#ifndef CHANNEL_HEADER_HH
#define CHANNEL_HEADER_HH

#include <cstdint>
#include <cstdlib>

class Channel {
   uint32_t id;
   uint32_t size;
   uint32_t version;
   int32_t integral[3];
   uint32_t crossing;
   uint32_t block_count;
   uint32_t spill;
   char * block_data;
   bool valid;
   public:
   Channel(char const * ptr, size_t len);
   void Print();

};
Channel::Channel(char const * ptr, size_t len) {
   valid = true;
   uint32_t * wordData = (uint32_t *)ptr;
   size = ((wordData[0] & 0xFFFFFF00) >> 8) * sizeof(uint32_t);
   if (size != len) valid = false;

   version = wordData[0] && 0xFF;
   if (version != 0x1) valid = false;

   for (int i = 0; i < 3; i++) 
      integral[i] = (wordData[i + 1] & 0xFFFFFF00)>>8;

   crossing = wordData[4] & 0x00FFFFFF;
   block_count = (wordData[5] &0xFF000000) >> 24;
   id = (wordData[5] & 0x00FF0000) >> 16;
   spill = (wordData[5] & 0x0000FFFF);
   if ((id > 8) || (id < 1)) {
      valid = false;
   }

}

#include <iostream>
void Channel::Print(){
   if (valid) {
      printf("channel %u, spill %u, size %u, blocks %u, crossing %u, integrals %d, %d, %d\n",
            id, spill, size, block_count, crossing, integral[0], integral[1], integral[2]);
   }
   else {
      printf("Invalid channel\n");
   }
}
#endif /* end of include guard */