/*
***************************************************************************
*
* Author: Teunis van Beelen
*
* Copyright (C) 2013 - 2024 Teunis van Beelen
*
* Email: teuniz@protonmail.com
*
***************************************************************************
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3 of the License.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program.  If not, see <http://www.gnu.org/licenses/>.
*
***************************************************************************
*/


#ifndef UI_SCPECG2EDFFORM_H
#define UI_SCPECG2EDFFORM_H


#include "qt_headers.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "global.h"
#include "mainwindow.h"
#include "utils.h"
#include "edflib.h"
#include "utc_date_time.h"

#define SCP_ECG_MAX_CHNS   (256)


class UI_Mainwindow;

class UI_SCPECG2EDFwindow : public QObject
{
  Q_OBJECT

public:
  UI_SCPECG2EDFwindow(QWidget *parent, char *recent_dir=NULL, char *save_dir=NULL);

  UI_Mainwindow *mainwindow;

private:


QPushButton  *pushButton1,
             *pushButton2;

QTextEdit    *textEdit1;

QDialog      *myobjectDialog;

char  *recent_opendir,
      *recent_savedir;

unsigned short crc_ccitt_table[256];

struct scp_ecg_prop_struct
{
  int avm;
  int avm_prot;
  double avm_ratio;
  int sf;
  int sf_prot;
  int sf_ratio;
  int chns;
  int encoding;
  int encoding_prot;
  int bimodal;
  int ref_beat_subtract;
  int huffman_enc;
} scp_ecg;

struct section_prop_struct
{
  int present;
  long long file_offset;
  unsigned short crc;
  int section_id;
  int section_length;
  int section_version;
  int section_protocol_version;
  char reserved[6];
} sp[12];

struct lead_prop_struct
{
  int start;
  int end;
  int samples;
  int bimod_samples;
  int bytes;
  unsigned char label;
  int huffman_decoder_produced_samples;
} lp[SCP_ECG_MAX_CHNS];

struct huffmantable_struct
{
  int h_tables_cnt;
  int code_structs_cnt;
  int prefix_bits;
  int total_bits;
  int table_mode_switch;
  int base_value;
  int base_code;
} ht;

struct patient_data_struct
{
  char pat_id[21];
  int startdate_year;
  int startdate_month;
  int startdate_day;
  int starttime_hour;
  int starttime_minute;
  int starttime_second;
  char last_name[21];
  char first_name[21];
  int birthdate_year;
  int birthdate_month;
  int birthdate_day;
  int sex;
  char device_model[6];
  char device_serial[49];
  char device_ident[49];
  char manufacturer[49];
  unsigned char lang_code;
} pat_dat;

struct qrs_loc_data_struct
{
  int ref_beat_length;
  int fiducial_tp;
  int n_qrs;
  int qrs_subtr_type[1024];
  int qrs_subtr_start[1024];
  int qrs_subtr_fiducial[1024];
  int qrs_subtr_end[1024];
  int qrs_prot_start[1024];
  int qrs_prot_end[1024];
  int ref_beat_bytes[SCP_ECG_MAX_CHNS];
  int huffman_decoder_produced_samples[SCP_ECG_MAX_CHNS];
  int *ref_beat[SCP_ECG_MAX_CHNS];
} qrs_data;

struct global_measure_data_struct
{
  int n_ref_beat_type;
  int n_qrs;
  int n_pace_spike;
  int pace_spike_offset[1024];
  int pace_spike_amp[1024];
} glob_msr_data;


int read_data_section_zero(FILE *, char *, long long);

int read_section_header(int, FILE *, long long, char *);

int check_crc(FILE *, long long, long long, unsigned short, char *);

void crc_ccitt_init(void);

unsigned short crc_ccitt(const unsigned char *, int, unsigned short);

inline unsigned char reverse_bitorder(unsigned char);

void lead_label_lookup(unsigned char, char *, int);

int get_patient_data(FILE *);

int is_in_protected_area(int);

int is_nearby_subtracted_area(int);

int default_huffman_decoding(char *, int *, int, int);

void reconstitute_data_first_diff(int *, int);

void reconstitute_data_second_diff(int *, int);

int reconstitute_decimated_samples(int *, int *, int);

void smooth_subtract_area_borders(int *, int);

private slots:

void SelectFileButton();

};




#endif


