Split out feed parsing from document

WIP - still moving things around...

src/util/refresh.php

@@ -3,6 +3,7 @@
 use BitBadger\Documents\DocumentException;
 use BitBadger\Documents\SQLite\Find;
 use FeedReaderCentral\Data;
+use FeedReaderCentral\Domain\Feed as FeedDocument;
 use FeedReaderCentral\Domain\Table;
 use FeedReaderCentral\Domain\User;
 use FeedReaderCentral\Feed;
@@ -36,12 +37,11 @@ function display_help(): never
 
 function refresh_all(): void
 {
-    $db    = Data::getConnection();
-    $users = [];
+    $db = Data::getConnection();
 
     try {
-        $feeds = Feed::retrieveAll();
-        foreach ($feeds->items() as /** @var Feed $feed */ $feed) {
+        $users = [];
+        iterator_apply(Feed::retrieveAll()->items(), function (FeedDocument $feed) use ($db, $users) {
             $result  = Feed::refreshFeed($feed->id, $feed->url, $db);
             $userKey = "$feed->user_id";
             if (!key_exists($userKey, $users)) $users[$userKey] = Find::byId(Table::USER, $feed->user_id, User::class);
@@ -51,7 +51,7 @@ function refresh_all(): void
             } else {
                 printfn('OK  (%s) %s', $users[$userKey]->email, $feed->url);
             }
-        }
+        });
         printfn(PHP_EOL . 'All feeds refreshed');
     } catch (DocumentException $ex) {
         printfn("ERR $ex");