using NSubstitute;
using PnvPanel.Application.Billing;
using PnvPanel.Application.Billing.MarkPaymentSent;
using PnvPanel.Application.Common.Interfaces;
using PnvPanel.Application.Tests.TestSupport;
using PnvPanel.Domain.Billing;
using Xunit;

namespace PnvPanel.Application.Tests.Billing.MarkPaymentSent;

public class MarkPaymentSentCommandHandlerTests
{
    private readonly IIdentityService _identityService = Substitute.For<IIdentityService>();
    private readonly ITelegramNotifier _telegramNotifier = Substitute.For<ITelegramNotifier>();

    [Fact]
    public async Task Handle_WhenAwaitingPayment_MovesToAwaitingConfirmationAndNotifiesAdmins()
    {
        using var dbContext = InMemoryDbContextFactory.Create();
        var userId = Guid.NewGuid();
        var request = PaymentRequest.Create(userId, PaymentPeriod.Year, 6000);
        dbContext.PaymentRequests.Add(request);
        await dbContext.SaveChangesAsync(CancellationToken.None);

        var handler = new MarkPaymentSentCommandHandler(
            dbContext,
            _identityService,
            _telegramNotifier,
            FakeCurrentUser.Authenticated(userId, "alice")
        );

        var result = await handler.Handle(
            new MarkPaymentSentCommand(request.Id),
            CancellationToken.None
        );

        Assert.True(result.IsSuccess);
        Assert.Equal(PaymentRequestStatus.AwaitingConfirmation, request.Status);
        await _telegramNotifier
            .Received(1)
            .NotifyAdminsPaymentRequestedAsync(
                request.Id,
                Arg.Any<string>(),
                PaymentPeriod.Year,
                6000,
                Arg.Any<CancellationToken>()
            );
    }

    [Fact]
    public async Task Handle_WhenAlreadyAwaitingConfirmation_ReturnsNotAwaitingPayment()
    {
        using var dbContext = InMemoryDbContextFactory.Create();
        var userId = Guid.NewGuid();
        var request = PaymentRequest.Create(userId, PaymentPeriod.Year, 6000);
        request.MarkPaymentSent();
        dbContext.PaymentRequests.Add(request);
        await dbContext.SaveChangesAsync(CancellationToken.None);

        var handler = new MarkPaymentSentCommandHandler(
            dbContext,
            _identityService,
            _telegramNotifier,
            FakeCurrentUser.Authenticated(userId)
        );

        var result = await handler.Handle(
            new MarkPaymentSentCommand(request.Id),
            CancellationToken.None
        );

        Assert.False(result.IsSuccess);
        Assert.Equal(BillingErrors.RequestNotAwaitingPayment, result.Error);
    }
}