From 1ef73b88715df1ba6d0c3a992848ad488ebf9089 Mon Sep 17 00:00:00 2001
From: Coleman Watts <coleman@civicrm.org>
Date: Fri, 19 Jun 2015 13:34:35 -0400
Subject: [PATCH] CRM-16401 - Modify day of week ordering based on user prefs

---
 CRM/Core/Form/RecurringEntity.php |  9 ++++---
 CRM/Utils/Date.php                | 40 +++++++++++++++++++++----------
 2 files changed, 34 insertions(+), 15 deletions(-)

diff --git a/CRM/Core/Form/RecurringEntity.php b/CRM/Core/Form/RecurringEntity.php
index edab31c046..2fb0d75d2f 100644
--- a/CRM/Core/Form/RecurringEntity.php
+++ b/CRM/Core/Form/RecurringEntity.php
@@ -170,8 +170,9 @@ class CRM_Core_Form_RecurringEntity {
    * @param CRM_Core_Form $form
    */
   public static function buildQuickForm(&$form) {
-    // For some reason this is using the following as keys rather than the standard numeric keys returned by CRM_Utils_Date
-    $dayOfTheWeek = array(
+    // FIXME: this is using the following as keys rather than the standard numeric keys returned by CRM_Utils_Date
+    $dayOfTheWeek = array();
+    $dayKeys = array(
       'sunday',
       'monday',
       'tuesday',
@@ -180,7 +181,9 @@ class CRM_Core_Form_RecurringEntity {
       'friday',
       'saturday',
     );
-    $dayOfTheWeek = array_combine($dayOfTheWeek, CRM_Utils_Date::getAbbrWeekdayNames());
+    foreach (CRM_Utils_Date::getAbbrWeekdayNames() as $k => $label) {
+      $dayOfTheWeek[$dayKeys[$k]] = $label;
+    }
     $form->add('select', 'repetition_frequency_unit', ts('Repeats every'), CRM_Core_SelectValues::getRecurringFrequencyUnits(), FALSE, array('class' => 'required'));
     $numericOptions = CRM_Core_SelectValues::getNumericOptions(1, 30);
     $form->add('select', 'repetition_frequency_interval', NULL, $numericOptions, FALSE, array('class' => 'required'));
diff --git a/CRM/Utils/Date.php b/CRM/Utils/Date.php
index 898045b738..31c6c95763 100644
--- a/CRM/Utils/Date.php
+++ b/CRM/Utils/Date.php
@@ -168,43 +168,59 @@ class CRM_Utils_Date {
   /**
    * Return abbreviated weekday names according to the locale.
    *
+   * Array will be in localized order according to 'weekBegins' setting,
+   * but array keys will always match to:
+   * 0 => Sun
+   * 1 => Mon
+   * etc.
+   *
    * @return array
    *   0-based array with abbreviated weekday names
    *
    */
-  public static function &getAbbrWeekdayNames() {
-    static $abbrWeekdayNames;
-    if (!isset($abbrWeekdayNames)) {
+  public static function getAbbrWeekdayNames() {
+    static $days = array();
+    if (!$days) {
+      // First day of the week
+      $firstDay = CRM_Core_BAO_Setting::getItem(CRM_Core_BAO_Setting::LOCALIZATION_PREFERENCES_NAME, 'weekBegins', NULL, 0);
 
       // set LC_TIME and build the arrays from locale-provided names
       // June 1st, 1970 was a Monday
       CRM_Core_I18n::setLcTime();
-      for ($i = 0; $i < 7; $i++) {
-        $abbrWeekdayNames[$i] = strftime('%a', mktime(0, 0, 0, 6, $i, 1970));
+      for ($i = $firstDay; count($days) < 7; $i = $i > 6 ? 0 : $i + 1) {
+        $days[$i] = strftime('%a', mktime(0, 0, 0, 6, $i, 1970));
       }
     }
-    return $abbrWeekdayNames;
+    return $days;
   }
 
   /**
    * Return full weekday names according to the locale.
    *
+   * Array will be in localized order according to 'weekBegins' setting,
+   * but array keys will always match to:
+   * 0 => Sunday
+   * 1 => Monday
+   * etc.
+   *
    * @return array
    *   0-based array with full weekday names
    *
    */
-  public static function &getFullWeekdayNames() {
-    static $fullWeekdayNames;
-    if (!isset($fullWeekdayNames)) {
+  public static function getFullWeekdayNames() {
+    static $days = array();
+    if (!$days) {
+      // First day of the week
+      $firstDay = CRM_Core_BAO_Setting::getItem(CRM_Core_BAO_Setting::LOCALIZATION_PREFERENCES_NAME, 'weekBegins', NULL, 0);
 
       // set LC_TIME and build the arrays from locale-provided names
       // June 1st, 1970 was a Monday
       CRM_Core_I18n::setLcTime();
-      for ($i = 0; $i < 7; $i++) {
-        $fullWeekdayNames[$i] = strftime('%A', mktime(0, 0, 0, 6, $i, 1970));
+      for ($i = $firstDay; count($days) < 7; $i = $i > 6 ? 0 : $i + 1) {
+        $days[$i] = strftime('%A', mktime(0, 0, 0, 6, $i, 1970));
       }
     }
-    return $fullWeekdayNames;
+    return $days;
   }
 
   /**
-- 
2.25.1