/*
 * Copyright (C) 2021 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <stdlib.h>
#include <string.h>
#include <llcp_int.h>
#include <nfc_int.h>

extern tLLCP_CB llcp_cb;
extern tNFC_CB nfc_cb;
void rw_init(void);
void llcp_init(void);

int main() {
  GKI_init();
  rw_init();
  llcp_init();

  tNFC_CONN *p_data = (tNFC_CONN *)malloc(sizeof(tNFC_CONN));
  if (!p_data) {
    return EXIT_FAILURE;
  }
  p_data->data.p_data = (NFC_HDR *)malloc(16400 * sizeof(uint8_t));
  if (!(p_data->data.p_data)) {
    free(p_data);
    return EXIT_FAILURE;
  }
  nfc_cb.quick_timer_queue.p_first = (TIMER_LIST_ENT *)malloc(16);
  if (!(nfc_cb.quick_timer_queue.p_first)) {
    free(p_data);
    free(p_data->data.p_data);
    return EXIT_FAILURE;
  }

  uint8_t conn_id = 1;
  llcp_cb.lcb.agreed_major_version = LLCP_MIN_SNL_MAJOR_VERSION;
  llcp_cb.lcb.agreed_minor_version = LLCP_MIN_SNL_MINOR_VERSION;
  llcp_cb.lcb.link_state = LLCP_LINK_STATE_ACTIVATED;
  // Set llcp_cb.lcb.local_link_miu greater than p_msg->len
  llcp_cb.lcb.local_link_miu = 16400;
  llcp_cb.lcb.received_first_packet = true;
  llcp_cb.lcb.symm_state = LLCP_LINK_SYMM_REMOTE_XMIT_NEXT;
  tNFC_CONN_EVT event = NFC_DATA_CEVT;

  NFC_HDR *p_msg = (NFC_HDR *)(p_data->data.p_data);
  // p_msg->len is calculated based on the total PDUs in AGF PDU
  p_msg->len = 16395;
  p_msg->offset = 0;
  uint8_t *p = (uint8_t *)(p_msg + 1) + p_msg->offset;
  // First 2 bytes are set to values so that call flow goes from llcp_link_proc_rx_data
  // to llcp_link_proc_rx_pdu and then to llcp_link_proc_agf_pdu.
  *p = 0x00;
  *(p + 1) = 0x80;
  // The following are trying to emulate PDUs in AGF PDU
  *(p + 2) = 0x00;
  *(p + 3) = 0x02;
  *(p + 4) = 0x02;
  *(p + 5) = 0x40;
  *(p + 6) = 0x00;
  *(p + 7) = 0x01;
  *(p + 8) = 0x02;
  *(p + 9) = 0x40;
  *(p + 10) = 0x00;
  *(p + 11) = 0x02;
  *(p + 12) = 0x40;

  llcp_link_connection_cback(conn_id, event, p_data);

  free(p_data);
  free(nfc_cb.quick_timer_queue.p_first);
  return EXIT_SUCCESS;
}