//// This code is part of Document Solutions for PDF .NET demos.// Copyright (c) MESCIUS inc. All rights reserved.//using System;using System.IO;using System.Collections.Generic;using GrapeCity.Documents.Pdf;using GrapeCity.Documents.Pdf.AI;using DsPdfWeb.Demos.Common;
namespace DsPdfWeb.Demos{    // This sample uses the PDF AI Assistant (DsPdfAI) to analyze the document content    // and generate an outline tree (bookmarks) based on inferred headings, which is then added to the PDF.    //    // To run this sample locally, set your OpenAI credentials    // using Util.OpenAIToken.
    public class AiBuildOutlines    {        public int CreatePDF(Stream stream, int paramsIdx = 0)        {            return CreatePDF(stream, GetSampleParamsList()[paramsIdx]);        }
        public int CreatePDF(Stream stream, string[] sampleParams)        {            var doc = new GcPdfDocument();            using var fs = File.OpenRead(Path.Combine("Resources", "PDFs", sampleParams[3]));            doc.Load(fs);            try            {                var a = new OpenAIDocumentAssistant(Util.OpenAIToken);                var task = a.BuildOutlines(doc);                task.Wait();                doc.PageMode = PageMode.UseOutlines;            }            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;        }
        public static List<string[]> GetSampleParamsList()        {            // Items are: name, description, info, PDF name:            return new List<string[]>()            {                new string[] { "@ai-outlines/Newsletter", "Use DsPdfAI to generate outlines for a newsletter", "",                    "Newsletter.pdf" },                new string[] { "@ai-outlines/Financial Report", "Use DsPdfAI to generate outlines for a financial report", "",                    "FinancialReport.pdf" },                new string[] { "@ai-outlines/Lease Proposal", "Use DsPdfAI to generate outlines for a lease proposal", "",                    "Commercial_Real_Estate_Lease_Proposal.pdf" },                new string[] { "@ai-outlines/Lease Agreement", "Use DsPdfAI to generate outlines for a lease agreement", "",                    "LeaseAgreement.pdf" },            };        }    }}