Improve locale handling

classes/Locale.php

@@ -0,0 +1,92 @@
+<?php
+/**
+ * Locale class.
+ */
+
+namespace Alltube;
+
+use Teto\HTTP\AcceptLanguage;
+
+/**
+ * Class used to represent locales.
+ */
+class Locale
+{
+    /**
+     * Locale language.
+     *
+     * @var string
+     */
+    private $language;
+
+    /**
+     * Locale region.
+     *
+     * @var string
+     */
+    private $region;
+
+    /**
+     * Locale constructor.
+     *
+     * @param string $locale ISO 15897 code
+     */
+    public function __construct($locale)
+    {
+        $parse = AcceptLanguage::parse($locale);
+        $this->language = $parse[1]['language'];
+        $this->region = $parse[1]['region'];
+    }
+
+    /**
+     * Convert the locale to a string.
+     *
+     * @return string ISO 15897 code
+     */
+    public function __toString()
+    {
+        return $this->getIso15897();
+    }
+
+    /**
+     * Get the full name of the locale.
+     *
+     * @param Locale $displayLocale Locale to get the name in
+     *
+     * @return string
+     */
+    public function getFullName(Locale $displayLocale)
+    {
+        return \Locale::getDisplayName($this->getIso15897(), $displayLocale->getIso15897());
+    }
+
+    /**
+     * Get the ISO 15897 code.
+     *
+     * @return string
+     */
+    public function getIso15897()
+    {
+        return $this->language.'_'.$this->region;
+    }
+
+    /**
+     * Get the BCP 47 code.
+     *
+     * @return string
+     */
+    public function getBcp47()
+    {
+        return $this->language.'-'.$this->region;
+    }
+
+    /**
+     * Get the ISO 3166 code.
+     *
+     * @return string
+     */
+    public function getIso3166()
+    {
+        return strtolower($this->region);
+    }
+}