/**
 * range.h
 */

#ifndef RANGE_H_
#define RANGE_H_

#include <stdint.h>

#include "assert_helpers.h"
#include "btypes.h"
#include "ds.h"

/**
 * A range along with the alignment it represents.
 */
struct Range {
	Range() :
		top(OFF_MASK), bot(0), cost(0), stratum(0), numMms(0),
		fw(true), mate1(true), ebwt(NULL)
	{
		mms.clear();
		refcs.clear();
	}

	bool valid() const {
		return top < OFF_MASK;
	}

	void invalidate() {
		top = OFF_MASK;
	}

	TIndexOffU top;     // top of range
	TIndexOffU bot;     // bottom of range
	uint16_t cost;    // cost
	uint32_t stratum; // stratum
	uint32_t numMms;  // # mismatches
	bool fw;          // the forward orientation of read aligned?
	bool mate1;       // read aligned is #1 mate/single?
	EList<TIndexOffU> mms;   // list of positions with mismatches
	EList<uint8_t>  refcs; // reference characters at mismatch positions
	// const Ebwt<seqan::String<seqan::Dna> > *ebwt;
        const Ebwt *ebwt;

	bool repOk() const {
		assert_eq(refcs.size(), mms.size());
		assert_eq(numMms, mms.size());
		assert_leq(stratum, numMms);
		return true;
	}
};

#endif /* RANGE_H_ */