using FluentAssertions;
using Microsoft.AspNetCore.Mvc;
using Moq;
using NUnit.Framework;
using Strata.ContinuousImprovement.Api.Controllers.JazzQvi;
using Strata.ContinuousImprovement.Biz.QualityVariation.QVI;
using System;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;

namespace Strata.ContinuousImprovement.Api.Test.Unit.Controllers
{
	[TestFixture, Category("Unit"), Category("Controller")]
	public class QviLineItemSavingsControllerTests
	{
		private Mock<IQviLineItemSavingsService> _serviceMock;
		private QviLineItemSavingsController _controller;

		[SetUp]
		public void SetUp()
		{
			_serviceMock = new Mock<IQviLineItemSavingsService>();
			_controller = new QviLineItemSavingsController(_serviceMock.Object);
		}

		[Test]
		public async Task GetCaseTypeFamilies_WhenConfigurationGuidIsEmpty_ReturnsBadRequest()
		{
			var result = await _controller.GetCaseTypeFamilies(Guid.Empty, false, CancellationToken.None);

			result.Result.Should().BeOfType<BadRequestObjectResult>();
			_serviceMock.Verify(s => s.GetCaseTypeFamilyInfoAsync(It.IsAny<Guid>(), It.IsAny<bool>(), It.IsAny<CancellationToken>()), Times.Never);
		}

		[Test]
		public async Task GetCaseTypeFamilies_WhenConfigurationGuidIsValid_ReturnsOk()
		{
			var configurationGuid = Guid.NewGuid();
			var expected = new[] { new QviLineItemCaseTypeFamilyInfo { QualityVariationEventId = 1, CaseTypeFamilyId = 2 } };
			_serviceMock
				.Setup(s => s.GetCaseTypeFamilyInfoAsync(configurationGuid, true, It.IsAny<CancellationToken>()))
				.ReturnsAsync(expected);

			var result = await _controller.GetCaseTypeFamilies(configurationGuid, true, CancellationToken.None);

			result.Result.Should().BeOfType<OkObjectResult>();
			var okResult = result.Result as OkObjectResult;
			var value = okResult?.Value as System.Collections.Generic.IEnumerable<QviLineItemCaseTypeFamilyInfo>;
			value.Should().NotBeNull();
			value!.Single().CaseTypeFamilyId.Should().Be(2);
			_serviceMock.Verify(s => s.GetCaseTypeFamilyInfoAsync(configurationGuid, true, It.IsAny<CancellationToken>()), Times.Once);
		}

		[Test]
		public async Task GetDrgTypes_WhenConfigurationGuidIsEmpty_ReturnsBadRequest()
		{
			var result = await _controller.GetDrgTypes(Guid.Empty, false, CancellationToken.None);

			result.Result.Should().BeOfType<BadRequestObjectResult>();
			_serviceMock.Verify(s => s.GetDrgTypeInfoAsync(It.IsAny<Guid>(), It.IsAny<bool>(), It.IsAny<CancellationToken>()), Times.Never);
		}

		[Test]
		public async Task GetDrgTypes_WhenConfigurationGuidIsValid_ReturnsOk()
		{
			var configurationGuid = Guid.NewGuid();
			var expected = new[] { new QviLineItemDrgTypeInfo { DrgType = "APR" } };
			_serviceMock
				.Setup(s => s.GetDrgTypeInfoAsync(configurationGuid, true, It.IsAny<CancellationToken>()))
				.ReturnsAsync(expected);

			var result = await _controller.GetDrgTypes(configurationGuid, true, CancellationToken.None);

			result.Result.Should().BeOfType<OkObjectResult>();
			var okResult = result.Result as OkObjectResult;
			var value = okResult?.Value as System.Collections.Generic.IEnumerable<QviLineItemDrgTypeInfo>;
			value.Should().NotBeNull();
			value!.Single().DrgType.Should().Be("APR");
			_serviceMock.Verify(s => s.GetDrgTypeInfoAsync(configurationGuid, true, It.IsAny<CancellationToken>()), Times.Once);
		}

		[Test]
		public async Task GetEncounterSavings_WhenConfigurationGuidIsEmpty_ReturnsBadRequest()
		{
			var result = await _controller.GetEncounterSavings(Guid.Empty, cancellationToken: CancellationToken.None);

			result.Result.Should().BeOfType<BadRequestObjectResult>();
			_serviceMock.Verify(s => s.GetEncounterSavingInfoAsync(It.IsAny<Guid>(), It.IsAny<Guid?>(), It.IsAny<bool?>(), It.IsAny<CancellationToken>()), Times.Never);
		}

		[Test]
		public async Task GetEncounterSavings_WhenConfigurationGuidIsValid_ReturnsOk()
		{
			var configurationGuid = Guid.NewGuid();
			var expected = new[] { new QviLineItemEncounterSavingInfo { EncounterRecordNumber = "enc-1" } };
			_serviceMock
				.Setup(s => s.GetEncounterSavingInfoAsync(configurationGuid, It.IsAny<Guid?>(), It.IsAny<bool?>(), It.IsAny<CancellationToken>()))
				.ReturnsAsync(expected);

			var result = await _controller.GetEncounterSavings(configurationGuid, cancellationToken: CancellationToken.None);

			result.Result.Should().BeOfType<OkObjectResult>();
			var okResult = result.Result as OkObjectResult;
			var value = okResult?.Value as System.Collections.Generic.IEnumerable<QviLineItemEncounterSavingInfo>;
			value.Should().NotBeNull();
			value!.Single().EncounterRecordNumber.Should().Be("enc-1");
			_serviceMock.Verify(s => s.GetEncounterSavingInfoAsync(configurationGuid, null, null, It.IsAny<CancellationToken>()), Times.Once);
		}
	}
}