v4.0.0

changelog.md

@@ -1,5 +1,115 @@
 # Changelog
 
+## 2025-11-20 - 4.0.0 - BREAKING CHANGE(core)
+Make API strict-by-default: remove *Strict variants, throw on not-found/exists conflicts, add explicit exists() methods, update docs/tests and bump deps
+
+- Breaking: Core API methods are strict by default and now throw errors instead of returning null when targets are missing or already exist (e.g. getBucketByName, getFile, getSubDirectoryByName, fastPut, fastPutStream).
+- Removed *Strict variants: fastPutStrict, getBucketByNameStrict, getFileStrict, getSubDirectoryByNameStrict — use the base methods which are now strict.
+- Added explicit existence checks: bucketExists (SmartBucket), fileExists (Directory/fileExists), directoryExists (Directory.directoryExists), and fastExists (Bucket.fastExists) to allow non-throwing checks before operations.
+- Return type updates: fastPut now returns Promise<File> (no null), getBucketByName/getFile/getSubDirectoryByName now return the respective objects or throw.
+- Improved error messages to guide callers (e.g. suggest setting overwrite:true on fastPut when object exists).
+- Updated README, changelog and tests to reflect the new strict semantics and usage patterns.
+- Developer/runtime dependency bumps: @git.zone/tsbuild, @git.zone/tsrun, @git.zone/tstest, @aws-sdk/client-s3, @push.rocks/smartstring, @tsclass/tsclass (version bumps recorded in package.json).
+- Major version bump to 4.0.0 to reflect breaking API changes.
+
+## 2025-11-20 - 4.0.0 - BREAKING: Strict by default + exists methods
+Complete API overhaul: all methods throw by default, removed all *Strict variants, added dedicated exists methods
+
+**Breaking Changes:**
+
+**Putters (Write Operations):**
+- `fastPut`: Return type `Promise<File | null>` → `Promise<File>`, throws when file exists and overwrite is false
+- `fastPutStream`: Now throws when file exists and overwrite is false (previously returned silently)
+- `fastPutStrict`: **Removed** - use `fastPut` directly
+
+**Getters (Read Operations):**
+- `getBucketByName`: Return type `Promise<Bucket | null>` → `Promise<Bucket>`, throws when bucket not found
+- `getBucketByNameStrict`: **Removed** - use `getBucketByName` directly
+- `getFile`: Return type `Promise<File | null>` → `Promise<File>`, throws when file not found
+- `getFileStrict`: **Removed** - use `getFile` directly
+- `getSubDirectoryByName`: Return type `Promise<Directory | null>` → `Promise<Directory>`, throws when directory not found
+- `getSubDirectoryByNameStrict`: **Removed** - use `getSubDirectoryByName` directly
+
+**New Methods (Existence Checks):**
+- `bucket.fastExists({ path })` - ✅ Already existed
+- `directory.fileExists({ path })` - **NEW** - Check if file exists
+- `directory.directoryExists(name)` - **NEW** - Check if subdirectory exists
+- `smartBucket.bucketExists(name)` - **NEW** - Check if bucket exists
+
+**Benefits:**
+- ✅ **Simpler API**: Removed 4 redundant *Strict methods
+- ✅ **Type-safe**: No nullable returns - `Promise<T>` not `Promise<T | null>`
+- ✅ **Fail-fast**: Errors throw immediately with precise stack traces
+- ✅ **Consistent**: All methods behave the same way
+- ✅ **Explicit**: Use exists() to check, then get() to retrieve
+- ✅ **Better debugging**: Error location is always precise
+
+**Migration Guide:**
+
+```typescript
+// ============================================
+// Pattern 1: Check then Get (Recommended)
+// ============================================
+
+// Before (v3.x):
+const bucket = await smartBucket.getBucketByName('my-bucket');
+if (bucket) {
+  // use bucket
+}
+
+// After (v4.0):
+if (await smartBucket.bucketExists('my-bucket')) {
+  const bucket = await smartBucket.getBucketByName('my-bucket'); // guaranteed to exist
+  // use bucket
+}
+
+// ============================================
+// Pattern 2: Try/Catch
+// ============================================
+
+// Before (v3.x):
+const file = await directory.getFile({ path: 'file.txt' });
+if (!file) {
+  // Handle not found
+}
+
+// After (v4.0):
+try {
+  const file = await directory.getFile({ path: 'file.txt' });
+  // use file
+} catch (error) {
+  // Handle not found
+}
+
+// ============================================
+// Pattern 3: Remove *Strict calls
+// ============================================
+
+// Before (v3.x):
+const file = await directory.getFileStrict({ path: 'file.txt' });
+
+// After (v4.0):
+const file = await directory.getFile({ path: 'file.txt' }); // already strict
+
+// ============================================
+// Pattern 4: Write Operations
+// ============================================
+
+// Before (v3.x):
+const file = await bucket.fastPutStrict({ path: 'file.txt', contents: 'data' });
+
+// After (v4.0):
+const file = await bucket.fastPut({ path: 'file.txt', contents: 'data' }); // already strict
+```
+
+## 2025-08-18 - 3.3.10 - fix(helpers)
+Normalize and robustly parse S3 endpoint configuration; use normalized descriptor in SmartBucket and update dev tooling
+
+- Add normalizeS3Descriptor to ts/helpers.ts: robust endpoint parsing, coercion of useSsl/port, sanitization, warnings for dropped URL parts, and canonical endpoint URL output.
+- Update SmartBucket (ts/classes.smartbucket.ts) to use the normalized endpoint, region, credentials and forcePathStyle from normalizeS3Descriptor.
+- Adjust dev tooling: bump @git.zone/tsbuild -> ^2.6.7, @git.zone/tstest -> ^2.3.4, @push.rocks/qenv -> ^6.1.3 and update test script to run tstest with --verbose --logfile --timeout 60.
+- Add .claude/settings.local.json containing local assistant/CI permission settings (local config only).
+
 ## 2025-08-15 - 3.3.9 - fix(docs)
 Revise README with detailed usage examples and add local Claude settings
 

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "@push.rocks/smartbucket",
-  "version": "3.3.9",
+  "version": "3.3.10",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@push.rocks/smartbucket",
-      "version": "3.3.9",
+      "version": "3.3.10",
       "license": "UNLICENSED",
       "dependencies": {
         "@push.rocks/smartpath": "^5.0.18",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@push.rocks/smartbucket",
-  "version": "3.3.9",
+  "version": "4.0.0",
   "description": "A TypeScript library providing a cloud-agnostic interface for managing object storage with functionalities like bucket management, file and directory operations, and advanced features such as metadata handling and file locking.",
   "main": "dist_ts/index.js",
   "typings": "dist_ts/index.d.ts",
@@ -8,26 +8,26 @@
   "author": "Task Venture Capital GmbH",
   "license": "MIT",
   "scripts": {
-    "test": "(tstest test/)",
+    "test": "(tstest test/ --verbose --logfile --timeout 60)",
     "build": "(tsbuild --web --allowimplicitany)"
   },
   "devDependencies": {
-    "@git.zone/tsbuild": "^2.6.4",
+    "@git.zone/tsbuild": "^3.1.0",
-    "@git.zone/tsrun": "^1.2.49",
+    "@git.zone/tsrun": "^2.0.0",
-    "@git.zone/tstest": "^2.3.2",
+    "@git.zone/tstest": "^3.0.1",
-    "@push.rocks/qenv": "^6.1.2",
+    "@push.rocks/qenv": "^6.1.3",
     "@push.rocks/tapbundle": "^6.0.3"
   },
   "dependencies": {
-    "@aws-sdk/client-s3": "^3.864.0",
+    "@aws-sdk/client-s3": "^3.936.0",
     "@push.rocks/smartmime": "^2.0.4",
     "@push.rocks/smartpath": "^6.0.0",
     "@push.rocks/smartpromise": "^4.2.3",
     "@push.rocks/smartrx": "^3.0.10",
     "@push.rocks/smartstream": "^3.2.5",
-    "@push.rocks/smartstring": "^4.0.15",
+    "@push.rocks/smartstring": "^4.1.0",
     "@push.rocks/smartunique": "^3.0.9",
-    "@tsclass/tsclass": "^9.2.0"
+    "@tsclass/tsclass": "^9.3.0"
   },
   "private": false,
   "files": [

readme.hints.md

@@ -1,3 +1,5 @@
 * The project uses the official s3 client, not the minio client.
-* notice the difference between *Strict methods and the normal methods.
+* **All methods throw by default** (strict mode):  - Put operations: `fastPut`, `fastPutStream` throw when file exists and overwrite is false  - Get operations: `getBucketByName`, `getFile`, `getSubDirectoryByName` throw when not found
+* **Use exists() methods to check before getting**: `bucketExists`, `fileExists`, `directoryExists`, `fastExists`
+* **No *Strict methods**: All removed (fastPutStrict, getBucketByNameStrict, getFileStrict, getSubDirectoryByNameStrict)
 * metadata is handled though the MetaData class. Important!

readme.md

@@ -88,8 +88,8 @@ console.log('🗑️ Bucket removed');
 ```typescript
 const bucket = await smartBucket.getBucketByName('my-bucket');
 
-// Simple file upload
+// Simple file upload (returns File object)
-await bucket.fastPut({
+const file = await bucket.fastPut({
   path: 'documents/report.pdf',
   contents: Buffer.from('Your file content here')
 });
@@ -100,12 +100,23 @@ await bucket.fastPut({
   contents: 'Buy milk\nCall mom\nRule the world'
 });
 
-// Strict upload (returns File object)
+// Upload with overwrite control
-const uploadedFile = await bucket.fastPutStrict({
+const uploadedFile = await bucket.fastPut({
   path: 'images/logo.png',
   contents: imageBuffer,
-  overwrite: true // Optional: control overwrite behavior
+  overwrite: true // Set to true to replace existing files
 });
+
+// Error handling: fastPut throws if file exists and overwrite is false
+try {
+  await bucket.fastPut({
+    path: 'existing-file.txt',
+    contents: 'new content'
+  });
+} catch (error) {
+  console.error('Upload failed:', error.message);
+  // Error: Object already exists at path 'existing-file.txt' in bucket 'my-bucket'. Set overwrite:true to replace it.
+}
 ```
 
 #### Download Files

test/test.node+deno.ts

@@ -16,7 +16,7 @@ tap.test('should create a valid smartbucket', async () => {
     endpoint: await testQenv.getEnvVarOnDemandStrict('S3_ENDPOINT'),
   });
   expect(testSmartbucket).toBeInstanceOf(smartbucket.SmartBucket);
-  myBucket = await testSmartbucket.getBucketByNameStrict(await testQenv.getEnvVarOnDemandStrict('S3_BUCKET'),);
+  myBucket = await testSmartbucket.getBucketByName(await testQenv.getEnvVarOnDemandStrict('S3_BUCKET'),);
   expect(myBucket).toBeInstanceOf(smartbucket.Bucket);
   expect(myBucket.name).toEqual('test-pushrocks-smartbucket');
 });

test/test.trash.node+deno.ts

@@ -17,7 +17,7 @@ tap.test('should create a valid smartbucket', async () => {
     endpoint: await testQenv.getEnvVarOnDemandStrict('S3_ENDPOINT'),
   });
   expect(testSmartbucket).toBeInstanceOf(smartbucket.SmartBucket);
-  myBucket = await testSmartbucket.getBucketByNameStrict(await testQenv.getEnvVarOnDemandStrict('S3_BUCKET'),);
+  myBucket = await testSmartbucket.getBucketByName(await testQenv.getEnvVarOnDemandStrict('S3_BUCKET'),);
   expect(myBucket).toBeInstanceOf(smartbucket.Bucket);
   expect(myBucket.name).toEqual('test-pushrocks-smartbucket');
 });
@@ -30,7 +30,7 @@ tap.test('should clean all contents', async () => {
 
 tap.test('should delete a file into the normally', async () => {
   const path = 'trashtest/trashme.txt';
-  const file = await myBucket.fastPutStrict({
+  const file = await myBucket.fastPut({
     path,
     contents: 'I\'m in the trash test content!',
   });
@@ -44,7 +44,7 @@ tap.test('should delete a file into the normally', async () => {
 
 tap.test('should put a file into the trash', async () => {
   const path = 'trashtest/trashme.txt';
-  const file = await myBucket.fastPutStrict({
+  const file = await myBucket.fastPut({
     path,
     contents: 'I\'m in the trash test content!',
   });
@@ -76,7 +76,7 @@ tap.test('should put a file into the trash', async () => {
 
 tap.test('should restore a file from trash', async () => {
   const baseDirectory = await myBucket.getBaseDirectory();
-  const file = await baseDirectory.getFileStrict({
+  const file = await baseDirectory.getFile({
     path: 'trashtest/trashme.txt',
     getFromTrash: true
   });

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartbucket',
-  version: '3.3.9',
+  version: '4.0.0',
   description: 'A TypeScript library providing a cloud-agnostic interface for managing object storage with functionalities like bucket management, file and directory operations, and advanced features such as metadata handling and file locking.'
 }

ts/classes.bucket.ts

@@ -14,7 +14,7 @@ import { Trash } from './classes.trash.js';
  * operate in S3 basic fashion on blobs of data.
  */
 export class Bucket {
-  public static async getBucketByName(smartbucketRef: SmartBucket, bucketNameArg: string) {
+  public static async getBucketByName(smartbucketRef: SmartBucket, bucketNameArg: string): Promise<Bucket> {
     const command = new plugins.s3.ListBucketsCommand({});
     const buckets = await smartbucketRef.s3Client.send(command);
     const foundBucket = buckets.Buckets!.find((bucket) => bucket.Name === bucketNameArg);
@@ -24,8 +24,7 @@ export class Bucket {
       console.log(`Taking this as base for new Bucket instance`);
       return new this(smartbucketRef, bucketNameArg);
     } else {
-      console.log(`did not find bucket by name: ${bucketNameArg}`);
+      throw new Error(`Bucket '${bucketNameArg}' not found.`);
-      return null;
     }
   }
 
@@ -71,7 +70,7 @@ export class Bucket {
     }
     const checkPath = await helpers.reducePathDescriptorToPath(pathDescriptorArg);
     const baseDirectory = await this.getBaseDirectory();
-    return await baseDirectory.getSubDirectoryByNameStrict(checkPath, {
+    return await baseDirectory.getSubDirectoryByName(checkPath, {
       getEmptyDirectory: true,
     });
   }
@@ -88,15 +87,16 @@ export class Bucket {
       contents: string | Buffer;
       overwrite?: boolean;
     }
-  ): Promise<File | null> {
+  ): Promise<File> {
     try {
       const reducedPath = await helpers.reducePathDescriptorToPath(optionsArg);
       const exists = await this.fastExists({ path: reducedPath });
 
       if (exists && !optionsArg.overwrite) {
-        const errorText = `Object already exists at path '${reducedPath}' in bucket '${this.name}'.`;
+        throw new Error(
-        console.error(errorText);
+          `Object already exists at path '${reducedPath}' in bucket '${this.name}'. ` +
-        return null;
+          `Set overwrite:true to replace it.`
+        );
       } else if (exists && optionsArg.overwrite) {
         console.log(
           `Overwriting existing object at path '${reducedPath}' in bucket '${this.name}'.`
@@ -129,13 +129,6 @@ export class Bucket {
     }
   }
 
-  public async fastPutStrict(...args: Parameters<Bucket['fastPut']>) {
-    const file = await this.fastPut(...args);
-    if (!file) {
-      throw new Error(`File not stored at path '${args[0].path}'`);
-    }
-    return file;
-  }
 
   /**
    * get file
@@ -259,10 +252,10 @@ export class Bucket {
       const exists = await this.fastExists({ path: optionsArg.path });
 
       if (exists && !optionsArg.overwrite) {
-        console.error(
+        throw new Error(
-          `Object already exists at path '${optionsArg.path}' in bucket '${this.name}'.`
+          `Object already exists at path '${optionsArg.path}' in bucket '${this.name}'. ` +
+          `Set overwrite:true to replace it.`
         );
-        return;
       } else if (exists && optionsArg.overwrite) {
         console.log(
           `Overwriting existing object at path '${optionsArg.path}' in bucket '${this.name}'.`
@@ -460,7 +453,7 @@ export class Bucket {
         Range: `bytes=0-${optionsArg.length - 1}`,
       });
       const response = await this.smartbucketRef.s3Client.send(command);
-      const chunks = [];
+      const chunks: Buffer[] = [];
       const stream = response.Body as any; // SdkStreamMixin includes readable stream
 
       for await (const chunk of stream) {

ts/classes.directory.ts

@@ -69,7 +69,7 @@ export class Directory {
     path: string;
     createWithContents?: string | Buffer;
     getFromTrash?: boolean;
-  }): Promise<File | null> {
+  }): Promise<File> {
     const pathDescriptor = {
       directory: this,
       path: optionsArg.path,
@@ -83,7 +83,7 @@ export class Directory {
       return trashedFile;
     }
     if (!exists && !optionsArg.createWithContents) {
-      return null;
+      throw new Error(`File not found at path '${optionsArg.path}'`);
     }
     if (!exists && optionsArg.createWithContents) {
       await File.create({
@@ -98,17 +98,26 @@ export class Directory {
     });
   }
 
+
   /**
-   * gets a file strictly
+   * Check if a file exists in this directory
-   * @param args 
-   * @returns 
    */
-  public async getFileStrict(...args: Parameters<Directory['getFile']>) {
+  public async fileExists(optionsArg: { path: string }): Promise<boolean> {
-    const file = await this.getFile(...args);
+    const pathDescriptor = {
-    if (!file) {
+      directory: this,
-      throw new Error(`File not found at path '${args[0].path}'`);
+      path: optionsArg.path,
+    };
+    return this.bucketRef.fastExists({
+      path: await helpers.reducePathDescriptorToPath(pathDescriptor),
+    });
   }
-    return file;
+
+  /**
+   * Check if a subdirectory exists
+   */
+  public async directoryExists(dirNameArg: string): Promise<boolean> {
+    const directories = await this.listDirectories();
+    return directories.some(dir => dir.name === dirNameArg);
   }
 
   /**
@@ -206,7 +215,7 @@ export class Directory {
      * if the path is a file path, it will be treated as a file and the parent directory will be returned
      */
     couldBeFilePath?: boolean;
-  } = {}): Promise<Directory | null> {
+  } = {}): Promise<Directory> {
 
     const dirNameArray = dirNameArg.split('/').filter(str => str.trim() !== "");
 
@@ -253,16 +262,12 @@ export class Directory {
       wantedDirectory = await getDirectory(directoryToSearchIn, dirNameToSearch, counter === dirNameArray.length);
     }
 
-    return wantedDirectory || null;
+    if (!wantedDirectory) {
+      throw new Error(`Directory not found at path '${dirNameArg}'`);
+    }
+    return wantedDirectory;
   }
 
-  public async getSubDirectoryByNameStrict(...args: Parameters<Directory['getSubDirectoryByName']>) {
-    const directory = await this.getSubDirectoryByName(...args);
-    if (!directory) {
-      throw new Error(`Directory not found at path '${args[0]}'`);
-    }
-    return directory;
-  }
 
   /**
    * moves the directory
@@ -360,7 +365,7 @@ export class Directory {
      */
     mode?: 'permanent' | 'trash';
   }) {
-    const file = await this.getFileStrict({
+    const file = await this.getFile({
       path: optionsArg.path,
     });
     await file.delete({

ts/classes.file.ts

@@ -245,7 +245,7 @@ export class File {
 
     // lets update references of this
     const baseDirectory = await this.parentDirectoryRef.bucketRef.getBaseDirectory();
-    this.parentDirectoryRef = await baseDirectory.getSubDirectoryByNameStrict(
+    this.parentDirectoryRef = await baseDirectory.getSubDirectoryByName(
       await helpers.reducePathDescriptorToPath(pathDescriptorArg),
       {
         couldBeFilePath: true,

ts/classes.metadata.ts

@@ -17,7 +17,7 @@ export class MetaData {
     metaData.fileRef = optionsArg.file;
 
     // lets find the existing metadata file
-    metaData.metadataFile = await metaData.fileRef.parentDirectoryRef.getFileStrict({
+    metaData.metadataFile = await metaData.fileRef.parentDirectoryRef.getFile({
       path: metaData.fileRef.name + '.metadata',
       createWithContents: '{}',
     });

ts/classes.smartbucket.ts

@@ -2,6 +2,7 @@
 
 import * as plugins from './plugins.js';
 import { Bucket } from './classes.bucket.js';
+import { normalizeS3Descriptor } from './helpers.js';
 
 export class SmartBucket {
   public config: plugins.tsclass.storage.IS3Descriptor;
@@ -17,18 +18,14 @@ export class SmartBucket {
   constructor(configArg: plugins.tsclass.storage.IS3Descriptor) {
     this.config = configArg;
 
-    const protocol = configArg.useSsl === false ? 'http' : 'https';
+    // Use the normalizer to handle various endpoint formats
-    const port = configArg.port ? `:${configArg.port}` : '';
+    const { normalized } = normalizeS3Descriptor(configArg);
-    const endpoint = `${protocol}://${configArg.endpoint}${port}`;
 
     this.s3Client = new plugins.s3.S3Client({
-      endpoint,
+      endpoint: normalized.endpointUrl,
-      region: configArg.region || 'us-east-1',
+      region: normalized.region,
-      credentials: {
+      credentials: normalized.credentials,
-        accessKeyId: configArg.accessKey,
+      forcePathStyle: normalized.forcePathStyle, // Necessary for S3-compatible storage like MinIO or Wasabi
-        secretAccessKey: configArg.accessSecret,
-      },
-      forcePathStyle: true, // Necessary for S3-compatible storage like MinIO or Wasabi
     });
   }
 
@@ -45,11 +42,12 @@ export class SmartBucket {
     return Bucket.getBucketByName(this, bucketNameArg);
   }
 
-  public async getBucketByNameStrict(...args: Parameters<SmartBucket['getBucketByName']>) {
+  /**
-    const bucket = await this.getBucketByName(...args);
+   * Check if a bucket exists
-    if (!bucket) {
+   */
-      throw new Error(`Bucket ${args[0]} does not exist.`);
+  public async bucketExists(bucketNameArg: string): Promise<boolean> {
-    }
+    const command = new plugins.s3.ListBucketsCommand({});
-    return bucket;
+    const buckets = await this.s3Client.send(command);
+    return buckets.Buckets?.some(bucket => bucket.Name === bucketNameArg) ?? false;
   }
 }

ts/classes.trash.ts

@@ -21,7 +21,7 @@ export class Trash {
     const trashDir = await this.getTrashDir();
     const originalPath = await helpers.reducePathDescriptorToPath(pathDescriptor);
     const trashKey = await this.getTrashKeyByOriginalBasePath(originalPath);
-    return trashDir.getFileStrict({ path: trashKey });
+    return trashDir.getFile({ path: trashKey });
   }
 
   public async getTrashKeyByOriginalBasePath (originalPath: string): Promise<string> {

ts/helpers.ts

@@ -20,3 +20,235 @@ export const reducePathDescriptorToPath = async (pathDescriptorArg: interfaces.I
   }
   return returnPath;
 }
+
+// S3 Descriptor Normalization
+export interface IS3Warning {
+  code: string;
+  message: string;
+}
+
+export interface INormalizedS3Config {
+  endpointUrl: string;
+  host: string;
+  protocol: 'http' | 'https';
+  port?: number;
+  region: string;
+  credentials: {
+    accessKeyId: string;
+    secretAccessKey: string;
+  };
+  forcePathStyle: boolean;
+}
+
+function coerceBooleanMaybe(value: unknown): { value: boolean | undefined; warning?: IS3Warning } {
+  if (typeof value === 'boolean') return { value };
+  if (typeof value === 'string') {
+    const v = value.trim().toLowerCase();
+    if (v === 'true' || v === '1') {
+      return { 
+        value: true, 
+        warning: { 
+          code: 'SBK_S3_COERCED_USESSL', 
+          message: `Coerced useSsl='${value}' (string) to boolean true.` 
+        } 
+      };
+    }
+    if (v === 'false' || v === '0') {
+      return { 
+        value: false, 
+        warning: { 
+          code: 'SBK_S3_COERCED_USESSL', 
+          message: `Coerced useSsl='${value}' (string) to boolean false.` 
+        } 
+      };
+    }
+  }
+  return { value: undefined };
+}
+
+function coercePortMaybe(port: unknown): { value: number | undefined; warning?: IS3Warning } {
+  if (port === undefined || port === null || port === '') return { value: undefined };
+  const n = typeof port === 'number' ? port : Number(String(port).trim());
+  if (!Number.isFinite(n) || !Number.isInteger(n) || n <= 0 || n > 65535) {
+    return { 
+      value: undefined, 
+      warning: { 
+        code: 'SBK_S3_INVALID_PORT', 
+        message: `Invalid port '${String(port)}' - expected integer in [1..65535].` 
+      } 
+    };
+  }
+  return { value: n };
+}
+
+function sanitizeEndpointString(raw: unknown): { value: string; warnings: IS3Warning[] } {
+  const warnings: IS3Warning[] = [];
+  let s = String(raw ?? '').trim();
+  if (s !== String(raw ?? '')) {
+    warnings.push({ 
+      code: 'SBK_S3_TRIMMED_ENDPOINT', 
+      message: 'Trimmed surrounding whitespace from endpoint.' 
+    });
+  }
+  return { value: s, warnings };
+}
+
+function parseEndpointHostPort(
+  endpoint: string, 
+  provisionalProtocol: 'http' | 'https'
+): { 
+  hadScheme: boolean; 
+  host: string; 
+  port?: number; 
+  extras: { 
+    droppedPath?: boolean; 
+    droppedQuery?: boolean; 
+    droppedCreds?: boolean 
+  } 
+} {
+  let url: URL | undefined;
+  const extras: { droppedPath?: boolean; droppedQuery?: boolean; droppedCreds?: boolean } = {};
+  
+  // Check if endpoint already has a scheme
+  const hasScheme = /^https?:\/\//i.test(endpoint);
+  
+  // Try parsing as full URL first
+  try {
+    if (hasScheme) {
+      url = new URL(endpoint);
+    } else {
+      // Not a full URL; try host[:port] by attaching provisional scheme
+      // Remove anything after first '/' for safety
+      const cleanEndpoint = endpoint.replace(/\/.*/, '');
+      url = new URL(`${provisionalProtocol}://${cleanEndpoint}`);
+    }
+  } catch (e) {
+    throw new Error(`Unable to parse endpoint '${endpoint}'.`);
+  }
+  
+  // Check for dropped components
+  if (url.username || url.password) extras.droppedCreds = true;
+  if (url.pathname && url.pathname !== '/') extras.droppedPath = true;
+  if (url.search) extras.droppedQuery = true;
+
+  const hadScheme = hasScheme;
+  const host = url.hostname; // hostnames lowercased by URL; IPs preserved
+  const port = url.port ? Number(url.port) : undefined;
+
+  return { hadScheme, host, port, extras };
+}
+
+export function normalizeS3Descriptor(
+  input: plugins.tsclass.storage.IS3Descriptor,
+  logger?: { warn: (msg: string) => void }
+): { normalized: INormalizedS3Config; warnings: IS3Warning[] } {
+  const warnings: IS3Warning[] = [];
+  const logWarn = (w: IS3Warning) => { 
+    warnings.push(w); 
+    if (logger) {
+      logger.warn(`[SmartBucket S3] ${w.code}: ${w.message}`);
+    } else {
+      console.warn(`[SmartBucket S3] ${w.code}: ${w.message}`);
+    }
+  };
+
+  // Coerce and sanitize inputs
+  const { value: coercedUseSsl, warning: useSslWarn } = coerceBooleanMaybe((input as any).useSsl);
+  if (useSslWarn) logWarn(useSslWarn);
+  
+  const { value: coercedPort, warning: portWarn } = coercePortMaybe((input as any).port);
+  if (portWarn) logWarn(portWarn);
+
+  const { value: endpointStr, warnings: endpointSanWarnings } = sanitizeEndpointString((input as any).endpoint);
+  endpointSanWarnings.forEach(logWarn);
+
+  if (!endpointStr) {
+    throw new Error('S3 endpoint is required (got empty string). Provide hostname or URL.');
+  }
+
+  // Provisional protocol selection for parsing host:port forms
+  const provisionalProtocol: 'http' | 'https' = coercedUseSsl === false ? 'http' : 'https';
+
+  const { hadScheme, host, port: epPort, extras } = parseEndpointHostPort(endpointStr, provisionalProtocol);
+
+  if (extras.droppedCreds) {
+    logWarn({ 
+      code: 'SBK_S3_DROPPED_CREDENTIALS', 
+      message: 'Ignored credentials in endpoint URL.' 
+    });
+  }
+  if (extras.droppedPath) {
+    logWarn({ 
+      code: 'SBK_S3_DROPPED_PATH', 
+      message: 'Removed path segment from endpoint URL; S3 endpoint should be host[:port] only.' 
+    });
+  }
+  if (extras.droppedQuery) {
+    logWarn({ 
+      code: 'SBK_S3_DROPPED_QUERY', 
+      message: 'Removed query string from endpoint URL; S3 endpoint should be host[:port] only.' 
+    });
+  }
+
+  // Final protocol decision
+  let finalProtocol: 'http' | 'https';
+  if (hadScheme) {
+    // Scheme from endpoint wins
+    const schemeFromEndpoint = endpointStr.trim().toLowerCase().startsWith('http://') ? 'http' : 'https';
+    finalProtocol = schemeFromEndpoint;
+    if (typeof coercedUseSsl === 'boolean') {
+      const expected = coercedUseSsl ? 'https' : 'http';
+      if (expected !== finalProtocol) {
+        logWarn({ 
+          code: 'SBK_S3_SCHEME_CONFLICT', 
+          message: `useSsl=${String(coercedUseSsl)} conflicts with endpoint scheme '${finalProtocol}'; using endpoint scheme.` 
+        });
+      }
+    }
+  } else {
+    if (typeof coercedUseSsl === 'boolean') {
+      finalProtocol = coercedUseSsl ? 'https' : 'http';
+    } else {
+      finalProtocol = 'https';
+      logWarn({ 
+        code: 'SBK_S3_GUESSED_PROTOCOL', 
+        message: "No scheme in endpoint and useSsl not provided; defaulting to 'https'." 
+      });
+    }
+  }
+
+  // Final port decision
+  let finalPort: number | undefined = undefined;
+  if (coercedPort !== undefined && epPort !== undefined && coercedPort !== epPort) {
+    logWarn({ 
+      code: 'SBK_S3_PORT_CONFLICT', 
+      message: `Port in config (${coercedPort}) conflicts with endpoint port (${epPort}); using config port.` 
+    });
+    finalPort = coercedPort;
+  } else {
+    finalPort = (coercedPort !== undefined) ? coercedPort : epPort;
+  }
+
+  // Build canonical endpoint URL (origin only, no trailing slash)
+  const url = new URL(`${finalProtocol}://${host}`);
+  if (finalPort !== undefined) url.port = String(finalPort);
+  const endpointUrl = url.origin;
+
+  const region = input.region || 'us-east-1';
+
+  return {
+    normalized: {
+      endpointUrl,
+      host,
+      protocol: finalProtocol,
+      port: finalPort,
+      region,
+      credentials: {
+        accessKeyId: input.accessKey,
+        secretAccessKey: input.accessSecret,
+      },
+      forcePathStyle: true,
+    },
+    warnings,
+  };
+}