Ai elevenlabs io engine (#6932)

* allow settings to load domain and user settings

* ensure the engine is also enabled before attempting to create a new object

* add default values to stop undefined variable warnings

* enforce all models to set and return voices and languages

* enforce all models to set and return languages

* ensure speech_enabled is set by the current session

* create elevenlabs implementation of ai speech

* Update ai_elevenlabs.php

core/ai/resources/classes/ai.php

@@ -27,6 +27,7 @@ if (!class_exists('ai')) {
 		public $audio_path;
 		public $audio_filename;
 		public $audio_format;
+		public $audio_model;
 		public $audio_voice;
 		public $audio_language;
 		public $audio_message;
@@ -65,6 +66,21 @@ if (!class_exists('ai')) {
 			return $object->get_voices();
 		}
 
+		/**
+		 * get_voices - get the list voices
+		 */
+		public function get_models() : array {
+
+			//set the class interface to use the _template suffix
+			$classname = 'ai_'.$this->speech_engine;
+
+			//create the object
+			$object = new $classname($this->settings);
+
+			//return the voices array
+			return $object->get_models();
+		}
+
 		/**
 		 * is_translate_enabled - get whether the engine can do translations
 		 */
@@ -127,6 +143,7 @@ if (!class_exists('ai')) {
 					$object->set_filename($this->audio_filename);
 					$object->set_format($this->audio_format);
 					$object->set_voice($this->audio_voice);
+					$object->set_model($this->audio_model);
 					//$object->set_language($this->audio_language);
 					//$object->set_translate($this->audio_translate);
 					$object->set_message($this->audio_message);

core/ai/resources/classes/ai_elevenlabs.php

@@ -0,0 +1,183 @@
+<?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 <[email protected]>
+  Portions created by the Initial Developer are Copyright (C) 2008-2018
+  the Initial Developer. All Rights Reserved.
+
+  Contributor(s):
+  Mark J Crane <[email protected]>
+  Tim Fry <[email protected]>
+ */
+
+/**
+ * ai_elevenlabs class
+ *
+ */
+class ai_elevenlabs implements ai_speech {
+
+	private $voice;
+	private $path;
+	private $message;
+	private $format;
+	private $filename;
+	private $languages;
+	private $transcribe_key;
+	private $speech_key;
+	private $model;
+
+	public function __construct($settings) {
+		$this->voice = "";
+		$this->path = "";
+		$this->message = "";
+		$this->format = "";
+		$this->filename = "";
+		//build the setting object and get the recording path
+		$this->transcribe_key = $settings->get('ai', 'transcribe_key');
+		$this->speech_key = $settings->get('ai', 'speech_key');
+	}
+
+	public function set_filename(string $audio_filename) {
+		$this->filename = $audio_filename;
+	}
+
+	public function set_format(string $audio_format) {
+		$this->format = $audio_format;
+	}
+
+	public function set_message(string $audio_message) {
+		$this->message = $audio_message;
+	}
+
+	public function set_path(string $audio_path) {
+		$this->path = $audio_path;
+	}
+
+	public function set_voice(string $audio_voice) {
+		$this->voice = $audio_voice;
+	}
+
+	public function speech(): bool {
+		$model_id = $this->model;
+		$ch = curl_init('https://api.elevenlabs.io/v1/text-to-speech/' . $this->voice);
+		$headers = [
+			'Content-Type: application/json',
+			"xi-api-key: $this->speech_key",
+		];
+		$encoded_message = json_encode([
+			'model_id' => $model_id,
+			'text' => $this->message,
+			'voice_settings' => [
+				'similarity_boost' => 1,
+				'stability' => 1,
+			],
+		]);
+		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+		curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
+		curl_setopt($ch, CURLOPT_POST, true);
+		curl_setopt($ch, CURLOPT_POSTFIELDS, $encoded_message);
+		$response = curl_exec($ch);
+		$error = curl_error($ch);
+		$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+		curl_close($ch);
+//		$curl = new curl('https://api.elevenlabs.io/v1/text-to-speech/' . $this->voice);
+//		$response = $curl->set_headers($headers)->post($encoded_message);
+//		$error = $curl->get_error();
+//		$http_code = $curl->get_http_code();
+//		if ($curl->get_http_code() == 200) {
+		if ($http_code == 200) {
+			file_put_contents($this->path . '/' . $this->filename, $response);
+			return true;
+		}
+		return false;
+	}
+
+	public function is_language_enabled(): bool {
+		return false;
+	}
+
+	public function get_languages(): array {
+		return ['english' => 'English'];
+	}
+
+	public function get_voices(): array {
+		$return_value = [];
+		$url = 'https://api.elevenlabs.io/v1/voices';
+		$headers = [
+			'Content-Type: application/json',
+			"xi-api-key: $this->speech_key",
+		];
+		$curl = curl_init();
+		curl_setopt_array($curl, [
+			CURLOPT_URL => $url,
+			CURLOPT_RETURNTRANSFER => true,
+			CURLOPT_ENCODING => "",
+			CURLOPT_MAXREDIRS => 10,
+			CURLOPT_TIMEOUT => 30,
+			CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
+			CURLOPT_CUSTOMREQUEST => "GET",
+		]);
+
+		$response = curl_exec($curl);
+		$error = curl_error($curl);
+
+		curl_close($curl);
+		if (!empty($response)) {
+			$json_array = json_decode($response, true);
+			foreach($json_array['voices'] as $row) {
+				$voice_id = $row['voice_id'];
+				$name = $row['name'];
+				$gender = $row['labels']['gender'] ?? '';
+				$accent = $row['labels']['accent'] ?? '';
+				$use_case = $row['labels']['use case'] ?? '';
+				$recommended_model = $row['high_quality_base_model_ids'][0] ?? '';
+				$return_value[$voice_id] = "$name ($gender, $accent";
+				if (!empty($use_case)) {
+					$return_value[$voice_id] .= ", " . $use_case;
+				}
+				$return_value[$voice_id] .= ")";
+				if (!empty($recommended_model)) {
+					$return_value[$voice_id] .= " - $recommended_model";
+				}
+			}
+		}
+		return $return_value;
+	}
+
+	public function set_language(string $audio_language) {
+		$this->languages = $audio_language;
+	}
+
+	public function set_model(string $model): void {
+		if (array_key_exists($model, $this->get_models())) {
+			$this->model = $model;
+		} else {
+			throw new \Exception('Model does not exist');
+		}
+	}
+
+	public function get_models(): array {
+		return [
+			'eleven_turbo_v1' => 'Eleven Turbo v1',
+			'eleven_turbo_v2' => 'Eleven Turbo v2',
+			'eleven_multilingual_v1' => 'Eleven Multilingual v1',
+			'eleven_multilingual_v2' => 'Eleven Multilingual v2',
+		];
+	}
+}

core/ai/resources/interfaces/ai_speech.php

@@ -3,15 +3,17 @@
 //define the template class
 if (!interface_exists('ai_speech')) {
 	interface ai_speech {
-		public function set_path(string $audio_path);
-		public function set_filename(string $audio_filename);
-		public function set_format(string $audio_format);
-		public function set_voice(string $audio_voice);
-		public function set_message(string $audio_message);
+		public function get_languages() : array;
+		public function get_models(): array;
 		public function get_voices() : array;
 		public function is_language_enabled() : bool;
+		public function set_filename(string $audio_filename);
+		public function set_format(string $audio_format);
 		public function set_language(string $audio_language);
-		public function get_languages() : array;
+		public function set_message(string $audio_message);
+		public function set_model(string $audio_model): void;
+		public function set_path(string $audio_path);
+		public function set_voice(string $audio_voice);
 		public function speech() : bool;
 	}
 }