//
// This code is part of Document Solutions for PDF demos.
// Copyright (c) MESCIUS inc. All rights reserved.
//
using System;
using System.IO;
using System.Drawing;
using System.Collections.Generic;
using System.Linq;
using GrapeCity.Documents.Pdf;
using GrapeCity.Documents.Text;

namespace DsPdfWeb.Demos
{
    // This sample provides a number of forms that can be filled
    // and saved or printed right in the sample browser
    // using the 'save' or 'print' buttons in DsPdfViewer.
    //
    // Note that if you print the filled form, everything is done
    // in the client browser, no data is sent to our demo server.
    // But if you click the 'save' button, the entered data along with
    // the original form are sent to the demo server. The server uses DsPdf
    // to insert the data into the PDF, and sends the filled PDF form
    // back to the client. The demo server neither stores nor analyzes
    // the data.
    //
    // Note also that the viewer's 'download' button will only download
    // the original form without the data. Unlike the 'save' button, 'download'
    // does not access the server, it only gets the original PDF that was loaded
    // into the viewer.
    public class FillForms
    {
        // By default, generate the first form:
        public void CreatePDF(Stream stream, int paramsIdx = 0)
        {
            CreatePDF(stream, GetSampleParamsList()[paramsIdx]);
        }

        public void CreatePDF(Stream stream, string[] sampleParams)
        {
            var fn = sampleParams[3];
            var pn = Path.Combine("Resources", "PDFs", "Forms", "misc", fn);
            using (var fs = File.OpenRead(pn))
                fs.CopyTo(stream);
        }

        public static List<string[]> GetSampleParamsList()
        {
            // Strings are name, description, info, rest are arbitrary strings:
            return new List<string[]>()
            {
                new string[] { "@us-tax-forms/Form W-7", "Application for IRS Individual Taxpayer Identification Number", "", "fw7-demo.pdf" },
                new string[] { "@us-tax-forms/Form SS-4", "Application for Employer Identification Number", null, "fss4-demo.pdf" },
                new string[] { "@e-com-forms/Goods Return", "Goods Return and Exchange Form", null, "goods-return-form.pdf" },
                new string[] { "@hr-forms/Time Sheet", "Time Sheet Form", null, "time-sheet-form.pdf" },
                new string[] { "@hr-forms/Trip Permission", "Offsite field trip permission slip", null, "offsite-field-trip-form.pdf" },
                new string[] { "@member-forms/Health Info", "Health Info Intake Form", null, "health-intake-form.pdf" },
                new string[] { "@event-forms/Event Feedback", "Event Feedback Form", null, "event-feedback-form.pdf" },
            };
        }

        // Used by SupportApiDemo to initialize DsPdfViewer.
        public static GcPdfViewerSupportApiDemo.Models.PdfViewerOptions PdfViewerOptions
        {
            get => new GcPdfViewerSupportApiDemo.Models.PdfViewerOptions(
                GcPdfViewerSupportApiDemo.Models.PdfViewerOptions.Options.FormEditorPanel);
        }
    }
}