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Editing: AiClient.php
<?php declare (strict_types=1); namespace WordPress\AiClient; use WordPress\AiClientDependencies\Psr\EventDispatcher\EventDispatcherInterface; use WordPress\AiClientDependencies\Psr\SimpleCache\CacheInterface; use WordPress\AiClient\Builders\PromptBuilder; use WordPress\AiClient\Common\Exception\InvalidArgumentException; use WordPress\AiClient\Common\Exception\RuntimeException; use WordPress\AiClient\Providers\Contracts\ProviderAvailabilityInterface; use WordPress\AiClient\Providers\Contracts\ProviderInterface; use WordPress\AiClient\Providers\Models\Contracts\ModelInterface; use WordPress\AiClient\Providers\Models\DTO\ModelConfig; use WordPress\AiClient\Providers\ProviderRegistry; use WordPress\AiClient\Results\DTO\GenerativeAiResult; /** * Main AI Client class providing both fluent and traditional APIs for AI operations. * * This class serves as the primary entry point for AI operations, offering: * - Fluent API for easy-to-read chained method calls * - Traditional API for array-based configuration (WordPress style) * - Integration with provider registry for model discovery * - Support for three model specification approaches * * All model requirements analysis and capability matching is handled * automatically by the PromptBuilder, which provides intelligent model * discovery based on prompt content and configuration. * * ## Model Specification Approaches * * ### 1. Specific Model Instance * Use a specific ModelInterface instance when you know exactly which model to use: * ```php * $model = $registry->getProvider('openai')->getModel('gpt-4'); * $result = AiClient::generateTextResult('What is PHP?', $model); * ``` * * ### 2. ModelConfig for Auto-Discovery * Use ModelConfig to specify requirements and let the system discover the best model: * ```php * $config = new ModelConfig(); * $config->setTemperature(0.7); * $config->setMaxTokens(150); * * $result = AiClient::generateTextResult('What is PHP?', $config); * ``` * * ### 3. Automatic Discovery (Default) * Pass null or omit the parameter for intelligent model discovery based on prompt content: * ```php * // System analyzes prompt and selects appropriate model automatically * $result = AiClient::generateTextResult('What is PHP?'); * $imageResult = AiClient::generateImageResult('A sunset over mountains'); * ``` * * ## Fluent API Examples * ```php * // Fluent API with automatic model discovery * $result = AiClient::prompt('Generate an image of a sunset') * ->usingTemperature(0.7) * ->generateImageResult(); * * // Fluent API with specific model * $result = AiClient::prompt('What is PHP?') * ->usingModel($specificModel) * ->usingTemperature(0.5) * ->generateTextResult(); * * // Fluent API with model configuration * $result = AiClient::prompt('Explain quantum physics') * ->usingModelConfig($config) * ->generateTextResult(); * ``` * * @since 0.1.0 * * @phpstan-import-type Prompt from PromptBuilder * * phpcs:ignore Generic.Files.LineLength.TooLong */ class AiClient { /** * @var string The version of the AI Client. */ public const VERSION = '1.3.1'; /** * @var ProviderRegistry|null The default provider registry instance. */ private static ?ProviderRegistry $defaultRegistry = null; /** * @var EventDispatcherInterface|null The event dispatcher for prompt lifecycle events. */ private static ?EventDispatcherInterface $eventDispatcher = null; /** * @var CacheInterface|null The PSR-16 cache for storing and retrieving cached data. */ private static ?CacheInterface $cache = null; /** * Gets the default provider registry instance. * * @since 0.1.0 * * @return ProviderRegistry The default provider registry. */ public static function defaultRegistry(): ProviderRegistry { if (self::$defaultRegistry === null) { self::$defaultRegistry = new ProviderRegistry(); } return self::$defaultRegistry; } /** * Sets the event dispatcher for prompt lifecycle events. * * The event dispatcher will be used to dispatch BeforeGenerateResultEvent and * AfterGenerateResultEvent during prompt generation. * * @since 0.4.0 * * @param EventDispatcherInterface|null $dispatcher The event dispatcher, or null to disable. * @return void */ public static function setEventDispatcher(?EventDispatcherInterface $dispatcher): void { self::$eventDispatcher = $dispatcher; } /** * Gets the event dispatcher for prompt lifecycle events. * * @since 0.4.0 * * @return EventDispatcherInterface|null The event dispatcher, or null if not set. */ public static function getEventDispatcher(): ?EventDispatcherInterface { return self::$eventDispatcher; } /** * Sets the PSR-16 cache for storing and retrieving cached data. * * The cache can be used to store AI responses and other data to avoid * redundant API calls and improve performance. * * @since 0.4.0 * * @param CacheInterface|null $cache The PSR-16 cache instance, or null to disable caching. * @return void */ public static function setCache(?CacheInterface $cache): void { self::$cache = $cache; } /** * Gets the PSR-16 cache instance. * * @since 0.4.0 * * @return CacheInterface|null The cache instance, or null if not set. */ public static function getCache(): ?CacheInterface { return self::$cache; } /** * Checks if a provider is configured and available for use. * * Supports multiple input formats for developer convenience: * - ProviderAvailabilityInterface: Direct availability check * - string (provider ID): e.g., AiClient::isConfigured('openai') * - string (class name): e.g., AiClient::isConfigured(OpenAiProvider::class) * * When using string input, this method leverages the ProviderRegistry's centralized * dependency management, ensuring HttpTransporter and authentication are properly * injected into availability instances. * * @since 0.1.0 * @since 0.2.0 Now supports being passed a provider ID or class name. * * @param ProviderAvailabilityInterface|string|class-string<ProviderInterface> $availabilityOrIdOrClassName * The provider availability instance, provider ID, or provider class name. * @return bool True if the provider is configured and available, false otherwise. */ public static function isConfigured($availabilityOrIdOrClassName): bool { // Handle direct ProviderAvailabilityInterface (backward compatibility) if ($availabilityOrIdOrClassName instanceof ProviderAvailabilityInterface) { return $availabilityOrIdOrClassName->isConfigured(); } // Handle string input (provider ID or class name) via registry if (is_string($availabilityOrIdOrClassName)) { return self::defaultRegistry()->isProviderConfigured($availabilityOrIdOrClassName); } throw new \InvalidArgumentException('Parameter must be a ProviderAvailabilityInterface instance, provider ID string, or provider class name. ' . sprintf('Received: %s', is_object($availabilityOrIdOrClassName) ? get_class($availabilityOrIdOrClassName) : gettype($availabilityOrIdOrClassName))); } /** * Creates a new prompt builder for fluent API usage. * * Returns a PromptBuilder instance configured with the specified or default registry. * The traditional API methods in this class delegate to PromptBuilder * for all generation logic. * * @since 0.1.0 * * @param Prompt $prompt Optional initial prompt content. * @param ProviderRegistry|null $registry Optional custom registry. If null, uses default. * @return PromptBuilder The prompt builder instance. */ public static function prompt($prompt = null, ?ProviderRegistry $registry = null): PromptBuilder { return new PromptBuilder($registry ?? self::defaultRegistry(), $prompt, self::$eventDispatcher); } /** * Generates content using a unified API that automatically detects model capabilities. * * When no model is provided, this method delegates to PromptBuilder for intelligent * model discovery based on prompt content and configuration. When a model is provided, * it infers the capability from the model's interfaces and delegates to the capability-based method. * * @since 0.1.0 * * @param Prompt $prompt The prompt content. * @param ModelInterface|ModelConfig $modelOrConfig Specific model to use, or model configuration * for auto-discovery. * @param ProviderRegistry|null $registry Optional custom registry. If null, uses default. * @return GenerativeAiResult The generation result. * * @throws \InvalidArgumentException If the provided model doesn't support any known generation type. * @throws \RuntimeException If no suitable model can be found for the prompt. */ public static function generateResult($prompt, $modelOrConfig, ?ProviderRegistry $registry = null): GenerativeAiResult { self::validateModelOrConfigParameter($modelOrConfig); return self::getConfiguredPromptBuilder($prompt, $modelOrConfig, $registry)->generateResult(); } /** * Generates text using the traditional API approach. * * @since 0.1.0 * * @param Prompt $prompt The prompt content. * @param ModelInterface|ModelConfig|null $modelOrConfig Optional specific model to use, * or model configuration for auto-discovery, * or null for defaults. * @param ProviderRegistry|null $registry Optional custom registry. If null, uses default. * @return GenerativeAiResult The generation result. * * @throws \InvalidArgumentException If the prompt format is invalid. * @throws \RuntimeException If no suitable model is found. */ public static function generateTextResult($prompt, $modelOrConfig = null, ?ProviderRegistry $registry = null): GenerativeAiResult { self::validateModelOrConfigParameter($modelOrConfig); return self::getConfiguredPromptBuilder($prompt, $modelOrConfig, $registry)->generateTextResult(); } /** * Generates an image using the traditional API approach. * * @since 0.1.0 * * @param Prompt $prompt The prompt content. * @param ModelInterface|ModelConfig|null $modelOrConfig Optional specific model to use, * or model configuration for auto-discovery, * or null for defaults. * @param ProviderRegistry|null $registry Optional custom registry. If null, uses default. * @return GenerativeAiResult The generation result. * * @throws \InvalidArgumentException If the prompt format is invalid. * @throws \RuntimeException If no suitable model is found. */ public static function generateImageResult($prompt, $modelOrConfig = null, ?ProviderRegistry $registry = null): GenerativeAiResult { self::validateModelOrConfigParameter($modelOrConfig); return self::getConfiguredPromptBuilder($prompt, $modelOrConfig, $registry)->generateImageResult(); } /** * Converts text to speech using the traditional API approach. * * @since 0.1.0 * * @param Prompt $prompt The prompt content. * @param ModelInterface|ModelConfig|null $modelOrConfig Optional specific model to use, * or model configuration for auto-discovery, * or null for defaults. * @param ProviderRegistry|null $registry Optional custom registry. If null, uses default. * @return GenerativeAiResult The generation result. * * @throws \InvalidArgumentException If the prompt format is invalid. * @throws \RuntimeException If no suitable model is found. */ public static function convertTextToSpeechResult($prompt, $modelOrConfig = null, ?ProviderRegistry $registry = null): GenerativeAiResult { self::validateModelOrConfigParameter($modelOrConfig); return self::getConfiguredPromptBuilder($prompt, $modelOrConfig, $registry)->convertTextToSpeechResult(); } /** * Generates speech using the traditional API approach. * * @since 0.1.0 * * @param Prompt $prompt The prompt content. * @param ModelInterface|ModelConfig|null $modelOrConfig Optional specific model to use, * or model configuration for auto-discovery, * or null for defaults. * @param ProviderRegistry|null $registry Optional custom registry. If null, uses default. * @return GenerativeAiResult The generation result. * * @throws \InvalidArgumentException If the prompt format is invalid. * @throws \RuntimeException If no suitable model is found. */ public static function generateSpeechResult($prompt, $modelOrConfig = null, ?ProviderRegistry $registry = null): GenerativeAiResult { self::validateModelOrConfigParameter($modelOrConfig); return self::getConfiguredPromptBuilder($prompt, $modelOrConfig, $registry)->generateSpeechResult(); } /** * Generates a video using the traditional API approach. * * @since 1.3.0 * * @param Prompt $prompt The prompt content. * @param ModelInterface|ModelConfig|null $modelOrConfig Optional specific model to use, * or model configuration for auto-discovery, * or null for defaults. * @param ProviderRegistry|null $registry Optional custom registry. If null, uses default. * @return GenerativeAiResult The generation result. * * @throws \InvalidArgumentException If the prompt format is invalid. * @throws \RuntimeException If no suitable model is found. */ public static function generateVideoResult($prompt, $modelOrConfig = null, ?ProviderRegistry $registry = null): GenerativeAiResult { self::validateModelOrConfigParameter($modelOrConfig); return self::getConfiguredPromptBuilder($prompt, $modelOrConfig, $registry)->generateVideoResult(); } /** * Creates a new message builder for fluent API usage. * * This method will be implemented once MessageBuilder is available. * MessageBuilder will provide a fluent interface for constructing complex * messages with multiple parts, attachments, and metadata. * * @since 0.1.0 * * @param string|null $text Optional initial message text. * @return object MessageBuilder instance (type will be updated when MessageBuilder is available). * * @throws \RuntimeException When MessageBuilder is not yet available. */ public static function message(?string $text = null) { throw new RuntimeException('MessageBuilder is not yet available. This method depends on builder infrastructure. ' . 'Use direct generation methods (generateTextResult, generateImageResult, etc.) for now.'); } /** * Validates that parameter is ModelInterface, ModelConfig, or null. * * @param mixed $modelOrConfig The parameter to validate. * @return void * @throws \InvalidArgumentException If parameter is invalid type. */ private static function validateModelOrConfigParameter($modelOrConfig): void { if ($modelOrConfig !== null && !$modelOrConfig instanceof ModelInterface && !$modelOrConfig instanceof ModelConfig) { throw new InvalidArgumentException('Parameter must be a ModelInterface instance (specific model), ' . 'ModelConfig instance (for auto-discovery), or null (default auto-discovery). ' . sprintf('Received: %s', is_object($modelOrConfig) ? get_class($modelOrConfig) : gettype($modelOrConfig))); } } /** * Configures PromptBuilder based on model/config parameter type. * * @param Prompt $prompt The prompt content. * @param ModelInterface|ModelConfig|null $modelOrConfig The model or config parameter. * @param ProviderRegistry|null $registry Optional custom registry to use. * @return PromptBuilder Configured prompt builder. */ private static function getConfiguredPromptBuilder($prompt, $modelOrConfig, ?ProviderRegistry $registry = null): PromptBuilder { $builder = self::prompt($prompt, $registry); if ($modelOrConfig instanceof ModelInterface) { $builder->usingModel($modelOrConfig); } elseif ($modelOrConfig instanceof ModelConfig) { $builder->usingModelConfig($modelOrConfig); } // null case: use default model discovery return $builder; } }
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