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<?php |
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/** |
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* DelegatedProvider — adapts a foreign provider object to our interface. |
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* |
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* Used for the Mail Mint bridge: when the site opts into Mail Mint's AI |
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* connection, Mail Mint hands back its own adapter and we forward calls to it. |
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* The API key never crosses the plugin boundary — only the call does. |
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* |
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* @package WPFunnels\AI |
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* @since 3.13.0 |
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*/ |
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|
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namespace WPFunnels\AI\Providers; |
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|
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defined( 'ABSPATH' ) || exit; |
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|
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/** |
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* Class DelegatedProvider |
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*/ |
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class DelegatedProvider implements ProviderInterface { |
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|
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/** |
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* Foreign provider adapter. Must expose chat(), validateKey(), slug(). |
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* |
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* @var object |
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*/ |
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private $delegate; |
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|
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/** |
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* Where the delegate came from, for diagnostics. |
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* |
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* @var string |
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*/ |
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private $source; |
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|
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/** |
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* Constructor. |
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* |
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* @param object $delegate Foreign provider adapter. |
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* @param string $source Source label, e.g. 'mail-mint'. |
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*/ |
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public function __construct( $delegate, $source = 'mail-mint' ) { |
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$this->delegate = $delegate; |
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$this->source = (string) $source; |
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} |
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|
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/** |
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* Whether an object can stand in as a provider. |
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* |
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* @param mixed $candidate Object to check. |
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* @return bool |
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*/ |
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public static function isCompatible( $candidate ) { |
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return is_object( $candidate ) |
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&& method_exists( $candidate, 'chat' ) |
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&& method_exists( $candidate, 'validateKey' ) |
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&& method_exists( $candidate, 'slug' ); |
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} |
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|
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/** |
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* Source label of the delegate. |
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* |
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* @return string |
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*/ |
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public function source() { |
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return $this->source; |
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} |
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|
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/** |
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* Run one model turn through the delegate. |
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* |
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* @param string $system System prompt. |
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* @param array $messages Normalized message list. |
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* @param array $tools Normalized tool definitions. |
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* @param bool $force_tool_use Force a tool call instead of a text-only reply. |
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* @return array|\WP_Error |
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*/ |
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public function chat( $system, $messages, $tools, $force_tool_use = false ) { |
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try { |
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return $this->delegate->chat( $system, $messages, $tools, $force_tool_use ); |
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} catch ( \Throwable $e ) { |
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return new \WP_Error( |
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'ai_delegate_error', |
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sprintf( |
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/* translators: %1$s: source plugin, %2$s: error message. */ |
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__( 'The AI connection borrowed from %1$s failed: %2$s', 'wpfnl' ), |
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$this->source, |
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$e->getMessage() |
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) |
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); |
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} |
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} |
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|
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/** |
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* Validate the delegate's credentials. |
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* |
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* @return true|\WP_Error |
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*/ |
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public function validateKey() { |
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try { |
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return $this->delegate->validateKey(); |
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} catch ( \Throwable $e ) { |
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return new \WP_Error( 'ai_delegate_error', $e->getMessage() ); |
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} |
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} |
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|
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/** |
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* Provider slug reported by the delegate. |
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* |
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* @return string |
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*/ |
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public function slug() { |
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try { |
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return (string) $this->delegate->slug(); |
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} catch ( \Throwable $e ) { |
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return 'delegated'; |
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} |
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} |
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} |
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|
