Add reminder about unread bookmarks

lib/adamantium/gently_remind_me.rb

@@ -0,0 +1,47 @@
+module Adamantium
+  class GentlyRemindMe
+    def call(limit:)
+      repo = Adamantium::Container["repos.post_repo"]
+      app_settings = Adamantium::Container["settings"]
+
+      bookmarks = repo.for_reminders(limit: limit)
+      bookmarks_struct = bookmarks.map do |bookmark|
+        {
+          name: bookmark.name,
+          source_url: bookmark.url,
+          url: "#{app_settings.micropub_site_url}/bookmark/#{bookmark.slug}"
+        }
+      end
+
+      body_content = ""
+      bookmarks_struct.each do |bm|
+        body_content += "#{bm[:name]} — #{bm[:source_url]} \n"
+        body_content += "    #{bm[:url]}\n"
+        body_content += "\n"
+      end
+
+      Mail.defaults do
+        delivery_method :smtp, {
+          address: app_settings.smtp_server,
+          port: 587,
+          authentication: "plain",
+          openssl_verify_mode: "peer",
+          enable_starttls_auto: true
+        }
+      end
+
+      Mail.delivery_method.settings[:user_name] = app_settings.smtp_username
+      Mail.delivery_method.settings[:password] = app_settings.smtp_password
+
+      mail = Mail.new do
+        subject "A gentle reminder"
+        body body_content
+      end
+
+      mail[:to] = app_settings.from_email
+      mail[:from] = app_settings.from_email
+
+      mail.deliver
+    end
+  end
+end