#!/usr/bin/env php
<?php
/*
 +-------------------------------------------------------------------------+
 | Copyright (C) 2004-2026 The Cacti Group                                 |
 |                                                                         |
 | 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.                            |
 +-------------------------------------------------------------------------+
 | Cacti: The Complete RRDtool-based Graphing Solution                     |
 +-------------------------------------------------------------------------+
 | This code is designed, written, and maintained by the Cacti Group. See  |
 | about.php and/or the AUTHORS file for specific developer information.   |
 +-------------------------------------------------------------------------+
 | http://www.cacti.net/                                                   |
 +-------------------------------------------------------------------------+
*/

require(__DIR__ . '/../include/cli_check.php');
require_once(CACTI_PATH_LIBRARY . '/api_data_source.php');
require_once(CACTI_PATH_LIBRARY . '/poller.php');
require_once(CACTI_PATH_LIBRARY . '/utility.php');

ini_set('max_execution_time', '0');

// switch to main database for cli's
if (POLLER_ID > 1) {
	db_switch_remote_to_main();
}

// process calling arguments
$parms = $_SERVER['argv'];
array_shift($parms);

// utility requires input parameters
if (cacti_sizeof($parms) == 0) {
	print 'ERROR: You must supply input parameters' . PHP_EOL . PHP_EOL;
	display_help();

	exit(1);
}

$debug   = false;
$host_id = '';
$filter  = '';

if (cacti_sizeof($parms)) {
	foreach ($parms as $parameter) {
		if (str_contains($parameter, '=')) {
			[$arg, $value] = explode('=', $parameter, 2);
		} else {
			$arg   = $parameter;
			$value = '';
		}

		switch ($arg) {
			case '-id':
			case '--id':
			case '--host-id':
				$host_id = $value;

				break;
			case '-s':
			case '--filter':
				$filter = $value;

				break;
			case '-d':
			case '--debug':
				$debug = true;

				break;
			case '--version':
			case '-v':
			case '-V':
				display_version();

				exit(0);
			case '--help':
			case '-H':
			case '-h':
				display_help();

				exit(0);

			default:
				print 'ERROR: Invalid Parameter ' . $parameter . PHP_EOL . PHP_EOL;
				display_help();

				exit(1);
		}
	}
}

// form the 'where' clause for our main sql query
if ($filter != '') {
	$sql_where = "AND (data_template_data.name_cache like '%" . $filter . "%'" .
	" OR data_template_data.local_data_id like '%" . $filter . "%'" .
	" OR data_template.name like '%" . $filter . "%'" .
	" OR data_input.name like '%" . $filter . "%')";
} else {
	$sql_where = '';
}

if (cacti_strtolower($host_id) == 'all') {
	// Act on all graphs
} elseif (substr_count($host_id, ',')) {
	$hosts    = explode(',', $host_id);
	$host_str = '';

	foreach ($hosts as $host) {
		if (is_numeric($host) && $host > 0) {
			$host_str .= ($host_str != '' ? ', ' : '') . $host;
		}
	}

	$sql_where .= " AND data_local.host_id IN ($host_str)";
} elseif ($host_id == '0') {
	$sql_where .= ' AND data_local.host_id=0';
} elseif (!empty($host_id) && $host_id > 0) {
	$sql_where .= ' AND data_local.host_id=' . $host_id;
} else {
	print "ERROR: You must specify either a host_id or 'all' to proceed." . PHP_EOL;
	display_help();

	exit;
}

$data_source_list_sql = "SELECT data_template_data.local_data_id, data_template_data.name_cache, data_template_data.active,
	data_input.name as data_input_name, data_template.name as data_template_name, data_local.host_id
	FROM (data_local,data_template_data)
	LEFT JOIN data_input
	ON (data_input.id=data_template_data.data_input_id)
	LEFT JOIN data_template
	ON (data_local.data_template_id=data_template.id)
	WHERE data_local.id=data_template_data.local_data_id
	$sql_where";

$data_source_list = db_fetch_assoc($data_source_list_sql);

// issue warnings and start message if applicable
if (cacti_sizeof($data_source_list)) {
	print 'WARNING: Do not interrupt this script.  Interrupting during rename can cause issues' . PHP_EOL;

	debug("There are '" . cacti_sizeof($data_source_list) . "' Data Sources to rename");

	$i = 1;

	foreach ($data_source_list as $data_source) {
		if (!$debug) {
			print '.';
		}

		debug("Data Source Name '" . $data_source['name_cache'] . "' starting");

		api_reapply_suggested_data_source_data($data_source['local_data_id']);

		update_data_source_title_cache($data_source['local_data_id']);

		debug("Data Source Rename Done for Data Source '" .
			addslashes(get_data_source_title($data_source['local_data_id'])) .
			"'");

		$i++;
	}
} else {
	if ($debug) {
		print PHP_EOL;
		print '--------------------------' . PHP_EOL;
		print 'Data Source Selection SQL:' . PHP_EOL;
		print '--------------------------' . PHP_EOL;
		print $data_source_list_sql . PHP_EOL;
		print '--------------------------' . PHP_EOL . PHP_EOL;
	}

	print 'WARNING: No Data Sources where found matching the selected criteria.' . PHP_EOL;
}

function debug(string $message) : void {
	global $debug;

	if ($debug) {
		print('DEBUG: ' . trim($message) . PHP_EOL);
	}
}

/**
 * display_version - displays version information
 *
 * @return void
 */
function display_version() : void {
	$version = get_cacti_cli_version();
	print "Cacti Reapply Data Source Names Utility, Version $version, " . COPYRIGHT_YEARS . PHP_EOL;
}

/**
 * display_help - displays the usage of the function
 *
 * @return void
 */
function display_help() : void {
	display_version();

	print PHP_EOL;
	print ('usage: poller_data_sources_reapply_names.php ' .
		'--host-id=[id|all][N1,N2,...] [--filter=string] [--debug]') . PHP_EOL . PHP_EOL;

	print 'A utility that will recalculate Data Source names for the selected Data Templates.' . PHP_EOL . PHP_EOL;

	print 'Required:' . PHP_EOL;
	print "    --host-id=N|all|N1,N2,... - The devices id, 'all' or a comma delimited list of id's" . PHP_EOL;

	print 'Optional:' . PHP_EOL;
	print '    --filter=search           - A Data Template name or Data Source Title to search for' . PHP_EOL;
	print '    --debug                   - Display verbose output during execution' . PHP_EOL . PHP_EOL;
}