/*!
   \file lib/db/dbmi_base/sqltype.c

   \brief DBMI Library (base) - SQL data type

   (C) 1999-2009, 2011 by the GRASS Development Team

   This program is free software under the GNU General Public License
   (>=v2). Read the file COPYING that comes with GRASS for details.

   \author Joel Jones (CERL/UIUC), Radim Blazek
   \author Doxygenized by Martin Landa <landa.martin gmail.com> (2011)
 */

#include <string.h>
#include <grass/dbmi.h>

/*!
   \brief Get SQL data type description

   \param sqltype SQL data type

   \return string buffer with description
 */
const char *db_sqltype_name(int sqltype)
{
    static char buf[256];
    int from, to;

    switch (sqltype) {
    case DB_SQL_TYPE_CHARACTER:
        return "CHARACTER";
    case DB_SQL_TYPE_NUMERIC:
        return "NUMERIC";
    case DB_SQL_TYPE_DECIMAL:
        return "DECIMAL";
    case DB_SQL_TYPE_SMALLINT:
        return "SMALLINT";
    case DB_SQL_TYPE_INTEGER:
        return "INTEGER";
    case DB_SQL_TYPE_REAL:
        return "REAL";
    case DB_SQL_TYPE_DOUBLE_PRECISION:
        return "DOUBLE PRECISION";
    case DB_SQL_TYPE_DATE:
        return "DATE";
    case DB_SQL_TYPE_TIME:
        return "TIME";
    case DB_SQL_TYPE_SERIAL:
        return "SERIAL";
    case DB_SQL_TYPE_TEXT:
        return "TEXT";
    }
    switch (sqltype & ~DB_DATETIME_MASK) {
    case DB_SQL_TYPE_TIMESTAMP:
        strcpy(buf, "TIMESTAMP ");
        break;
    case DB_SQL_TYPE_INTERVAL:
        strcpy(buf, "INTERVAL ");
        break;
    default:
        return "UNKNOWN";
    }

    db_interval_range(sqltype, &from, &to);

    switch (from) {
    case DB_YEAR:
        strcat(buf, "YEAR");
        break;
    case DB_MONTH:
        strcat(buf, "MONTH");
        break;
    case DB_DAY:
        strcat(buf, "DAY");
        break;
    case DB_HOUR:
        strcat(buf, "HOUR");
        break;
    case DB_MINUTE:
        strcat(buf, "MINUTE");
        break;
    case DB_SECOND:
        strcat(buf, "SECOND");
        break;
    case DB_FRACTION:
        strcat(buf, "FRACTION");
        break;
    }

    if (from)
        strcat(buf, " to");
    if (to)
        strcat(buf, " ");

    switch (to) {
    case DB_YEAR:
        strcat(buf, "YEAR");
        break;
    case DB_MONTH:
        strcat(buf, "MONTH");
        break;
    case DB_DAY:
        strcat(buf, "DAY");
        break;
    case DB_HOUR:
        strcat(buf, "HOUR");
        break;
    case DB_MINUTE:
        strcat(buf, "MINUTE");
        break;
    case DB_SECOND:
        strcat(buf, "SECOND");
        break;
    case DB_FRACTION:
        strcat(buf, "FRACTION");
        break;
    }

    return buf;
}
