using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Moq;
using NUnit.Framework;
using LCU.Api.Internal.CoreApiWrapper.Controllers;
using LCU.Api.Internal.CoreApiWrapper.Services;
using LCU.Library.Internal.CoreApiWrapperModel.CoreModels.Organizations;
using LCU.Library.Internal.Exceptions;
using Microsoft.AspNetCore.Http;

namespace LCU.Api.Internal.CoreApiWrapperTest.Controllers
{
    public class OrganizationControllerTest
    {
        private OrganizationController _organizationController;
        private Mock<IOrganizationService> _mockOrganizationService;

        [SetUp]
        public void SetUp()
        {
            _mockOrganizationService = new Mock<IOrganizationService>();

            _organizationController = new OrganizationController(_mockOrganizationService.Object);
        }

        [Test]
        public async Task GetOrganizationByOrganizationNumber_OK()
        {
            const long organizationNumber = 123334234324;
            var testOrganizationResult = new Organization
            {
                Name = "Test Organization"
            };
            var testOrganizationsResult = new List<Organization> { testOrganizationResult };

            _mockOrganizationService.Setup(x => x.GetOrganizationByOrganizationNumber(organizationNumber)).ReturnsAsync(testOrganizationsResult).Verifiable();

            var results = await _organizationController.GetOrganizationByOrganizationNumber(organizationNumber);

            Assert.NotNull(results);
            var okResult = results as OkObjectResult;
            Assert.NotNull(okResult);
            Assert.AreEqual(200, okResult.StatusCode);

            var result = okResult.Value as List<Organization>;
            Assert.NotNull(result);
            Assert.AreEqual(1, result.Count);
            Assert.AreEqual(testOrganizationResult.Name, result.FirstOrDefault()?.Name);
            _mockOrganizationService.Verify();
        }

        [Test]
        public async Task GetOrganizationByOrganizationNumber_ExceptionThrown_ServerError()
        {
            const long organizationNumber = 123334234324;
           
            _mockOrganizationService.Setup(x => x.GetOrganizationByOrganizationNumber(organizationNumber)).ThrowsAsync(new Exception("Thrown from unit test")).Verifiable();

            var results = await _organizationController.GetOrganizationByOrganizationNumber(organizationNumber);

            Assert.NotNull(results);
            var badRes = results as StatusCodeResult;
            Assert.NotNull(badRes);
            Assert.AreEqual(500, badRes.StatusCode);
        }
        
        [Test]
        public async Task GetOrganizationByOrganizationNumber_ServiceExceptionThrown_ServerError()
        {
            const long organizationNumber = 123334234324;
           
            _mockOrganizationService.Setup(x => x.GetOrganizationByOrganizationNumber(organizationNumber)).ThrowsAsync(new ServiceException("Thrown from unit test")).Verifiable();

            var results = await _organizationController.GetOrganizationByOrganizationNumber(organizationNumber);

            Assert.NotNull(results);
            var badRes = results as StatusCodeResult;
            Assert.NotNull(badRes);
            Assert.AreEqual(500, badRes.StatusCode);
        }
        
        [Test]
        public async Task GetMemberByAccountNumber_ServiceException_ServerErrorReturned()
        {
            const long organizationNumber = 123334234324;
            _mockOrganizationService.Setup(x => x.GetOrganizationByOrganizationNumber(organizationNumber)).ThrowsAsync(new ServiceException("Thrown from unit test")).Verifiable();

            var results = await _organizationController.GetOrganizationByOrganizationNumber(organizationNumber);

            Assert.NotNull(results);
            var badRes = results as StatusCodeResult;
            Assert.NotNull(badRes);
            Assert.AreEqual(500, badRes.StatusCode);
        }
        
        [Test]
        public async Task GetMemberByAccountNumber_Exception_ServerErrorReturned()
        {
            const long organizationNumber = 123334234324;
            _mockOrganizationService.Setup(x => x.GetOrganizationByOrganizationNumber(organizationNumber)).ThrowsAsync(new Exception("Thrown from unit test")).Verifiable();

            var results = await _organizationController.GetOrganizationByOrganizationNumber(organizationNumber);

            Assert.NotNull(results);
            var badRes = results as StatusCodeResult;
            Assert.NotNull(badRes);
            Assert.AreEqual(500, badRes.StatusCode);
        }

        [Test]
        public async Task GetOrganizationByMemberAgreementNumber_OK()
        {
            const long memberNumber = 123334234324;
            var testOrganizationResult = new Organization
            {
                Name = "Test Organization"
            };

            _mockOrganizationService.Setup(x => x.GetMemberByMemberAgreeNbr(memberNumber)).ReturnsAsync(testOrganizationResult).Verifiable();

            var results = await _organizationController.GetOrganizationByMemberAgreementNumber(memberNumber);

            Assert.NotNull(results);
            var okResult = results as OkObjectResult;
            Assert.NotNull(okResult);
            Assert.AreEqual(200, okResult.StatusCode);

            var result = okResult.Value as Organization;
            Assert.NotNull(result);
            Assert.AreEqual(testOrganizationResult.Name, result?.Name);
            _mockOrganizationService.Verify();
        }

        [Test]
        public async Task GetOrganizationByMemberAgreementNumber_ServiceException_ServerErrorReturned()
        {
            const long memberNumber = 123334234324;
            _mockOrganizationService.Setup(x => x.GetMemberByMemberAgreeNbr(memberNumber)).ThrowsAsync(new ServiceException("Thrown from unit test")).Verifiable();

            var results = await _organizationController.GetOrganizationByMemberAgreementNumber(memberNumber);

            Assert.NotNull(results);
            var badRes = results as StatusCodeResult;
            Assert.NotNull(badRes);
            Assert.AreEqual(500, badRes.StatusCode);
        }

        [Test]
        public async Task GetOrganizationByMemberAgreementNumber_Exception_ServerErrorReturned()
        {
            const long memberNumber = 123334234324;
            _mockOrganizationService.Setup(x => x.GetMemberByMemberAgreeNbr(memberNumber)).ThrowsAsync(new Exception("Thrown from unit test")).Verifiable();

            var results = await _organizationController.GetOrganizationByMemberAgreementNumber(memberNumber);

            Assert.NotNull(results);
            var badRes = results as StatusCodeResult;
            Assert.NotNull(badRes);
            Assert.AreEqual(500, badRes.StatusCode);
        }

        [Test]
        public async Task GetOrganizationByOrganizationName_GetOrganizationByNameThrowsServiceException_Returns500()
        {
            var organizationName = Guid.NewGuid().ToString();
            _mockOrganizationService
                .Setup(os => os.GetOrganizationByName(organizationName))
                .ThrowsAsync(new ServiceException(string.Empty));

            var response = await _organizationController.GetOrganizationByOrganizationName(organizationName);

            Assert.IsInstanceOf<StatusCodeResult>(response);
            Assert.AreEqual(StatusCodes.Status500InternalServerError, ((StatusCodeResult)response).StatusCode);
        }

        [Test]
        public async Task GetOrganizationByOrganizationName_GetOrganizationByNameThrowsNonServiceException_500()
        {
            var exception = new Exception();
            var organizationName = Guid.NewGuid().ToString();
            _mockOrganizationService
                .Setup(os => os.GetOrganizationByName(organizationName))
                .ThrowsAsync(exception);

            var response = await _organizationController.GetOrganizationByOrganizationName(organizationName);

            Assert.IsInstanceOf<StatusCodeResult>(response);
            Assert.AreEqual(StatusCodes.Status500InternalServerError, ((StatusCodeResult)response).StatusCode);
        }

        [Test]
        public async Task GetOrganizationByOrganizationName_GetOrganizationByNameSucceeds_ReturnsOkAndResult()
        {
            var organizationName = Guid.NewGuid().ToString();
            var organizations = new[] { new Organization() };
            _mockOrganizationService
                .Setup(os => os.GetOrganizationByName(organizationName))
                .ReturnsAsync(organizations);

            var response = await _organizationController.GetOrganizationByOrganizationName(organizationName);

            Assert.IsInstanceOf<OkObjectResult>(response);
            Assert.AreSame(organizations, ((OkObjectResult)response).Value);
        }

        [Test]
        public async Task GetOrganizationByOrganizationNameLike_ServiceCallReturns_ReturnsOkAndResults()
        {
            var organizationName = Guid.NewGuid().ToString();
            var limit = DateTime.Now.Millisecond;
            var organizations = new []{ new Organization{ Name = organizationName } };
            _mockOrganizationService
                .Setup(s => s.GetOrganizationByNameLike(organizationName, limit))
                .ReturnsAsync(organizations);

            var response = await _organizationController.GetOrganizationByOrganizationNameLike(organizationName, limit);

            Assert.IsInstanceOf<OkObjectResult>(response);
            Assert.AreEqual(StatusCodes.Status200OK, ((OkObjectResult)response).StatusCode);
            Assert.AreSame(organizations, ((OkObjectResult)response).Value);
        }

        [Test]
        public async Task GetOrganizationByOrganizationNameLike_ServiceThrowsServiceException_Returns500()
        {
            var organizationName = Guid.NewGuid().ToString();
            _mockOrganizationService
                .Setup(s => s.GetOrganizationByNameLike(organizationName, It.IsAny<int?>()))
                .ThrowsAsync(new ServiceException(string.Empty));

            var response = await _organizationController.GetOrganizationByOrganizationNameLike(organizationName);

            Assert.IsInstanceOf<StatusCodeResult>(response);
            Assert.AreEqual(StatusCodes.Status500InternalServerError, ((StatusCodeResult)response).StatusCode);
        }

        [Test]
        public async Task GetOrganizationByOrganizationNameLike_ServiceThrowsException_Returns500()
        {
            var organizationName = Guid.NewGuid().ToString();
            _mockOrganizationService
                .Setup(s => s.GetOrganizationByNameLike(organizationName, It.IsAny<int?>()))
                .ThrowsAsync(new Exception());

            var response = await _organizationController.GetOrganizationByOrganizationNameLike(organizationName);

            Assert.IsInstanceOf<StatusCodeResult>(response);
            Assert.AreEqual(StatusCodes.Status500InternalServerError, ((StatusCodeResult)response).StatusCode);
        }
        
        [Test]
        public async Task CountOrganizationNumbersByName_ServiceCallReturns_ReturnsOkAndResults()
        {
            var organizationName = Guid.NewGuid().ToString();
            var count = DateTime.Now.Millisecond;
            _mockOrganizationService
                .Setup(s => s.CountOrganizationNumbersByName(organizationName))
                .ReturnsAsync(count);

            var response = await _organizationController.CountOrganizationNumbersByName(organizationName);

            Assert.IsInstanceOf<OkObjectResult>(response);
            Assert.AreEqual(StatusCodes.Status200OK, ((OkObjectResult)response).StatusCode);
            Assert.AreEqual(count, ((OkObjectResult)response).Value);
        }

        [Test]
        public async Task CountOrganizationNumbersByName_ServiceThrowsServiceException_Returns500()
        {
            var organizationName = Guid.NewGuid().ToString();
            _mockOrganizationService
                .Setup(s => s.CountOrganizationNumbersByName(organizationName))
                .ThrowsAsync(new ServiceException(string.Empty));

            var response = await _organizationController.CountOrganizationNumbersByName(organizationName);

            Assert.IsInstanceOf<StatusCodeResult>(response);
            Assert.AreEqual(StatusCodes.Status500InternalServerError, ((StatusCodeResult)response).StatusCode);
        }

        [Test]
        public async Task CountOrganizationNumbersByName_ServiceThrowsException_Returns500()
        {
            var organizationName = Guid.NewGuid().ToString();
            _mockOrganizationService
                .Setup(s => s.CountOrganizationNumbersByName(organizationName))
                .ThrowsAsync(new Exception());

            var response = await _organizationController.CountOrganizationNumbersByName(organizationName);

            Assert.IsInstanceOf<StatusCodeResult>(response);
            Assert.AreEqual(StatusCodes.Status500InternalServerError, ((StatusCodeResult)response).StatusCode);
        }
    }
}