fix: patch up connection and types

Author: mychidarko

src/Redis.php

@@ -143,7 +143,7 @@ protected function parseSaveOptions()
      * @link https://redis.io/commands/set
      * @since If you're using Redis >= 2.6.12, you can pass extended options as explained in example
      */
-    public function set($key, $value = "", $timeout = null)
+    public function set($key, $value = "", $timeout = 0)
     {
         return $this->connection()->set($key, $value, $timeout);
     }
@@ -245,7 +245,7 @@ public function close()
      */
     public function connection(): Adapter
     {
-        if (!$this->redis) {
+        if (!$this->redis->connection()) {
             $this->redis->connect($this->config);
         }
 

src/Redis/Adapter.php

@@ -80,6 +80,13 @@ public function ping(?string $message = null);
      */
     public function errors(): array;
 
+    /**
+     * Get the redis connection
+     *
+     * @return mixed
+     */
+    public function connection();
+
     /**
      * Close the redis connection
      *

src/Redis/Native.php

@@ -89,6 +89,11 @@ public function errors(): array
         return $this->errors;
     }
 
+    public function connection()
+    {
+        return $this->redis;
+    }
+
     public function close()
     {
         $this->redis->close();

src/Redis/Predis.php

@@ -86,6 +86,11 @@ public function errors(): array
         return $this->errors;
     }
 
+    public function connection()
+    {
+        return $this->redis;
+    }
+
     public function close()
     {
         $this->redis->disconnect();