1 files changed, 61 insertions, 0 deletions
diff --git a/archive/2025/summer/bsc_karidas/include/LogEntry.hpp b/archive/2025/summer/bsc_karidas/include/LogEntry.hpp
new file mode 100644
index 000000000..4af355741
--- /dev/null
+++ b/archive/2025/summer/bsc_karidas/include/LogEntry.hpp
@@ -0,0 +1,61 @@
+#ifndef LOG_ENTRY_HPP
+#define LOG_ENTRY_HPP
+
+#include <string>
+#include <chrono>
+#include <vector>
+#include <memory>
+#include <cstdint>
+
+class LogEntry
+{
+public:
+    enum class ActionType
+    {
+        CREATE,
+        READ,
+        UPDATE,
+        DELETE,
+    };
+
+    LogEntry();
+
+    LogEntry(ActionType actionType,
+             std::string dataLocation,
+             std::string dataControllerId,
+             std::string dataProcessorId,
+             std::string dataSubjectId,
+             std::vector<uint8_t> payload = std::vector<uint8_t>());
+
+    std::vector<uint8_t> serialize() &&;
+    std::vector<uint8_t> serialize() const &;
+    bool deserialize(std::vector<uint8_t> &&data);
+
+    static std::vector<uint8_t> serializeBatch(std::vector<LogEntry> &&entries);
+    static std::vector<LogEntry> deserializeBatch(std::vector<uint8_t> &&batchData);
+
+    ActionType getActionType() const { return m_actionType; }
+    std::string getDataLocation() const { return m_dataLocation; }
+    std::string getDataControllerId() const { return m_dataControllerId; }
+    std::string getDataProcessorId() const { return m_dataProcessorId; }
+    std::string getDataSubjectId() const { return m_dataSubjectId; }
+    std::chrono::system_clock::time_point getTimestamp() const { return m_timestamp; }
+    const std::vector<uint8_t> &getPayload() const { return m_payload; }
+
+private:
+    // Helper methods for binary serialization
+    void appendToVector(std::vector<uint8_t> &vec, const void *data, size_t size) const;
+    void appendStringToVector(std::vector<uint8_t> &vec, const std::string &str) const;
+    void appendStringToVector(std::vector<uint8_t> &vec, std::string &&str);
+    bool extractStringFromVector(std::vector<uint8_t> &vec, size_t &offset, std::string &str);
+
+    ActionType m_actionType;                           // Type of GDPR operation
+    std::string m_dataLocation;                        // Location of the data being operated on
+    std::string m_dataControllerId;                    // ID of the entity controlling the data
+    std::string m_dataProcessorId;                     // ID of the entity performing the operation
+    std::string m_dataSubjectId;                       // ID of the data subject
+    std::chrono::system_clock::time_point m_timestamp; // When the operation occurred
+    std::vector<uint8_t> m_payload;                    // optional extra bytes
+};
+
+#endif
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