1.3.0 Geburtstagslogik verbessert

zahler.php

@@ -1,59 +1,73 @@
 <?php
-function get_next_payer_username($conn, $meeting_id)
-{
-    $current_year = (int)date('Y');
 
-    // Alle zugesagten Nutzer mit paid_count
+/**
+ * Gibt den Vorschlag für den nächsten Rechnungszahler zurück.
+ * Liefert ein Array: ['username' => ..., 'is_birthday_payer' => true/false]
+ */
+function get_next_payer_info($conn, $meeting_id)
+{
+    // Meeting-Datum holen
+    $stmt = mysqli_prepare($conn, "SELECT meeting_date FROM meetings WHERE id = ?");
+    mysqli_stmt_bind_param($stmt, "i", $meeting_id);
+    mysqli_stmt_execute($stmt);
+    $meeting = mysqli_fetch_assoc(mysqli_stmt_get_result($stmt));
+    mysqli_stmt_close($stmt);
+
+    if (!$meeting) {
+        return null;
+    }
+
+    $meeting_date = $meeting['meeting_date'];
+    $current_year = (int)date('Y', strtotime($meeting_date));
+
+    // Alle ZUSAGENDEN Teilnehmer dieses Meetings
     $sql = "
         SELECT 
             u.id,
             u.username,
             u.birthday,
-            u.last_birthday_year,
-            (SELECT COUNT(*) FROM meeting_teilnehmer WHERE user_id = u.id AND paid = 1) AS paid_count
+            u.birthday_payer_pending,
+            u.regular_paid_count
         FROM meeting_teilnehmer mt
         JOIN users u ON mt.user_id = u.id
         WHERE mt.meeting_id = ? AND mt.rsvp_status = 'accepted'
         ORDER BY u.username
     ";
+
     $stmt = mysqli_prepare($conn, $sql);
     mysqli_stmt_bind_param($stmt, "i", $meeting_id);
     mysqli_stmt_execute($stmt);
     $candidates = mysqli_fetch_all(mysqli_stmt_get_result($stmt), MYSQLI_ASSOC);
     mysqli_stmt_close($stmt);
 
-    if (empty($candidates)) return null;
-
-    // Finde minimale paid_count
-    $min_paid = min(array_column($candidates, 'paid_count'));
-    $eligible = array_filter($candidates, fn($c) => $c['paid_count'] == $min_paid);
-
-    $birthday_eligible = [];
-    $others = [];
-
-    foreach ($eligible as $c) {
-        $is_birthday_payer_eligible = (
-            !empty($c['birthday'])
-            && $c['birthday'] !== '0000-00-00'
-            && $c['last_birthday_year'] != $current_year
-        );
-
-        if ($is_birthday_payer_eligible) {
-            $birthday_eligible[] = $c;
-        } else {
-            $others[] = $c;
-        }
+    if (empty($candidates)) {
+        return null;
     }
 
-    // Sortiere alphabetisch
-    $sort = fn($a, $b) => strcmp($a['username'], $b['username']);
-
-    if (!empty($birthday_eligible)) {
-        usort($birthday_eligible, $sort);
-        return $birthday_eligible[0]['username'];
+    // 🔹 PRIORITÄT 1: Geburtstags-Zahler (birthday_payer_pending = 1)
+    $birthday_candidates = array_filter($candidates, fn($c) => $c['birthday_payer_pending'] == 1);
+    if (!empty($birthday_candidates)) {
+        usort($birthday_candidates, fn($a, $b) => strcmp($a['username'], $b['username']));
+        $first = $birthday_candidates[0];
+        return [
+            'username' => $first['username'],
+            'is_birthday_payer' => true
+        ];
     }
 
-    $all = array_merge($birthday_eligible, $others);
-    usort($all, $sort);
-    return $all[0]['username'];
+    // 🔹 PRIORITÄT 2: Normale Rotation (nach regular_paid_count)
+    $min_paid = min(array_column($candidates, 'regular_paid_count'));
+    $regular_candidates = array_filter($candidates, fn($c) => $c['regular_paid_count'] == $min_paid);
+    usort($regular_candidates, fn($a, $b) => strcmp($a['username'], $b['username']));
+    $first = $regular_candidates[0];
+    return [
+        'username' => $first['username'],
+        'is_birthday_payer' => false
+    ];
+}
+
+function get_next_payer_username($conn, $meeting_id)
+{
+    $info = get_next_payer_info($conn, $meeting_id);
+    return $info ? $info['username'] : null;
 }