From b63ebb59b319b089ce91275c3e8dc584c37c0350 Mon Sep 17 00:00:00 2001
From: Oliver Davies <oliver@oliverdavies.uk>
Date: Mon, 20 Aug 2018 14:03:55 +0100
Subject: [PATCH] Add Addresses class

Fixes #11
---
 src/Helpers/Addresses.php | 42 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 src/Helpers/Addresses.php

diff --git a/src/Helpers/Addresses.php b/src/Helpers/Addresses.php
new file mode 100644
index 0000000..a31710e
--- /dev/null
+++ b/src/Helpers/Addresses.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Opdavies\GmailFilterBuilder\Helpers;
+
+/**
+ * A helper class for loading addresses from separate files.
+ */
+class Addresses
+{
+    /**
+     * The name of the default directory containing the address files.
+     */
+    const DIRECTORY_NAME = '.gmail-filters';
+
+    /**
+     * Load addresses from a file.
+     *
+     * @param string $filename The filename to load.
+     *
+     * @return array
+     */
+    public static function load($filename = 'my-addresses.php')
+    {
+        if (file_exists($file = (new static())->getDirectoryPath() . $filename)) {
+            return include $file;
+        }
+
+        return [];
+    }
+
+    /**
+     * Get the directory name containing the addresses file.
+     *
+     * Defaults to a .gmail-filters directory within the user's home directory.
+     *
+     * @return string
+     */
+    protected function getDirectoryPath()
+    {
+        return getenv('HOME') . DIRECTORY_SEPARATOR . self::DIRECTORY_NAME . DIRECTORY_SEPARATOR;
+    }
+}