/*
  Copyright (C) 2013 by Andreas Lauser

  This file is part of the Open Porous Media project (OPM).

  OPM is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  OPM is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with OPM.  If not, see <http://www.gnu.org/licenses/>.
 */
#include <utility>
#include <iostream>

#include <opm/parser/eclipse/EclipseState/Tables/SimpleTable.hpp>
#include <opm/parser/eclipse/EclipseState/Tables/TableSchema.hpp>
#include <opm/parser/eclipse/Deck/DeckItem.hpp>

namespace Opm {

    SimpleTable::SimpleTable()
    {

    }


    SimpleTable::SimpleTable(std::shared_ptr<TableSchema> schema , const DeckItem& deckItem)
     : m_schema( schema )
    {
        init(deckItem);
    }


    SimpleTable::SimpleTable(std::shared_ptr<TableSchema> schema )
        : m_schema( schema )
    {
        addColumns();
    }


    void SimpleTable::addRow( const std::vector<double>& row) {
        if (row.size() == numColumns()) {
            for (size_t colIndex  = 0; colIndex < numColumns(); colIndex++) {
                auto& col = getColumn( colIndex );
                col.addValue( row[colIndex] );
            }
        } else
            throw std::invalid_argument("Size mismatch");
    }


    void SimpleTable::addColumns() {
        for (size_t colIdx = 0; colIdx < m_schema->size(); ++colIdx) {
            const auto& schemaColumn = m_schema->getColumn( colIdx );
            TableColumn column(schemaColumn); // Some move trickery here ...
            m_columns.insert( schemaColumn.name() , column );
        }
    }


    double SimpleTable::get(const std::string& column  , size_t row) const {
        const auto& col = getColumn( column );
        return col[row];
    }


    double SimpleTable::get(size_t column  , size_t row) const {
        const auto& col = getColumn( column );
        return col[row];
    }



// create table from single record
void SimpleTable::init( const DeckItem& deckItem)
{
    addColumns();
    if ( (deckItem.size() % numColumns()) != 0)
        throw std::runtime_error("Number of columns in the data file is"
                                 "inconsistent with the ones specified");
    {
        size_t rows = deckItem.size() / numColumns();
        for (size_t colIdx = 0; colIdx < numColumns(); ++colIdx) {
            auto& column = getColumn( colIdx );
            for (size_t rowIdx = 0; rowIdx < rows; rowIdx++) {
                size_t deckItemIdx = rowIdx*numColumns() + colIdx;
                if (deckItem.defaultApplied(deckItemIdx))
                    column.addDefault( );
                else
                    column.addValue( deckItem.getSIDouble(deckItemIdx) );
            }
            if (colIdx > 0)
                column.applyDefaults(getColumn( 0 ));
        }
    }
}

size_t SimpleTable::numColumns() const {
    return m_schema->size();
}

size_t SimpleTable::numRows() const {
    const auto column0 = getColumn(0);
    return column0.size();
}



    const TableColumn& SimpleTable::getColumn( const std::string& name) const {
        return std::forward<const TableColumn &>(m_columns.get( name ));
    }

    const TableColumn& SimpleTable::getColumn( size_t columnIndex )  const {
        return std::forward<const TableColumn &>(m_columns.get( columnIndex ));
    }


    TableColumn& SimpleTable::getColumn( const std::string& name) {
        return std::forward<TableColumn &>(m_columns.get( name ));
    }

    TableColumn& SimpleTable::getColumn( size_t columnIndex ) {
        return std::forward<TableColumn &>(m_columns.get( columnIndex ));
    }


    bool SimpleTable::hasColumn(const std::string& name) const {
        return m_schema->hasColumn( name );
    }

    double SimpleTable::evaluate(const std::string& columnName, double xPos) const
    {
        const auto& argColumn = getColumn( 0 );
        const auto& valueColumn = getColumn( columnName );

        const auto index = argColumn.lookup( xPos );
        return valueColumn.eval( index );
    }

}