<?php
/*
 FusionPBX
 Version: MPL 1.1

 The contents of this file are subject to the Mozilla Public License Version
 1.1 (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.mozilla.org/MPL/

 Software distributed under the License is distributed on an "AS IS" basis,
 WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 for the specific language governing rights and limitations under the
 License.

 The Original Code is FusionPBX

 The Initial Developer of the Original Code is
 Mark J Crane <markjcrane@fusionpbx.com>
 Portions created by the Initial Developer are Copyright (C) 2008-2023
 the Initial Developer. All Rights Reserved.

 Contributor(s):
 Mark J Crane <markjcrane@fusionpbx.com>
*/

//define the sip profiles class
class sip_profiles {

	/**
	 * declare constant variables
	 */
	const app_name = 'sip_profiles';
	const app_uuid = 'a6a7c4c5-340a-43ce-bcbc-2ed9bab8659d';

	/**
	 * Set in the constructor. Must be a database object and cannot be null.
	 *
	 * @var database Database Object
	 */
	private $database;

	/**
	 * Settings object set in the constructor. Must be a settings object and cannot be null.
	 *
	 * @var settings Settings Object
	 */
	private $settings;

	/**
	 * User UUID set in the constructor. This can be passed in through the $settings_array associative array or set in
	 * the session global array
	 *
	 * @var string
	 */
	private $user_uuid;

	/**
	 * Domain UUID set in the constructor. This can be passed in through the $settings_array associative array or set
	 * in the session global array
	 *
	 * @var string
	 */
	private $domain_uuid;

	/**
	 * declare private variables
	 */
	private $permission_prefix;
	private $list_page;
	private $table;
	private $uuid_prefix;
	private $toggle_field;
	private $toggle_values;

	/**
	 * declare public variables
	 */
	public $sip_profile_uuid;

	/**
	 * Initializes the object with setting array.
	 *
	 * @param array $setting_array An array containing settings for domain, user, and database connections. Defaults to
	 *                             an empty array.
	 *
	 * @return void
	 */
	public function __construct(array $setting_array = []) {
		//set domain and user UUIDs
		$this->domain_uuid = $setting_array['domain_uuid'] ?? $_SESSION['domain_uuid'] ?? '';
		$this->user_uuid   = $setting_array['user_uuid'] ?? $_SESSION['user_uuid'] ?? '';

		//set objects
		$this->database = $setting_array['database'] ?? database::new();
		$this->settings = $setting_array['settings'] ?? new settings(['database' => $this->database, 'domain_uuid' => $this->domain_uuid, 'user_uuid' => $this->user_uuid]);

		//assign private variables
		$this->permission_prefix = 'sip_profile_';
		$this->list_page         = 'sip_profiles.php';
		$this->table             = 'sip_profiles';
		$this->uuid_prefix       = 'sip_profile_';
		$this->toggle_field      = 'sip_profile_enabled';
		$this->toggle_values     = ['true', 'false'];
	}

	/**
	 * Deletes one or more records.
	 *
	 * @param array $records An array of record IDs to delete, where each ID is an associative array
	 *                       containing 'uuid' and 'checked' keys. The 'checked' value indicates
	 *                       whether the corresponding checkbox was checked for deletion.
	 *
	 * @return void No return value; this method modifies the database state and sets a message.
	 */
	public function delete($records) {
		if (permission_exists($this->permission_prefix . 'delete')) {

			//add multi-lingual support
			$language = new text;
			$text     = $language->get();

			//validate the token
			$token = new token;
			if (!$token->validate($_SERVER['PHP_SELF'])) {
				message::add($text['message-invalid_token'], 'negative');
				header('Location: ' . $this->list_page);
				exit;
			}

			//delete multiple records
			if (is_array($records) && @sizeof($records) != 0) {

				//filter out unchecked sip profiles, build where clause for below
				foreach ($records as $x => $record) {
					if (!empty($record['checked']) && $record['checked'] == 'true' && is_uuid($record['uuid'])) {
						$uuids[] = "'" . $record['uuid'] . "'";
					}
				}

				//get necessary sip profile details
				$sql  = "select " . $this->uuid_prefix . "uuid as uuid, sip_profile_name, sip_profile_hostname from v_" . $this->table . " ";
				$sql  .= "where " . $this->uuid_prefix . "uuid in (" . implode(', ', $uuids) . ") ";
				$rows = $this->database->select($sql, $parameters ?? null, 'all');
				if (is_array($rows) && @sizeof($rows) != 0) {
					foreach ($rows as $row) {
						$sip_profiles[$row['uuid']]['name']     = $row['sip_profile_name'];
						$sip_profiles[$row['uuid']]['hostname'] = $row['sip_profile_hostname'];
					}
				}
				unset($sql, $parameters, $rows, $row);

				//build the delete array
				$x = 0;
				foreach ($sip_profiles as $sip_profile_uuid => $sip_profile) {
					$array[$this->table][$x][$this->uuid_prefix . 'uuid']           = $sip_profile_uuid;
					$array['sip_profile_domains'][$x][$this->uuid_prefix . 'uuid']  = $sip_profile_uuid;
					$array['sip_profile_settings'][$x][$this->uuid_prefix . 'uuid'] = $sip_profile_uuid;
					$x++;
				}

				//delete the checked rows
				if (is_array($array) && @sizeof($array) != 0) {

					//grant temporary permissions
					$p = permissions::new();
					$p->add('sip_profile_domain_delete', 'temp');
					$p->add('sip_profile_setting_delete', 'temp');

					//execute delete
					$this->database->delete($array);
					unset($array);

					//revoke temporary permissions
					$p->delete('sip_profile_domain_delete', 'temp');
					$p->delete('sip_profile_setting_delete', 'temp');

					//delete the xml sip profile and directory
					$switch_conf_dir = $this->settings->get('switch', 'conf');
					foreach ($sip_profiles as $sip_profile_uuid => $sip_profile) {
						@unlink($switch_conf_dir . "/sip_profiles/" . $sip_profile['name'] . ".xml");
						@unlink($switch_conf_dir . "/sip_profiles/" . $sip_profile['name']);
					}

					//save the sip profile xml
					save_sip_profile_xml();

					//apply settings reminder
					$_SESSION["reload_xml"] = true;

					//determine hostnames, get system hostname if necessary
					$empty_hostname = false;
					foreach ($sip_profiles as $sip_profile_uuid => $sip_profile) {
						if ($sip_profile['hostname'] != '') {
							$hostnames[] = $sip_profile['hostname'];
						} else {
							$empty_hostname = true;
						}
					}
					if ($empty_hostname) {
						$hostnames[] = gethostname();
					}

					//clear the cache
					if (is_array($hostnames) && @sizeof($hostnames) != 0) {
						$hostnames = array_unique($hostnames);
						$cache     = new cache;
						foreach ($hostnames as $hostname) {
							$cache->delete($hostname . ":configuration:sofia.conf");
						}
					}

					//set message
					message::add($text['message-delete']);
				}
				unset($records, $sip_profiles);
			}
		}
	}

	/**
	 * Deletes specified domains from the system.
	 *
	 * @param array $records An array of records to be deleted, each containing 'checked' and 'uuid' keys.
	 *
	 * @return void
	 */
	public function delete_domains($records) {
		//assign private variables
		$this->permission_prefix = 'sip_profile_domain_';
		$this->list_page         = 'sip_profile_edit.php?id=' . $this->sip_profile_uuid;
		$this->table             = 'sip_profile_domains';
		$this->uuid_prefix       = 'sip_profile_domain_';

		if (permission_exists($this->permission_prefix . 'delete')) {

			//add multi-lingual support
			$language = new text;
			$text     = $language->get();

			//validate the token
			$token = new token;
			if (!$token->validate($_SERVER['PHP_SELF'])) {
				message::add($text['message-invalid_token'], 'negative');
				header('Location: ' . $this->list_page);
				exit;
			}

			//delete multiple records
			if (is_array($records) && @sizeof($records) != 0) {

				//filter out unchecked sip profiles, build the delete array
				foreach ($records as $x => $record) {
					if (!empty($record['checked']) && $record['checked'] == 'true' && is_uuid($record['uuid'])) {
						$array[$this->table][$x][$this->uuid_prefix . 'uuid'] = $record['uuid'];
						$array[$this->table][$x]['sip_profile_uuid']          = $this->sip_profile_uuid;
					}
				}

				//get necessary sip profile details
				if (!empty($this->sip_profile_uuid) && is_uuid($this->sip_profile_uuid)) {
					$sql                            = "select sip_profile_hostname from v_sip_profiles ";
					$sql                            .= "where sip_profile_uuid = :sip_profile_uuid ";
					$parameters['sip_profile_uuid'] = $this->sip_profile_uuid;
					$sip_profile_hostname           = $this->database->select($sql, $parameters, 'column');
					unset($sql, $parameters);
				}

				//delete the checked rows
				if (!empty($array) && @sizeof($array) != 0) {

					//execute delete
					$this->database->delete($array);
					unset($array);

					//save the sip profile xml
					save_sip_profile_xml();

					//apply settings reminder
					$_SESSION["reload_xml"] = true;

					//get system hostname if necessary
					if (empty($sip_profile_hostname)) {
						$sip_profile_hostname = gethostname();
					}

					//clear the cache
					if (!empty($sip_profile_hostname)) {
						$cache = new cache;
						$cache->delete($sip_profile_hostname . ":configuration:sofia.conf");
					}

				}
				unset($records);
			}
		}
	}

	/**
	 * Deletes settings for one or more sip profiles.
	 *
	 * @param array $records An associative array containing the records to delete, where each record is an associative array
	 *                       with 'uuid' and optionally 'checked' keys. Defaults to an empty array.
	 *
	 * @return void
	 */
	public function delete_settings($records) {
		//assign private variables
		$this->permission_prefix = 'sip_profile_setting_';
		$this->list_page         = 'sip_profile_edit.php?id=' . $this->sip_profile_uuid;
		$this->table             = 'sip_profile_settings';
		$this->uuid_prefix       = 'sip_profile_setting_';

		if (permission_exists($this->permission_prefix . 'delete')) {

			//add multi-lingual support
			$language = new text;
			$text     = $language->get();

			//validate the token
			$token = new token;
			if (!$token->validate($_SERVER['PHP_SELF'])) {
				message::add($text['message-invalid_token'], 'negative');
				header('Location: ' . $this->list_page);
				exit;
			}

			//delete multiple records
			if (!empty($records) && @sizeof($records) != 0) {

				//filter out unchecked sip profiles, build the delete array
				foreach ($records as $x => $record) {
					if (!empty($record['checked']) && $record['checked'] == 'true' && is_uuid($record['uuid'])) {
						$array[$this->table][$x][$this->uuid_prefix . 'uuid'] = $record['uuid'];
						$array[$this->table][$x]['sip_profile_uuid']          = $this->sip_profile_uuid;
					}
				}

				//get necessary sip profile details
				if (!empty($this->sip_profile_uuid) && is_uuid($this->sip_profile_uuid)) {
					$sql                            = "select sip_profile_hostname from v_sip_profiles ";
					$sql                            .= "where sip_profile_uuid = :sip_profile_uuid ";
					$parameters['sip_profile_uuid'] = $this->sip_profile_uuid;
					$sip_profile_hostname           = $this->database->select($sql, $parameters, 'column');
					unset($sql, $parameters);
				}

				//delete the checked rows
				if (!empty($array) && @sizeof($array) != 0) {

					//execute delete
					$this->database->delete($array);
					unset($array);

					//save the sip profile xml
					save_sip_profile_xml();

					//apply settings reminder
					$_SESSION["reload_xml"] = true;

					//get system hostname if necessary
					if (empty($sip_profile_hostname)) {
						$sip_profile_hostname = gethostname();
					}

					//clear the cache
					if (!empty($sip_profile_hostname)) {
						$cache = new cache;
						$cache->delete($sip_profile_hostname . ":configuration:sofia.conf");
					}

				}
				unset($records);
			}
		}
	}

	/**
	 * Toggles the state of one or more records.
	 *
	 * @param array $records  An array of record IDs to delete, where each ID is an associative array
	 *                        containing 'uuid' and 'checked' keys. The 'checked' value indicates
	 *                        whether the corresponding checkbox was checked for deletion.
	 *
	 * @return void No return value; this method modifies the database state and sets a message.
	 */
	public function toggle($records) {
		if (permission_exists($this->permission_prefix . 'edit')) {

			//add multi-lingual support
			$language = new text;
			$text     = $language->get();

			//validate the token
			$token = new token;
			if (!$token->validate($_SERVER['PHP_SELF'])) {
				message::add($text['message-invalid_token'], 'negative');
				header('Location: ' . $this->list_page);
				exit;
			}

			//toggle the checked records
			if (is_array($records) && @sizeof($records) != 0) {

				//get current toggle state
				foreach ($records as $x => $record) {
					if (!empty($record['checked']) && $record['checked'] == 'true' && is_uuid($record['uuid'])) {
						$uuids[] = "'" . $record['uuid'] . "'";
					}
				}
				if (!empty($uuids) && @sizeof($uuids) != 0) {
					$sql  = "select " . $this->uuid_prefix . "uuid as uuid, " . $this->toggle_field . " as toggle, sip_profile_hostname from v_" . $this->table . " ";
					$sql  .= "where " . $this->uuid_prefix . "uuid in (" . implode(', ', $uuids) . ") ";
					$rows = $this->database->select($sql, $parameters ?? null, 'all');
					if (is_array($rows) && @sizeof($rows) != 0) {
						foreach ($rows as $row) {
							$sip_profiles[$row['uuid']]['state']    = $row['toggle'];
							$sip_profiles[$row['uuid']]['hostname'] = $row['sip_profile_hostname'];
						}
					}
					unset($sql, $parameters, $rows, $row);
				}

				//build update array
				$x = 0;
				foreach ($sip_profiles as $uuid => $sip_profile) {
					$array[$this->table][$x][$this->uuid_prefix . 'uuid'] = $uuid;
					$array[$this->table][$x][$this->toggle_field]         = $sip_profile['state'] == $this->toggle_values[0] ? $this->toggle_values[1] : $this->toggle_values[0];
					$x++;
				}

				//save the changes
				if (!empty($array) && @sizeof($array) != 0) {

					//save the array

					$this->database->save($array);
					unset($array);

					//determine hostnames, get system hostname if necessary
					$empty_hostname = false;
					foreach ($sip_profiles as $sip_profile_uuid => $sip_profile) {
						if ($sip_profile['hostname'] != '') {
							$hostnames[] = $sip_profile['hostname'];
						} else {
							$empty_hostname = true;
						}
					}
					if ($empty_hostname) {
						$esl = event_socket::create();
						if ($esl->is_connected()) {
							$hostnames[] = gethostname();
						}
					}

					//clear the cache
					if (!empty($hostnames) && @sizeof($hostnames) != 0) {
						$hostnames = array_unique($hostnames);
						$cache     = new cache;
						foreach ($hostnames as $hostname) {
							$cache->delete($hostname . ":configuration:sofia.conf");
						}
					}

					//save the sip profile xml
					save_sip_profile_xml();

					//apply settings reminder
					$_SESSION["reload_xml"] = true;

					//set message
					message::add($text['message-toggle']);
				}
				unset($records, $states);
			}

		}
	}

}