From 3063608df6ff1668f683d9d22c57fea29d728d0d Mon Sep 17 00:00:00 2001
From: Marcos Magueta <maguetamarcos@gmail.com>
Date: Tue, 11 Nov 2025 00:00:43 -0300
Subject: migrating to erlang to attach to mnesia

---
 shared/librelational_engine/CMakeLists.txt | 12 -----
 shared/librelational_engine/library.cpp    | 73 ------------------------------
 shared/librelational_engine/library.h      | 10 ----
 3 files changed, 95 deletions(-)
 delete mode 100644 shared/librelational_engine/CMakeLists.txt
 delete mode 100644 shared/librelational_engine/library.cpp
 delete mode 100644 shared/librelational_engine/library.h

(limited to 'shared/librelational_engine')

diff --git a/shared/librelational_engine/CMakeLists.txt b/shared/librelational_engine/CMakeLists.txt
deleted file mode 100644
index d22d0d0..0000000
--- a/shared/librelational_engine/CMakeLists.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-cmake_minimum_required(VERSION 3.29)
-project(relational_engine)
-
-include_directories($ENV{LIBRESSL_INCLUDE_PATH})
-include_directories($ENV{MERKLECPP_INCLUDE_PATH})
-
-add_library(relational_engine SHARED library.cpp)
-
-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/library.cpp b/shared/librelational_engine/library.cpp
deleted file mode 100644
index cab8f93..0000000
--- a/shared/librelational_engine/library.cpp
+++ /dev/null
@@ -1,73 +0,0 @@
-#include <iostream>
-#include <merklecpp.h>
-#include <openssl/sha.h>
-#include <iomanip>
-#include <fstream>
-#include <iterator>
-
-#include <sys/stat.h>
-
-std::vector<uint8_t> read_tree(const char* tree_path) {
-    std::ifstream file(tree_path, std::ios::binary);
-    file.unsetf(std::ios::skipws);
-    file.seekg(0, std::ios::end);
-    const std::streampos file_size = file.tellg();
-    file.seekg(0, std::ios::beg);
-    std::vector<uint8_t> v;
-    v.reserve(file_size);
-    v.insert(v.begin(), std::istream_iterator<uint8_t>(file), std::istream_iterator<uint8_t>());
-    return v;
-}
-
-void write_tree(const char* tree_path, const std::vector<uint8_t>& serialized_tree) {
-    std::ofstream out(tree_path, std::ios::out | std::ios::binary);
-    out.write(reinterpret_cast<const char*>(serialized_tree.data()), serialized_tree.size());
-    out.close();
-}
-
-extern "C" {
-#include "library.h"
-    extern void register_to_merkle(const char* tree_path, const char* computed_hash) {
-        struct stat st;
-        if (stat(tree_path, &st) == 0) {
-            const std::vector<uint8_t> tree_bytes = read_tree(tree_path);
-            merkle::Tree tree;
-            tree.deserialise(tree_bytes);
-            const merkle::Tree::Hash hash(computed_hash);
-            tree.insert(hash);
-            std::vector<uint8_t> target;
-            tree.serialise(target);
-            write_tree(tree_path, target);
-        } else {
-            merkle::Tree::Hash hash(computed_hash);
-            merkle::Tree tree;
-            tree.insert(hash);
-            std::vector<uint8_t> target;
-            tree.serialise(target);
-            write_tree(tree_path, target);
-        }
-    }
-    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; }
-}
diff --git a/shared/librelational_engine/library.h b/shared/librelational_engine/library.h
deleted file mode 100644
index 16734be..0000000
--- a/shared/librelational_engine/library.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#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*);
-extern void register_to_merkle(const char*, const char*);
-
-#endif //MERKLECPP_STUB_LIBRARY_H
-- 
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