4 files changed, 42 insertions, 7 deletions
diff --git a/CMakeLists.txt b/shared/librelational_engine/CMakeLists.txt
index 98dbfc4..d22d0d0 100644
--- a/CMakeLists.txt
+++ b/shared/librelational_engine/CMakeLists.txt
@@ -1,16 +1,12 @@
 cmake_minimum_required(VERSION 3.29)
-project(relational_engine_ocaml)
-
-set(CMAKE_CXX_STANDARD 20)
+project(relational_engine)
 
 include_directories($ENV{LIBRESSL_INCLUDE_PATH})
 include_directories($ENV{MERKLECPP_INCLUDE_PATH})
-include_directories($ENV{CAML_INCLUDE_PATH})
 
-add_library(relational_engine_ocaml STATIC
-        lib/merklecpp_stubs.cpp)
+add_library(relational_engine SHARED library.cpp)
 
-target_link_libraries(relational_engine_ocaml
+target_link_libraries(relational_engine
         $ENV{LIBRESSL_LIB_PATH}/libssl.$ENV{OS_LIB_EXTENSION}
         $ENV{LIBRESSL_LIB_PATH}/libcrypto.$ENV{OS_LIB_EXTENSION}
 )
 \ No newline at end of file
diff --git a/shared/librelational_engine/flake.nix b/shared/librelational_engine/flake.nix
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/shared/librelational_engine/flake.nix
diff --git a/shared/librelational_engine/library.cpp b/shared/librelational_engine/library.cpp
new file mode 100644
index 0000000..8048486
--- /dev/null
+++ b/shared/librelational_engine/library.cpp
@@ -0,0 +1,30 @@
+#include <iostream>
+#include <merklecpp.h>
+#include <openssl/sha.h>
+#include <iomanip>
+extern "C" {
+#include "library.h"
+    extern void merkle_generate_root(char** hashes, const int n, char* root) {
+        merkle::Tree tree;
+        for (int i = 0; i < n; i++){
+            tree.insert(merkle::Hash(hashes[i]));
+        }
+        std::memcpy(root, tree.root().to_string().c_str(), HASH_SIZE);
+    }
+    extern void compute_hash(char* computed_hash, const char *content) {
+
+        unsigned char hash[SHA256_DIGEST_LENGTH];
+        SHA256_CTX sha256;
+        SHA256_Init(&sha256);
+        SHA256_Update(&sha256, content, sizeof(content));
+        SHA256_Final(hash, &sha256);
+        std::stringstream ss;
+        for (int i = 0; i < SHA256_DIGEST_LENGTH; i++)
+            ss << std::hex << std::setw(2) << std::setfill('0') << static_cast<int>(hash[i]);
+
+        std::memcpy(computed_hash, ss.str().c_str(), HASH_SIZE);
+        std::cout << "⚙️ COMPUTED HASH: " << computed_hash << std::endl;
+    }
+
+    extern int trash() { return 100; }
+}
+\ No newline at end of file
diff --git a/shared/librelational_engine/library.h b/shared/librelational_engine/library.h
new file mode 100644
index 0000000..ebf8497
--- /dev/null
+++ b/shared/librelational_engine/library.h
@@ -0,0 +1,9 @@
+#ifndef MERKLECPP_STUB_LIBRARY_H
+#define MERKLECPP_STUB_LIBRARY_H
+
+#define HASH_SIZE 64
+
+extern void merkle_generate_root(char**, const int, char*);
+extern void compute_hash(char*, const char*);
+
+#endif //MERKLECPP_STUB_LIBRARY_H