using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Castle.Core.Internal;
using Moq;
using NUnit.Framework;
using LCU.Api.Internal.CoreApiWrapper.Services;
using LCU.Library.Internal.CoreApiWrapperLib.DataAccess;
using LCU.Library.Internal.CoreApiWrapperModel.CoreModels.Transaction;
using LCU.Library.Internal.CoreApiWrapperModel.CoreModels.CoreRequests;
using LCU.Library.Internal.CoreApiWrapperModel.CoreModels;
using LCU.Library.Internal.CoreApiWrapperModel.CoreModels.Accounts;

namespace LCU.Api.Internal.CoreApiWrapperTest.Service
{
    public class TransactionServiceTest
    {
        private TransactionService _transactionService;
        private Mock<ITransactionDao> _mockTransactionDao;
        private Mock<IAccountService> _mockAccountService;

        [SetUp]
        public void SetUp()
        {
            _mockTransactionDao = new Mock<ITransactionDao>();
            _mockAccountService = new Mock<IAccountService>();
            _transactionService = new TransactionService(_mockTransactionDao.Object, _mockAccountService.Object);
        }

        [Test]
        public async Task GetTransactionHistory_Return_Two()
        {
            var setupAccountNumber = 8675309143;
            
            var accountResponse = new Account()
            {
                Id="fasdfsda;fjsdipfu0-231231"
            };
            _mockAccountService.Setup(x => x.GetAccountDetails(It.IsAny<CoreRequestParameters>(),
                                                               It.IsAny<AcctNbrRequest>())).ReturnsAsync(accountResponse).Verifiable();

            _mockTransactionDao
                .Setup(x => x.FindTransactionHistoryById(It.IsAny<CoreRequestParameters>(), It.IsAny<TransactionHistoryRequest>(), It.IsAny<string>()))
                .ReturnsAsync(
                    new List<TransactionHistory>()
                    {
                       new TransactionHistory()
                       {
                            AccountNumber = setupAccountNumber,
                            ActivityDateTime = Convert.ToDateTime("1/1/2021"),
                            AllowCustomerView = true,
                            Amount = 220,
                            BalanceAccountNumber = 2,
                            BalanceTypeDescription = "Note Interest (Excess)",
                            CurrTransactionStatusCode = "C",
                            DueDate = null,
                            EffectiveDate = "2021-10-14",
                            ExternalTransactionDescription = null,
                            Id = "22",
                            IsDisputedTransaction = false,
                            OnlineCheckTraceNumber = 0,
                            PostingDate = "2021-10-15",
                            RunningBalance = (decimal?)3529.53,
                            TimeUniqueNumber = 86570239,
                            TransactionNumber = 22,
                            TransactionReference = $"{setupAccountNumber} - 22",
                            TransactionStatusDescription = "Completed",
                            TransactionTypeCode = "SPMT",
                            TransactionTypeDescription = "Regular Payment   LandmarkCU      TRANSFER  12345",
                            Uid = "abcd77299_sABCDMD]MYo5crdZyPN3s2QAHx[CHxgigabcdeYuALuVGL9Jklm_22"
                       },
                       new TransactionHistory()
                       {
                            AccountNumber = setupAccountNumber,
                            ActivityDateTime = Convert.ToDateTime("1/2/2021"),
                            AllowCustomerView = true,
                            Amount = 30,
                            BalanceAccountNumber = 2,
                            BalanceTypeDescription = "Note Interest (Excess)",
                            CurrTransactionStatusCode = "C",
                            DueDate = null,
                            EffectiveDate = "2021-10-14",
                            ExternalTransactionDescription = null,
                            Id = "23",
                            IsDisputedTransaction = false,
                            OnlineCheckTraceNumber = 0,
                            PostingDate = "2021-10-15",
                            RunningBalance = (decimal?)3559.53,
                            TimeUniqueNumber = 86570239,
                            TransactionNumber = 23,
                            TransactionReference = $"{setupAccountNumber} - 23",
                            TransactionStatusDescription = "Completed",
                            TransactionTypeCode = "SPMT",
                            TransactionTypeDescription = "Regular Payment   LandmarkCU      TRANSFER  12346",
                            Uid = "abcd77299_sABCDMD]MYo5crdZyPN3s2QAHx[CHxgigabcdeYuALuVGL9Jklm_23"
                       }
                    })
                .Verifiable();            

            var results = await _transactionService.GetTransactionHistory(1234555, Convert.ToDateTime("12/25/2020"), Convert.ToDateTime("2/2/2021"), null);

            var resultsList = results.ToList();
            Assert.NotNull(results);
            Assert.AreEqual(2, resultsList.Count);
            Assert.True(resultsList.Any(x => x.AccountNumber == setupAccountNumber));

            _mockAccountService.Verify();
            _mockTransactionDao.Verify();
        }

        [Test]
        public async Task GetTransactionHistory_NullTransactions_EmptyList()
        {
            var setupAccountNumber = 8675309143;
            
            var accountResponse = new Account()
            {
                Id="fasdfsda;fjsdipfu0-231231"
            };
            
            _mockAccountService.Setup(x => x.GetAccountDetails(It.IsAny<CoreRequestParameters>(),
                                                               It.IsAny<AcctNbrRequest>())).ReturnsAsync(accountResponse).Verifiable();

            _mockTransactionDao
                .Setup(x => x.FindTransactionHistoryById(It.IsAny<CoreRequestParameters>(), It.IsAny<TransactionHistoryRequest>(), It.IsAny<string>()))
                .ReturnsAsync((IEnumerable<TransactionHistory>)null)
                .Verifiable();            

            var results = await _transactionService.GetTransactionHistory(1234555, Convert.ToDateTime("12/25/2020"), Convert.ToDateTime("2/2/2021"), null);
            Assert.NotNull(results);
            var resultsList = results.ToList();
            Assert.IsEmpty(resultsList);

            _mockAccountService.Verify();
            _mockTransactionDao.Verify();
        }
        
        [Test]
        public async Task GetTransactionHistory_NoAccount_ReturnNull()
        {
            _mockAccountService.Setup(x => x.GetAccountDetails(It.IsAny<CoreRequestParameters>(),
                                                               It.IsAny<AcctNbrRequest>())).ReturnsAsync((Account)null).Verifiable();
            
            var results = await _transactionService.GetTransactionHistory(1234555, Convert.ToDateTime("12/25/2020"), Convert.ToDateTime("2/2/2021"), null);

            Assert.Null(results);
            
            _mockAccountService.Verify();
            _mockTransactionDao.Verify( x => x.FindTransactionHistoryById(It.IsAny<CoreRequestParameters>(), It.IsAny<TransactionHistoryRequest>(), It.IsAny<string>()), Times.Never);
        }
        
        [Test]
        public void GetTransactionHistory_TransactionDao_Exception()
        {
            var accountResponse = new Account()
            {
                Id = "fasdfsda;fjsdipfu0-231231"
            };
            _mockAccountService.Setup(x => x.GetAccountDetails(It.IsAny<CoreRequestParameters>(),
                                                               It.IsAny<AcctNbrRequest>())).ReturnsAsync(accountResponse).Verifiable();
            _mockTransactionDao.Setup(x => x.FindTransactionHistoryById(It.IsAny<CoreRequestParameters>(), It.IsAny<TransactionHistoryRequest>(), It.IsAny<string>()))
                .Throws(new Exception("Ohh nooo"));

            Assert.ThrowsAsync<Exception>(async () =>
                await _transactionService.GetTransactionHistory(1234555, Convert.ToDateTime("12/25/2020"), Convert.ToDateTime("2/2/2021"), null));
            _mockAccountService.Verify();
        }

        [Test]
        public void GetTransactionHistory_AccountService_Exception()
        {
            _mockAccountService.Setup(x => x.GetAccountDetails(It.IsAny<CoreRequestParameters>(),
                                                               It.IsAny<AcctNbrRequest>())).Throws(new Exception("Ohh nooo"));

            Assert.ThrowsAsync<Exception>(async () =>
                await _transactionService.GetTransactionHistory(1234555, Convert.ToDateTime("12/25/2020"), Convert.ToDateTime("2/2/2021"), null));
            _mockAccountService.Verify();
        }

        [Test]
        public async Task GetTransactionsByDateSpan_OK()
        {
            _mockTransactionDao.Setup(x => x.GetTransactionsByDateSpan(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>())).ReturnsAsync(new List<TransactionAlertInfo>() { new TransactionAlertInfo() });

            var results = await _transactionService.GetTransactionsByDateSpan(DateTime.UtcNow.AddMinutes(-1), DateTime.UtcNow, new string[1]);

            Assert.NotNull(results);
            var resultsList = results.ToList();
            Assert.AreEqual(1, resultsList.Count);
        }

        [Test]
        public async Task GetTransactionsByDateSpan_Exception()
        {
            _mockTransactionDao.Setup(x => x.GetTransactionsByDateSpan(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>())).ThrowsAsync(new Exception("Exception!"));

            Assert.ThrowsAsync<Exception>(async () =>
                await _transactionService.GetTransactionsByDateSpan(DateTime.UtcNow.AddMinutes(-1), DateTime.UtcNow, new string[1]));
        }
    }
}