<?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 phrases class
	class phrases {

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

		/**
		 * declare public variables
		 */
		public $phrase_uuid;

		/**
		 * called when the object is created
		 */
		public function __construct() {

			//assign private variables
				$this->app_name = 'phrases';
				$this->app_uuid = '5c6f597c-9b78-11e4-89d3-123b93f75cba';
				$this->permission_prefix = 'phrase_';
				$this->list_page = 'phrases.php';
				$this->table = 'phrases';
				$this->uuid_prefix = 'phrase_';
				$this->toggle_field = 'phrase_enabled';
				$this->toggle_values = ['true','false'];

		}

		/**
		 * delete records
		 */
		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: '.$this->list_page);$is_uuid
						exit;
					}

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

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

						//get phrase languages
							if (is_array($uuids) && @sizeof($uuids) != 0) {
								$sql = "select ".$this->uuid_prefix."uuid as uuid, phrase_language as lang from v_".$this->table." ";
								$sql .= "where domain_uuid = :domain_uuid ";
								$sql .= "and ".$this->uuid_prefix."uuid in (".implode(', ', $uuids).") ";
								$parameters['domain_uuid'] = $_SESSION['domain_uuid'];
								$database = new database;
								$rows = $database->select($sql, $parameters, 'all');
								if (is_array($rows) && @sizeof($rows) != 0) {
									foreach ($rows as $row) {
										$phrase_languages[$row['uuid']] = $row['lang'];
									}
								}
								unset($sql, $parameters, $rows, $row);
							}

						//build the delete array
							if (is_array($phrase_languages) && @sizeof($phrase_languages) != 0) {
								$x = 0;
								foreach ($phrase_languages as $phrase_uuid => $phrase_language) {
									$array[$this->table][$x][$this->uuid_prefix.'uuid'] = $phrase_uuid;
									$array[$this->table][$x]['domain_uuid'] = $_SESSION['domain_uuid'];
									$array['phrase_details'][$x][$this->uuid_prefix.'uuid'] = $phrase_uuid;
									$array['phrase_details'][$x]['domain_uuid'] = $_SESSION['domain_uuid'];
									$x++;
								}
							}

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

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

								//execute delete
									$database = new database;
									$database->app_name = $this->app_name;
									$database->app_uuid = $this->app_uuid;
									$database->delete($array);
									unset($array);

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

								//clear the cache
									$phrase_languages = array_unique($phrase_languages);
									$cache = new cache;
									foreach ($phrase_languages as $phrase_language) {
										$cache->delete("languages:".$phrase_language);
									}

								//clear the destinations session array
									if (isset($_SESSION['destinations']['array'])) {
										unset($_SESSION['destinations']['array']);
									}

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

		public function delete_details($records) {
			//assign private variables
				$this->permission_prefix = 'phrase_';
				$this->list_page = 'phrase_edit.php?id='.$this->phrase_uuid;
				$this->table = 'phrase_details';
				$this->uuid_prefix = 'phrase_detail_';

			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;
					}

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

						//filter out unchecked phrases, 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]['phrase_uuid'] = $this->phrase_uuid;
									$array[$this->table][$x]['domain_uuid'] = $_SESSION['domain_uuid'];
								}
							}

						//get phrase languages
							if (!empty($array) && is_array($array) && @sizeof($array) != 0) {
								$sql = "select phrase_language as lang from v_phrases ";
								$sql .= "where domain_uuid = :domain_uuid ";
								$sql .= "and phrase_uuid = :phrase_uuid ";
								$parameters['domain_uuid'] = $_SESSION['domain_uuid'];
								$parameters['phrase_uuid'] = $this->phrase_uuid;
								$database = new database;
								$phrase_language = $database->select($sql, $parameters, 'column');
								unset($sql, $parameters, $rows, $row);
							}

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

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

								//execute delete
									$database = new database;
									$database->app_name = $this->app_name;
									$database->app_uuid = $this->app_uuid;
									$database->delete($array);
									unset($array);

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

								//clear the cache
									if ($phrase_language != '') {
										$cache = new cache;
										$cache->delete("languages:".$phrase_language);
									}

							}
							unset($records, $phrase_language);
					}
			}
		}

		/**
		 * toggle records
		 */
		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 and language
							foreach ($records as $x => $record) {
								if (!empty($record['checked']) && $record['checked'] == 'true' && is_uuid($record['uuid'])) {
									$uuids[] = "'".$record['uuid']."'";
								}
							}
							if (is_array($uuids) && @sizeof($uuids) != 0) {
								$sql = "select ".$this->uuid_prefix."uuid as uuid, ".$this->toggle_field." as toggle, phrase_language as lang from v_".$this->table." ";
								$sql .= "where domain_uuid = :domain_uuid ";
								$sql .= "and ".$this->uuid_prefix."uuid in (".implode(', ', $uuids).") ";
								$parameters['domain_uuid'] = $_SESSION['domain_uuid'];
								$database = new database;
								$rows = $database->select($sql, $parameters, 'all');
								if (is_array($rows) && @sizeof($rows) != 0) {
									foreach ($rows as $row) {
										$states[$row['uuid']] = $row['toggle'];
										$phrase_languages[] = $row['lang'];
									}
								}
								unset($sql, $parameters, $rows, $row);
							}

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

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

								//save the array
									$database = new database;
									$database->app_name = $this->app_name;
									$database->app_uuid = $this->app_uuid;
									$database->save($array);
									unset($array);

								//clear the cache
									if (!empty($phrase_languages) && is_array($phrase_languages) && @sizeof($phrase_languages) != 0) {
										$phrase_languages = array_unique($phrase_languages);
										$cache = new cache;
										foreach ($phrase_languages as $phrase_language) {
											$cache->delete("languages:".$phrase_language);
										}
									}

								//clear the destinations session array
									if (isset($_SESSION['destinations']['array'])) {
										unset($_SESSION['destinations']['array']);
									}

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

			}
		}

		/**
		 * copy records
		 */
		public function copy($records) {
			if (permission_exists($this->permission_prefix.'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->list_page);
						exit;
					}

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

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

						//create insert 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->uuid_prefix."uuid in (".implode(', ', $uuids).") ";
									$parameters['domain_uuid'] = $_SESSION['domain_uuid'];
									$database = new database;
									$rows = $database->select($sql, $parameters, 'all');
									if (is_array($rows) && @sizeof($rows) != 0) {
										$y = 0;
										foreach ($rows as $x => $row) {
											$primary_uuid = uuid();

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

											//overwrite
												$array[$this->table][$x][$this->uuid_prefix.'uuid'] = $primary_uuid;
												$array[$this->table][$x]['phrase_description'] = trim($row['phrase_description'].' ('.$text['label-copy'].')');

											//details sub table
												$sql_2 = "select * from v_phrase_details where phrase_uuid = :phrase_uuid";
												$parameters_2['phrase_uuid'] = $row['phrase_uuid'];
												$database = new database;
												$rows_2 = $database->select($sql_2, $parameters_2, 'all');
												if (is_array($rows_2) && @sizeof($rows_2) != 0) {
													foreach ($rows_2 as $row_2) {

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

														//overwrite
															$array['phrase_details'][$y]['phrase_detail_uuid'] = uuid();
															$array['phrase_details'][$y]['phrase_uuid'] = $primary_uuid;

														//increment
															$y++;

													}
												}
												unset($sql_2, $parameters_2, $rows_2, $row_2);

											//create array of languages
												if (!empty($row['phrase_languages'])) {
													$phrase_languages[] = $row['phrase_languages'];
												}
										}
									}
									unset($sql, $parameters, $rows, $row);
							}

						//save the changes and set the message
							if (is_array($array) && @sizeof($array) != 0) {

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

								//save the array
									$database = new database;
									$database->app_name = $this->app_name;
									$database->app_uuid = $this->app_uuid;
									$database->save($array);
									unset($array);

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

								//clear the cache
									if (!empty($phrase_languages) && is_array($phrase_languages) && @sizeof($phrase_languages) != 0) {
										$phrase_languages = array_unique($phrase_languages);
										$cache = new cache;
										foreach ($phrase_languages as $phrase_language) {
											$cache->delete("languages:".$phrase_language);
										}
									}

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

							}
							unset($records);
					}

			}
		} //method

		/**
		 * Returns a path and filename of the recording_uuid provided from the database.
		 * If the recording is a base64 encoded file the file and path may be empty.
		 * @param database $database Database object
		 * @param string $recording_uuid Recording UUID
		 * @return string recording path and filename or an empty string when not found or base64
		 */
		public static function get_recording_filename(database $database, string $recording_uuid): string {
			$sql = "select recording_filename from v_recordings";
			$sql .= " where recording_uuid = :recording_uuid";
			$parameters = [];
			$parameters['recording_uuid'] = $recording_uuid;
			$result = $database->select($sql, $parameters, 'column');
			if ($result !== false) {
				return $result;
			}
			return "";
		}

		/**
		 * Returns an associative array of recordings with the uuid as key and recording filename as value.
		 * When the recording is a base64 encoded recording, the filename returned is the filename only with no path.
		 * @param settings $settings Settings object
		 * @param int $limit (Optional) Limit the number of results returned
		 * @return array
		 */
		public static function get_all_domain_recordings(settings $settings, int $limit = 0): array {
			//set defaults
			$recordings = [];
			$parameters = [];
			//get the database object from the settings object
			$database = $settings->database();
			//get the domain name using the domain_uuid in the database object
			$domain_uuid = $settings->domain_uuid();
			$domain_name = $database->select("SELECT domain_name from v_domains where domain_uuid = :domain_uuid", ['domain_uuid' => $domain_uuid], 'column');
			//get the recording directory
			$recordings_dir = $settings->get('switch', 'recordings', '/var/lib/freeswitch/recordings') . DIRECTORY_SEPARATOR . $domain_name;
			//build initial sql that ignores the domain_uuid
			$sql = "SELECT recording_uuid, recording_filename, recording_base64 IS NOT NULL AS has_base64_recording FROM v_recordings";
			//add domain_uuid to sql when available
			if (!empty($domain_name) && is_uuid($domain_uuid)) {
				$sql .= " where domain_uuid = :domain_uuid";
				$parameters['domain_uuid'] = $domain_uuid;
			}
			//add limit to sql if needed
			if (!empty($limit)) {
				$sql .= " limit $limit";
			}
			//get the result
			$rows = $database->select($sql, $parameters);
			//iterate over all rows returned to remap them to uuid => filename
			if (!empty($rows)) {
				//set the path and filename for each of the uuids
				foreach($rows as $row) {
					if ($row['has_base64_recording']) {
						$recordings[$row['recording_uuid']] = '${lua streamfile.lua ' . basename($row['recording_filename']) .'}';
					} else {
						$recordings[$row['recording_uuid']] = $recordings_dir . DIRECTORY_SEPARATOR . $row['recording_filename'];
					}
				}
			}
			//return recordings or empty array
			return $recordings;
		}
	}
}