function-call-exception.php
184 lines
| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Specialized exception for function calling errors. |
| 5 | * |
| 6 | * Provides detailed context about what went wrong during |
| 7 | * function calling operations. |
| 8 | */ |
| 9 | class Meow_MWAI_FunctionCallException extends Exception { |
| 10 | private array $context = []; |
| 11 | |
| 12 | /** |
| 13 | * Error codes for different scenarios |
| 14 | */ |
| 15 | public const ERROR_NO_TOOL_CALL_FOUND = 'no_tool_call_found'; |
| 16 | public const ERROR_INVALID_RESPONSE_ID = 'invalid_response_id'; |
| 17 | public const ERROR_FUNCTION_EXECUTION_FAILED = 'function_execution_failed'; |
| 18 | public const ERROR_MISSING_FUNCTION_HANDLER = 'missing_function_handler'; |
| 19 | public const ERROR_INVALID_ARGUMENTS = 'invalid_arguments'; |
| 20 | public const ERROR_LOOP_DETECTED = 'loop_detected'; |
| 21 | |
| 22 | public function __construct( |
| 23 | string $message, |
| 24 | string $errorCode, |
| 25 | array $context = [], |
| 26 | ?Throwable $previous = null |
| 27 | ) { |
| 28 | $this->context = $context; |
| 29 | $detailedMessage = $this->build_detailed_message( $message, $errorCode, $context ); |
| 30 | parent::__construct( $detailedMessage, 0, $previous ); |
| 31 | } |
| 32 | |
| 33 | /** |
| 34 | * Build a detailed error message with context |
| 35 | */ |
| 36 | private function build_detailed_message( string $message, string $errorCode, array $context ): string { |
| 37 | $details = [$message]; |
| 38 | |
| 39 | switch ( $errorCode ) { |
| 40 | case self::ERROR_NO_TOOL_CALL_FOUND: |
| 41 | $callId = $context['call_id'] ?? 'unknown'; |
| 42 | $details[] = sprintf( |
| 43 | 'Function call mismatch: Expected call_id "%s" not found in conversation.', |
| 44 | $callId |
| 45 | ); |
| 46 | $details[] = 'Ensure previous_response_id is set and function_call is echoed before function_call_output.'; |
| 47 | if ( !empty( $context['available_calls'] ) ) { |
| 48 | $details[] = 'Available call IDs: ' . implode( ', ', $context['available_calls'] ); |
| 49 | } |
| 50 | break; |
| 51 | |
| 52 | case self::ERROR_INVALID_RESPONSE_ID: |
| 53 | $responseId = $context['response_id'] ?? 'unknown'; |
| 54 | $expectedFormat = $context['expected_format'] ?? 'unknown'; |
| 55 | $details[] = sprintf( |
| 56 | 'Invalid response ID format: "%s" does not match expected format "%s".', |
| 57 | $responseId, |
| 58 | $expectedFormat |
| 59 | ); |
| 60 | if ( !empty( $context['api_type'] ) ) { |
| 61 | $details[] = sprintf( |
| 62 | 'The %s requires response IDs starting with "%s".', |
| 63 | $context['api_type'], |
| 64 | $context['expected_prefix'] ?? '' |
| 65 | ); |
| 66 | } |
| 67 | break; |
| 68 | |
| 69 | case self::ERROR_FUNCTION_EXECUTION_FAILED: |
| 70 | $functionName = $context['function_name'] ?? 'unknown'; |
| 71 | $details[] = sprintf( 'Function "%s" execution failed.', $functionName ); |
| 72 | if ( !empty( $context['error_details'] ) ) { |
| 73 | $details[] = 'Error details: ' . $context['error_details']; |
| 74 | } |
| 75 | break; |
| 76 | |
| 77 | case self::ERROR_MISSING_FUNCTION_HANDLER: |
| 78 | $functionName = $context['function_name'] ?? 'unknown'; |
| 79 | $details[] = sprintf( |
| 80 | 'No handler registered for function "%s".', |
| 81 | $functionName |
| 82 | ); |
| 83 | $details[] = 'Ensure the function is registered using add_filter("mwai_functions_list", ...).'; |
| 84 | break; |
| 85 | |
| 86 | case self::ERROR_INVALID_ARGUMENTS: |
| 87 | $functionName = $context['function_name'] ?? 'unknown'; |
| 88 | $details[] = sprintf( |
| 89 | 'Invalid arguments provided for function "%s".', |
| 90 | $functionName |
| 91 | ); |
| 92 | if ( !empty( $context['validation_errors'] ) ) { |
| 93 | $details[] = 'Validation errors: ' . implode( ', ', $context['validation_errors'] ); |
| 94 | } |
| 95 | break; |
| 96 | |
| 97 | case self::ERROR_LOOP_DETECTED: |
| 98 | $maxDepth = $context['max_depth'] ?? 5; |
| 99 | $details[] = sprintf( |
| 100 | 'Function call loop detected after %d iterations.', |
| 101 | $maxDepth |
| 102 | ); |
| 103 | $details[] = 'The AI model is repeatedly calling functions without reaching a conclusion.'; |
| 104 | if ( !empty( $context['call_stack'] ) ) { |
| 105 | $details[] = 'Call stack: ' . implode( ' → ', $context['call_stack'] ); |
| 106 | } |
| 107 | break; |
| 108 | } |
| 109 | |
| 110 | // Add debug information if available |
| 111 | if ( !empty( $context['debug_info'] ) ) { |
| 112 | $details[] = 'Debug info: ' . json_encode( $context['debug_info'] ); |
| 113 | } |
| 114 | |
| 115 | return implode( ' ', $details ); |
| 116 | } |
| 117 | |
| 118 | /** |
| 119 | * Get the error context |
| 120 | */ |
| 121 | public function get_context(): array { |
| 122 | return $this->context; |
| 123 | } |
| 124 | |
| 125 | /** |
| 126 | * Create specific error instances |
| 127 | */ |
| 128 | public static function no_tool_call_found( string $callId, array $availableCalls = [] ): self { |
| 129 | return new self( |
| 130 | 'No tool call found for function call output.', |
| 131 | self::ERROR_NO_TOOL_CALL_FOUND, |
| 132 | [ |
| 133 | 'call_id' => $callId, |
| 134 | 'available_calls' => $availableCalls |
| 135 | ] |
| 136 | ); |
| 137 | } |
| 138 | |
| 139 | public static function invalid_response_id( string $responseId, string $apiType, string $expectedPrefix ): self { |
| 140 | return new self( |
| 141 | 'Invalid response ID format.', |
| 142 | self::ERROR_INVALID_RESPONSE_ID, |
| 143 | [ |
| 144 | 'response_id' => $responseId, |
| 145 | 'api_type' => $apiType, |
| 146 | 'expected_format' => $expectedPrefix . '...', |
| 147 | 'expected_prefix' => $expectedPrefix |
| 148 | ] |
| 149 | ); |
| 150 | } |
| 151 | |
| 152 | public static function function_execution_failed( string $functionName, string $errorDetails ): self { |
| 153 | return new self( |
| 154 | 'Function execution failed.', |
| 155 | self::ERROR_FUNCTION_EXECUTION_FAILED, |
| 156 | [ |
| 157 | 'function_name' => $functionName, |
| 158 | 'error_details' => $errorDetails |
| 159 | ] |
| 160 | ); |
| 161 | } |
| 162 | |
| 163 | public static function missing_function_handler( string $functionName ): self { |
| 164 | return new self( |
| 165 | 'Missing function handler.', |
| 166 | self::ERROR_MISSING_FUNCTION_HANDLER, |
| 167 | [ |
| 168 | 'function_name' => $functionName |
| 169 | ] |
| 170 | ); |
| 171 | } |
| 172 | |
| 173 | public static function loop_detected( int $maxDepth, array $callStack = [] ): self { |
| 174 | return new self( |
| 175 | 'Function call loop detected.', |
| 176 | self::ERROR_LOOP_DETECTED, |
| 177 | [ |
| 178 | 'max_depth' => $maxDepth, |
| 179 | 'call_stack' => $callStack |
| 180 | ] |
| 181 | ); |
| 182 | } |
| 183 | } |
| 184 |