using System;
using System.IO;
using Centron.BusinessLogic.WebServices.Administration.FileManagement;
using Centron.Interfaces.BL;
using Centron.Tests.EndToEnd.Infrastructure;
using Xunit;
using Xunit.Abstractions;

namespace Centron.Tests.EndToEnd.Tests.MailDocuments;

public class MailDocumentTests : EndToEndTest
{
    public MailDocumentTests(ITestOutputHelper testOutputHelper) 
        : base(testOutputHelper)
    {
    }

    public const int DirectoryI3D = 61;

    [SkipOnLinuxFact]
    public override void Execute()
    {
        RunTest("msg");
        RunTest("eml");
    }

    private void RunTest(string format)
    {
        var documentI3D = this.CreateTestMailDocument(format);

        var emailResult = this.WithSession(s => s.GetBL<DocumentWebServiceBL>().GetMailDocument(this.GetLoggedInUser(), documentI3D));
        Assert.Equal(ResultStatus.Success, emailResult.Status);
        var email = emailResult.Data;
        this.Verifier.Verify($"Email-{format}", email);

        var attachment = this.WithSession(s => s.GetBL<DocumentWebServiceBL>().GetMailDocumentAttachment(documentI3D, email.Attachments[0].FileName));
        Assert.NotNull(attachment);
        Assert.NotEmpty(attachment);
        Assert.Equal(email.Attachments[0].FileSize, attachment.Length);
    }

    private int CreateTestMailDocument(string format)
    {
        var testFileName = $"Mail.{format}";
        var testFileData = this.GetTestEmail(format);

        var document = this.WithSession(s => s.GetBL<DocumentWebServiceBL>().AddDocumentToDirectory(
            this.GetLoggedInUser(),
            DirectoryI3D,
            testFileData,
            testFileName));

        return document.I3D;
    }

    private byte[] GetTestEmail(string format)
    {
        using var stream = this.GetType().Assembly.GetManifestResourceStream(this.GetType(), $"Test-Mail.{format}");
        using var memoryStream = new MemoryStream();

        stream.CopyTo(memoryStream);

        return memoryStream.ToArray();
    }
}