initialize

composer.json

@@ -3,7 +3,13 @@
     "description": "Potter Framework Stream Component",
     "type": "library",
     "require": {
-        "php": "^8.5"
+        "php": "^8.5",
+        "psr/http-message": "^2.0",
+        "potter/closeable": "^0.0.1",
+        "potter/detachable": "^0.0.1",
+        "potter/rewindable": "^0.0.1",
+        "potter/stringable": "^0.0.1",
+        "potter/writeable": "^0.0.1"
     },
     "license": "MIT",
     "autoload": {

src/Potter/Stream/SeekableInterface.php

@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Potter\Stream;
+
+interface SeekableInterface 
+{
+    public function isSeekable(): bool;
+    public function seek(int $offset, int $whence = SEEK_SET): void;
+}

src/Potter/Stream/StreamInterface.php

@@ -0,0 +1,27 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Potter\Stream;
+
+use \Potter\Stringable\StringableInterface;
+use \Potter\Rewindable\RewindableInterface;
+
+use \Potter\Closeable\CloseableInterface;
+use \Potter\Detachable\DetachableInterface;
+
+use \Potter\Readable\ReadableInterface;
+use \Potter\Writeable\WriteableInterface;
+
+use \Psr\Http\Message\StreamInterface as PsrStreamInterface;
+
+interface StreamInterface extends PsrStreamInterface, StringableInterface,
+    ReadableInterface, WriteableInterface,
+    CloseableInterface, DetachableInterface,
+    RewindableInterface, SeekableInterface
+{
+    public function getSize(): ?int;
+    public function tell(): int;
+    public function eof(): bool;
+    public function getMetadata(?string $key = null);
+}