<?php
// File: /Applications/MAMP/htdocs/wordpress/wp-content/plugins/gpt3-ai-content-generator/classes/vector/providers/pinecone/upload-file-for-vector-store.php
// Status: NEW

namespace WPAICG\Vector\Providers\Pinecone\Methods;

use WPAICG\Vector\Providers\AIPKit_Vector_Pinecone_Strategy;
use WP_Error;

if (!defined('ABSPATH')) {
    exit; // Exit if accessed directly
}

/**
 * Logic for the upload_file_for_vector_store method of AIPKit_Vector_Pinecone_Strategy.
 * Pinecone does not support direct file uploads for vector store creation/population in the same way OpenAI does.
 * Vectors must be generated and upserted.
 *
 * @param AIPKit_Vector_Pinecone_Strategy $strategyInstance The instance of the strategy class.
 * @param string $file_path Absolute path to the file.
 * @param string $original_filename The original filename.
 * @param string $purpose Purpose of the file (unused for Pinecone).
 * @return array|WP_Error Always returns WP_Error as not applicable.
 */
function upload_file_for_vector_store_logic(AIPKit_Vector_Pinecone_Strategy $strategyInstance, string $file_path, string $original_filename, string $purpose = 'user_data'): array|WP_Error {
    return new WP_Error('not_applicable_pinecone_file_upload', __('Direct file upload is not applicable for Pinecone. Generate embeddings and upsert vectors.', 'gpt3-ai-content-generator'));
}