/******************************************************************************
 *
 * Project:  NTF Translator
 * Purpose:  NTFCodeList class implementation.
 * Author:   Frank Warmerdam, warmerdam@pobox.com
 *
 ******************************************************************************
 * Copyright (c) 2001, Frank Warmerdam
 *
 * SPDX-License-Identifier: MIT
 ****************************************************************************/

#include <algorithm>
#include <stdarg.h>
#include "ntf.h"
#include "cpl_conv.h"
#include "cpl_string.h"

/************************************************************************/
/*                             NTFCodeList                              */
/************************************************************************/

NTFCodeList::NTFCodeList(NTFRecord *poRecord)
    : nNumCode(std::max(0, atoi(poRecord->GetField(20, 22)))),
      papszCodeVal(static_cast<char **>(CPLMalloc(sizeof(char *) * nNumCode))),
      papszCodeDes(static_cast<char **>(CPLMalloc(sizeof(char *) * nNumCode)))
{

    CPLAssert(EQUAL(poRecord->GetField(1, 2), "42"));

    snprintf(szValType, sizeof(szValType), "%s", poRecord->GetField(13, 14));
    snprintf(szFInter, sizeof(szFInter), "%s", poRecord->GetField(15, 19));

    const int nRecordLen = poRecord->GetLength();
    const char *pszText = poRecord->GetData() + 22;
    int iThisField = 0;
    for (; nRecordLen > 22 && *pszText != '\0' && iThisField < nNumCode;
         iThisField++)
    {
        char szVal[128] = {};
        int iLen = 0;
        while (iLen < static_cast<int>(sizeof(szVal)) - 1 && *pszText != '\\' &&
               *pszText != '\0')
        {
            szVal[iLen++] = *(pszText++);
        }
        szVal[iLen] = '\0';

        if (*pszText == '\\')
            pszText++;

        iLen = 0;
        char szDes[128] = {};
        while (iLen < static_cast<int>(sizeof(szDes)) - 1 && *pszText != '\\' &&
               *pszText != '\0')
        {
            szDes[iLen++] = *(pszText++);
        }
        szDes[iLen] = '\0';

        if (*pszText == '\\')
            pszText++;

        papszCodeVal[iThisField] = CPLStrdup(szVal);
        papszCodeDes[iThisField] = CPLStrdup(szDes);
    }

    if (iThisField < nNumCode)
    {
        nNumCode = iThisField;
        CPLDebug("NTF", "Didn't get all the expected fields from a CODELIST.");
    }
}

/************************************************************************/
/*                            ~NTFCodeList()                            */
/************************************************************************/

NTFCodeList::~NTFCodeList()

{
    for (int i = 0; i < nNumCode; i++)
    {
        CPLFree(papszCodeVal[i]);
        CPLFree(papszCodeDes[i]);
    }

    CPLFree(papszCodeVal);
    CPLFree(papszCodeDes);
}

/************************************************************************/
/*                               Lookup()                               */
/************************************************************************/

const char *NTFCodeList::Lookup(const char *pszCode)

{
    for (int i = 0; i < nNumCode; i++)
    {
        if (EQUAL(pszCode, papszCodeVal[i]))
            return papszCodeDes[i];
    }

    return nullptr;
}