/////////////////////////////////////////////////////////////////////////////////
//
//  Copyright (C) 2017     Statoil ASA
//
//  ResInsight 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.
//
//  ResInsight 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 at <http://www.gnu.org/licenses/gpl.html>
//  for more details.
//
/////////////////////////////////////////////////////////////////////////////////

#include "RiaProjectFileVersionTools.h"

#include <QStringList>

//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
bool RiaProjectFileVersionTools::isCandidateVersionNewerThanOther(const QString& candidateProjectFileVersion,
                                                               const QString& projectFileVersion)
{
    int candidateMajorVersion  = 0;
    int candidateMinorVersion  = 0;
    int candidatePatchNumber   = 0;
    int candidateDevelopmentId = 0;

    RiaProjectFileVersionTools::decodeVersionString(candidateProjectFileVersion, &candidateMajorVersion, &candidateMinorVersion,
                                                    &candidatePatchNumber, &candidateDevelopmentId);

    int majorVersion  = 0;
    int minorVersion  = 0;
    int patchNumber   = 0;
    int developmentId = 0;

    RiaProjectFileVersionTools::decodeVersionString(projectFileVersion, &majorVersion, &minorVersion, &patchNumber,
                                                    &developmentId);

    return RiaProjectFileVersionTools::isCandidateNewerThanOther(candidateMajorVersion, candidateMinorVersion,
                                                                 candidatePatchNumber, candidateDevelopmentId, majorVersion,
                                                                 minorVersion, patchNumber, developmentId);
}

//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void RiaProjectFileVersionTools::decodeVersionString(const QString& projectFileVersion, int* majorVersion, int* minorVersion,
                                                     int* patch, int* developmentId)
{
    if (projectFileVersion.isEmpty()) return;

    QStringList subStrings = projectFileVersion.split(".");

    if (subStrings.size() > 0)
    {
        *majorVersion = subStrings[0].toInt();
    }

    if (subStrings.size() > 1)
    {
        *minorVersion = subStrings[1].toInt();
    }

    if (subStrings.size() > 2)
    {
        QString candidate           = subStrings[2];
        QString candidateDigitsOnly = RiaProjectFileVersionTools::stringOfDigits(candidate);

        *patch = candidateDigitsOnly.toInt();
    }

    if (subStrings.size() > 3)
    {
        QString candidate           = subStrings.back();
        QString candidateDigitsOnly = RiaProjectFileVersionTools::stringOfDigits(candidate);

        *developmentId = candidateDigitsOnly.toInt();
    }
}

//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
bool RiaProjectFileVersionTools::isCandidateNewerThanOther(int candidateMajorVersion, int candidateMinorVersion,
                                                           int candidatePatchNumber, int candidateDevelopmentId,
                                                           int otherMajorVersion, int otherMinorVersion, int otherPatchNumber,
                                                           int otherDevelopmentId)
{
    if (candidateMajorVersion != otherMajorVersion)
    {
        return (candidateMajorVersion > otherMajorVersion);
    }

    if (candidateMinorVersion != otherMinorVersion)
    {
        return (candidateMinorVersion > otherMinorVersion);
    }

    if (candidatePatchNumber != otherPatchNumber)
    {
        return (candidatePatchNumber > otherPatchNumber);
    }

    if (candidateDevelopmentId != otherDevelopmentId)
    {
        return (candidateDevelopmentId > otherDevelopmentId);
    }

    return false;
}

//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
QString RiaProjectFileVersionTools::stringOfDigits(const QString& string)
{
    QString digitsOnly;

    for (const auto& c : string)
    {
        if (c.isDigit())
        {
            digitsOnly += c;
        }
        else
        {
            if (!digitsOnly.isEmpty())
            {
                return digitsOnly;
            }
        }
    }

    return digitsOnly;
}