using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Reflection.Metadata.Ecma335;
using System.Text;
using System.Threading.Tasks;
using PuppeteerSharp;


namespace WGneu.Print {
    public static class Pdf {

        private static readonly string CHROMIUM = @"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe";
        private static IBrowser? Browser = null;

        public static async Task Init() {
            Browser = await Puppeteer.LaunchAsync(new LaunchOptions {
                Headless = true,
                ExecutablePath = CHROMIUM,
            });
        }

        public static async Task Convert(string path_html, string path_pdf) {
            if (Browser == null)
                await Init();

            using var page = await Browser?.NewPageAsync();
            await page.GoToAsync("file://" + path_html);
            await page.WaitForFunctionAsync("() => window.finished");
            await page.PdfAsync(path_pdf);
        }

        public static void Display(string path) {
            Process.Start(new ProcessStartInfo() {
                FileName = path,
                UseShellExecute = true,
            });
        }
    }
}