using System;
using System.Collections.Generic;
using LCU.API.Collections.RepoApi.Domain.AlertChecker;
using LCU.API.Collections.RepoApi.Domain.Processing;
using LCU.Shared.Collections.RepoApiLib.Models;
using LCU.Shared.Collections.RepoApiLib.Models.Consumer;
using Xunit;

namespace LCU.API.Collections.RepoApiTests.AlertCheckers
{
    public class TransactionHistoryCheckerTest
    {
        private DummyTransactionChecker _transactionHistoryChecker;

        [Fact]
        public void Does_Not_Create_Alert_When_Posting_Date_Is_Too_old()
        {
            var transactions = new List<CoreTransaction>()
            {
                new CoreTransaction()
                {
                    postingDate = DateTime.Now.AddDays(-5),
                    transactionTypeCode = "TEST"
                }
            };
            _transactionHistoryChecker = new DummyTransactionChecker();
            var slip = new RepoAccountProcessingSlip()
            {
                TransactionHistory = transactions,
                ExistingRepoAccount = new RepoAccount(),
                UpdatedRepoAccount = new RepoAccount()
            };

            var result = _transactionHistoryChecker.CheckForAlert(slip);

            Assert.Null(result);
        }

        [Fact]
        public void Does_Not_Create_Alert_When_Transaction_Type_Is_Wrong()
        {
            var transactions = new List<CoreTransaction>()
            {
                new CoreTransaction()
                {
                    postingDate = DateTime.Now.AddDays(-1),
                    transactionTypeCode = "WRONGTYPE",
                }
            };
            _transactionHistoryChecker = new DummyTransactionChecker();
            var slip = new RepoAccountProcessingSlip()
            {
                TransactionHistory = transactions,
                ExistingRepoAccount = new RepoAccount(),
                UpdatedRepoAccount = new RepoAccount()
            };
            var result = _transactionHistoryChecker.CheckForAlert(slip);

            Assert.Null(result);
        }

        [Fact]
        public void Test_Formatted_Message()
        {
            var transactions = new List<CoreTransaction>()
            {
                new CoreTransaction()
                {
                    postingDate = DateTime.Now.AddDays(-5),
                }
            };
            _transactionHistoryChecker = new DummyTransactionChecker();
            var result = TransactionHistoryChecker.FormatTransactionMessage(new CoreTransaction()
            {
                postingDate = DateTime.Parse("1941-12-07"),
                amount = 248.49M,
                runningBalance = 2398.05M,
                transactionTypeDescription = "Test",
                transactionTypeCode = "TEST"
            });

            var expectedMessage =
                "Transaction Type: \"TEST\" | Posting: 12/7/1941 12:00:00 AM | Transaction: $248.49 | Balance: $2,398.05 | Description: \"Test\"";
            Assert.Equal(expectedMessage, result);
        }
    }

    internal class DummyTransactionChecker : TransactionHistoryChecker
    {
        public override List<EventAlert> CheckForAlert(RepoAccountProcessingSlip slip)
        {
            var result = GetRecentTransactionsFromType(new List<string> { "TEST TRANSACTION" }, slip.TransactionHistory);
            return result != null ? new List<EventAlert> { new EventAlert() } : null;
        }
    }
}