From 2086ab09b8d89c27f524d82a68b9a2035ea02436 Mon Sep 17 00:00:00 2001
From: jacqueline <me@jacqueline.id.au>
Date: Tue, 24 Oct 2023 16:29:46 +1100
Subject: Implement incremental updates of database indexes

This makes rescanning the library *so* much faster. Yay!
---
 src/database/include/index.hpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'src/database/include/index.hpp')

diff --git a/src/database/include/index.hpp b/src/database/include/index.hpp
index 838eff31..13de952d 100644
--- a/src/database/include/index.hpp
+++ b/src/database/include/index.hpp
@@ -46,6 +46,8 @@ struct IndexKey {
     // an index consists of { kArtist, kAlbum, kTitle }, and we are at depth = 2
     // then this may contain hash(hash("Jacqueline"), "My Cool Album").
     std::uint64_t components_hash;
+
+    bool operator==(const Header&) const = default;
   };
   Header header;
 
@@ -58,7 +60,9 @@ struct IndexKey {
   std::optional<TrackId> track;
 };
 
-auto Index(const IndexInfo&, const Track&, leveldb::WriteBatch*) -> bool;
+auto Index(const IndexInfo&, const Track&)
+    -> std::vector<std::pair<IndexKey, std::pmr::string>>;
+
 auto ExpandHeader(const IndexKey::Header&,
                   const std::optional<std::pmr::string>&) -> IndexKey::Header;
 
-- 
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