/*
 * This Source Code Form is subject to the terms of the Mozilla Public License,
 * v. 2.0. If a copy of the MPL was not distributed with this file, You can
 * obtain one at https://mozilla.org/MPL/2.0/.
 */


#include <stdio.h>

#include <zephyr/init.h>
#include <zephyr/logging/log.h>
#include <zephyr/settings/settings.h>

#include "settings.h"


LOG_MODULE_DECLARE(settings);


int init_settings(void) {
	int ret = settings_subsys_init();
	if (ret < 0) {
		LOG_ERR("Subsystem init failed (%d)", ret);
		return ret;
	}
	LOG_INF("Subsystem initialized");

	ret = settings_load();
	if (ret < 0) {
		LOG_ERR("Failed to load settings (%d)", ret);
		return ret;
	}
	LOG_INF("Loaded settings");

	return 0;
}
SYS_INIT(init_settings, APPLICATION, 50);

int settings_to_json(void *buffer, size_t len)
{
	static const char format[] = "{\"syslog\":{\"target\":{\"ip\":\"%s\"}}}\n";

	char ip[100];
	int ret = settings_runtime_get("syslog/target/ip", ip, sizeof(ip));
	if (ret < 0) {
		LOG_ERR("Failed to get runtime setting syslog/target/ip (%d)", ret);
		return ret;
	}

	ret = snprintf(buffer, len, format, ip);

	if (ret >= len) {
		LOG_ERR("Buffer too small to serialize settings as JSON");
		return -ENOMEM;
	}

	if (ret < 0) {
		LOG_ERR("Failed to serialize settings as JSON");
	}

	return ret;
}