1 files changed, 0 insertions, 71 deletions
diff --git a/src/MultigroupCodec.cpp b/src/MultigroupCodec.cpp
deleted file mode 100644
index 0d0cf14..0000000
--- a/src/MultigroupCodec.cpp
+++ /dev/null
@@ -1,71 +0,0 @@
-#include "MultigroupCodec.h"
-
-#include "Merkle.h"
-
-#include <map>
-
-namespace nt::MultigroupCodec {
-    // A relation with zero tuples reports an empty merkle_root externally.
-    // The merkle tree's payload type is fixed-width Hash32, so the codec
-    // maps "" ↔ the all-zero hash. The collision probability with a real
-    // SHA256 hitting all-zero (2^-256) is treated as unreachable.
-    static nt::Hash32 encode_payload(const std::string& hex) {
-        if (hex.empty())
-            return nt::Hash32{};
-        return nt::hex_to_bin(hex);
-    }
-
-    static std::string decode_payload(const nt::Hash32& bin) {
-        static const nt::Hash32 zero{};
-        if (bin == zero)
-            return "";
-        return nt::bin_to_hex(bin);
-    }
-
-    std::string Build(IStorageBackend& store, const std::vector<RelationEntry>& relations) {
-        std::map<std::string, std::string> canonical;
-        for (const auto& [name, root_hex] : relations)
-            canonical[name] = root_hex;
-
-        std::string root;
-        for (const auto& [name, root_hex] : canonical)
-            root = nt::Merkle<std::string>::Insert(store, root, name, encode_payload(root_hex));
-        return root;
-    }
-
-    std::vector<RelationEntry> List(IStorageBackend& store, const std::string& root_hex) {
-        std::vector<RelationEntry> out;
-        constexpr size_t kPageSize = 1024;
-        size_t offset = 0;
-        while (true) {
-            auto page = nt::Merkle<std::string>::Page(store, root_hex, offset, kPageSize);
-            if (page.empty())
-                break;
-            for (auto& entry : page)
-                out.emplace_back(std::move(entry.key), decode_payload(entry.payload));
-            if (page.size() < kPageSize)
-                break;
-            offset += page.size();
-        }
-        return out;
-    }
-
-    std::string InsertOne(IStorageBackend& store, const std::string& root_hex,
-                          const std::string& relation_name, const std::string& relation_root_hex) {
-        return nt::Merkle<std::string>::Insert(store, root_hex, relation_name,
-                                               encode_payload(relation_root_hex));
-    }
-
-    std::string RemoveOne(IStorageBackend& store, const std::string& root_hex,
-                          const std::string& relation_name) {
-        return nt::Merkle<std::string>::Remove(store, root_hex, relation_name);
-    }
-
-    std::string Lookup(IStorageBackend& store, const std::string& root_hex,
-                       const std::string& relation_name) {
-        auto found = nt::Merkle<std::string>::Get(store, root_hex, relation_name);
-        if (!found)
-            return "";
-        return decode_payload(*found);
-    }
-} // namespace nt::MultigroupCodec