// ======================================================================
// \title  CfdpCfg.hpp
// \author Brian Campuzano
// \brief  F Prime CFDP configuration constants
// ======================================================================

#include <config/FppConstantsAc.hpp>

namespace Svc {
namespace Ccsds {
namespace Cfdp {

// ==================================================================
// Protocol Configuration
// ==================================================================

/**
 *  @brief RX chunks per transaction (per channel)
 *
 *  @par Description:
 *       Number of chunks per transaction per channel (RX).
 *
 * RX CHUNKS -
 * For Class 2 CFDP receive transactions, the receiver must track which file segments
 * have been successfully received. A chunk represents a contiguous range (offset, size)
 * of received file data. By tracking received chunks, the receiver can identify gaps
 * in the file data and generate NAK PDUs to request retransmission of missing segments.
 *
 * (array size must be NumChannels)
 * CFDP_CHANNEL_NUM_RX_CHUNKS_PER_TRANSACTION is an array for each channel indicating
 * the number of chunks per transaction to track received file segments. This enables
 * gap detection and NAK generation for reliable Class 2 transfers.
 *
 *  @par Limits:
 *
 */
#define CFDP_CHANNEL_NUM_RX_CHUNKS_PER_TRANSACTION {NakMaxSegments, NakMaxSegments}

/**
 *  @brief TX chunks per transaction (per channel)
 *
 *  @par Description:
 *       Number of chunks per transaction per channel (TX).
 *
 * TX CHUNKS -
 * For Class 2 CFDP transmit transactions, the sender must track which file segments
 * the receiver has requested via NAK PDUs. Each chunk represents a gap (offset, size)
 * that needs to be retransmitted.
 *
 * (array size must be NumChannels)
 * CFDP_CHANNEL_NUM_TX_CHUNKS_PER_TRANSACTION is an array for each channel indicating
 * the number of chunks to track NAK segment requests from the receiver per transaction.
 * This allows the sender to queue and retransmit the requested missing file data.
 *
 *  @par Limits:
 *
 */
#define CFDP_CHANNEL_NUM_TX_CHUNKS_PER_TRANSACTION {NakMaxSegments, NakMaxSegments}

// ==================================================================
// Miscellaneous
// ==================================================================

/**
 * @brief Macro type for Entity id that is used in printf style formatting
 *
 * @note This must match the size of CfdpEntityId as defined in CfdpCfg.fpp
 */
#define CFDP_PRI_ENTITY_ID PRIu32

/**
 * @brief Macro type for transaction sequences that is used in printf style formatting
 *
 * @note This must match the size of CfdpTransactionSeq as defined in CfdpCfg.fpp
 */
#define CFDP_PRI_TRANSACTION_SEQ PRIu32

}  // namespace Cfdp
}  // namespace Ccsds
}  // namespace Svc