From 9dbcd6a5c8a9cb5c29867dd450b2af8934616f56 Mon Sep 17 00:00:00 2001
From: ailurux <ailuruxx@gmail.com>
Date: Thu, 30 May 2024 13:49:56 +1000
Subject: Fix prev/next behaviour on database iterator Fixes issue with
 apparent duplicated tracks in the infinite list

---
 src/tangara/database/database.cpp | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

(limited to 'src/tangara/database/database.cpp')

diff --git a/src/tangara/database/database.cpp b/src/tangara/database/database.cpp
index 4064c3ed..f7cba610 100644
--- a/src/tangara/database/database.cpp
+++ b/src/tangara/database/database.cpp
@@ -704,9 +704,8 @@ Iterator::Iterator(std::shared_ptr<Database> db, const IndexKey::Header& header)
   key_ = {
       .prefix = {prefix.data(), prefix.size(), &memory::kSpiRamResource},
       .key = {},
-      .offset = 0,
+      .offset = -1,
   };
-  iterate(key_);
 }
 
 auto Iterator::value() const -> const std::optional<Record>& {
@@ -715,7 +714,11 @@ auto Iterator::value() const -> const std::optional<Record>& {
 
 auto Iterator::next() -> void {
   SearchKey new_key = key_;
-  new_key.offset = 1;
+  if (new_key.offset == -1) {
+    new_key.offset = 0;
+  } else {
+    new_key.offset = 1;
+  }
   iterate(new_key);
 }
 
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