using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using EasyNetQ;
using MalwareMultiScan.Api.Services.Implementations;
using MalwareMultiScan.Api.Services.Interfaces;
using MalwareMultiScan.Backends.Messages;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Configuration.Memory;
using Microsoft.Extensions.Logging;
using Moq;
using NUnit.Framework;

namespace MalwareMultiScan.Tests
{
    public class ReceiverHostedServiceTests
    {
        private IReceiverHostedService _receiverHostedService;
        private Mock<IBus> _busMock;
        private Mock<IScanResultService> _scanResultServiceMock;
        
        [SetUp]
        public void SetUp()
        {
            _busMock = new Mock<IBus>();
            
            _busMock
                .Setup(x => x.Receive("mms.results", It.IsAny<Func<ScanResultMessage, Task>>()))
                .Callback<string, Func<ScanResultMessage, Task>>((s, func) =>
                {
                    var task = func.Invoke(new ScanResultMessage
                    {
                        Id = "test",
                        Backend = "dummy",
                        Duration = 100,
                        Succeeded = true,
                        Threats = new[] {"Test"}
                    });

                    task.Wait();
                });
            
            _scanResultServiceMock = new Mock<IScanResultService>();
            
            var configuration = new ConfigurationRoot(new List<IConfigurationProvider>
            {
                new MemoryConfigurationProvider(new MemoryConfigurationSource())
            })
            {
                ["ResultsSubscriptionId"] = "mms.results"
            };
            
            _receiverHostedService = new ReceiverHostedService(
                _busMock.Object, 
                configuration, 
                _scanResultServiceMock.Object, 
                Mock.Of<ILogger<ReceiverHostedService>>());
        }

        [Test]
        public async Task TestBusReceiveScanResultMessage()
        {
            await _receiverHostedService.StartAsync(default);

            _scanResultServiceMock.Verify(x => x.UpdateScanResultForBackend(
                "test", "dummy", 100, true, true, new[] {"Test"}), Times.Once);
        }

        [Test]
        public async Task TestBusIsDisposedOnStop()
        {
            await _receiverHostedService.StopAsync(default);

            _busMock.Verify(x => x.Dispose(), Times.Once);
        }
    }
}