Bootstrap files finder and supporting classes.

src/Files/FilesEntry.php

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+<?php
+namespace HaydenPierce\ClassFinder\Files;
+
+class FilesEntry
+{
+    private $file;
+
+    public function __construct($fileToInclude)
+    {
+        $this->file = $fileToInclude;
+    }
+
+    public function knowsNamespace($namespace)
+    {
+        // TODO.
+    }
+
+    /**
+     * @param $namespace
+     * @return bool
+     */
+    public function matches($namespace)
+    {
+        // TODO.
+    }
+}

src/Files/FilesFactory.php

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+<?php
+namespace HaydenPierce\ClassFinder\Files;
+
+use HaydenPierce\ClassFinder\AppConfig;
+
+class FilesEntryFactory
+{
+    /** @var AppConfig */
+    private $appConfig;
+
+    public function __construct(AppConfig $appConfig)
+    {
+        $this->appConfig = $appConfig;
+    }
+
+    /**
+     * @return array
+     */
+    public function getFilesEntries()
+    {
+        $files = array();
+
+        $filesKeys = array_keys($files);
+        return array_map(function($index) use ($filesKeys){
+            return new FilesEntry($filesKeys[$index]);
+        }, range(0, count($files) - 1));
+    }
+}

src/Files/FilesFinder.php

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+<?php
+namespace HaydenPierce\ClassFinder\Files;
+
+use HaydenPierce\ClassFinder\FinderInterface;
+
+class FilesFinder implements FinderInterface
+{
+    private $factory;
+
+    public function __construct(FilesEntryFactory $factory)
+    {
+        $this->factory = $factory;
+    }
+
+    public function isNamespaceKnown($namespace)
+    {
+        $filesEntries = $this->factory->getfilesEntries();
+
+        foreach($filesEntries as $filesEntry) {
+            if ($filesEntry->knowsNamespace($namespace)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * @param $namespace
+     * @return bool|string
+     */
+    public function findClasses($namespace)
+    {
+        $filesEntries = $this->factory->getFilesEntries();
+
+        $matchingEntries = array_filter($filesEntries, function(filesEntry $entry) use ($namespace) {
+            return $entry->matches($namespace);
+        });
+
+        return array_map(function(filesEntry $entry) {
+            return $entry->getClassName();
+        }, $matchingEntries);
+    }
+}