/*!
   \file db/driver/postgres/parse.c

   \brief DBMI - Low Level PostgreSQL database driver - parse connection string

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

   \author Radim Blazek
 */

#include <stdlib.h>
#include <string.h>
#include <grass/gis.h>
#include <grass/dbmi.h>
#include "globals.h"
#include "proto.h"
#include <grass/glocale.h>

/*
   \brief Parse connection string in form:
   1) 'database_name'
   2) 'host=xx,port=xx,dbname=xx'

   \returns DB_OK on success
   \return DB_FAILED on failure
 */
int parse_conn(const char *str, PGCONN *pgconn)
{
    int i;
    char **tokens, delm[2];

    /* reset */
    G_zero(pgconn, sizeof(PGCONN));

    G_debug(3, "parse_conn: '%s'", str);

    if (strchr(str, '=') == NULL) { /* db name only */
        pgconn->dbname = G_store(str);
    }
    else {
        delm[0] = ',';
        delm[1] = '\0';
        tokens = G_tokenize(str, delm);
        i = 0;
        while (tokens[i]) {
            G_chop(tokens[i]);
            G_debug(3, "token %d : %s", i, tokens[i]);
            if (strncmp(tokens[i], "host", 4) == 0)
                pgconn->host = G_store(tokens[i] + 5);
            else if (strncmp(tokens[i], "port", 4) == 0)
                pgconn->port = G_store(tokens[i] + 5);
            else if (strncmp(tokens[i], "options", 7) == 0)
                pgconn->options = G_store(tokens[i] + 8);
            else if (strncmp(tokens[i], "tty", 3) == 0)
                pgconn->tty = G_store(tokens[i] + 4);
            else if (strncmp(tokens[i], "dbname", 6) == 0)
                pgconn->dbname = G_store(tokens[i] + 7);
            else if (strncmp(tokens[i], "user", 4) == 0)
                G_warning(_("'user' in database definition is not supported, "
                            "use db.login"));
            /* pgconn->user = G_store ( tokens[i] + 5 ); */
            else if (strncmp(tokens[i], "password", 8) == 0)
                /* pgconn->password = G_store ( tokens[i] + 9 ); */
                G_warning(_("'password' in database definition is not "
                            "supported, use db.login"));
            else if (strncmp(tokens[i], "schema", 6) == 0)
                pgconn->schema = G_store(tokens[i] + 7);
            else {
                db_d_append_error("%s %s",
                                  _("Unknown option in database definition "
                                    "for PostgreSQL: "),
                                  tokens[i]);
                return DB_FAILED;
            }
            i++;
        }
        G_free_tokens(tokens);
    }

    return DB_OK;
}
