/*
 * Copyright 2013-2020 Software Radio Systems Limited
 *
 * This file is part of srsLTE.
 *
 * srsLTE is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * srsLTE is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * A copy of the GNU Affero General Public License can be found in
 * the LICENSE file in the top-level directory of this distribution
 * and at http://www.gnu.org/licenses/.
 *
 */

#ifndef SRSENB_DUMMY_CLASSES_H
#define SRSENB_DUMMY_CLASSES_H

#include "srslte/interfaces/enb_interfaces.h"

namespace srsenb {

class mac_dummy : public mac_interface_rrc
{
public:
  int  cell_cfg(const std::vector<sched_interface::cell_cfg_t>& cell_cfg) override { return 0; }
  void reset() override {}
  int  ue_cfg(uint16_t rnti, sched_interface::ue_cfg_t* cfg) override { return 0; }
  int  ue_rem(uint16_t rnti) override { return 0; }
  int  ue_set_crnti(uint16_t temp_crnti, uint16_t crnti, sched_interface::ue_cfg_t* cfg) override { return 0; }
  int  bearer_ue_cfg(uint16_t rnti, uint32_t lc_id, sched_interface::ue_bearer_cfg_t* cfg) override { return 0; }
  int  bearer_ue_rem(uint16_t rnti, uint32_t lc_id) override { return 0; }
  void phy_config_enabled(uint16_t rnti, bool enabled) override {}
  void write_mcch(asn1::rrc::sib_type2_s* sib2, asn1::rrc::sib_type13_r9_s* sib13, asn1::rrc::mcch_msg_s* mcch) override
  {}
  uint16_t reserve_new_crnti(const sched_interface::ue_cfg_t& ue_cfg) override { return last_rnti++; }

  uint16_t last_rnti = 70;
};

class rlc_dummy : public rlc_interface_rrc
{
public:
  void clear_buffer(uint16_t rnti) override {}
  void add_user(uint16_t rnti) override {}
  void rem_user(uint16_t rnti) override {}
  void add_bearer(uint16_t rnti, uint32_t lcid, srslte::rlc_config_t cnfg) override {}
  void add_bearer_mrb(uint16_t rnti, uint32_t lcid) override {}
  void del_bearer(uint16_t rnti, uint32_t lcid) override {}
  void write_sdu(uint16_t rnti, uint32_t lcid, srslte::unique_byte_buffer_t sdu) override {}
  bool has_bearer(uint16_t rnti, uint32_t lcid) override { return false; }
  bool suspend_bearer(uint16_t rnti, uint32_t lcid) override { return true; }
  bool resume_bearer(uint16_t rnti, uint32_t lcid) override { return true; }
  void reestablish(uint16_t rnti) override {}
};

class pdcp_dummy : public pdcp_interface_rrc
{
public:
  void reset(uint16_t rnti) override {}
  void add_user(uint16_t rnti) override {}
  void rem_user(uint16_t rnti) override {}
  void write_sdu(uint16_t rnti, uint32_t lcid, srslte::unique_byte_buffer_t sdu) override {}
  void add_bearer(uint16_t rnti, uint32_t lcid, srslte::pdcp_config_t cnfg) override {}
  void del_bearer(uint16_t rnti, uint32_t lcid) override {}
  void config_security(uint16_t rnti, uint32_t lcid, srslte::as_security_config_t sec_cfg_) override {}
  void enable_integrity(uint16_t rnti, uint32_t lcid) override {}
  void enable_encryption(uint16_t rnti, uint32_t lcid) override {}
  bool get_bearer_state(uint16_t rnti, uint32_t lcid, srslte::pdcp_lte_state_t* state) override { return true; }
  bool set_bearer_state(uint16_t rnti, uint32_t lcid, const srslte::pdcp_lte_state_t& state) override { return true; }
};

class s1ap_dummy : public s1ap_interface_rrc
{
public:
  void initial_ue(uint16_t rnti, asn1::s1ap::rrc_establishment_cause_e cause, srslte::unique_byte_buffer_t pdu) override
  {}
  void initial_ue(uint16_t                              rnti,
                  asn1::s1ap::rrc_establishment_cause_e cause,
                  srslte::unique_byte_buffer_t          pdu,
                  uint32_t                              m_tmsi,
                  uint8_t                               mmec) override
  {}

  void write_pdu(uint16_t rnti, srslte::unique_byte_buffer_t pdu) override {}
  bool user_exists(uint16_t rnti) override { return true; }
  bool user_release(uint16_t rnti, asn1::s1ap::cause_radio_network_e cause_radio) override { return true; }
  void ue_ctxt_setup_complete(uint16_t rnti, const asn1::s1ap::init_context_setup_resp_s& res) override {}
  void ue_erab_setup_complete(uint16_t rnti, const asn1::s1ap::erab_setup_resp_s& res) override {}
  bool is_mme_connected() override { return true; }
  bool send_ho_required(uint16_t                     rnti,
                        uint32_t                     target_eci,
                        srslte::plmn_id_t            target_plmn,
                        srslte::unique_byte_buffer_t rrc_container) override
  {
    return true;
  }
  bool send_enb_status_transfer_proc(uint16_t rnti, std::vector<bearer_status_info>& bearer_status_list) override
  {
    return true;
  }
  void send_ho_notify(uint16_t rnti, uint64_t target_eci) override {}
};

class phy_dummy : public phy_interface_rrc_lte
{
public:
  void configure_mbsfn(asn1::rrc::sib_type2_s*      sib2,
                       asn1::rrc::sib_type13_r9_s*  sib13,
                       const asn1::rrc::mcch_msg_s& mcch) override
  {}
  void set_config(uint16_t rnti, const phy_rrc_cfg_list_t& dedicated_list) override {}
  void complete_config(uint16_t rnti) override{};
};

class gtpu_dummy : public gtpu_interface_rrc
{
public:
  uint32_t add_bearer(uint16_t rnti, uint32_t lcid, uint32_t addr, uint32_t teid_out) override { return 0; }
  void     rem_bearer(uint16_t rnti, uint32_t lcid) override {}
  void     mod_bearer_rnti(uint16_t old_rnti, uint16_t new_rnti) override {}
  void     rem_user(uint16_t rnti) override {}
};

} // namespace srsenb

#endif // SRSENB_DUMMY_CLASSES_H