Create a token to count the number of sent daily

...emails

config/sync/core.extension.yml

@@ -46,6 +46,7 @@ module:
   metatag_open_graph: 0
   metatag_twitter_cards: 0
   node: 0
+  opd_daily_emails: 0
   options: 0
   page_cache: 0
   path: 0

config/sync/views.view.daily_email_archive.yml

@@ -277,7 +277,7 @@ display:
           plugin_id: text
           empty: false
           content:
-            value: '<p>This is an archive of the 820+ email messages I have sent to <a href="/daily">my daily mailing list</a> since the 12th of August, 2022. Enjoy!</p>'
+            value: '<p>This is an archive of the [opd-daily-emails:email-count] email messages I have sent to <a href="/daily">my daily mailing list</a> since the 12th of August, 2022. Enjoy!</p>'
             format: basic_html
           tokenize: false
       footer: {  }

modules/opd_daily_emails/opd_daily_emails.info.yml

@@ -0,0 +1,4 @@
+name: Daily Emails
+type: module
+core_version_requirement: ^11
+package: oliverdavies.uk

modules/opd_daily_emails/opd_daily_emails.module

@@ -0,0 +1,51 @@
+<?php
+
+declare(strict_types=1);
+
+use Drupal\Core\Render\BubbleableMetadata;
+
+/**
+ * Implements hook_token_info().
+ */
+function opd_daily_emails_token_info(): array {
+  $tokens = [];
+
+  $type = [
+    'description' => t('Tokens related to daily emails.'),
+    'name' => t('Daily emails'),
+  ];
+
+  $tokens['email-count'] = [
+    'description' => t('The number of sent daily emails.'),
+    'name' => t('Daily email count'),
+  ];
+
+  return [
+    'tokens' => [
+      'opd-daily-emails' => $tokens,
+    ],
+    'types' => [
+      'opd-daily-emails' => $type,
+    ],
+  ];
+}
+
+/**
+ * Implements hook_tokens().
+ */
+function opd_daily_emails_tokens($type, $tokens, array $data, array $options, BubbleableMetadata $bubbleableMetadata) : array {
+  $replacements = [];
+
+  if ($type === 'opd-daily-emails') {
+    foreach ($tokens as $name => $original) {
+      switch ($name) {
+        case 'email-count':
+          $replacements[$original] = 822;
+          break;
+      }
+    }
+  }
+
+  return $replacements;
+}
+