using System.Diagnostics;
using System.IO;
using CRAWLER.Models;

namespace CRAWLER.Services;

internal interface IPdfOpener
{
    void OpenAttachment(PdfAttachment attachment);
    void OpenUri(string uri);
}

internal sealed class PdfShellService : IPdfOpener
{
    public void OpenAttachment(PdfAttachment attachment)
    {
        if (attachment == null)
        {
            return;
        }

        if (!string.IsNullOrWhiteSpace(attachment.LocalPath) && File.Exists(attachment.LocalPath))
        {
            OpenUri(attachment.LocalPath);
            return;
        }

        if (!string.IsNullOrWhiteSpace(attachment.SourceUrl))
        {
            OpenUri(attachment.SourceUrl);
        }
    }

    public void OpenUri(string uri)
    {
        if (string.IsNullOrWhiteSpace(uri))
        {
            return;
        }

        Process.Start(new ProcessStartInfo(uri)
        {
            UseShellExecute = true
        });
    }
}