any>;
+}
+
+export interface IStreamFinalFunction<TInput, TOutput> {
+  (toolsArg: IStreamToolsWrite<TInput, TOutput>): Promise<TOutput>;
+}
+
+export interface WebDuplexStreamOptions<TInput, TOutput> {
+  readFunction?: IStreamReadFunction<TInput, TOutput>;
+  writeFunction?: IStreamWriteFunction<TInput, TOutput>;
+  finalFunction?: IStreamFinalFunction<TInput, TOutput>;
+}
+
+export class WebDuplexStream<TInput = any, TOutput = any> extends TransformStream<TInput, TOutput> {
+  static fromUInt8Array(uint8Array: Uint8Array): WebDuplexStream<Uint8Array, Uint8Array> {
+    const stream = new WebDuplexStream<Uint8Array, Uint8Array>({
+      writeFunction: async (chunk, { push }) => {
+        push(chunk); // Directly push the chunk as is
+        return null;
+      }
+    });
+
+    const writer = stream.writable.getWriter();
+    writer.write(uint8Array).then(() => writer.close());
+
+    return stream;
+  }
+  
+  // INSTANCE
+  options: WebDuplexStreamOptions<TInput, TOutput>;
+
+  constructor(optionsArg: WebDuplexStreamOptions<TInput, TOutput>) {
+    super({
+      async transform(chunk, controller) {
+        // Transformation logic remains unchanged
+        if (optionsArg?.writeFunction) {
+          const tools: IStreamToolsWrite<TInput, TOutput> = {
+            truncate: () => controller.terminate(),
+            push: (pushArg: TOutput) => controller.enqueue(pushArg),
+          };
+        
+          optionsArg.writeFunction(chunk, tools)
+            .then(writeReturnChunk => {
+              // the write return chunk is optional
+              // just in case the write function returns something other than void.
+              if (writeReturnChunk) {
+                controller.enqueue(writeReturnChunk);
+              }
+            })
+            .catch(err => controller.error(err));
+        } else {
+          controller.error(new Error('No write function provided'));
+        }
+      },
+      async flush(controller) {
+        // Flush logic remains unchanged
+        if (optionsArg?.finalFunction) {
+          const tools: IStreamToolsWrite<TInput, TOutput> = {
+            truncate: () => controller.terminate(),
+            push: (pipeObject) => controller.enqueue(pipeObject),
+          };
+      
+          optionsArg.finalFunction(tools)
+            .then(finalChunk => {
+              if (finalChunk) {
+                controller.enqueue(finalChunk);
+              }
+            })  
+            .catch(err => controller.error(err))
+            .finally(() => controller.terminate());
+        } else {
+          controller.terminate();
+        }
+      }
+    });
+
+    this.options = optionsArg;
+  }
+
+  // Method to create a custom readable stream that integrates the readFunction
+  // readFunction is executed whenever the stream is being read from and nothing is enqueued
+  getCustomReadableStream() {
+    const readableStream = this.readable;
+    const options = this.options;
+    const customReadable = new ReadableStream({
+      async pull(controller) {
+        const reader = readableStream.getReader();
+
+        // Check the current state of the original stream
+        const { value, done } = await reader.read();
+        reader.releaseLock();
+
+        if (done) {
+          // If the original stream is done, close the custom readable stream
+          controller.close();
+        } else {
+          if (value) {
+            // If there is data in the original stream, enqueue it and do not execute the readFunction
+            controller.enqueue(value);
+          } else if (options.readFunction) {
+            // If the original stream is empty, execute the readFunction and read again
+            await options.readFunction({
+              done: () => controller.close(),
+              write: (writeArg) => controller.enqueue(writeArg),
+            });
+            
+            const newReader = readableStream.getReader();
+            const { value: newValue, done: newDone } = await newReader.read();
+            newReader.releaseLock();
+
+            if (newDone) {
+              controller.close();
+            } else {
+              controller.enqueue(newValue);
+            }
+          }
+        }
+      }
+    });
+
+    return customReadable;
+  }
+}

ts_web/index.ts

@@ -0,0 +1,2 @@
+import './plugins.js';
+export * from './classes.webduplexstream.js';

ts_web/plugins.ts

@@ -0,0 +1,15 @@
+// @push.rocks scope
+import * as smartenv from '@push.rocks/smartenv';
+
+export {
+  smartenv,
+}
+
+// lets setup dependencies
+const smartenvInstance = new smartenv.Smartenv();
+
+await smartenvInstance.getSafeNodeModule<typeof import('stream/web')>('stream/web', async (moduleArg) => {
+  globalThis.ReadableStream = moduleArg.ReadableStream;
+  globalThis.WritableStream = moduleArg.WritableStream;
+  globalThis.TransformStream = moduleArg.TransformStream;
+})