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#include "manipulationhandler.h"

#include <algorithm>
#include <iostream>
#include <numeric>

#include "mp.h"
#include "numericrange.h"

ManipulationHandler::ManipulationHandler(const arma::mat &X,
                                         const arma::uvec &cpIndices)
    : m_X(X)
    , m_Y(X.n_rows, 2)
    , m_cpIndices(cpIndices)
    , m_rpIndices(X.n_rows - cpIndices.n_elem)
    , m_technique(TECHNIQUE_LAMP)
{
    NumericRange<unsigned long long> range(0, m_X.n_rows);
    std::set_symmetric_difference(range.cbegin(), range.cend(),
            m_cpIndices.cbegin(), m_cpIndices.cend(), m_rpIndices.begin());
}

void ManipulationHandler::setTechnique(ManipulationHandler::Technique technique)
{
    if (m_technique == technique)
        return;

    m_technique = technique;
}

void ManipulationHandler::setCP(const arma::mat &Ys)
{
    switch (m_technique) {
    case TECHNIQUE_PLMP:
        mp::plmp(m_X, m_cpIndices, Ys, m_Y);
        break;
    case TECHNIQUE_LSP:
        // TODO
        // mp::lsp(m_X, m_cpIndices, Ys, m_Y);
        break;
    case TECHNIQUE_LAMP:
        mp::lamp(m_X, m_cpIndices, Ys, m_Y);
        break;
    case TECHNIQUE_PEKALSKA:
        // TODO
        // mp::pekalska(m_X, m_cpIndices, Ys, m_Y);
        break;
    }

    emit cpChanged(m_Y.rows(m_cpIndices));
    emit rpChanged(m_Y.rows(m_rpIndices));
    emit mapChanged(m_Y);
}