/*
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 * and the project initiators Erik Lindahl, Berk Hess and David van der Spoel.
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/*! \internal \file
 * \brief
 * Implements routine to check the content of conf files.
 *
 * \author David van der Spoel <david.vanderspoel@icm.uu.se>
 * \ingroup module_testutils
 */
#include "gmxpre.h"

#include "testutils/conftest.h"

#include <cstdio>
#include <cstdlib>

#include "gromacs/utility/gmxassert.h"
#include "gromacs/utility/stringutil.h"
#include "gromacs/utility/textreader.h"
#include "gromacs/utility/textstream.h"

#include "testutils/refdata.h"
#include "testutils/testasserts.h"
#include "testutils/textblockmatchers.h"

namespace gmx
{

namespace test
{

namespace
{

class ConfMatcher : public ITextBlockMatcher
{
public:
    explicit ConfMatcher(const ConfMatchSettings& settings) : settings_(settings) {}

    void checkStream(TextInputStream* stream, TestReferenceChecker* checker) override
    {
        checkConfFile(stream, checker, settings_);
    }

private:
    ConfMatchSettings settings_;
};

} // namespace

void checkConfFile(TextInputStream* input, TestReferenceChecker* checker, const ConfMatchSettings& settings)
{

    TestReferenceChecker groChecker(checker->checkCompound("GroFile", "Header"));
    // Check the first two lines of the output file
    std::string line;
    EXPECT_TRUE(input->readLine(&line));
    line = stripSuffixIfPresent(line, "\n");
    groChecker.checkString(line, "Title");
    EXPECT_TRUE(input->readLine(&line));
    line = stripSuffixIfPresent(line, "\n");
    groChecker.checkInteger(std::atoi(line.c_str()), "Number of atoms");
    // Check the full configuration only if required
    if (settings.matchFullConfiguration)
    {
        TextReader reader(input);
        checker->checkTextBlock(reader.readAll(), "Configuration");
    }
}

TextBlockMatcherPointer ConfMatch::createMatcher() const
{
    return TextBlockMatcherPointer(new ConfMatcher(settings_));
}

} // namespace test
} // namespace gmx
