From ffb18c9dd66b61d45ae4cf6c1cf52fd1d86ea8a8 Mon Sep 17 00:00:00 2001
From: Oleg Kovalov <oleg@hey.com>
Date: Tue, 18 Jun 2024 14:11:18 +0200
Subject: [PATCH] feat(store): add tail header

---
 store/store.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/store/store.go b/store/store.go
index 657a22c7..bd4cb3af 100644
--- a/store/store.go
+++ b/store/store.go
@@ -51,6 +51,8 @@ type Store[H header.Header[H]] struct {
 	writesDn chan struct{}
 	// writeHead maintains the current write head
 	writeHead atomic.Pointer[H]
+	// tailHeader maintains the current tail header.
+	tailHeader atomic.Pointer[H]
 	// pending keeps headers pending to be written in one batch
 	pending *batch[H]
 
@@ -121,6 +123,8 @@ func (s *Store[H]) Init(ctx context.Context, initial H) error {
 		return err
 	}
 
+	s.tailHeader.Store(&initial)
+
 	log.Infow("initialized head", "height", initial.Height(), "hash", initial.Hash())
 	s.heightSub.Pub(initial)
 	return nil