#include "box.cpp"
#include <string>
#include <vector>

struct stsc_record {
  uint32_t FirstChunk;
  uint32_t SamplesPerChunk;
  uint32_t SampleDescIndex;
};//stsc_record

class Box_stsc {
  public:
    Box_stsc( );
    ~Box_stsc();
    Box * GetBox();
    void SetReserved( );
    void AddEntry( uint32_t FirstChunk = 0, uint32_t SamplesPerChunk = 0, uint32_t SampleDescIndex = 0, uint32_t Offset = 0 );
    void WriteContent( );
  private:
    Box * Container;
    
    std::vector<stsc_record> Entries;
};//Box_ftyp Class

Box_stsc::Box_stsc( ) {
  Container = new Box( 0x73747363 );
  SetReserved();
}

Box_stsc::~Box_stsc() {
  delete Container;
}

Box * Box_stsc::GetBox() {
  return Container;
}

void Box_stsc::SetReserved( ) {
  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(0));
}

void Box_stsc::AddEntry( uint32_t FirstChunk, uint32_t SamplesPerChunk, uint32_t SampleDescIndex, uint32_t Offset ) {
  if(Offset >= Entries.size()) {
    Entries.resize(Offset+1);
  }
  Entries[Offset].FirstChunk = FirstChunk;
  Entries[Offset].SamplesPerChunk = SamplesPerChunk;
  Entries[Offset].SampleDescIndex = SampleDescIndex;
}


void Box_stsc::WriteContent( ) {
  Container->ResetPayload();
  SetReserved( );
  if(!Entries.empty()) {
    for(int32_t i = Entries.size() -1; i >= 0; i--) {
      Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(Entries[i].SampleDescIndex),(i*12)+16);
      Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(Entries[i].SamplesPerChunk),(i*12)+12);
      Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(Entries[i].FirstChunk),(i*12)+8);
    }
  }
  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(Entries.size()),4);
}