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// Author: David Alexander

#pragma once

#include <vector>
#include <string>
#include <utility>
#include <tuple>

#include "Types.hpp"
#include "Mutation.hpp"

namespace ConsensusCore
{
    /// \brief An object representing a Poa (partial-order alignment) graph
    class PoaGraph
    {
        class Impl;
        Impl* impl;

    public:  // Flags enums for specifying GraphViz output features
        enum {
            COLOR_NODES    = 0x1,
            VERBOSE_NODES = 0x2
        };

    public:
        void AddSequence(const std::string& sequence, const PoaConfig& config);

        // TODO(dalexander): move this method to PoaConsensus so we don't have to use a tuple
        // interface here (which was done to avoid a circular dep on PoaConsensus).
#ifndef SWIG
        std::tuple<std::string, float, std::vector< std::pair<Mutation*, float> >* >
        FindConsensus(const PoaConfig& config) const;
#endif  // !SWIG

        int NumSequences() const;
        std::string ToGraphViz(int flags = 0) const;
        void WriteGraphVizFile(std::string filename, int flags = 0) const;
        PoaGraph();
        ~PoaGraph();
    };
}