Add files via upload

Author: KB-WEB-DEVELOPMENT

7. Choosing a Syntax Handler/imperative/BlockChecker.php

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+<?php
+
+class BlockChecker {
+
+    public function check(string $file):string
+    {
+        $violations = is_file($file) ? "This is a valid block type file." : "This is an invalid block type file.";      
+        return $violations;
+    }
+}

7. Choosing a Syntax Handler/imperative/CharChecker.php

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+<?php
+
+class CharChecker {
+
+    public function check($file):string
+    {
+        $violations = is_file($file) ? "This is a valid char type file." : "This is an invalid char type file.";      
+        return $violations;
+    }
+}

7. Choosing a Syntax Handler/imperative/CheckedFile.php

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+<?php
+
+class CheckedFile {
+	
+    public function __construct(  
+        public string $file,
+        public string $violations,
+    ){}
+}

7. Choosing a Syntax Handler/imperative/DirChecker.php

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+<?php
+
+class DirChecker {
+
+    public function check(string $file):string
+    {
+        $violations = is_file($file) ? "This is a valid dir type file." : "This is an invalid dir type file.";      
+        return $violations;
+    }
+}

7. Choosing a Syntax Handler/imperative/FifoChecker.php

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+<?php
+
+class FifoChecker {
+    
+    public function check(string $file):string
+    {
+        $violations = is_file($file) ? "This is a valid Fifo type file." : "This is an invalid Fifo type file.";      
+        return $violations;
+    }
+}

7. Choosing a Syntax Handler/imperative/FileChecker.php

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+<?php
+
+class FileChecker {
+
+    public function check($file):string
+    {
+        $violations = is_file($file) ? "This is a valid file type file." : "This is an invalid file type file.";      
+        return $violations;
+    }
+}

7. Choosing a Syntax Handler/imperative/LinkChecker.php

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+<?php
+
+class LinkChecker {
+
+    public function check(string $file):string
+    {
+        $violations = is_file($file) ? "This is a valid link type file." : "This is an invalid link type file.";      
+        return $violations;
+    }
+}

7. Choosing a Syntax Handler/imperative/Nitpicker.php

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+<?php
+require 'BlockChecker.php';
+require 'CharChecker.php';
+require 'DirChecker.php';
+require 'FifoChecker.php';
+require 'FileChecker.php';
+require 'LinkChecker.php';
+require 'NullChecker.php';
+require 'Socketchecker.php';
+require 'UnknownChecker.php';
+require 'CheckedFile.php';
+
+class Nitpicker {
+
+    public function checkFile(string $file):object
+    {
+
+        $violations = $this->getCheckerFor(file:$file)->check(file:$file);
+        $checkedFile =  new CheckedFile(file:$file,violations:$violations);
+        
+        return $checkedFile;
+    }
+
+    public function getCheckerFor(string $file):object
+    {
+        $checker = match(filetype($file)) {
+
+            'fifo' => new FifoChecker($file),
+            'char' => new CharChecker($file),
+            'dir' => new DirChecker($file),
+            'block' => new BlockChecker($file),
+            'link' => new LinkChecker($file),
+            'file' => new FileChecker($file),
+            'socket' => new SocketChecker($file),
+            'unknown' => new UnknownChecker($file),
+             default => new NullChecker($file),		
+		};
+        return $checker;
+    }
+
+}

7. Choosing a Syntax Handler/imperative/NullChecker.php

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+<?php
+
+class NullChecker {
+
+    public function check(string $file):string
+    {
+        $violations = "The filetype of this file is unknown.";
+
+        return $violations;
+    }
+}

7. Choosing a Syntax Handler/imperative/SocketChecker.php

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+<?php
+
+class SocketChecker {
+
+    public function check(string $file):string
+    {
+        $violations = is_file($file) ? "This is a valid socket type file." : "This is an invalid socket type file.";      
+        return $violations;
+    }
+}

7. Choosing a Syntax Handler/imperative/UnknownChecker.php

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+<?php
+
+class UnknownChecker {
+
+    public function check(string $file):string
+    {
+        $violations = is_file($file) ? "This is a valid unknown type file." : "This is an invalid unknown type file.";      
+        return $violations; 
+    }
+}