<?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) 2016-2025
	the Initial Developer. All Rights Reserved.

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

/**
 * groups class provides methods for add, delete groups, and add default groups
 *
 */
class groups {

	/**
	 * declare constant variables
	 */
	const app_name = 'groups';
	const app_uuid = '2caf27b0-540a-43d5-bb9b-c9871a1e4f84';

	/**
	 * declare public variables
	 */
	public $group_uuid;
	public $group_level;

	/**
	 * declare private variables
	 */
	private $database;
	private $groups;
	private $name;
	private $table;
	private $toggle_field;
	private $toggle_values;
	private $location;
	private $user_uuid;
	private $domain_uuid;

	/**
	 * Initializes the object with database connection, domain UUID and user UUID.
	 *
	 * @param database|null $database    Database instance or null to use default
	 * @param string|null   $domain_uuid Domain UUID or null to set later
	 * @param string|null   $user_uuid   User UUID or null to set later
	 */
	public function __construct(?database $database = null, $domain_uuid = null, $user_uuid = null) {

		//handle the database object
		$this->database = $database ?? database::new();

		//set the domain_uuid
		if (is_uuid($domain_uuid)) {
			$this->domain_uuid = $domain_uuid;
		}

		//set the user_uuid
		if (is_uuid($user_uuid)) {
			$this->user_uuid = $user_uuid;
		}

		//get the list of groups the user is a member of
		if (!empty($this->domain_uuid) && !empty($this->user_uuid)) {
			//get the groups and save them to the groups variable
			$this->groups = $this->assigned();

			//get the users group level
			$group_level = 0;
			foreach ($this->groups as $row) {
				if ($this->group_level < $row['group_level']) {
					$this->group_level = $row['group_level'];
				}
			}
		}
	}

	/**
	 * Retrieves assigned user groups for a given user.
	 *
	 * This method executes a SQL query to retrieve the assigned user groups
	 * for the specified domain and user. The results are returned as an array.
	 *
	 * @return array|null An array of assigned user groups, or null if no groups are assigned.
	 */
	public function assigned() {
		$sql = "select ";
		$sql .= "u.user_group_uuid, ";
		$sql .= "u.domain_uuid, ";
		$sql .= "u.user_uuid, ";
		$sql .= "u.group_uuid, ";
		$sql .= "g.group_name, ";
		$sql .= "g.group_level ";
		$sql .= "from ";
		$sql .= "v_user_groups as u, ";
		$sql .= "v_groups as g ";
		$sql .= "where u.domain_uuid = :domain_uuid ";
		$sql .= "and u.user_uuid = :user_uuid ";
		$sql .= "and u.group_uuid = g.group_uuid ";
		$parameters['domain_uuid'] = $this->domain_uuid;
		$parameters['user_uuid'] = $this->user_uuid;
		$groups = $this->database->select($sql, $parameters, 'all');
		unset($sql, $parameters);
		if (!empty($groups)) {
			return $groups;
		} else {
			return [];
		}
	}

	/**
	 * Get the groups for the current context.
	 *
	 * @return array An array of group information.
	 */
	public function get_groups() {
		//return the groups
		return $this->groups;
	}

	/**
	 * Delete multiple group member records.
	 *
	 * @param array $records Array of checked records to delete.
	 *
	 * @return void
	 */
	public function delete_members($records) {
		//assign the variables
		$this->name = 'group_member';
		$this->table = 'user_groups';
		$this->location = 'group_members.php?group_uuid=' . $this->group_uuid;

		if (permission_exists($this->name . '_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->location);
				exit;
			}

			//delete multiple records
			if (is_array($records) && @sizeof($records) != 0) {
				//build array of checked records
				foreach ($records as $x => $record) {
					if (!empty($record['checked']) && $record['checked'] == 'true' && is_uuid($record['uuid'])) {
						$array[$this->table][$x]['user_uuid'] = $record['uuid'];
						$array[$this->table][$x]['group_uuid'] = $this->group_uuid;
					}
				}

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

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

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

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

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

	/**
	 * Deletes one or multiple 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) {
		//assign the variables
		$this->name = 'group';
		$this->table = 'groups';
		$this->location = 'groups.php';

		if (permission_exists($this->name . '_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->location);
				exit;
			}

			//delete multiple records
			if (is_array($records) && @sizeof($records) != 0) {
				//build array of checked records
				foreach ($records as $x => $record) {
					if (!empty($record['checked']) && $record['checked'] == 'true' && is_uuid($record['uuid'])) {
						$array[$this->table][$x][$this->name . '_uuid'] = $record['uuid'];
						$array['group_permissions'][$x][$this->name . '_uuid'] = $record['uuid'];
					}
				}

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

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

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

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

					//set message
					message::add($text['message-delete']);
				}
				unset($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) {
		//assign the variables
		$this->name = 'group';
		$this->table = 'groups';
		$this->toggle_field = 'group_protected';
		$this->toggle_values = ['true', 'false'];
		$this->location = 'groups.php';

		if (permission_exists($this->name . '_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->location);
				exit;
			}

			//toggle the checked records
			if (is_array($records) && @sizeof($records) != 0) {
				//get current toggle state
				foreach ($records as $record) {
					if (!empty($record['checked']) && $record['checked'] == 'true' && is_uuid($record['uuid'])) {
						$uuids[] = "'" . $record['uuid'] . "'";
					}
				}
				if (is_array($uuids) && @sizeof($uuids) != 0) {
					$sql = "select " . $this->name . "_uuid as uuid, " . $this->toggle_field . " as toggle from v_" . $this->table . " ";
					$sql .= "where (domain_uuid = :domain_uuid or domain_uuid is null) ";
					$sql .= "and " . $this->name . "_uuid in (" . implode(', ', $uuids) . ") ";
					$parameters['domain_uuid'] = $this->domain_uuid;
					$rows = $this->database->select($sql, $parameters, 'all');
					if (is_array($rows) && @sizeof($rows) != 0) {
						foreach ($rows as $row) {
							$states[$row['uuid']] = $row['toggle'];
						}
					}
					unset($sql, $parameters, $rows, $row);
				}

				//build update array
				$x = 0;
				foreach ($states as $uuid => $state) {
					//create the array
					$array[$this->table][$x][$this->name . '_uuid'] = $uuid;
					$array[$this->table][$x][$this->toggle_field] = $state == $this->toggle_values[0] ? $this->toggle_values[1] : $this->toggle_values[0];

					//increment the id
					$x++;
				}

				//save the changes
				if (is_array($array) && @sizeof($array) != 0) {
					//save the array
					$this->database->save($array);
					unset($array);

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

	/**
	 * Copies one or more records
	 *
	 * @param array $records  An array of record IDs to delete, where each ID is an associative array
	 *                        containing 'uuid' and 'checked' keys. The 'checked' value indicates
	 *                        whether the corresponding checkbox was checked for deletion.
	 *
	 * @return void No return value; this method modifies the database state and sets a message.
	 */
	public function copy($records) {
		//assign the variables
		$this->name = 'group';
		$this->table = 'groups';
		$this->location = 'groups.php';

		if (permission_exists($this->name . '_add')) {

			//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->location);
				exit;
			}

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

				//get checked records
				foreach ($records as $record) {
					if (!empty($record['checked']) && $record['checked'] == 'true' && is_uuid($record['uuid'])) {
						$uuids[] = "'" . $record['uuid'] . "'";
					}
				}

				//create the array from existing data
				if (is_array($uuids) && @sizeof($uuids) != 0) {

					//primary table
					$sql = "select * from v_" . $this->table . " ";
					$sql .= "where (domain_uuid = :domain_uuid or domain_uuid is null) ";
					$sql .= "and " . $this->name . "_uuid in (" . implode(', ', $uuids) . ") ";
					$parameters['domain_uuid'] = $this->domain_uuid;
					$rows = $this->database->select($sql, $parameters, 'all');
					if (is_array($rows) && @sizeof($rows) != 0) {
						$y = 0;
						foreach ($rows as $x => $row) {
							$primary_uuid = uuid();

							//convert boolean values to a string
							foreach ($row as $key => $value) {
								if (gettype($value) == 'boolean') {
									$value = $value ? 'true' : 'false';
									$row[$key] = $value;
								}
							}

							//copy data
							$array[$this->table][$x] = $row;

							//overwrite
							$array[$this->table][$x][$this->name . '_uuid'] = $primary_uuid;
							$array[$this->table][$x][$this->name . '_description'] = trim($row[$this->name . '_description']) . ' (' . $text['label-copy'] . ')';

							//permissions sub table
							$sql_2 = "select * from v_group_permissions where group_uuid = :group_uuid";
							$parameters_2['group_uuid'] = $row['group_uuid'];
							$rows_2 = $this->database->select($sql_2, $parameters_2, 'all');
							if (is_array($rows_2) && @sizeof($rows_2) != 0) {
								foreach ($rows_2 as $row_2) {
									//convert boolean values to a string
									foreach ($row_2 as $key => $value) {
										if (gettype($value) == 'boolean') {
											$value = $value ? 'true' : 'false';
											$row_2[$key] = $value;
										}
									}

									//copy data
									$array['group_permissions'][$y] = $row_2;

									//overwrite
									$array['group_permissions'][$y]['group_permission_uuid'] = uuid();
									$array['group_permissions'][$y]['group_uuid'] = $primary_uuid;

									//increment
									$y++;

								}
							}
							unset($sql_2, $parameters_2, $rows_2, $row_2);
						}
					}
					unset($sql, $parameters, $rows, $row);
				}

				//save the changes and set the message
				if (is_array($array) && @sizeof($array) != 0) {
					//save the array
					$this->database->save($array);
					unset($array);

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

	/**
	 * Set default groups and permissions if none are set.
	 *
	 * This method checks for the presence of groups and group permissions in the database.
	 * If no groups or group permissions exist, it sets default values.
	 */
	public function defaults() {

		//if the are no groups add the default groups
		$sql = "select * from v_groups ";
		$sql .= "where domain_uuid is null ";
		$result = $this->database->select($sql, null, 'all');
		if (count($result) == 0) {
			$x = 0;
			$array['groups'][$x]['group_uuid'] = uuid();
			$array['groups'][$x]['domain_uuid'] = null;
			$array['groups'][$x]['group_name'] = 'superadmin';
			$array['groups'][$x]['group_level'] = '80';
			$array['groups'][$x]['group_description'] = 'Super Administrator Group';
			$array['groups'][$x]['group_protected'] = 'false';
			$group_uuids[$array['groups'][$x]['group_name']] = $array['groups'][$x]['group_uuid'];
			$x++;
			$array['groups'][$x]['group_uuid'] = uuid();
			$array['groups'][$x]['domain_uuid'] = null;
			$array['groups'][$x]['group_name'] = 'admin';
			$array['groups'][$x]['group_level'] = '50';
			$array['groups'][$x]['group_description'] = 'Administrator Group';
			$array['groups'][$x]['group_protected'] = 'false';
			$group_uuids[$array['groups'][$x]['group_name']] = $array['groups'][$x]['group_uuid'];
			$x++;
			$array['groups'][$x]['group_uuid'] = uuid();
			$array['groups'][$x]['domain_uuid'] = null;
			$array['groups'][$x]['group_name'] = 'user';
			$array['groups'][$x]['group_level'] = '30';
			$array['groups'][$x]['group_description'] = 'User Group';
			$array['groups'][$x]['group_protected'] = 'false';
			$group_uuids[$array['groups'][$x]['group_name']] = $array['groups'][$x]['group_uuid'];
			$x++;
			$array['groups'][$x]['group_uuid'] = uuid();
			$array['groups'][$x]['domain_uuid'] = null;
			$array['groups'][$x]['group_name'] = 'agent';
			$array['groups'][$x]['group_level'] = '20';
			$array['groups'][$x]['group_description'] = 'Call Center Agent Group';
			$array['groups'][$x]['group_protected'] = 'false';
			$group_uuids[$array['groups'][$x]['group_name']] = $array['groups'][$x]['group_uuid'];
			$x++;
			$array['groups'][$x]['group_uuid'] = uuid();
			$array['groups'][$x]['domain_uuid'] = null;
			$array['groups'][$x]['group_name'] = 'fax';
			$array['groups'][$x]['group_level'] = '20';
			$array['groups'][$x]['group_description'] = 'Fax User Group';
			$array['groups'][$x]['group_protected'] = 'false';
			$group_uuids[$array['groups'][$x]['group_name']] = $array['groups'][$x]['group_uuid'];
			$x++;
			$array['groups'][$x]['group_uuid'] = uuid();
			$array['groups'][$x]['domain_uuid'] = null;
			$array['groups'][$x]['group_name'] = 'public';
			$array['groups'][$x]['group_level'] = '10';
			$array['groups'][$x]['group_description'] = 'Public Group';
			$array['groups'][$x]['group_protected'] = 'false';
			$group_uuids[$array['groups'][$x]['group_name']] = $array['groups'][$x]['group_uuid'];

			//add the temporary permissions
			$p = permissions::new();
			$p->add("group_add", "temp");
			$p->add("group_edit", "temp");

			//save the data to the database
			$this->database->save($array);
			unset($array);

			//remove the temporary permission
			$p->delete("group_add", "temp");
			$p->delete("group_edit", "temp");
		}
		unset($result);

		//if there are no permissions listed in v_group_permissions then set the default permissions
		$sql = "select count(*) from v_group_permissions ";
		$sql .= "where domain_uuid is null ";
		$num_rows = $this->database->select($sql, null, 'column');
		if ($num_rows == 0) {
			//build the apps array
			$config_list = glob(dirname(__DIR__, 2) . "/*/*/app_config.php");
			$x = 0;
			foreach ($config_list as $config_path) {
				include($config_path);
				$x++;
			}

			//no permissions found add the defaults
			foreach ($apps as $app) {
				if (is_array($app['permissions'])) foreach ($app['permissions'] as $row) {
					if (is_array($row['groups'])) foreach ($row['groups'] as $group) {
						$x++;
						$array['group_permissions'][$x]['group_permission_uuid'] = uuid();
						$array['group_permissions'][$x]['domain_uuid'] = null;
						$array['group_permissions'][$x]['permission_name'] = $row['name'];
						$array['group_permissions'][$x]['permission_protected'] = 'false';
						$array['group_permissions'][$x]['permission_assigned'] = 'true';
						$array['group_permissions'][$x]['group_name'] = $group;
						$array['group_permissions'][$x]['group_uuid'] = $group_uuids[$group];
					}
				}
			}
			unset($group_uuids);

			//add the temporary permissions
			$p = permissions::new();
			$p->add("group_permission_add", "temp");
			$p->add("group_permission_edit", "temp");

			//save the data to the database
			$this->database->save($array);
			unset($array);

			//remove the temporary permission
			$p->delete("group_permission_add", "temp");
			$p->delete("group_permission_edit", "temp");
		}
	}

	/**
	 * Stores user data and groups in the session.
	 *
	 * This method populates several session variables with relevant user and group information.
	 *
	 * @return void
	 */
	public function session() {
		$_SESSION["groups"] = $this->groups;
		$_SESSION["user"]["groups"] = $this->groups;
		$_SESSION["user"]["group_level"] = $this->group_level;
	}
}