refactor: replace custom CRM with Monica fork

app/Services/DavClient/UpdateSubscriptionLocalSyncToken.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace App\Services\DavClient;
+
+use App\Services\BaseService;
+use App\Models\Account\AddressBookSubscription;
+use App\Http\Controllers\DAV\Backend\CardDAV\CardDAVBackend;
+
+class UpdateSubscriptionLocalSyncToken extends BaseService
+{
+    /**
+     * Get the validation rules that apply to the service.
+     *
+     * @return array
+     */
+    public function rules()
+    {
+        return [
+            'account_id' => 'required|integer|exists:accounts,id',
+            'addressbook_subscription_id' => 'required|integer|exists:addressbook_subscriptions,id',
+        ];
+    }
+
+    /**
+     * @param  array  $data
+     * @return void
+     */
+    public function execute(array $data): void
+    {
+        $this->validate($data);
+
+        $subscription = AddressBookSubscription::where('account_id', $data['account_id'])
+            ->findOrFail($data['addressbook_subscription_id']);
+
+        $this->updateSyncToken($subscription);
+    }
+
+    /**
+     * Update the synctoken.
+     *
+     * @return void
+     */
+    private function updateSyncToken(AddressBookSubscription $subscription): void
+    {
+        $backend = app(CardDAVBackend::class)
+            ->init($subscription->user);
+
+        $token = $backend->getCurrentSyncToken($subscription->addressbook->name);
+
+        if ($token !== null) {
+            $subscription->localSyncToken = $token->id;
+            $subscription->save();
+        }
+    }
+}