/*****************************************************************************/
// Copyright (c) Illumina 2008
// Author: Richard Shaw
//
// This software is covered by the "Illumina Genome Analyzer Software
// License Agreement" and the "Illumina Source Code License Agreement",
// and certain third party copyright/licenses, and any user of this
// source file is bound by the terms therein (see accompanying files
// Illumina_Genome_Analyzer_Software_License_Agreement.pdf and
// Illumina_Source_Code_License_Agreement.pdf and third party
// copyright/license notices).
/*****************************************************************************/

#include <algorithm>
#include <iterator>

#include "statistics/Pattern_Info.h"

/*****************************************************************************/

Pattern_Info::Pattern_Info()
    : my_num_patterns(0)
{

}

/*****************************************************************************/

Pattern_Info::~Pattern_Info()
{

}

/*****************************************************************************/

Pattern_Info& Pattern_Info::add_pattern(const std::string& pattern_str)
{
    if (my_num_patterns == MAX_NUM_PATTERNS_TO_LIST_PER_RANK) {
        my_str_junk_map.clear();
    }

    ++my_num_patterns;

    if (my_num_patterns <= MAX_NUM_PATTERNS_TO_LIST_PER_RANK) {
        my_str_junk_map[pattern_str] = 'x';
    }

    return *this;
}

/*****************************************************************************/

class Str_Separation {

public:
    Str_Separation(const std::string& separ_str, bool separate_first=false)
        : my_separ_str(separ_str),
          my_curr_separ_str(separate_first ? separ_str : std::string()) { }
    const std::string operator()(Pattern_Info::Str_Junk_Map_Ele str_junk_ele) {
        const std::string ret_str(my_curr_separ_str + str_junk_ele.first);
        my_curr_separ_str = my_separ_str;
        return ret_str;
    }

private:
    std::string my_separ_str;
    std::string my_curr_separ_str;
};

/*****************************************************************************/

std::ostream& operator<<(std::ostream& ostrm,
                         const Pattern_Info& pattern_info)
{
    if (pattern_info.my_num_patterns
        > Pattern_Info::MAX_NUM_PATTERNS_TO_LIST_PER_RANK) {
        ostrm << pattern_info.my_num_patterns << " sequences";
    } else {
        Str_Separation str_separation(" ");
        std::transform(pattern_info.my_str_junk_map.begin(),
                       pattern_info.my_str_junk_map.end(),
                       std::ostream_iterator<std::string>(ostrm),
                       str_separation);

        // For exact match to legacy behaviour.
        ostrm << ' ';
    }

    return ostrm;
}

/*****************************************************************************/