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

namespace LCU.Api.Internal.CoreApiWrapperTest.Controllers
{
    public class TaxControllerTest
    {
        private TaxController _taxController;
        private Mock<ITaxService> _mockTaxService;

        [SetUp]
        public void SetUp()
        {
            _mockTaxService = new Mock<ITaxService>();
            _taxController = new TaxController(_mockTaxService.Object);
        }

        [Test]
        public async Task GetPersonsTaxIdData_OK()
        {
            var personTaxIdDataResponse = new List<PersonTaxIdDataResponse>
            {
                new() {
                    FirstName = "Greg",
                    MiddleInitial = "H",
                    LastName = "Stevens",
                    Suffix = "Jr.",
                    NameFull = "Greg H. Stevens Jr.",
                    PersonNumber = 123
                }
            };

            _mockTaxService.Setup(service => service.GetPersonsTaxIdData("123")).ReturnsAsync(personTaxIdDataResponse).Verifiable();
            var results = await _taxController.GetPersonsTaxIdData("123");
            
            Assert.NotNull(results);
            var okResult = results as OkObjectResult;
            Assert.NotNull(okResult);
            Assert.AreEqual(200, okResult.StatusCode);
            
            var dataResponse = okResult.Value as IEnumerable<PersonTaxIdDataResponse>;
            Assert.NotNull(dataResponse);
            Assert.AreEqual(1, dataResponse.Count());
            var firstResponse = dataResponse.First();
            Assert.AreEqual("Greg",firstResponse.FirstName);
            Assert.AreEqual("H", firstResponse.MiddleInitial);
            Assert.AreEqual("Stevens", firstResponse.LastName);
            Assert.AreEqual("Jr.", firstResponse.Suffix);
            Assert.AreEqual("Greg H. Stevens Jr.", firstResponse.NameFull);
            Assert.AreEqual(123, firstResponse.PersonNumber);
            _mockTaxService.Verify();
        }
        
        [Test]
        public async Task GetPersonsTaxIdData_EmptyString_BadRequest()
        {
            
            var results = await _taxController.GetPersonsTaxIdData("");
            
            Assert.NotNull(results);
            var okResult = results as BadRequestObjectResult;
            Assert.NotNull(okResult);
            Assert.AreEqual(400, okResult.StatusCode);
            
            _mockTaxService.Verify(service => service.GetPersonsTaxIdData(It.IsAny<string>()), Times.Never);
        }
        
        [Test]
        public async Task GetPersonsTaxIdData_ErrorThrown_ServerError()
        {
            _mockTaxService.Setup(service => service.GetPersonsTaxIdData("123")).ThrowsAsync(new Exception("Thrown from unit test."));
            var results = await _taxController.GetPersonsTaxIdData("123");
            
            Assert.NotNull(results);
            var okResult = results as StatusCodeResult;
            Assert.NotNull(okResult);
            Assert.AreEqual(500, okResult.StatusCode);
            _mockTaxService.Verify();
        }
        
        [Test]
        public async Task GetOrganizationsTaxIdData_OK()
        {
            var organizationsTaxIdDataResponse = new List<OrganizationTaxIdDataResponse>
            {
                new() {
                    Name = "Electric Company",
                    OrganizationNumber = 123
                }
            };

            _mockTaxService.Setup(service => service.GetOrganizationsTaxIdData("123")).ReturnsAsync(organizationsTaxIdDataResponse).Verifiable();
            var results = await _taxController.GetOrganizationsTaxIdData("123");
            
            Assert.NotNull(results);
            var okResult = results as OkObjectResult;
            Assert.NotNull(okResult);
            Assert.AreEqual(200, okResult.StatusCode);
            
            var dataResponse = okResult.Value as IEnumerable<OrganizationTaxIdDataResponse>;
            Assert.NotNull(dataResponse);
            Assert.AreEqual(1, dataResponse.Count());
            var firstResponse = dataResponse.First();
            Assert.AreEqual("Electric Company",firstResponse.Name);
            Assert.AreEqual(123, firstResponse.OrganizationNumber);
            _mockTaxService.Verify();
        }
        
        [Test]
        public async Task GetOrganizationsTaxIdData_EmptyString_BadRequest()
        {
            
            var results = await _taxController.GetOrganizationsTaxIdData("");
            
            Assert.NotNull(results);
            var okResult = results as BadRequestObjectResult;
            Assert.NotNull(okResult);
            Assert.AreEqual(400, okResult.StatusCode);
            
            _mockTaxService.Verify(service => service.GetOrganizationsTaxIdData(It.IsAny<string>()), Times.Never);
        }
        
        [Test]
        public async Task GetOrganizationsTaxIdData_ErrorThrown_ServerError()
        {
            _mockTaxService.Setup(service => service.GetOrganizationsTaxIdData("123")).ThrowsAsync(new Exception("Thrown from unit test."));
            var results = await _taxController.GetOrganizationsTaxIdData("123");
            
            Assert.NotNull(results);
            var okResult = results as StatusCodeResult;
            Assert.NotNull(okResult);
            Assert.AreEqual(500, okResult.StatusCode);
            _mockTaxService.Verify();
        }
    }
}