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core.php
587 lines
| 1 | <?php |
| 2 | |
| 3 | class Meow_MWAI_Engines_Core { |
| 4 | protected $core = null; |
| 5 | public $env = null; |
| 6 | public $envId = null; |
| 7 | public $envType = null; |
| 8 | |
| 9 | // Streaming |
| 10 | protected $streamCallback = null; |
| 11 | protected $streamTemporaryBuffer = ''; |
| 12 | protected $streamBuffer = ''; |
| 13 | protected $streamHeaders = []; |
| 14 | protected $streamContent = ''; |
| 15 | |
| 16 | // Debug mode for stream events |
| 17 | protected $currentDebugMode = false; |
| 18 | protected $currentQuery = null; |
| 19 | protected $emittedFunctionResults = []; |
| 20 | |
| 21 | public function __construct( $core, $env ) { |
| 22 | $this->core = $core; |
| 23 | $this->env = $env; |
| 24 | $this->envId = isset( $env['id'] ) ? $env['id'] : null; |
| 25 | $this->envType = isset( $env['type'] ) ? $env['type'] : null; |
| 26 | } |
| 27 | |
| 28 | /** |
| 29 | * Reset all request-specific state variables. |
| 30 | * This should be called at the start of each new request to prevent |
| 31 | * state leakage between requests. |
| 32 | */ |
| 33 | protected function reset_request_state() { |
| 34 | // Reset streaming state |
| 35 | $this->streamCallback = null; |
| 36 | $this->streamTemporaryBuffer = ''; |
| 37 | $this->streamBuffer = ''; |
| 38 | $this->streamHeaders = []; |
| 39 | $this->streamContent = ''; |
| 40 | |
| 41 | // Reset debug/event state |
| 42 | $this->currentDebugMode = false; |
| 43 | $this->currentQuery = null; |
| 44 | $this->emittedFunctionResults = []; |
| 45 | } |
| 46 | |
| 47 | public function run( $query, $streamCallback = null, $maxDepth = 5 ) { |
| 48 | |
| 49 | // Apply filter to allow overriding maxDepth (only on first call) |
| 50 | if ( !isset( $query->_maxDepthConfigured ) ) { |
| 51 | $maxDepth = apply_filters( 'mwai_function_call_max_depth', $maxDepth, $query ); |
| 52 | $query->_maxDepthConfigured = $maxDepth; |
| 53 | } |
| 54 | |
| 55 | // Check if queries debug is enabled |
| 56 | $queries_debug = $this->core->get_option( 'queries_debug_mode' ); |
| 57 | |
| 58 | // Log query start if debug is enabled |
| 59 | if ( $queries_debug ) { |
| 60 | // We'll let the individual engines log the actual HTTP requests/responses |
| 61 | // Just log a simple start marker here |
| 62 | error_log( '[AI Engine Queries Debug] ========================================' ); |
| 63 | $query_type = get_class( $query ); |
| 64 | error_log( '[AI Engine Queries Debug] Starting ' . $query_type . ' to ' . ( $query->model ?? 'unknown model' ) ); |
| 65 | } |
| 66 | |
| 67 | // Check if the query is allowed. |
| 68 | $limits = $this->core->get_option( 'limits' ); |
| 69 | $allowed = apply_filters( 'mwai_ai_allowed', true, $query, $limits ); |
| 70 | if ( $allowed !== true ) { |
| 71 | $message = is_string( $allowed ) ? $allowed : 'Unauthorized query.'; |
| 72 | throw new Exception( $message ); |
| 73 | } |
| 74 | |
| 75 | // Important as it makes sure everything is consolidated in the query and the engine. |
| 76 | $this->final_checks( $query ); |
| 77 | |
| 78 | // Run the query |
| 79 | $reply = null; |
| 80 | if ( $query instanceof Meow_MWAI_Query_Text || $query instanceof Meow_MWAI_Query_Feedback ) { |
| 81 | $reply = $this->run_completion_query( $query, $streamCallback ); |
| 82 | } |
| 83 | else if ( $query instanceof Meow_MWAI_Query_Assistant || $query instanceof Meow_MWAI_Query_AssistFeedback ) { |
| 84 | $reply = $this->run_assistant_query( $query, $streamCallback ); |
| 85 | if ( $reply === null ) { |
| 86 | throw new Exception( 'Assistants are not supported in this version of AI Engine.' ); |
| 87 | } |
| 88 | } |
| 89 | else if ( $query instanceof Meow_MWAI_Query_Embed ) { |
| 90 | $reply = $this->run_embedding_query( $query ); |
| 91 | } |
| 92 | else if ( $query instanceof Meow_MWAI_Query_EditImage ) { |
| 93 | $reply = $this->run_editimage_query( $query ); |
| 94 | } |
| 95 | else if ( $query instanceof Meow_MWAI_Query_Image ) { |
| 96 | $reply = $this->run_image_query( $query ); |
| 97 | } |
| 98 | else if ( $query instanceof Meow_MWAI_Query_Transcribe ) { |
| 99 | $reply = $this->run_transcribe_query( $query ); |
| 100 | } |
| 101 | else { |
| 102 | throw new Exception( 'Unknown query type.' ); |
| 103 | } |
| 104 | |
| 105 | // Allow to modify the reply before it is sent. |
| 106 | $reply = apply_filters( 'mwai_ai_reply', $reply, $query ); |
| 107 | |
| 108 | // Log query completion if debug is enabled |
| 109 | if ( $queries_debug && empty( $reply->needFeedbacks ) ) { |
| 110 | error_log( '[AI Engine Queries Debug] Query completed' ); |
| 111 | error_log( '[AI Engine Queries Debug] ========================================' ); |
| 112 | } |
| 113 | |
| 114 | // Function Call Handling - This is where the magic happens! |
| 115 | // When the AI model requests function calls, we execute them and send results back |
| 116 | if ( !empty( $reply->needFeedbacks ) ) { |
| 117 | |
| 118 | // Debug: Log how many needFeedbacks we have |
| 119 | if ( $queries_debug ) { |
| 120 | error_log( '[AI Engine Queries Debug] Core: Processing ' . count( $reply->needFeedbacks ) . ' needFeedbacks' ); |
| 121 | foreach ( $reply->needFeedbacks as $idx => $feedback ) { |
| 122 | error_log( '[AI Engine Queries Debug] Core: needFeedback[' . $idx . ']: name=' . $feedback['name'] . ', toolId=' . ( $feedback['toolId'] ?? 'none' ) ); |
| 123 | } |
| 124 | } |
| 125 | |
| 126 | |
| 127 | // Prevent infinite loops - each function call reduces maxDepth by 1 |
| 128 | if ( $maxDepth <= 0 ) { |
| 129 | // Build call stack for better debugging |
| 130 | $callStack = []; |
| 131 | foreach ( $reply->needFeedbacks as $feedback ) { |
| 132 | $callStack[] = $feedback['name'] ?? 'unknown'; |
| 133 | } |
| 134 | |
| 135 | throw Meow_MWAI_FunctionCallException::loop_detected( |
| 136 | $query->_maxDepthConfigured ?? 5, // Use configured max depth |
| 137 | $callStack |
| 138 | ); |
| 139 | } |
| 140 | |
| 141 | // Create a feedback query if we're not already in one |
| 142 | // This wraps the original query with function execution results |
| 143 | if ( !( $query instanceof Meow_MWAI_Query_AssistFeedback ) && !( $query instanceof Meow_MWAI_Query_Feedback ) ) { |
| 144 | $queryClass = $query instanceof Meow_MWAI_Query_Assistant ? |
| 145 | Meow_MWAI_Query_AssistFeedback::class : Meow_MWAI_Query_Feedback::class; |
| 146 | // Note: $reply->query contains the original query that produced this reply |
| 147 | $query = new $queryClass( $reply, $reply->query ); |
| 148 | } |
| 149 | |
| 150 | // Validate that all function calls have proper function definitions |
| 151 | foreach ( $reply->needFeedbacks as $needFeedback ) { |
| 152 | if ( !isset( $needFeedback['function'] ) ) { |
| 153 | $functionName = $needFeedback['name'] ?? 'unknown'; |
| 154 | $availableFunctions = array_map( function( $f ) { return $f->name; }, $query->functions ); |
| 155 | |
| 156 | throw new Exception( sprintf( |
| 157 | "Function '%s' not found in query functions. Available functions: %s", |
| 158 | $functionName, |
| 159 | implode( ', ', $availableFunctions ) |
| 160 | ) ); |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | // Group function calls by their source message to maintain proper context |
| 165 | // This ensures related function calls are processed together |
| 166 | $feedback_blocks = []; |
| 167 | foreach ( $reply->needFeedbacks as $needFeedback ) { |
| 168 | $rawMessageKey = md5( serialize( $needFeedback['rawMessage'] ) ); |
| 169 | |
| 170 | // Initialize the feedback block for this rawMessage if it hasn't been initialized yet |
| 171 | if ( !isset( $feedback_blocks[$rawMessageKey] ) ) { |
| 172 | $feedback_blocks[$rawMessageKey] = [ |
| 173 | 'rawMessage' => $needFeedback['rawMessage'], |
| 174 | 'feedbacks' => [] |
| 175 | ]; |
| 176 | } |
| 177 | |
| 178 | // Get the value related to this feedback (usually, a function call) |
| 179 | $value = apply_filters( 'mwai_ai_feedback', null, $needFeedback, $reply ); |
| 180 | |
| 181 | if ( $value === null ) { |
| 182 | // Check if the function handler exists |
| 183 | if ( !has_filter( 'mwai_ai_feedback' ) ) { |
| 184 | Meow_MWAI_Logging::error( |
| 185 | Meow_MWAI_FunctionCallException::missing_function_handler( |
| 186 | $needFeedback['name'] |
| 187 | )->getMessage() |
| 188 | ); |
| 189 | } |
| 190 | else { |
| 191 | Meow_MWAI_Logging::warn( "The returned value for '{$needFeedback['name']}' was null." ); |
| 192 | } |
| 193 | $value = '[NO VALUE RETURNED - DO NOT SHOW THIS]'; |
| 194 | } |
| 195 | |
| 196 | // Emit "Got result" event and log for debugging |
| 197 | if ( $this->currentDebugMode ) { |
| 198 | // Format the result preview |
| 199 | $resultPreview = is_array( $value ) ? json_encode( $value ) : (string) $value; |
| 200 | if ( strlen( $resultPreview ) > 100 ) { |
| 201 | $resultPreview = substr( $resultPreview, 0, 100 ) . '...'; |
| 202 | } |
| 203 | |
| 204 | // Log the function result for debugging |
| 205 | Meow_MWAI_Logging::log( "Function '{$needFeedback['name']}' returned: " . $resultPreview ); |
| 206 | |
| 207 | // Emit function result event if we have a callback |
| 208 | if ( !empty( $streamCallback ) ) { |
| 209 | // Load event helper if not already loaded |
| 210 | if ( !class_exists( 'Meow_MWAI_Event' ) ) { |
| 211 | require_once MWAI_PATH . '/classes/event.php'; |
| 212 | } |
| 213 | |
| 214 | $functionName = $needFeedback['name']; |
| 215 | |
| 216 | $event = Meow_MWAI_Event::function_result( $functionName ) |
| 217 | ->set_metadata( 'result', $resultPreview ) |
| 218 | ->set_metadata( 'tool_id', $needFeedback['toolId'] ?? null ); |
| 219 | call_user_func( $streamCallback, $event ); |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | // Add the feedback information to the appropriate feedback block |
| 224 | $feedback_blocks[$rawMessageKey]['feedbacks'][] = [ |
| 225 | 'request' => $needFeedback, // TODO: Meow_MWAI_Feedback_Request |
| 226 | 'reply' => [ 'value' => $value ] // TODO: Meow_MWAI_Feedback_Reply |
| 227 | ]; |
| 228 | } |
| 229 | |
| 230 | $query->clear_feedback_blocks(); |
| 231 | foreach ( $feedback_blocks as $feedback_block ) { |
| 232 | $query->add_feedback_block( $feedback_block ); |
| 233 | } |
| 234 | |
| 235 | // Log feedback query if debug is enabled |
| 236 | if ( $queries_debug ) { |
| 237 | error_log( '[AI Engine Queries Debug] Processing feedback query with ' . count( $feedback_blocks ) . ' feedback blocks' ); |
| 238 | } |
| 239 | |
| 240 | // Run the feedback query |
| 241 | $reply = $this->run( $query, $streamCallback, $maxDepth - 1 ); |
| 242 | } |
| 243 | |
| 244 | return $reply; |
| 245 | } |
| 246 | |
| 247 | public function retrieve_model_info( $model ) { |
| 248 | $models = $this->get_models(); |
| 249 | foreach ( $models as $currentModel ) { |
| 250 | if ( $currentModel['model'] === $model ) { |
| 251 | return $currentModel; |
| 252 | } |
| 253 | } |
| 254 | return false; |
| 255 | } |
| 256 | |
| 257 | public function final_checks( Meow_MWAI_Query_Base $query ) { |
| 258 | $query->final_checks(); |
| 259 | //$found = false; |
| 260 | |
| 261 | // Check if the model is available, except if it's an assistant |
| 262 | if ( !( $query instanceof Meow_MWAI_Query_Assistant ) ) { |
| 263 | // TODO: Avoid checking on the finetuned models for now. |
| 264 | if ( substr( $query->model, 0, 3 ) === 'ft:' ) { |
| 265 | return; |
| 266 | } |
| 267 | $model_info = $this->retrieve_model_info( $query->model ); |
| 268 | if ( $model_info === false ) { |
| 269 | throw new Exception( "AI Engine: The model '{$query->model}' is not available." ); |
| 270 | } |
| 271 | if ( isset( $model_info['mode'] ) ) { |
| 272 | $query->mode = $model_info['mode']; |
| 273 | } |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | // Streamline the messages: |
| 278 | // - Concatenate consecutive model messages into a single message for the model role |
| 279 | // - Make sure the first message is a user message |
| 280 | // - Make sure the last message is a user message |
| 281 | protected function streamline_messages( $messages, $systemRole = 'assistant', $messageType = 'content' ) { |
| 282 | $processedMessages = []; |
| 283 | $lastRole = ''; |
| 284 | $concatenatedText = ''; |
| 285 | |
| 286 | // Determine the way to access message content based on messageType |
| 287 | $getContent = function ( $message ) use ( $messageType ) { |
| 288 | if ( $messageType == 'parts' ) { |
| 289 | return $message['parts'][0]['text']; |
| 290 | } |
| 291 | else { // Default to 'content' |
| 292 | return $message['content']; |
| 293 | } |
| 294 | }; |
| 295 | |
| 296 | // Set content to a message depending on the messageType |
| 297 | $setContent = function ( &$message, $content ) use ( $messageType ) { |
| 298 | if ( $messageType == 'parts' ) { |
| 299 | $message['parts'] = [['text' => $content]]; |
| 300 | } |
| 301 | else { // Default to 'content' |
| 302 | $message['content'] = $content; |
| 303 | } |
| 304 | }; |
| 305 | |
| 306 | // Concatenate consecutive model messages into a single message for the model role |
| 307 | foreach ( $messages as $message ) { |
| 308 | if ( $message['role'] == $systemRole ) { |
| 309 | if ( $lastRole == $systemRole ) { |
| 310 | $concatenatedText .= "\n" . $getContent( $message ); |
| 311 | } |
| 312 | else { |
| 313 | if ( $concatenatedText !== '' ) { |
| 314 | $newMessage = [ 'role' => $systemRole ]; |
| 315 | $setContent( $newMessage, $concatenatedText ); |
| 316 | $processedMessages[] = $newMessage; |
| 317 | } |
| 318 | $concatenatedText = $getContent( $message ); |
| 319 | } |
| 320 | } |
| 321 | else { |
| 322 | if ( $lastRole == $systemRole ) { |
| 323 | $newMessage = [ 'role' => $systemRole ]; |
| 324 | $setContent( $newMessage, $concatenatedText ); |
| 325 | $processedMessages[] = $newMessage; |
| 326 | $concatenatedText = ''; |
| 327 | } |
| 328 | $processedMessages[] = $message; |
| 329 | } |
| 330 | $lastRole = $message['role']; |
| 331 | } |
| 332 | if ( $lastRole == $systemRole && $concatenatedText !== '' ) { |
| 333 | $newMessage = [ 'role' => $systemRole ]; |
| 334 | $setContent( $newMessage, $concatenatedText ); |
| 335 | $processedMessages[] = $newMessage; |
| 336 | } |
| 337 | |
| 338 | // Make sure the last message is a user message, if not, throw an exception |
| 339 | if ( end( $processedMessages )['role'] !== 'user' ) { |
| 340 | throw new Exception( 'The last message must be a user message.' ); |
| 341 | } |
| 342 | |
| 343 | // Make sure the first message is a user message, if not, add an empty user message |
| 344 | if ( $processedMessages[0]['role'] !== 'user' ) { |
| 345 | $newMessage = [ 'role' => 'user' ]; |
| 346 | $setContent( $newMessage, '' ); |
| 347 | array_unshift( $processedMessages, $newMessage ); |
| 348 | } |
| 349 | |
| 350 | return $processedMessages; |
| 351 | } |
| 352 | |
| 353 | // Check for a JSON-formatted error in the data, and throw an exception if it's the case. |
| 354 | public function stream_error_check( $data ) { |
| 355 | if ( strpos( $data, 'error' ) === false ) { |
| 356 | return; |
| 357 | } |
| 358 | |
| 359 | $data = trim( $data ); |
| 360 | $jsonPart = $data; |
| 361 | if ( strpos( $jsonPart, 'data:' ) === 0 ) { |
| 362 | $jsonPart = trim( substr( $jsonPart, strlen( 'data:' ) ) ); |
| 363 | } |
| 364 | |
| 365 | $json = json_decode( $jsonPart, true ); |
| 366 | if ( json_last_error() !== JSON_ERROR_NONE ) { |
| 367 | return; // not valid JSON, nothing to do |
| 368 | } |
| 369 | // 1. OpenAI style: { error: {...} } |
| 370 | $error = null; |
| 371 | if ( isset( $json['error'] ) ) { |
| 372 | $error = $json['error']; |
| 373 | } |
| 374 | // 2. Google style: [ { error: {...} } ] |
| 375 | else if ( is_array( $json ) ) { |
| 376 | foreach ( $json as $item ) { |
| 377 | if ( isset( $item['error'] ) ) { |
| 378 | $error = $item['error']; |
| 379 | break; |
| 380 | } |
| 381 | } |
| 382 | } |
| 383 | // 3. Some APIs return { type: "error", message: ... } |
| 384 | else if ( isset( $json['type'] ) && $json['type'] === 'error' ) { |
| 385 | $error = $json; |
| 386 | } |
| 387 | |
| 388 | if ( is_null( $error ) ) { |
| 389 | return; |
| 390 | } |
| 391 | |
| 392 | $message = $error['message'] ?? ( is_string( $error ) ? $error : null ); |
| 393 | $code = $error['code'] ?? null; |
| 394 | // Google uses "status" instead of "type" – accept both |
| 395 | $type = $error['type'] ?? ( $error['status'] ?? null ); |
| 396 | if ( is_null( $message ) ) { |
| 397 | throw new Exception( 'Unknown error (stream_error_check).' ); |
| 398 | } |
| 399 | |
| 400 | $errorMessage = "Error: $message"; |
| 401 | if ( !is_null( $code ) ) { |
| 402 | $errorMessage .= " ($code)"; |
| 403 | } |
| 404 | if ( !is_null( $type ) ) { |
| 405 | $errorMessage .= " ($type)"; |
| 406 | } |
| 407 | |
| 408 | throw new Exception( $errorMessage ); |
| 409 | } |
| 410 | |
| 411 | protected function init_debug_mode( $query ) { |
| 412 | // Check if debug mode is enabled in settings |
| 413 | $this->currentDebugMode = $this->core->get_option( 'module_devtools' ) && $this->core->get_option( 'debug_mode' ); |
| 414 | $this->currentQuery = $query; |
| 415 | } |
| 416 | |
| 417 | public function stream_handler( $handle, $args, $url ) { |
| 418 | curl_setopt( $handle, CURLOPT_SSL_VERIFYPEER, false ); |
| 419 | curl_setopt( $handle, CURLOPT_SSL_VERIFYHOST, false ); |
| 420 | |
| 421 | // TODO: This is breaking the response. We need to find a way to handle the headers. |
| 422 | // curl_setopt( $handle, CURLOPT_HEADERFUNCTION, function ( $curl, $header ) { |
| 423 | // $length = strlen( $header ); |
| 424 | // $this->streamHeaders[] = $header; |
| 425 | // $this->stream_header_handler( $header ); |
| 426 | // return $length; |
| 427 | // }); |
| 428 | |
| 429 | curl_setopt( $handle, CURLOPT_WRITEFUNCTION, function ( $curl, $data ) use ( $url ) { |
| 430 | $length = strlen( $data ); |
| 431 | |
| 432 | // Log streaming data if queries debug is enabled |
| 433 | $queries_debug = $this->core->get_option( 'queries_debug_mode' ); |
| 434 | static $logged_url = false; |
| 435 | if ( $queries_debug && !$logged_url ) { |
| 436 | error_log( '[AI Engine Queries Debug] Streaming from: ' . $url ); |
| 437 | $logged_url = true; |
| 438 | } |
| 439 | |
| 440 | // Bufferize the unfinished stream (if it's the case) |
| 441 | $this->streamTemporaryBuffer .= $data; |
| 442 | $this->streamBuffer .= $data; |
| 443 | |
| 444 | // Error Management |
| 445 | $this->stream_error_check( $this->streamBuffer ); |
| 446 | |
| 447 | $lines = explode( "\n", $this->streamTemporaryBuffer ); |
| 448 | if ( substr( $this->streamTemporaryBuffer, -1 ) !== "\n" ) { |
| 449 | $this->streamTemporaryBuffer = array_pop( $lines ); |
| 450 | } |
| 451 | else { |
| 452 | $this->streamTemporaryBuffer = ''; |
| 453 | } |
| 454 | |
| 455 | foreach ( $lines as $line ) { |
| 456 | if ( $line === '' ) { |
| 457 | continue; |
| 458 | } |
| 459 | if ( strpos( $line, 'data:' ) === 0 ) { |
| 460 | $line = trim( substr( $line, 5 ) ); |
| 461 | $json = json_decode( trim( $line ), true ); |
| 462 | |
| 463 | if ( json_last_error() === JSON_ERROR_NONE ) { |
| 464 | // Log individual streaming event if queries debug is enabled |
| 465 | static $event_count = 0; |
| 466 | if ( $queries_debug && $event_count < 10 ) { |
| 467 | // Log only the event type and key data, not the entire response |
| 468 | $event_log = [ |
| 469 | 'type' => $json['type'] ?? 'unknown' |
| 470 | ]; |
| 471 | |
| 472 | // Add specific details based on event type |
| 473 | if ( isset( $json['type'] ) ) { |
| 474 | if ( $json['type'] === 'response.output_item.added' && isset( $json['item'] ) ) { |
| 475 | $event_log['item_type'] = $json['item']['type'] ?? 'unknown'; |
| 476 | $event_log['name'] = $json['item']['name'] ?? null; |
| 477 | $event_log['call_id'] = $json['item']['call_id'] ?? null; |
| 478 | } |
| 479 | elseif ( strpos( $json['type'], 'response.function_call' ) === 0 ) { |
| 480 | $event_log['call_id'] = $json['call_id'] ?? $json['item_id'] ?? null; |
| 481 | } |
| 482 | elseif ( $json['type'] === 'response.output_item.done' && isset( $json['item'] ) ) { |
| 483 | $event_log['item_type'] = $json['item']['type'] ?? 'unknown'; |
| 484 | if ( isset( $json['item']['call_id'] ) ) { |
| 485 | $event_log['call_id'] = $json['item']['call_id']; |
| 486 | } |
| 487 | } |
| 488 | } |
| 489 | |
| 490 | error_log( '[AI Engine Queries Debug] Event: ' . json_encode( $event_log ) ); |
| 491 | $event_count++; |
| 492 | } |
| 493 | |
| 494 | $content = $this->stream_data_handler( $json ); |
| 495 | if ( !is_null( $content ) ) { |
| 496 | |
| 497 | // Check if content is an Event object |
| 498 | if ( is_object( $content ) && $content instanceof Meow_MWAI_Event ) { |
| 499 | // For Event objects, pass the object directly to callback |
| 500 | // Don't accumulate in streamContent as it's not regular text |
| 501 | call_user_func( $this->streamCallback, $content ); |
| 502 | } |
| 503 | else { |
| 504 | // For regular string content |
| 505 | |
| 506 | // TO CHECK: Not sure why we need to do this to make sure there is a line return in the chatbot |
| 507 | // If we don't do this, HuggingFace streams "\n" as a token without anything else, and the |
| 508 | // chatbot doesn't display it. |
| 509 | if ( $content === "\n" ) { |
| 510 | $content = " \n"; |
| 511 | } |
| 512 | |
| 513 | $this->streamContent .= $content; |
| 514 | call_user_func( $this->streamCallback, $content ); |
| 515 | } |
| 516 | } |
| 517 | } |
| 518 | else if ( $line !== '[DONE]' && !empty( $line ) ) { |
| 519 | $this->streamTemporaryBuffer .= $line . "\n"; |
| 520 | } |
| 521 | } |
| 522 | } |
| 523 | return $length; |
| 524 | } ); |
| 525 | } |
| 526 | |
| 527 | protected function stream_header_handler( $header ) { |
| 528 | |
| 529 | } |
| 530 | |
| 531 | protected function stream_data_handler( $json ) { |
| 532 | throw new Exception( 'Not implemented.' ); |
| 533 | } |
| 534 | |
| 535 | public function get_models() { |
| 536 | throw new Exception( 'Not implemented.' ); |
| 537 | } |
| 538 | |
| 539 | public function retrieve_models() { |
| 540 | throw new Exception( 'Not implemented.' ); |
| 541 | } |
| 542 | |
| 543 | public function run_completion_query( Meow_MWAI_Query_Base $query, $streamCallback = null ): Meow_MWAI_Reply { |
| 544 | throw new Exception( 'Not implemented.' ); |
| 545 | } |
| 546 | |
| 547 | public function run_assistant_query( Meow_MWAI_Query_Assistant $query, $streamCallback = null ): Meow_MWAI_Reply { |
| 548 | throw new Exception( 'Not implemented, or not supported in this version of AI Engine.' ); |
| 549 | } |
| 550 | |
| 551 | public function run_embedding_query( Meow_MWAI_Query_Base $query ) { |
| 552 | throw new Exception( 'Not implemented.' ); |
| 553 | } |
| 554 | |
| 555 | public function run_image_query( Meow_MWAI_Query_Base $query ) { |
| 556 | throw new Exception( 'Not implemented.' ); |
| 557 | } |
| 558 | |
| 559 | public function run_editimage_query( Meow_MWAI_Query_Base $query ) { |
| 560 | throw new Exception( 'Not implemented.' ); |
| 561 | } |
| 562 | |
| 563 | public function run_transcribe_query( Meow_MWAI_Query_Base $query ) { |
| 564 | throw new Exception( 'Not implemented.' ); |
| 565 | } |
| 566 | |
| 567 | public function get_price( Meow_MWAI_Query_Base $query, Meow_MWAI_Reply $reply ) { |
| 568 | throw new Exception( 'Not implemented.' ); |
| 569 | } |
| 570 | |
| 571 | /** |
| 572 | * Check the connection to the AI service. |
| 573 | * This should be a minimal, cost-free API call to verify credentials and connectivity. |
| 574 | * |
| 575 | * @return array { |
| 576 | * @type bool $success Whether the connection test was successful |
| 577 | * @type string $service The service name (e.g., 'OpenAI', 'Anthropic') |
| 578 | * @type string $message A human-readable message about the test result |
| 579 | * @type array $details Additional service-specific details |
| 580 | * @type string $error Error message if the test failed |
| 581 | * } |
| 582 | */ |
| 583 | public function connection_check() { |
| 584 | throw new Exception( 'Connection check not implemented for this service.' ); |
| 585 | } |
| 586 | } |
| 587 |