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/*
 *  log.c
 * 
 *  Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
 * 
 *  This program 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 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 
 *  USA.
 */

#include "config.h"
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <ctype.h>
#include <libintl.h>

#include <alpm.h>
/* pacman */
#include "util.h"
#include "log.h"
#include "list.h"
#include "conf.h"

#define LOG_STR_LEN 256

extern config_t *config;

int neednl; /* for cleaner message output */

/* Callback to handle notifications from the library
 */
void cb_log(unsigned short level, char *msg)
{
  char str[9] = "";

  if(!strlen(msg)) {
    return;
  }

  switch(level) {
    case PM_LOG_DEBUG:
      sprintf(str, _("debug"));
    break;
    case PM_LOG_ERROR:
      sprintf(str, _("error"));
    break;
    case PM_LOG_WARNING:
      sprintf(str, _("warning"));
    break;
    case PM_LOG_FLOW1:
      sprintf(str, _("flow1"));
    break;
    case PM_LOG_FLOW2:
      sprintf(str, _("flow2"));
    break;
    case PM_LOG_FUNCTION:
      sprintf(str, _("function"));
    break;
    default:
      sprintf(str, _("???"));
    break;
  }

  MSG(NL, "%s%s\n", str, msg);
}

/* Wrapper to fprintf() that allows to choose if we want the output
 * to be appended on the current line, or written to a new one
 */
void pm_fprintf(FILE *file, unsigned short line, char *fmt, ...)
{
  va_list args;

  char str[LOG_STR_LEN];

  if(neednl == 1 && line == NL) {
    fprintf(stdout"\n");
    neednl = 0;
  }

  va_start(args, fmt);
  vsnprintf(str, LOG_STR_LEN, fmt, args);
  va_end(args);

  fprintf(file, str);
  fflush(file);

  neednl = (str[strlen(str)-1] == 10) ? 0 : 1;
}

/* Check verbosity option and, if set, print the
 * string to stdout
 */
void vprint(char *fmt, ...)
{
  va_list args;

  char str[LOG_STR_LEN];

  if(config->verbose > 0) {
    va_start(args, fmt);
    vsnprintf(str, LOG_STR_LEN, fmt, args);
    va_end(args);
    pm_fprintf(stdout, NL, str);
  }
}

/* presents a prompt and gets a Y/N answer
 */
int yesno(char *fmt, ...)
{
  char str[LOG_STR_LEN];
  char response[32];
  va_list args;

  if(config->noconfirm) {
    return(1);
  }

  va_start(args, fmt);
  vsnprintf(str, LOG_STR_LEN, fmt, args);
  va_end(args);
  MSG(NL, str);

  if(fgets(response, 32stdin)) {
    /* trim whitespace and newlines */
    char *pch = response;
    while(isspace(*pch)) {
      pch++;
    }
    if(pch != response) {
      memmove(response, pch, strlen(pch) + 1);
    }
    pch = response + strlen(response) - 1;
    while(isspace(*pch)) {
      pch--;
    }
    *++pch = 0;
    strtrim(response);

    if(!strcasecmp(response, _("Y")) || !strcasecmp(response, _("YES")) || !strlen(response)) {
      return(1);
    }
  }
  return(0);
}

/* vim: set ts=2 sw=2 noet: */