Add Outlook synchronization features: implement real-time sync check, save sync preferences, and reconcile tasks with Outlook events

api/planner.php

@@ -252,6 +252,114 @@ try {
         exit;
     }
 
+    // 6. Realtime Outlook synchronisatie & controle op gewijzigde/gewiste items
+    if ($action === 'check_outlook_sync') {
+        $rawInput = file_get_contents('php://input');
+        $data = !empty($rawInput) ? (json_decode($rawInput, true) ?: []) : [];
+        if (empty($data)) {
+            $data = $_GET;
+        }
+
+        $planDate = !empty($data['plan_date']) ? trim($data['plan_date']) : $today;
+        $weekStart = !empty($data['week_start']) ? trim($data['week_start']) : date('Y-m-d', strtotime('monday this week', strtotime($planDate)));
+        $weekEnd = !empty($data['week_end']) ? trim($data['week_end']) : date('Y-m-d', strtotime('sunday this week', strtotime($planDate)));
+        $lastHash = !empty($data['last_hash']) ? trim($data['last_hash']) : '';
+
+        // Controleer of Outlook gekoppeld is
+        $stmtInt = $db->prepare("SELECT * FROM integrations WHERE user_id = ? AND provider = 'OUTLOOK' AND is_enabled = 1");
+        $stmtInt->execute([$user['id']]);
+        $integration = $stmtInt->fetch();
+
+        if (!$integration || empty($integration['access_token']) || !empty($integration['is_demo_mode'])) {
+            echo json_encode([
+                'success'     => true,
+                'connected'   => false,
+                'has_changes' => false,
+                'last_sync'   => date('H:i:s'),
+            ]);
+            exit;
+        }
+
+        // Haal live afspraken op voor de hele week
+        $weekLiveEvents = microsoft_fetch_events_range($user['id'], $weekStart, $weekEnd);
+
+        // Voer reconciliatie uit met de Fociz tasks tabel
+        $reconcileRes = microsoft_reconcile_tasks_with_outlook($user['id'], $weekStart, $weekEnd, $weekLiveEvents);
+
+        // Haal de geactualiseerde taken voor deze dag op
+        $stmtPlan = $db->prepare("SELECT id FROM daily_plans WHERE user_id = ? AND plan_date = ?");
+        $stmtPlan->execute([$user['id'], $planDate]);
+        $planId = $stmtPlan->fetchColumn();
+
+        $tasks = [];
+        if ($planId) {
+            $stmtTasks = $db->prepare("
+                SELECT id, title, priority, time_block_start, time_block_end, duration_minutes, is_completed, status, source, external_id
+                FROM tasks
+                WHERE user_id = ? AND (daily_plan_id = ? " . ($planDate === $today ? "OR daily_plan_id IS NULL" : "") . ")
+                ORDER BY is_completed ASC, priority ASC, time_block_start ASC, created_at DESC
+            ");
+            $stmtTasks->execute([$user['id'], $planId]);
+            $tasks = $stmtTasks->fetchAll();
+        }
+
+        // Filter events voor de geselecteerde dag die geen gesynchroniseerde Fociz taak zijn
+        $syncedIds = [];
+        foreach ($tasks as $t) {
+            if (!empty($t['external_id'])) {
+                $syncedIds[$t['external_id']] = true;
+            }
+        }
+
+        $dayEvents = [];
+        foreach ($weekLiveEvents as $e) {
+            if (($e['date'] ?? '') === $planDate) {
+                if (!empty($e['id']) && isset($syncedIds[$e['id']])) {
+                    continue;
+                }
+                $dayEvents[] = [
+                    'id'      => $e['id'],
+                    'start'   => $e['start'],
+                    'end'     => $e['end'],
+                    'subject' => $e['subject'],
+                ];
+            }
+        }
+
+        // Bereken status hash voor de dag
+        $hashData = [
+            'events' => $dayEvents,
+            'tasks'  => array_map(function($t) {
+                return [
+                    'id'               => $t['id'],
+                    'title'            => $t['title'],
+                    'time_block_start' => $t['time_block_start'],
+                    'time_block_end'   => $t['time_block_end'],
+                    'is_completed'     => $t['is_completed'],
+                ];
+            }, $tasks)
+        ];
+        $currentHash = md5(json_encode($hashData));
+
+        $hasChanges = ($reconcileRes['deleted'] > 0 || $reconcileRes['updated'] > 0);
+        if (!empty($lastHash) && $lastHash !== $currentHash) {
+            $hasChanges = true;
+        }
+
+        echo json_encode([
+            'success'       => true,
+            'connected'     => true,
+            'has_changes'   => $hasChanges,
+            'hash'          => $currentHash,
+            'deleted_count' => $reconcileRes['deleted'],
+            'updated_count' => $reconcileRes['updated'],
+            'events_count'  => count($dayEvents),
+            'tasks_count'   => count($tasks),
+            'last_sync'     => date('H:i:s'),
+        ]);
+        exit;
+    }
+
     echo json_encode(['error' => 'Onbekende actie']);
 } catch (Exception $e) {
     http_response_code(500);

includes/integrations/microsoft.php

@@ -594,3 +594,223 @@ function microsoft_disconnect(int $userId): bool {
     }
 }
 
+/**
+ * Haalt één specifieke afspraak op uit Microsoft Outlook via Graph API.
+ * Retourneert:
+ * - array met event data indien gevonden (HTTP 200)
+ * - false indien definitief verwijderd / geannuleerd (HTTP 404 of isCancelled)
+ * - null indien er een netwerk/server error optreedt (beschermt taken tegen onterecht wissen)
+ */
+function microsoft_get_single_event(int $userId, string $eventId): false|array|null {
+    if (empty($eventId)) {
+        return false;
+    }
+
+    $token = microsoft_get_valid_token($userId);
+    if (!$token) {
+        return null;
+    }
+
+    $url = MS_GRAPH_BASE_URL . '/me/events/' . urlencode($eventId) . '?' . http_build_query([
+        '$select' => 'id,subject,start,end,isCancelled',
+    ]);
+
+    $response = fociz_http_request($url, [
+        'method'  => 'GET',
+        'headers' => [
+            'Authorization' => "Bearer {$token}",
+            'Accept'        => 'application/json',
+            'Prefer'        => 'outlook.timezone="Europe/Amsterdam"',
+        ],
+        'timeout' => 8,
+    ]);
+
+    if ($response['status'] === 401) {
+        $freshToken = microsoft_get_valid_token($userId, true);
+        if ($freshToken && $freshToken !== $token) {
+            $token = $freshToken;
+            $response = fociz_http_request($url, [
+                'method'  => 'GET',
+                'headers' => [
+                    'Authorization' => "Bearer {$token}",
+                    'Accept'        => 'application/json',
+                    'Prefer'        => 'outlook.timezone="Europe/Amsterdam"',
+                ],
+                'timeout' => 8,
+            ]);
+        }
+    }
+
+    if ($response['status'] === 404) {
+        return false; // Definitief niet meer gevonden in Outlook
+    }
+
+    if ($response['status'] === 200 && is_array($response['json'])) {
+        $e = $response['json'];
+        if (!empty($e['isCancelled'])) {
+            return false; // Geannuleerd
+        }
+
+        $rawStart = $e['start']['dateTime'] ?? '';
+        $rawEnd   = $e['end']['dateTime'] ?? '';
+
+        $eventDate = !empty($rawStart) ? substr($rawStart, 0, 10) : '';
+        $startTime = '';
+        $endTime   = '';
+
+        if (!empty($rawStart) && preg_match('/T(\d{2}:\d{2})/', $rawStart, $m)) {
+            $startTime = $m[1];
+        }
+        if (!empty($rawEnd) && preg_match('/T(\d{2}:\d{2})/', $rawEnd, $m)) {
+            $endTime = $m[1];
+        }
+
+        return [
+            'id'        => $e['id'],
+            'subject'   => !empty($e['subject']) ? $e['subject'] : '(Geen onderwerp)',
+            'date'      => $eventDate,
+            'start'     => $startTime ?: '09:00',
+            'end'       => $endTime ?: '10:00',
+            'start_raw' => $rawStart,
+            'end_raw'   => $rawEnd,
+        ];
+    }
+
+    return null;
+}
+
+/**
+ * Synchroniseert en reconciled Fociz taken met de live Microsoft Outlook agenda.
+ *
+ * - Als een gekoppelde afspraak in Outlook is verwijderd of geannuleerd, wordt de taak in Fociz gewist.
+ * - Als een afspraak in Outlook van tijd, datum of titel is gewijzigd, wordt de taak in Fociz bijgewerkt.
+ *
+ * @param int $userId
+ * @param string $startDate Datumbereik begin (Y-m-d)
+ * @param string $endDate   Datumbereik einde (Y-m-d)
+ * @param array $liveEvents Reeds opgehaalde Outlook events via microsoft_fetch_events_range
+ * @return array ['deleted' => int, 'updated' => int]
+ */
+function microsoft_reconcile_tasks_with_outlook(int $userId, string $startDate, string $endDate, array $liveEvents): array {
+    $db = get_db_connection();
+    $deletedCount = 0;
+    $updatedCount = 0;
+
+    // 1. Indexeer live events op id
+    $liveEventMap = [];
+    foreach ($liveEvents as $evt) {
+        if (!empty($evt['id'])) {
+            $liveEventMap[$evt['id']] = $evt;
+        }
+    }
+
+    // 2. Haal alle taken op voor deze gebruiker in dit datumbereik met een external_id (gekoppeld aan Outlook)
+    $stmt = $db->prepare("
+        SELECT t.id, t.title, t.time_block_start, t.time_block_end, t.duration_minutes, t.external_id, dp.plan_date, dp.id as daily_plan_id
+        FROM tasks t
+        JOIN daily_plans dp ON t.daily_plan_id = dp.id
+        WHERE t.user_id = ? 
+          AND t.source = 'OUTLOOK' 
+          AND t.external_id IS NOT NULL 
+          AND t.external_id != ''
+          AND dp.plan_date BETWEEN ? AND ?
+    ");
+    $stmt->execute([$userId, $startDate, $endDate]);
+    $syncedTasks = $stmt->fetchAll();
+
+    foreach ($syncedTasks as $task) {
+        $extId = $task['external_id'];
+
+        if (isset($liveEventMap[$extId])) {
+            // Het event bestaat in het huidige week/datumbereik!
+            $evt = $liveEventMap[$extId];
+
+            $dateChanged  = (!empty($evt['date']) && $evt['date'] !== $task['plan_date']);
+            $titleChanged = (!empty($evt['subject']) && $evt['subject'] !== $task['title']);
+            $startChanged = (!empty($evt['start']) && $evt['start'] !== $task['time_block_start']);
+            $endChanged   = (!empty($evt['end']) && $evt['end'] !== $task['time_block_end']);
+
+            if ($dateChanged || $titleChanged || $startChanged || $endChanged) {
+                $targetPlanId = (int)$task['daily_plan_id'];
+
+                // Als datum gewijzigd is, verplaats naar de daily_plan van de nieuwe datum
+                if ($dateChanged) {
+                    $stmtPlan = $db->prepare("
+                        INSERT INTO daily_plans (user_id, plan_date)
+                        VALUES (?, ?)
+                        ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id)
+                    ");
+                    $stmtPlan->execute([$userId, $evt['date']]);
+                    $targetPlanId = (int)$db->lastInsertId();
+                }
+
+                // Bereken duur
+                $newStart = !empty($evt['start']) ? $evt['start'] : $task['time_block_start'];
+                $newEnd   = !empty($evt['end']) ? $evt['end'] : $task['time_block_end'];
+                $newDuration = (int)$task['duration_minutes'];
+                if (!empty($newStart) && !empty($newEnd)) {
+                    $durCalc = (strtotime("2000-01-01 {$newEnd}") - strtotime("2000-01-01 {$newStart}")) / 60;
+                    if ($durCalc > 0) {
+                        $newDuration = (int)$durCalc;
+                    }
+                }
+
+                $newTitle = !empty($evt['subject']) ? $evt['subject'] : $task['title'];
+
+                $updateStmt = $db->prepare("
+                    UPDATE tasks 
+                    SET daily_plan_id = ?, title = ?, time_block_start = ?, time_block_end = ?, duration_minutes = ?
+                    WHERE id = ? AND user_id = ?
+                ");
+                $updateStmt->execute([$targetPlanId, $newTitle, $newStart, $newEnd, $newDuration, $task['id'], $userId]);
+                $updatedCount++;
+            }
+        } else {
+            // Event niet gevonden in het weekbereik!
+            // Controleer specifiek of het event in Outlook gewist is of naar een andere week verplaatst
+            $singleEvent = microsoft_get_single_event($userId, $extId);
+
+            if ($singleEvent === false) {
+                // Event is definitief verwijderd of geannuleerd in Outlook!
+                $delStmt = $db->prepare("DELETE FROM tasks WHERE id = ? AND user_id = ?");
+                $delStmt->execute([$task['id'], $userId]);
+                $deletedCount++;
+            } elseif (is_array($singleEvent)) {
+                // Event bestaat nog, maar staat op een andere datum (buiten huidig bereik)
+                $newDate = $singleEvent['date'];
+                if (!empty($newDate)) {
+                    $stmtPlan = $db->prepare("
+                        INSERT INTO daily_plans (user_id, plan_date)
+                        VALUES (?, ?)
+                        ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id)
+                    ");
+                    $stmtPlan->execute([$userId, $newDate]);
+                    $newPlanId = (int)$db->lastInsertId();
+
+                    $newStart = $singleEvent['start'];
+                    $newEnd   = $singleEvent['end'];
+                    $newDuration = (int)$task['duration_minutes'];
+                    if (!empty($newStart) && !empty($newEnd)) {
+                        $durCalc = (strtotime("2000-01-01 {$newEnd}") - strtotime("2000-01-01 {$newStart}")) / 60;
+                        if ($durCalc > 0) $newDuration = (int)$durCalc;
+                    }
+
+                    $updateStmt = $db->prepare("
+                        UPDATE tasks 
+                        SET daily_plan_id = ?, title = ?, time_block_start = ?, time_block_end = ?, duration_minutes = ?
+                        WHERE id = ? AND user_id = ?
+                    ");
+                    $updateStmt->execute([$newPlanId, $singleEvent['subject'], $newStart, $newEnd, $newDuration, $task['id'], $userId]);
+                    $updatedCount++;
+                }
+            }
+        }
+    }
+
+    return [
+        'deleted' => $deletedCount,
+        'updated' => $updatedCount,
+    ];
+}
+
+

planner.php

@@ -42,49 +42,7 @@ $dutchShortMonths = ['', 'jan', 'feb', 'mrt', 'apr', 'mei', 'jun', 'jul', 'aug',
 $formattedSelectedDate = $dutchFullDays[(int)date('N', $selectedTs)] . ' ' . date('j', $selectedTs) . ' ' . $dutchMonths[(int)date('n', $selectedTs)] . ' ' . date('Y', $selectedTs);
 $formattedWeekRange = date('j', $mondayTs) . ' ' . $dutchShortMonths[(int)date('n', $mondayTs)] . ' – ' . date('j', $sundayTs) . ' ' . $dutchShortMonths[(int)date('n', $sundayTs)] . ' ' . date('Y', $sundayTs);
 
-// 1. Haal dagplanning op of maak aan voor $selectedDate
+// 1. Haal integratiestatussen op
-$stmtPlan = $db->prepare("SELECT * FROM daily_plans WHERE user_id = ? AND plan_date = ?");
-$stmtPlan->execute([$userId, $selectedDate]);
-$dailyPlan = $stmtPlan->fetch();
-
-if (!$dailyPlan) {
-    $defaultGoal = ($selectedDate === $today) ? 'Mijn belangrijkste doel van vandaag behalen' : 'Focusdoel voor deze dag bepalen';
-    $stmtCreatePlan = $db->prepare("
-        INSERT INTO daily_plans (user_id, plan_date, focus_goal) 
-        VALUES (?, ?, ?)
-    ");
-    $stmtCreatePlan->execute([$userId, $selectedDate, $defaultGoal]);
-    $planId = (int)$db->lastInsertId();
-    $dailyPlan = ['id' => $planId, 'plan_date' => $selectedDate, 'focus_goal' => $defaultGoal, 'notes' => ''];
-}
-
-// 2. Haal taken op voor de geselecteerde dag
-$stmtTasks = $db->prepare("
-    SELECT * FROM tasks 
-    WHERE user_id = ? AND (daily_plan_id = ? " . ($selectedDate === $today ? "OR daily_plan_id IS NULL" : "") . ")
-    ORDER BY is_completed ASC, priority ASC, time_block_start ASC, created_at DESC
-");
-$stmtTasks->execute([$userId, $dailyPlan['id']]);
-$tasks = $stmtTasks->fetchAll();
-
-// 3. Haal weekstatistieken voor taken op (aantal per dag)
-$stmtWeekTasks = $db->prepare("
-    SELECT dp.plan_date, COUNT(t.id) as total_tasks, SUM(CASE WHEN t.is_completed = 1 THEN 1 ELSE 0 END) as completed_tasks
-    FROM daily_plans dp
-    LEFT JOIN tasks t ON t.daily_plan_id = dp.id AND t.user_id = ?
-    WHERE dp.user_id = ? AND dp.plan_date BETWEEN ? AND ?
-    GROUP BY dp.plan_date
-");
-$stmtWeekTasks->execute([$userId, $userId, $weekStart, $weekEnd]);
-$weekTaskStats = [];
-foreach ($stmtWeekTasks->fetchAll() as $row) {
-    $weekTaskStats[$row['plan_date']] = [
-        'total' => (int)$row['total_tasks'],
-        'completed' => (int)$row['completed_tasks'],
-    ];
-}
-
-// 4. Haal integratiestatussen op
 $stmtInt = $db->prepare("SELECT * FROM integrations WHERE user_id = ?");
 $stmtInt->execute([$userId]);
 $userIntegrations = [];
@@ -93,6 +51,9 @@ foreach ($stmtInt->fetchAll() as $row) {
 }
 
 $isOutlookConnected = !empty($userIntegrations['OUTLOOK']['access_token']) && empty($userIntegrations['OUTLOOK']['is_demo_mode']);
+$outlookIntegrationSettings = json_decode($userIntegrations['OUTLOOK']['settings'] ?? '{}', true) ?: [];
+$syncIntervalSeconds = isset($outlookIntegrationSettings['sync_interval_seconds']) ? (int)$outlookIntegrationSettings['sync_interval_seconds'] : 30;
+
 $weekOutlookEvents = [];
 $isLiveOutlook = false;
 
@@ -100,6 +61,9 @@ if ($isOutlookConnected) {
     // Haal afspraken op voor het volledige datumbereik van de week
     $weekOutlookEvents = microsoft_fetch_events_range($userId, $weekStart, $weekEnd);
     $isLiveOutlook = true;
+
+    // Synchroniseer / reconcilieer Fociz taken direct met actuele Outlook data
+    microsoft_reconcile_tasks_with_outlook($userId, $weekStart, $weekEnd, $weekOutlookEvents);
 } else {
     // Demo data indien Microsoft Outlook nog niet gekoppeld is
     $weekOutlookEvents = [
@@ -136,6 +100,48 @@ if ($isOutlookConnected) {
     ];
 }
 
+// 2. Haal dagplanning op of maak aan voor $selectedDate
+$stmtPlan = $db->prepare("SELECT * FROM daily_plans WHERE user_id = ? AND plan_date = ?");
+$stmtPlan->execute([$userId, $selectedDate]);
+$dailyPlan = $stmtPlan->fetch();
+
+if (!$dailyPlan) {
+    $defaultGoal = ($selectedDate === $today) ? 'Mijn belangrijkste doel van vandaag behalen' : 'Focusdoel voor deze dag bepalen';
+    $stmtCreatePlan = $db->prepare("
+        INSERT INTO daily_plans (user_id, plan_date, focus_goal) 
+        VALUES (?, ?, ?)
+    ");
+    $stmtCreatePlan->execute([$userId, $selectedDate, $defaultGoal]);
+    $planId = (int)$db->lastInsertId();
+    $dailyPlan = ['id' => $planId, 'plan_date' => $selectedDate, 'focus_goal' => $defaultGoal, 'notes' => ''];
+}
+
+// 3. Haal taken op voor de geselecteerde dag (vers bijgewerkt na eventuele reconciliatie)
+$stmtTasks = $db->prepare("
+    SELECT * FROM tasks 
+    WHERE user_id = ? AND (daily_plan_id = ? " . ($selectedDate === $today ? "OR daily_plan_id IS NULL" : "") . ")
+    ORDER BY is_completed ASC, priority ASC, time_block_start ASC, created_at DESC
+");
+$stmtTasks->execute([$userId, $dailyPlan['id']]);
+$tasks = $stmtTasks->fetchAll();
+
+// 4. Haal weekstatistieken voor taken op (aantal per dag)
+$stmtWeekTasks = $db->prepare("
+    SELECT dp.plan_date, COUNT(t.id) as total_tasks, SUM(CASE WHEN t.is_completed = 1 THEN 1 ELSE 0 END) as completed_tasks
+    FROM daily_plans dp
+    LEFT JOIN tasks t ON t.daily_plan_id = dp.id AND t.user_id = ?
+    WHERE dp.user_id = ? AND dp.plan_date BETWEEN ? AND ?
+    GROUP BY dp.plan_date
+");
+$stmtWeekTasks->execute([$userId, $userId, $weekStart, $weekEnd]);
+$weekTaskStats = [];
+foreach ($stmtWeekTasks->fetchAll() as $row) {
+    $weekTaskStats[$row['plan_date']] = [
+        'total' => (int)$row['total_tasks'],
+        'completed' => (int)$row['completed_tasks'],
+    ];
+}
+
 // Groepeer Outlook afspraken per datum
 $outlookEventsByDate = [];
 foreach ($weekOutlookEvents as $evt) {
@@ -188,6 +194,30 @@ foreach ($dayOutlookEvents as $evt) {
     $displayedOutlookEvents[] = $evt;
 }
 
+// Bereken initiële status-hash voor achtergrondsynchronisatie
+$dayEventsForHash = [];
+foreach ($displayedOutlookEvents as $e) {
+    $dayEventsForHash[] = [
+        'id'      => $e['id'] ?? '',
+        'start'   => $e['start'] ?? '',
+        'end'     => $e['end'] ?? '',
+        'subject' => $e['subject'] ?? '',
+    ];
+}
+$tasksForHash = array_map(function($t) {
+    return [
+        'id'               => $t['id'],
+        'title'            => $t['title'],
+        'time_block_start' => $t['time_block_start'],
+        'time_block_end'   => $t['time_block_end'],
+        'is_completed'     => $t['is_completed'],
+    ];
+}, $tasks);
+$initialSyncHash = md5(json_encode([
+    'events' => $dayEventsForHash,
+    'tasks'  => $tasksForHash
+]));
+
 // 6. Tijdlijn uren & Werkdag Standaarden (Release v1.4)
 $workdayStartStr = $workdaySettings['workday_start'] ?? '08:30';
 $workdayEndStr   = $workdaySettings['workday_end'] ?? '17:30';
@@ -250,11 +280,12 @@ for ($h = $startHour; $h <= $endHour; $h++) {
             <!-- Integratie Status Badges -->
             <div class="flex flex-wrap items-center gap-2">
                 <?php if ($isOutlookConnected): ?>
-                    <div class="flex items-center space-x-2 px-3 py-1.5 rounded-xl bg-sky-50 dark:bg-sky-500/10 border border-sky-200/80 dark:border-sky-500/20 text-sky-800 dark:text-sky-300 text-xs font-medium shadow-2xs">
+                    <div id="outlookSyncBadge" class="flex items-center space-x-2 px-3 py-1.5 rounded-xl bg-sky-50 dark:bg-sky-500/10 border border-sky-200/80 dark:border-sky-500/20 text-sky-800 dark:text-sky-300 text-xs font-medium shadow-2xs transition">
-                        <span class="w-2 h-2 rounded-full bg-sky-500 animate-pulse"></span>
+                        <span id="outlookSyncDot" class="w-2 h-2 rounded-full bg-sky-500"></span>
-                        <span>Outlook 365 Live</span>
+                        <span id="outlookSyncStatusText">Outlook 365 Live</span>
-                        <button onclick="location.reload()" title="Agenda Verversen" class="p-0.5 text-sky-600 hover:text-sky-900 dark:text-sky-400 dark:hover:text-white rounded transition">
+                        <span id="outlookLastSyncText" class="text-[10px] text-sky-600/70 dark:text-sky-400/60 font-mono hidden sm:inline">(synced <span id="syncTimeDisplay"><?= date('H:i') ?></span>)</span>
-                            <i data-lucide="refresh-cw" class="w-3 h-3"></i>
+                        <button id="manualSyncBtn" onclick="triggerManualSync()" title="Nu handmatig synchroniseren met Outlook" class="p-0.5 hover:bg-sky-100 dark:hover:bg-sky-500/20 text-sky-600 hover:text-sky-900 dark:text-sky-400 dark:hover:text-white rounded transition cursor-pointer">
+                            <i id="manualSyncIcon" data-lucide="refresh-cw" class="w-3 h-3"></i>
                         </button>
                     </div>
                 <?php else: ?>
@@ -844,6 +875,7 @@ function toggleTimer() {
         clearInterval(timerInterval);
         isRunning = false;
         document.getElementById('timerToggleText').innerText = 'Hervatten';
+        saveTimerStateBeforeReload();
     } else {
         isRunning = true;
         document.getElementById('timerToggleText').innerText = 'Pauzeren';
@@ -854,6 +886,7 @@ function toggleTimer() {
             } else {
                 clearInterval(timerInterval);
                 isRunning = false;
+                sessionStorage.removeItem('fociz_timer_state');
                 document.getElementById('timerToggleText').innerText = 'Start Focus';
                 alert('Focus sessie voltooid! Neem even een korte pauze.');
             }
@@ -865,10 +898,59 @@ function resetTimer() {
     clearInterval(timerInterval);
     isRunning = false;
     timerSeconds = totalDuration;
+    sessionStorage.removeItem('fociz_timer_state');
     document.getElementById('timerToggleText').innerText = 'Start Focus';
     updateTimerDisplay();
 }
 
+function saveTimerStateBeforeReload() {
+    try {
+        if (isRunning || timerSeconds < totalDuration) {
+            const state = {
+                isRunning: isRunning,
+                timerSeconds: timerSeconds,
+                totalDuration: totalDuration,
+                timestamp: Date.now()
+            };
+            sessionStorage.setItem('fociz_timer_state', JSON.stringify(state));
+        }
+    } catch (e) {
+        console.error('Kon timer status niet opslaan:', e);
+    }
+}
+
+function restoreTimerStateIfAny() {
+    try {
+        const raw = sessionStorage.getItem('fociz_timer_state');
+        if (!raw) return;
+        sessionStorage.removeItem('fociz_timer_state');
+        const state = JSON.parse(raw);
+        if (state && typeof state.timerSeconds === 'number') {
+            totalDuration = state.totalDuration || (pomodoroFocusTime * 60);
+            let remaining = state.timerSeconds;
+            if (state.isRunning && state.timestamp) {
+                const elapsed = Math.floor((Date.now() - state.timestamp) / 1000);
+                remaining = Math.max(0, remaining - elapsed);
+            }
+            timerSeconds = remaining;
+            updateTimerDisplay();
+
+            if (state.isRunning && timerSeconds > 0) {
+                toggleTimer(); // Hervat timer
+            } else if (!state.isRunning && timerSeconds < totalDuration) {
+                const toggleBtnText = document.getElementById('timerToggleText');
+                if (toggleBtnText) toggleBtnText.innerText = 'Hervatten';
+            }
+        }
+    } catch (e) {
+        console.error('Kon timer status niet herstellen:', e);
+    }
+}
+
+window.addEventListener('beforeunload', () => {
+    saveTimerStateBeforeReload();
+});
+
 function selectFocusTask(title) {
     document.getElementById('activeTaskDisplay').innerText = title;
 }
@@ -1076,6 +1158,94 @@ async function aiSmartSchedule(btn) {
         }
     }
 }
+// --- Outlook 365 Auto-Sync & Achtergrond Controle ---
+const isOutlookConnected = <?= $isOutlookConnected ? 'true' : 'false' ?>;
+let currentSyncHash = '<?= $initialSyncHash ?? '' ?>';
+const syncIntervalSeconds = <?= (int)($syncIntervalSeconds ?? 30) ?>;
+const weekStartDate = '<?= $weekStart ?>';
+const weekEndDate = '<?= $weekEnd ?>';
+let isSyncCheckActive = false;
+
+async function checkOutlookChanges(isManual = false) {
+    if (!isOutlookConnected || isSyncCheckActive) return;
+    isSyncCheckActive = true;
+
+    const icon = document.getElementById('manualSyncIcon');
+    const dot = document.getElementById('outlookSyncDot');
+    const statusText = document.getElementById('outlookSyncStatusText');
+
+    if (icon) icon.classList.add('animate-spin');
+    if (dot) {
+        dot.classList.remove('bg-sky-500');
+        dot.classList.add('bg-amber-500', 'animate-ping');
+    }
+    if (isManual && statusText) {
+        statusText.innerText = 'Synchroniseren...';
+    }
+
+    try {
+        const res = await fetch(`/api/planner.php?action=check_outlook_sync&plan_date=${encodeURIComponent(activePlannerDate)}&week_start=${encodeURIComponent(weekStartDate)}&week_end=${encodeURIComponent(weekEndDate)}&last_hash=${encodeURIComponent(currentSyncHash)}`);
+        if (!res.ok) throw new Error('Netwerkfout bij synchronisatie controle');
+        const data = await res.json();
+
+        if (data.success && data.connected) {
+            if (data.last_sync) {
+                const timeEl = document.getElementById('syncTimeDisplay');
+                if (timeEl) timeEl.innerText = data.last_sync.substring(0, 5);
+            }
+
+            if (data.has_changes) {
+                if (statusText) statusText.innerText = 'Wijzigingen bijwerken...';
+                saveTimerStateBeforeReload();
+                setTimeout(() => {
+                    location.reload();
+                }, 400);
+                return;
+            } else {
+                currentSyncHash = data.hash;
+                if (statusText) statusText.innerText = 'Outlook 365 Live';
+            }
+        }
+    } catch (err) {
+        console.warn('Outlook achtergrond controle:', err);
+        if (statusText) statusText.innerText = 'Outlook 365 Live';
+    } finally {
+        isSyncCheckActive = false;
+        if (icon) icon.classList.remove('animate-spin');
+        if (dot) {
+            dot.classList.remove('bg-amber-500', 'animate-ping');
+            dot.classList.add('bg-sky-500');
+        }
+    }
+}
+
+function triggerManualSync() {
+    checkOutlookChanges(true);
+}
+
+// Initialisatie bij pagina-inladen
+document.addEventListener('DOMContentLoaded', () => {
+    restoreTimerStateIfAny();
+
+    if (isOutlookConnected) {
+        if (syncIntervalSeconds > 0) {
+            setInterval(() => {
+                checkOutlookChanges(false);
+            }, syncIntervalSeconds * 1000);
+        }
+
+        // Direct controleren wanneer gebruiker terugkeert naar het tabblad / venster
+        window.addEventListener('focus', () => {
+            checkOutlookChanges(false);
+        });
+
+        document.addEventListener('visibilitychange', () => {
+            if (document.visibilityState === 'visible') {
+                checkOutlookChanges(false);
+            }
+        });
+    }
+});
 </script>
 
 <?php require_once __DIR__ . '/includes/footer.php'; ?>

profile.php

@@ -48,6 +48,23 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
         exit;
     }
 
+    // 2b. Outlook synchronisatievoorkeuren opslaan
+    elseif ($action === 'save_outlook_settings') {
+        $syncInterval = (int)($_POST['sync_interval_seconds'] ?? 30);
+
+        $stmtExisting = $db->prepare("SELECT settings FROM integrations WHERE user_id = ? AND provider = 'OUTLOOK'");
+        $stmtExisting->execute([$userId]);
+        $existing = $stmtExisting->fetch();
+        $settings = json_decode($existing['settings'] ?? '{}', true) ?: [];
+        $settings['sync_interval_seconds'] = $syncInterval;
+
+        $stmtUp = $db->prepare("UPDATE integrations SET settings = ? WHERE user_id = ? AND provider = 'OUTLOOK'");
+        $stmtUp->execute([json_encode($settings), $userId]);
+
+        $message = "Uw Microsoft Outlook synchronisatievoorkeur is succesvol opgeslagen.";
+        $messageType = 'success';
+    }
+
     // 3. Jira Opslaan & Testen
     elseif ($action === 'save_jira') {
         $companyDomain = jira_get_company_domain();
@@ -462,6 +479,32 @@ require_once __DIR__ . '/includes/header.php';
                 </div>
             </div>
 
+            <form method="POST" class="mt-4 p-4 rounded-xl bg-slate-50/70 dark:bg-slate-900/60 border border-slate-200/80 dark:border-slate-800 flex flex-col sm:flex-row sm:items-center justify-between gap-4">
+                <input type="hidden" name="action" value="save_outlook_settings">
+                <div class="space-y-1">
+                    <label for="sync_interval_seconds" class="text-xs font-bold text-slate-900 dark:text-white flex items-center space-x-1.5">
+                        <i data-lucide="refresh-cw" class="w-3.5 h-3.5 text-sky-500"></i>
+                        <span>Automatische Agenda Synchronisatie</span>
+                    </label>
+                    <p class="text-[11px] text-slate-500 dark:text-slate-400 leading-relaxed">
+                        Bepaalt hoe vaak het dagplanningscherm in de achtergrond controleert op gewijzigde of verwijderde Outlook afspraken.
+                    </p>
+                </div>
+                <div class="flex items-center space-x-2">
+                    <?php $currentInterval = (int)($outlookSettings['sync_interval_seconds'] ?? 30); ?>
+                    <select id="sync_interval_seconds" name="sync_interval_seconds" class="px-3 py-2 rounded-xl border border-slate-300 dark:border-slate-700 bg-white dark:bg-slate-800 text-slate-900 dark:text-white text-xs focus:ring-2 focus:ring-sky-500 focus:outline-hidden">
+                        <option value="15" <?= $currentInterval === 15 ? 'selected' : '' ?>>Elke 15 seconden (Real-time)</option>
+                        <option value="30" <?= $currentInterval === 30 ? 'selected' : '' ?>>Elke 30 seconden (Aanbevolen)</option>
+                        <option value="60" <?= $currentInterval === 60 ? 'selected' : '' ?>>Elke 60 seconden (1 minuut)</option>
+                        <option value="120" <?= $currentInterval === 120 ? 'selected' : '' ?>>Elke 2 minuten</option>
+                        <option value="0" <?= $currentInterval === 0 ? 'selected' : '' ?>>Handmatig (en bij vensterfocus)</option>
+                    </select>
+                    <button type="submit" class="px-4 py-2 rounded-xl bg-sky-600 hover:bg-sky-500 text-white font-semibold text-xs transition shadow-2xs whitespace-nowrap cursor-pointer">
+                        Opslaan
+                    </button>
+                </div>
+            </form>
+
             <div class="mt-4 p-3.5 rounded-xl bg-teal-50 dark:bg-teal-500/10 border border-teal-200 dark:border-teal-500/20 text-teal-800 dark:text-teal-300 text-xs flex items-center justify-between">
                 <div class="flex items-center space-x-2">
                     <i data-lucide="check-circle" class="w-4 h-4 text-teal-600 dark:text-teal-400 flex-shrink-0"></i>