synced_variant_iterator.h

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#ifndef gamgee__synced_variant_iterator__guard
#define gamgee__synced_variant_iterator__guard

#include "htslib/vcf.h"
#include "htslib/synced_bcf_reader.h"

#include "variant.h"

#include <memory>

namespace gamgee {

class SyncedVariantIterator {
 public:

  SyncedVariantIterator();

  SyncedVariantIterator(const std::shared_ptr<bcf_srs_t>& synced_readers);

  SyncedVariantIterator(SyncedVariantIterator&& other) = default;
  SyncedVariantIterator& operator=(SyncedVariantIterator&& other) = default;

  SyncedVariantIterator(const SyncedVariantIterator&) = delete;
  SyncedVariantIterator& operator=(const SyncedVariantIterator&) = delete;

  bool operator!=(const SyncedVariantIterator& rhs);

  std::vector<Variant>& operator*();

  std::vector<Variant>& operator++();

 private:
  std::shared_ptr<bcf_srs_t> m_synced_readers;                  
  std::vector<Variant> m_variant_vector;                        
  std::vector<std::shared_ptr<bcf_hdr_t>> m_headers_vector;     

  void init_headers_vector();                                   
  void fetch_next_record();                                     
};

}  // end namespace gamgee

#endif /* gamgee__synced_variant_iterator__guard */