using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using FluentAssertions;
using Moq;
using NUnit.Framework;
using NzbDrone.Common;
using NzbDrone.Core.Configuration;
using NzbDrone.Core.Model.Nzbget;
using NzbDrone.Core.Providers.Core;
using NzbDrone.Core.Providers.DownloadClients;
using NzbDrone.Test.Common;

namespace NzbDrone.Core.Test.ProviderTests.DownloadClientTests.NzbgetProviderTests
{
    public class QueueFixture : TestBase
    {
        [SetUp]
        public void Setup()
        {
            var fakeConfig = Mocker.GetMock<IConfigService>();
            fakeConfig.SetupGet(c => c.NzbgetHost).Returns("192.168.5.55");
            fakeConfig.SetupGet(c => c.NzbgetPort).Returns(6789);
            fakeConfig.SetupGet(c => c.NzbgetUsername).Returns("nzbget");
            fakeConfig.SetupGet(c => c.NzbgetPassword).Returns("pass");
            fakeConfig.SetupGet(c => c.NzbgetTvCategory).Returns("TV");
            fakeConfig.SetupGet(c => c.NzbgetBacklogTvPriority).Returns(PriorityType.Normal);
            fakeConfig.SetupGet(c => c.NzbgetRecentTvPriority).Returns(PriorityType.High);
        }

        private void WithFullQueue()
        {
            Mocker.GetMock<HttpProvider>()
                    .Setup(s => s.PostCommand("192.168.5.55:6789", "nzbget", "pass", It.IsAny<String>()))
                    .Returns(File.ReadAllText(@".\Files\Nzbget\Queue.txt"));
        }

        private void WithEmptyQueue()
        {
            Mocker.GetMock<HttpProvider>()
                    .Setup(s => s.PostCommand("192.168.5.55:6789", "nzbget", "pass", It.IsAny<String>()))
                    .Returns(File.ReadAllText(@".\Files\Nzbget\Queue_empty.txt"));
        }

        private void WithFailResponse()
        {
            Mocker.GetMock<HttpProvider>()
                    .Setup(s => s.PostCommand("192.168.5.55:6789", "nzbget", "pass", It.IsAny<String>()))
                    .Returns(File.ReadAllText(@".\Files\Nzbget\JsonError.txt"));
        }

        [Test]
        public void should_return_no_items_when_queue_is_empty()
        {
            WithEmptyQueue();

            Mocker.Resolve<NzbgetProvider>()
                  .GetQueue()
                  .Should()
                  .BeEmpty();
        }

        [Test]
        public void should_return_item_when_queue_has_item()
        {
            WithFullQueue();

            Mocker.Resolve<NzbgetProvider>()
                  .GetQueue()
                  .Should()
                  .HaveCount(1);
        }

        [Test]
        public void should_throw_when_error_is_returned()
        {
            WithFailResponse();

            Assert.Throws<ApplicationException>(() => Mocker.Resolve<NzbgetProvider>().GetQueue());
        }
    }
}