#include <iostream>
#include <cassert>

#include "pb_common.h"
#include "pb.h"
#include "pb_encode.h"
#include "pb_decode.h"

#include "gateway/message.pb.h"

/*
 * Try to get repeating element to work with nanopb
 * for coordinates
 */
using namespace std;
void print_buffer(uint8_t *buffer, int size) {
  for(int i=0;i<size;i++) {
    printf("%02x ", buffer[i]);
  }
  printf("\n");
}
int main() {
  uint8_t buffer[1000] = {0};
  pb_ostream_t stream;
  pb_istream_t stream0;
  int err;

  // encode a coordinate
  Fenceless_Coordinate coord = Fenceless_Coordinate_init_zero;
  coord.x = 789;
  coord.y = 123;
  stream = pb_ostream_from_buffer(buffer, sizeof(buffer));
  
  err = pb_encode(&stream, Fenceless_Coordinate_fields, &coord);
  assert(err);
  print_buffer(buffer, stream.bytes_written);

  // decode a coordinate from buffer
  Fenceless_Coordinate coord0 = Fenceless_Coordinate_init_zero;
  stream0 = pb_istream_from_buffer(buffer, stream.bytes_written);
  err = pb_decode(&stream0, Fenceless_Coordinate_fields, &coord0);
  assert(err);

  // check result
  assert(coord0.x == coord.x);
  assert(coord0.y == coord.y);

  // encode a coller response
  Fenceless_CollarResponse collar = Fenceless_CollarResponse_init_zero;
  collar.loc.x = 200;
  collar.loc.y = 100;
  stream = pb_ostream_from_buffer(buffer, sizeof(buffer));

  err = pb_encode(&stream, Fenceless_CollarResponse_fields, &collar);
  assert(err);
  print_buffer(buffer, stream.bytes_written);

  Fenceless_CollarResponse collar0 = Fenceless_CollarResponse_init_zero;
  stream0 = pb_istream_from_buffer(buffer, stream.bytes_written);
  err = pb_decode(&stream0, Fenceless_CollarResponse_fields, &collar0);
  assert(err);

  // check result 
  assert(collar0.loc.x == collar.loc.x);
  assert(collar0.loc.y == collar.loc.y);

  // encode 10 coordinates
  Fenceless_Coordinates coords;
  coords.coord0.x = 1; coords.coord0.y = 2;
  coords.coord1.x = 1; coords.coord1.y = 2;
  coords.coord2.x = 1; coords.coord2.y = 2;
  coords.coord3.x = 1; coords.coord3.y = 2;
  coords.coord4.x = 1; coords.coord4.y = 2;
  coords.coord5.x = 1; coords.coord5.y = 2;
  coords.coord6.x = 1; coords.coord6.y = 2;
  coords.coord7.x = 1; coords.coord7.y = 2;
  coords.coord8.x = 1; coords.coord8.y = 2;
  coords.coord9.x = 1; coords.coord9.y = 2;
  
  coords.isr = 10;

  stream  = pb_ostream_from_buffer(buffer, sizeof(buffer));
  err = pb_encode(&stream, Fenceless_Coordinates_fields, &coords);
  assert(err);
  
  print_buffer(buffer, stream.bytes_written);

  // encode multiple coordinates 
  //Fenceless_Coordinates coords = Fenceless_Coordinates_init_zero;
  //coords.loc.funcs.encode = [](pb_ostream_t *stream, const pb_field_t *field, void * const * arg){
  //  cout << "encode called" << endl;
  //  int err;
  //  err = pb_encode_tag_for_field(stream , field);
  //  assert(err);

  //  Fenceless_Coordinate coord = Fenceless_Coordinate_init_zero;
  //  coord.x = 123;
  //  coord.y = 456;
  //  err = pb_encode_submessage(stream, Fenceless_Coordinate_fields, &coord);
  //  assert(err);


  //  err = pb_encode_tag_for_field(stream , field);
  //  assert(err);

  //  coord = Fenceless_Coordinate_init_zero;
  //  coord.x = 789;
  //  coord.y = 987;
  //  err = pb_encode_submessage(stream, Fenceless_Coordinate_fields, &coord);
  //  assert(err);

  //  return true;
  //};
  //memset(buffer, 0, sizeof(buffer)-1);
  //stream = pb_ostream_from_buffer(buffer, sizeof(buffer));

  //err = pb_encode(&stream, Fenceless_Coordinates_fields, &coords);
  //assert(err);

  //print_buffer(buffer, stream.bytes_written);

  //Fenceless_Coordinates coords0 = Fenceless_Coordinates_init_zero;
  //coords0.loc.funcs.decode = [](pb_istream_t *stream, const pb_field_iter_t  *field, void ** arg){
  //  cout << "decode called" << endl;
  //  printf("Array size: %d\n", field->array_size);
  //  bool eof;
  //  uint32_t tag;
  //  pb_wire_type_t t = PB_WT_STRING;
  //  pb_decode_tag(stream, &t, &tag, &eof); 
  //  Fenceless_Coordinate coord;
  //  int err = pb_decode(stream, Fenceless_Coordinate_fields, &coord);
  //  assert(err);
  //  printf("%d %d", coord.x,coord.y);

  //  return false;
  //};
  //stream0 = pb_istream_from_buffer(buffer, stream.bytes_written);
  //err = pb_decode(&stream0, Fenceless_Coordinates_fields, &coords0);
  //assert(err);
  return 0;
}