Add basic methods

src/Filter.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace Opdavies\GmailFilterBuilder;
+
+class Filter
+{
+    public function has($value)
+    {
+        return ['hasTheWord' => $value];
+    }
+
+    public function from()
+    {
+        return ['from' =>  func_get_args()];
+    }
+
+    public function label($label)
+    {
+        return ['label' => $label];
+    }
+
+    public function archive()
+    {
+        return ['shouldArchive' => 'true'];
+    }
+
+    public function labelAndArchive($label)
+    {
+        return $this->label($label) + $this->archive();
+    }
+
+    public function spam()
+    {
+        return [
+            'shouldSpam' => 'true',
+            'shouldNeverSpam' => 'false',
+        ];
+    }
+
+    public function neverSpam()
+    {
+        return [
+            'shouldSpam' => 'false',
+            'shouldNeverSpam' => 'true',
+        ];
+    }
+
+    public function trash()
+    {
+        return ['shouldTrash' => 'true'];
+    }
+}