Merge branch 'i18n'

* i18n:
  hide lang switcher for now
  fixes
  minor
  i18n tweaks
  i18n: Improve language detection
  i18n: Implement getAllCultures
  i18n: Send a POST request instead of an AJAX request
  i18n: Add some comments
  Nav: Add a (temporary) dropdown to allow user to change language
  i18n: Store user culture in session

controller/Controller.class.php

@@ -94,6 +94,8 @@ class Controller
     $router->any('/list/subscribe', 'MailActions::executeSubscribe');
     $router->get('/list/confirm/{hash}', 'MailActions::executeConfirm');
 
+    $router->post('/set-culture', 'i18nActions::setCulture');
+
     $permanentRedirects = [
       '/lbry-osx-latest.dmg'         => '/get',
       '/lbry-linux-latest.deb'       => '/get',

controller/Session.class.php

@@ -6,7 +6,8 @@ class Session
         KEY_DOWNLOAD_ALLOWED = 'beta_download_allowed2',
         KEY_PREFINERY_USER_ID = 'prefinery_user_id',
         KEY_PREFINER_USED_CUSTOM_CODE = 'prefinery_used_custom_code',
-        KEY_LIST_SUB_ERROR = 'list_error';
+        KEY_LIST_SUB_ERROR = 'list_error',
+        KEY_USER_CULTURE = 'user_culture';
 
   public static function init()
   {

controller/action/NavActions.class.php

@@ -23,8 +23,11 @@ class NavActions extends Actions
 
   public static function prepareGlobalItemsPartial(array $vars)
   {
-    $vars += ['selectedItem' => static::getNavUri()];
-    return $vars;
+    return $vars += [
+      'selectedItem' => static::getNavUri(),
+      'selectedCulture' => i18n::getLanguage() . '_' . i18n::getCountry(),
+      'cultures' => i18n::getAllCultures()
+    ];
   }
 
   public static function execute400(array $vars)

controller/action/i18nActions.class.php

@@ -0,0 +1,29 @@
+<?php
+
+class i18nActions extends Actions
+{
+  public static function setCulture()
+  {
+    $culture = Request::getPostParam('culture');
+
+    // Validate
+    if ($culture && !in_array($culture, i18n::getAllCultures()))
+    {
+      $culture = null;
+    }
+
+    if ($culture)
+    {
+      Session::set(Session::KEY_USER_CULTURE, $culture);
+    }
+    else
+    {
+      Session::unsetKey(Session::KEY_USER_CULTURE);
+    }
+
+    //if session changes update domain
+    //english language = www
+
+    return Controller::redirect(Request::getHttpHeader('Referer', '/'));
+  }
+}

lib/i18n.class.php

@@ -13,28 +13,16 @@ class i18n
   protected static
     $language = null,
     $translations = [],
-    $country = null;
+    $country = null,
+    $cultures = ['pt_PT', 'en_US'];
 
-  public static function register($culture = null) /*needed to trigger class include, presumably setup would happen here*/
+  public static function register() /*needed to trigger class include, presumably setup would happen here*/
   {
-    if ($culture === null)
-    {
-      $urlTokens = Request::getHost() ? explode('.', Request::getHost()) : [];
-      $code = $urlTokens ? reset($urlTokens) : 'en';
-      switch($code)
-      {
-        case 'pt':
-          $culture = 'pt_PT'; break;
-        case 'en':
-        case 'www':
-        default:
-          $culture = 'en_US';
-      }
-    }
+    $culture = static::deduceCulture();
 
     list($language, $country) = explode('_', $culture);
     static::$language = $language;
-    static::$country = $country;
+    static::$country  = $country;
 
     setlocale(LC_MONETARY, $culture . '.UTF-8');
   }
@@ -49,6 +37,11 @@ class i18n
     return static::$country;
   }
 
+  public static function getAllCultures()
+  {
+    return static::$cultures;
+  }
+
   public static function formatCurrency($amount, $currency = 'USD')
   {
     return '<span class="formatted-currency">' . money_format('%.2n', $amount) . '</span>';
@@ -56,7 +49,7 @@ class i18n
 
   public static function formatCredits($amount)
   {
-    return '<span class="formatted-credits">' .  (is_numeric($amount) ? number_format($amount, 1) : $amount) . ' LBC</span>';
+    return '<span class="formatted-credits">' . (is_numeric($amount) ? number_format($amount, 1) : $amount) . ' LBC</span>';
   }
 
   public static function translate($token, $language = null)
@@ -65,10 +58,11 @@ class i18n
     if (!isset(static::$translations[$language]))
     {
       $path = ROOT_DIR . '/data/i18n/' . $language . '.yaml';
+
       static::$translations[$language] = file_exists($path) ? Spyc::YAMLLoadString(file_get_contents($path)) : [];
     }
     $scope = static::$translations[$language];
-    foreach(explode('.', $token) as $level)
+    foreach (explode('.', $token) as $level)
     {
       if (isset($scope[$level]))
       {
@@ -85,4 +79,60 @@ class i18n
     }
     return $scope ?: $token;
   }
+
+  protected static function deduceCulture()
+  {
+    $candidates = [];
+
+    //url trumps everything
+    $urlTokens = Request::getHost() ? explode('.', Request::getHost()) : [];
+    $code      = $urlTokens ? reset($urlTokens) : null;
+    if ($code !== 'www')
+    {
+      $candidates[] = $code;
+    }
+
+    //then session
+    $candidates[] = Session::get(Session::KEY_USER_CULTURE);
+
+    // then headers
+    // http://www.thefutureoftheweb.com/blog/use-accept-language-header
+    if (Request::getHttpHeader('Accept-Language'))
+    {
+      // break up string into pieces (languages and q factors)
+      preg_match_all('/([a-z]{1,8}(-[a-z]{1,8})?)\s*(;\s*q\s*=\s*(1|0\.[0-9]+))?/i', Request::getHttpHeader('Accept-Language'), $languages);
+
+      if (isset($languages[1]) && count($languages[1]))
+      {
+        // create a list like "en" => 0.8
+        $langs = array_combine($languages[1], $languages[4]);
+
+        // set default to 1 for any without q factor
+        foreach ($langs as $lang => $val)
+        {
+          if ($val === '')
+          {
+            $langs[$lang] = 1;
+          }
+        }
+
+        arsort($langs, SORT_NUMERIC);
+
+        $candidates = array_merge($candidates, array_keys($langs));
+      }
+    }
+
+    foreach ($candidates as $candidate)
+    {
+      foreach (static::getAllCultures() as $culture)
+      {
+        if ($candidate === $culture || substr($culture, 0, 2) === $candidate)
+        {
+          return $culture;
+        }
+      }
+    }
+
+    return 'en_US';
+  }
 }

view/template/nav/_globalItems.php

@@ -21,4 +21,17 @@
 </div>
 <div class="control-item no-label-desktop">
   <a href="https://github.com/lbryio"><span class="btn-label">GitHub</span><span class="icon-github icon-fw"></span></a>
-</div>
+</div>
+<?php /*
+<div class="control-item no-label-desktop">
+  <form action="/set-culture" method="POST">
+    <select id="language-dropdown" name="culture">
+      <?php foreach ($cultures as $culture): ?>
+        <option value="<?php echo $culture ?>" <?php echo $culture == $selectedCulture ? 'selected="selected"' : '' ?>>
+          <?php echo $culture ?>
+        </option>
+      <?php endforeach ?>
+    </select>
+  </form>
+</div>
+*/ ?>

web/index.php

@@ -25,8 +25,8 @@ if (!IS_PRODUCTION)
 
 try
 {
-  i18n::register();
   Session::init();
+  i18n::register();
   if (!IS_PRODUCTION)
   {
     View::compileCss();

web/js/global.js

@@ -162,4 +162,8 @@ $(document).ready(function() {
       });
     });
   }
-});
+
+  $('#language-dropdown').on('change', function() {
+    $(this).closest('form').submit();
+  });
+});