added predis and eseye back in.

vendor/web-token/jwt-core/AlgorithmManager.php

@@ -0,0 +1,80 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2014-2020 Spomky-Labs
+ *
+ * This software may be modified and distributed under the terms
+ * of the MIT license.  See the LICENSE file for details.
+ */
+
+namespace Jose\Component\Core;
+
+use function array_key_exists;
+use InvalidArgumentException;
+
+class AlgorithmManager
+{
+    /**
+     * @var array
+     */
+    private $algorithms = [];
+
+    /**
+     * @param Algorithm[] $algorithms
+     */
+    public function __construct(array $algorithms)
+    {
+        foreach ($algorithms as $algorithm) {
+            $this->add($algorithm);
+        }
+    }
+
+    /**
+     * Returns true if the algorithm is supported.
+     *
+     * @param string $algorithm The algorithm
+     */
+    public function has(string $algorithm): bool
+    {
+        return array_key_exists($algorithm, $this->algorithms);
+    }
+
+    /**
+     * Returns the list of names of supported algorithms.
+     *
+     * @return string[]
+     */
+    public function list(): array
+    {
+        return array_keys($this->algorithms);
+    }
+
+    /**
+     * Returns the algorithm if supported, otherwise throw an exception.
+     *
+     * @param string $algorithm The algorithm
+     *
+     * @throws InvalidArgumentException if the algorithm is not supported
+     */
+    public function get(string $algorithm): Algorithm
+    {
+        if (!$this->has($algorithm)) {
+            throw new InvalidArgumentException(sprintf('The algorithm "%s" is not supported.', $algorithm));
+        }
+
+        return $this->algorithms[$algorithm];
+    }
+
+    /**
+     * Adds an algorithm to the manager.
+     */
+    public function add(Algorithm $algorithm): void
+    {
+        $name = $algorithm->name();
+        $this->algorithms[$name] = $algorithm;
+    }
+}