Railway seed: confirm demo accounts and connect them (#5876)

createAccount() takes join form fields only, so the seed's
email_confirmed value was dropped and every demo account stayed
unconfirmed. With sys_account_hide_unconfirmed_accounts on, suggestions
leave unconfirmed accounts out, and the demo users had no connections,
so "Friend suggestions" and "Who to follow" had nobody to show.

seedPeople() confirms the demo accounts, chains them as friends and adds
a ring of follows, then queues a suggestions refresh after a
confirmation. It runs on every start, also when the content is already
there, so api.unacms.app and open previews catch up; each step skips
what is done.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

scripts/railway/seed.php

@@ -4,9 +4,10 @@
  * MIT License - https://opensource.org/licenses/MIT
  *
  * Railway: demo content for a fresh install, so production and previews are not empty.
- * Runs from entrypoint.sh when UNA_DEMO_SEED=1. Idempotent: skips everything once the
- * first demo account exists. Content goes through module services (not raw SQL), so
- * timeline events, counters and notifications are created the same way as by users.
+ * Runs from entrypoint.sh when UNA_DEMO_SEED=1. Idempotent: content is created once, and
+ * skipped once the first demo account exists; seedPeople() runs on every start and does only
+ * what is missing. Content goes through module services (not raw SQL), so timeline events,
+ * counters and notifications are created the same way as by users.
  *
  * Environment:
  *   UNA_DEMO_PASSWORD  password for the demo accounts (random if unset)
@@ -34,7 +35,58 @@ $aUsers = [
     ['name' => 'Ella Kim', 'email' => 'ella@example.com'],
 ];
 
+/**
+ * Confirm the demo accounts and connect them, so friend and follow suggestions have people to
+ * offer. Runs on every start, so sites seeded before this existed catch up.
+ * - createAccount() takes join form fields only, so it can't confirm an email, and
+ *   sys_account_hide_unconfirmed_accounts hides unconfirmed accounts from suggestions.
+ * - Friend suggestions come from mutual friends, follow suggestions from the accounts that the
+ *   people you follow follow. A chain of friends and a ring of follows give everyone both.
+ */
+function seedPeople(array $aUsers): void
+{
+    $aPersons = [];
+    $iConfirmed = 0;
+    foreach ($aUsers as $aUser) {
+        if (!($oAccount = BxDolAccount::getInstance($aUser['email'])))
+            continue;
+        if (!$oAccount->isConfirmedEmail() && $oAccount->updateEmailConfirmed(true, false))
+            $iConfirmed++;
+        foreach ($oAccount->getProfiles(false) as $iProfileId => $aProfile)
+            if ($aProfile['type'] == 'bx_persons')
+                $aPersons[] = (int)$iProfileId;
+    }
+
+    $iFriends = 0;
+    $oFriends = BxDolConnection::getObjectInstance('sys_profiles_friends');
+    for ($i = 1; $i < count($aPersons); $i++) {
+        [$iA, $iB] = [$aPersons[$i - 1], $aPersons[$i]];
+        if ($oFriends->isConnected($iA, $iB, true))
+            continue;
+        $oFriends->addConnection($iA, $iB); // request
+        $oFriends->addConnection($iB, $iA); // accept
+        $iFriends++;
+    }
+
+    $iFollows = 0;
+    $oFollows = BxDolConnection::getObjectInstance('sys_profiles_subscriptions');
+    foreach ($aPersons as $i => $iA) {
+        $iB = $aPersons[($i + 1) % count($aPersons)];
+        if ($iA != $iB && !$oFollows->isConnected($iA, $iB) && $oFollows->addConnection($iA, $iB))
+            $iFollows++;
+    }
+
+    // New connections queue a refresh themselves; a confirmation does not.
+    if ($iConfirmed)
+        foreach ($aPersons as $iProfileId)
+            BxDolRecommendation::updateData($iProfileId);
+
+    if ($iConfirmed || $iFriends || $iFollows)
+        seedLog("people: $iConfirmed confirmed, $iFriends friendships, $iFollows follows");
+}
+
 if (BxDolAccount::getInstance($aUsers[0]['email'])) {
+    seedPeople($aUsers);
     seedLog('demo content already present, skipping');
     exit(0);
 }
@@ -49,7 +101,6 @@ foreach ($aUsers as $aUser) {
         'name' => $aUser['name'],
         'email' => $aUser['email'],
         'password' => $sPassword,
-        'email_confirmed' => 1,
     ], BX_PROFILE_ACTION_AUTO, false);
     if (empty($a['account_id'])) {
         seedLog("account {$aUser['email']} failed: " . ($a['error'] ?? 'unknown'));
@@ -140,5 +191,7 @@ foreach ($aPosts as $i => [$sTitle, $sText]) {
     }
 }
 
+seedPeople($aUsers);
+
 seedLog('done: ' . count($aProfiles) . ' people, ' . ($iGroupProfileId ? 1 : 0) . ' group, ' . count($aPosts) . ' posts');
 ob_end_clean();