//// This code is part of Document Solutions for PDF .NET demos.// Copyright (c) MESCIUS inc. All rights reserved.//using System;using System.IO;using GrapeCity.Documents.Pdf;using GrapeCity.Documents.Pdf.AI;using OpenAI;using System.ClientModel;using DsPdfWeb.Demos.Common;
namespace DsPdfWeb.Demos{    // This sample demonstrates how to customize the OpenAIDocumentAssistant    // by explicitly specifying options such as endpoint, model, and others.    //    // It then calls the GetAbstract method to generate an abstract of the PDF,    // similar to the AiGetAbstract sample.    //    // To run this sample locally, set your OpenAI credentials    // using Util.OpenAIToken.    public class AiClientOptions    {        public int CreatePDF(Stream stream)        {            var doc = new GcPdfDocument();            using var fs = File.OpenRead(Path.Combine("Resources", "PDFs", "Wetlands.pdf"));            doc.Load(fs);            try            {                // Create and configure OpenAIClient explicitly:                OpenAIClient openAIClient = new(                    credential: new ApiKeyCredential(Util.OpenAIToken),                    options: new OpenAIClientOptions()                    {                        Endpoint = new Uri(@"https://api.openai.com/v1"), // Default endpoint, specifying for example only                    }                );                // Initialize OpenAIDocumentAssistant with the configured OpenAIClient, customize it as needed:                OpenAIDocumentAssistant a = new(openAIClient)                {                    Model = "gpt-4-turbo",                };                // Get the abstract of the PDF:                var task = a.GetAbstract(doc);                task.Wait();                var page = doc.Pages.Insert(0);                Util.AddNote("Abstract generated using DsPdf AI Assistant\n\n" + task.Result, page);            }            catch (Exception ex)            {                // Make sure you have assigned your OpenAI API key to Util.OpenAIToken:                Util.CreatePdfError(doc, ex.Message);            }            doc.Save(stream);            return doc.Pages.Count;        }    }}