/***************************************************************************
 *
 * fedora-setup-keyboard.c: Apply /etc/sysconfig/keyboard to X
 * Copyright 2008 Red Hat, Inc.
 *
 * Shamelessly stolen from:
 *
 * hal_set_property.c : Set property for a device
 *
 * Copyright (C) 2003 David Zeuthen, <david@fubar.dk>
 *
 * Licensed under the Academic Free License version 2.1
 *
 * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 **************************************************************************/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>

#include <libhal.h>

static LibHalContext *hal_ctx;

static void
load_esk(void)
{
    FILE *f;
    char *name, *value, *line;

    f = fopen("/etc/sysconfig/keyboard", "r");
    if (!f)
	exit(1);

    while (fscanf(f, "%as\n", &line) == 1) {
	if (sscanf(line, "%as=\"%as\"\n", &name, &value) != 2) {
	    free(line);
	    continue;
	}
	setenv(name, value, 1);
	free(name);
	free(value);
	free(line);
    }

    fclose(f);
}

struct model {
    char *layout;
    char *model;
    char *variant;
    char *options;
} models[] = {
    { "be", "pc105", "", "" },
    { "br", "abnt2", "", "" },
    { "ca(fr)", "pc105", "", "" },
    { "ch", "pc105", "fr", "" },
    { "cz", "pc105", "qwerty", "" },
    { "de", "pc105", "", "" },
    { "dk", "pc105", "", "" },
    { "ee", "pc105", "", "" },
    { "es", "pc105", "", "" },
    { "fi", "pc105", "", "" },
    { "fr", "pc105", "", "" },
    { "gb", "pc105", "", "" },
    { "hr", "pc105", "", "" },
    { "hu", "pc105", "", "" },
    { "ie", "pc105", "", "" },
    { "is", "pc105", "", "" },
    { "it", "pc105", "", "" },
    { "jp", "jp106", "", "" },
    { "kr", "pc105", "", "" },
    { "latam", "pc105", "", "" },
    { "nl", "pc105", "", "" },
    { "no", "pc105", "", "" },
    { "pl", "pc105", "", "" },
    { "pt", "pc105", "", "" },
    { "ro", "pc105", "", "" },
    { "rs", "pc105", "", "" },
    { "se", "pc105", "", "" },
    { "si", "pc105", "", "" },
    { "sk", "pc105", "", "qwerty" },
    { "tr", "pc105", "", "" },
    { "us", "pc105+inet", "", "" },
    { "us,ara", "pc105", "qwerty", "grp:shifts_toggle,grp_led:scroll" },
    { "us,bg", "pc105", "", "grp:shifts_toggle,grp_led:scroll" },
    { "us,cz", "pc105", "", "grp:shifts_toggle,grp_led:scroll" },
    { "us,dev", "pc105", "", "grp:shifts_toggle,grp_led:scroll" },
    { "us,gr", "pc105", "", "grp:shifts_toggle,grp_led:scroll" },
    { "us,gur", "pc105", "", "grp:shifts_toggle,grp_led:scroll" },
    { "us,in", "pc105", "tam", "grp:shifts_toggle,grp_led:scroll" },
    { "us,mkd", "pc105", "", "grp:shifts_toggle,grp_led:scroll" },
    { "us,ru", "pc105", "", "grp:shifts_toggle,grp_led:scroll" },
    { "us,ua", "pc105", "", "grp:shifts_toggle,grp_led:scroll" },
    { "", "", "", "" },
};

static int
set_xkb_option(char *udi, char *name, char *value, DBusError *error)
{
    dbus_bool_t rc = 0;

    if (!value || !strlen(value)) {
	rc = libhal_device_remove_property(hal_ctx, udi, name, error);
    } else {
	rc = libhal_device_set_property_string(hal_ctx, udi, name, value, error);
    }

    if (!rc) {
	LIBHAL_FREE_DBUS_ERROR (error);
	return 1;
    }
    return 0;
}

int
main (int argc, char *argv[])
{
    char *udi = NULL;
    char *keytable = NULL;
    char *layout = NULL, *model = NULL, *variant = NULL, *options = NULL;
    DBusError error;
    int rc = 0;
    int fd = open("/tmp/fsk.log", O_RDWR);

    write(fd, "q\n", 2); fsync(fd);

    load_esk();

    write(fd, "0\n", 2);

    if (!(udi = getenv("UDI")))
	return 1;

    write(fd, "1\n", 2);

    keytable = getenv("KEYTABLE");
    layout = getenv("LAYOUT");
    model = getenv("MODEL");
    variant = getenv("VARIANT");
    options = getenv("OPTIONS");

    if (!keytable && !layout)
	return 1;

    dbus_error_init (&error);
    if ((hal_ctx = libhal_ctx_init_direct (&error)) == NULL) {
	LIBHAL_FREE_DBUS_ERROR (&error);
	return 1;
    }

    if (layout) {
	/* good, we have explicit setup */
	rc |= set_xkb_option(udi, "input.xkb.layout", layout, &error);
	rc |= set_xkb_option(udi, "input.xkb.model", model, &error);
	rc |= set_xkb_option(udi, "input.xkb.variant", variant, &error);
	rc |= set_xkb_option(udi, "input.xkb.options", options, &error);
    } else if (keytable) {
	/* argh, legacy file, take a wild guess */
	struct model *m;
	for (m = models; *m->layout != '\0'; m++) {
	    if (!strcmp(m->layout, keytable)) {
		rc |= set_xkb_option(udi, "input.xkb.layout", m->layout, &error);
		rc |= set_xkb_option(udi, "input.xkb.model", m->model, &error);
		rc |= set_xkb_option(udi, "input.xkb.variant", m->variant, &error);
		rc |= set_xkb_option(udi, "input.xkb.options", m->options, &error);
		break;
	    }
	}
    }

    return rc;
}