Add status expiration

app/services/update_status_expiration_service.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class UpdateStatusExpirationService < BaseService
+  SCAN_EXPIRATION_RE = /#exp((\d.\d|\d)+)([dms]+)/
+
+  def call(status)
+    existing_expiration = ScheduledExpirationStatus.find_by(status: status)
+    existing_expiration.destroy! if existing_expiration
+
+    expiration = status.text.scan(SCAN_EXPIRATION_RE).first
+    return if !expiration
+
+    expiration_num = expiration[0].to_f
+    expiration_option = expiration[1]
+
+    expired_at = Time.now.utc + (expiration_option == 'd' ? expiration_num.days : expiration_option == 's' ? expiration_num.seconds : expiration_num.minutes)
+    ScheduledExpirationStatus.create!(account: status.account, status: status, scheduled_at: expired_at)
+  end
+end