Gremlin/Gremlin_BlazorServer/Services/PdfService.cs

using System.Diagnostics;
using Gremlin_BlazorServer.Data.EntityClasses;

namespace Gremlin_BlazorServer.Services;

internal abstract class PdfService {
    public static async Task<bool> CreatePdf(Quote quote) {
        //Copy images to quotePath
        try {
            string path = HostingService.GetImgPath();
            File.Copy(Path.Combine(path, "agilentLogo.png"), Path.Combine(quote.Path, "agilentLogo.png"), true);
            File.Copy(Path.Combine(path, "signWoitschetzki.png"), Path.Combine(quote.Path, "signWoitschetzki.png"), true);

            //Create PDF twice
            if (await RunningPdfLaTeX(quote, 2)) return RemoveTempFiles(quote.Path);

            Console.WriteLine("Erstellung des PDF nicht erfolgreich!");
            return false;
        }
        catch (Exception ex) {
            Console.WriteLine(ex);
            return false;
        }
    }

    private static bool RemoveTempFiles(string quotePath) {
        DirectoryInfo directoryInfo = new(quotePath);
        foreach (FileInfo file in directoryInfo.EnumerateFiles())
            if (file.Extension is ".aux" or ".out" or ".log" or ".png")
                try {
                    file.Delete();
                }
                catch (Exception ex) {
                    Console.WriteLine(ex);
                    return false;
                }

        return true;
    }

    private static async Task<bool> RunningPdfLaTeX(Quote quote, int runs) {
        for (int i = 0; i < runs; i++) {
            using Process process = new();
            process.StartInfo.WorkingDirectory = quote.Path;
            process.StartInfo.FileName = "pdflatex";
            process.StartInfo.Arguments = quote.QuotationNumber;
            process.StartInfo.UseShellExecute = true;

            try {
                _ = await Task.Run(() => process.Start());
            }
            catch (Exception ex) {
                Console.WriteLine(ex);
                return false;
            }

            process.WaitForExit();
        }

        return true;
    }

    public static bool OpenPdfWithOkular(Quote quote) {
        using Process process = new();
        process.StartInfo.WorkingDirectory = quote.Path;
        process.StartInfo.FileName = "okular"; //@"C:\Program Files\Okular\bin\okular.exe";
        process.StartInfo.Arguments = $"{quote.QuotationNumber}.pdf";

        try {
            return process.Start();
        }
        catch (Exception ex) {
            Console.WriteLine(ex);
            return false;
        }
    }
}