/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

/*
 * Copyright (c) 2014 Samsung Electronics Co., Ltd All Rights Reserved
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#define _POSIX_SOURCE

#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <signal.h>
#include <unistd.h>
#include <stdbool.h>
#include <libconfig.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>

#include <sys/stat.h>
#include <sys/types.h>
#include <sys/reboot.h>

#include <vconf/vconf-keys.h>
#include <asm-generic/setup.h> // for COMMAND_LINE_SIZE

#include "system-recovery.h"

void sys_power_reboot(void)
{
	reboot(RB_AUTOBOOT);
}

#define KERNEL_CMDLINE_KEY "tizen.recovery"

// looks for tizen.recovery= key in kernel command line
char *get_action_from_cmdline(void)
{
	FILE *fp;
	char cmdline[COMMAND_LINE_SIZE];
	int len;

	fp = fopen("/proc/cmdline", "r");
	if (!fp)
		return NULL;

	char *p = fgets(cmdline, sizeof cmdline, fp);
	fclose(fp);
	if (!p)
		return NULL;

	const char *prefix = KERNEL_CMDLINE_KEY "=";
	p = strstr(cmdline, prefix);
	if (!p)
		return NULL;
	p += strlen(prefix);

	for (len = 0; *(p + len) != 0 && !isspace(*(p + len)); ++len)
		; /* skip */

	return strndup(p, len);
}


int main(void)
{
	config_t cfg;
	int ret;

	LOGD("[main] recovery started.\n");

	config_init(&cfg);
	ret = config_read_file(&cfg, SYSTEM_RECOVERY_CONFIG_FILE);
	if (ret == CONFIG_FALSE) {
		LOGD("Can't read config file");
		return 1;
	}

#ifdef RECOVERY_GUI
	ret = recovery_gui(&cfg);
#else
	ret = recovery_headless(&cfg);
#endif

	LOGD("[main] recovery finished.\n");
	config_destroy(&cfg);

	return ret;
}