using YLErp.Configuration;
using YLErp.DBModels;
using YLErp.Modules.TradeModule.DocGenerateModule;

namespace YLErp.UnitTestProject.Modules.TradeModule.DocGenerateModule
{
    [TestClass]
    public class GuolianContractNoGeneratorTest
    {
        [TestMethod]
        public void IsGuolianSwapTrade_OnlyMatchesGuolianSwap()
        {
            var swapTrade = CreateSwapTrade();

            Assert.IsTrue(GuolianContractNoGenerator.IsGuolianSwapTrade(swapTrade, CompanyEnum.国联));
            Assert.IsFalse(GuolianContractNoGenerator.IsGuolianSwapTrade(
                new trade { TradeType = "香草期权" }, CompanyEnum.国联));
            Assert.IsFalse(GuolianContractNoGenerator.IsGuolianSwapTrade(swapTrade, CompanyEnum.国泰君安));
        }

        [TestMethod]
        public void ShouldGenerateTradeNumberAfterSave_OnlyGeneratesForBlankTradeNumber()
        {
            var blankTrade = CreateSwapTrade();
            var manualTrade = CreateSwapTrade();
            manualTrade.TradeNumber = "MANUAL-001";

            Assert.IsTrue(GuolianContractNoGenerator.ShouldGenerateTradeNumberAfterSave(
                blankTrade, CompanyEnum.国联));
            Assert.IsFalse(GuolianContractNoGenerator.ShouldGenerateTradeNumberAfterSave(
                manualTrade, CompanyEnum.国联));
            Assert.IsFalse(GuolianContractNoGenerator.ShouldGenerateTradeNumberAfterSave(
                blankTrade, CompanyEnum.国泰君安));
        }

        [DataTestMethod]
        [DataRow("GLMS-st0728-20260729-FICC-Q-210210IB", true, "GLMS-ST0728-20260729-FICC-Q-210210IB")]
        [DataRow("GLMS-st0728-20260729-FICC-Q-210210IB", false, "GLMS-st0728-20260729-FICC-Q-210210IB")]
        public void NormalizeTradeNumberCase_AppliesUpperTradeNumberConfiguration(
            string tradeNumber,
            bool upperTradeNumber,
            string expected)
        {
            var actual = GuolianContractNoGenerator.NormalizeTradeNumberCase(tradeNumber, upperTradeNumber);

            Assert.AreEqual(expected, actual);
        }

        [TestMethod]
        public void BuildTradeNumber_AgencyTrade_UsesNumericSequenceAndSanitizesUnderlyingCode()
        {
            var trade = CreateSwapTrade();
            trade.OpponentRole = "乙方";
            trade.TradeDate = new DateTime(2026, 7, 24);
            trade.UnderlyingCode = "250210.IB";

            var number = GuolianContractNoGenerator.BuildTradeNumber(trade, "IS", AssetUnit.BookCategoryAgency, 3);

            Assert.AreEqual("GLMS-IS-20260724-FICC-03-250210IB", number);
        }

        [DataTestMethod]
        [DataRow(1, "A")]
        [DataRow(26, "Z")]
        [DataRow(27, "AA")]
        public void BuildTradeNumber_SecuritiesLendingTrade_UsesLetterSequence(int sequenceNo, string sequenceCode)
        {
            var trade = CreateSwapTrade();
            trade.OpponentRole = "甲方";
            trade.TradeDate = new DateTime(2026, 7, 24);
            trade.UnderlyingCode = "180205.IB";

            var number = GuolianContractNoGenerator.BuildTradeNumber(trade, "glmscounter", AssetUnit.BookCategorySecuritiesLending, sequenceNo);

            Assert.AreEqual($"GLMS-glmscounter-20260724-FICC-{sequenceCode}-180205IB", number);
        }

        [TestMethod]
        public void GetNextSequenceNo_AgencyTrade_UsesMaximumNumericSequence()
        {
            var tradeNumbers = new[]
            {
                "GLMS-1TT-20260804-FICC-01-180205IB",
                "GLMS-1TT-20260804-FICC-02-180205IB",
                "GLMS-1TT-20260804-FICC-03-180205IB",
                "GLMS-1TT-20260804-FICC-A-180205IB",
                "GLMS-1TT-20260804-FICC-CUSTOM-180205IB"
            };

            var sequenceNo = GuolianContractNoGenerator.GetNextSequenceNo(
                tradeNumbers,
                "1TT",
                new DateTime(2026, 8, 4),
                AssetUnit.BookCategoryAgency);

            Assert.AreEqual(4, sequenceNo);
        }

        [TestMethod]
        public void GetNextSequenceNo_AgencyTrade_StandardManualNumberReservesSequence()
        {
            var tradeNumbers = new[]
            {
                "GLMS-1TT-20260804-FICC-01-180205IB",
                "GLMS-1TT-20260804-FICC-02-180205IB",
                "GLMS-1TT-20260804-FICC-99-180205IB"
            };

            var sequenceNo = GuolianContractNoGenerator.GetNextSequenceNo(
                tradeNumbers,
                "1tt",
                new DateTime(2026, 8, 4),
                AssetUnit.BookCategoryAgency);

            Assert.AreEqual(100, sequenceNo);
        }

        [TestMethod]
        public void GetNextSequenceNo_SecuritiesLendingTrade_ExtendsLetterSequence()
        {
            var tradeNumbers = new[]
            {
                "GLMS-1TT-20260804-FICC-Z-180205IB",
                "GLMS-1TT-20260804-FICC-AA-180205IB",
                "GLMS-1TT-20260804-FICC-ZZ-180205IB",
                "GLMS-1TT-20260804-FICC-99-180205IB"
            };

            var sequenceNo = GuolianContractNoGenerator.GetNextSequenceNo(
                tradeNumbers,
                "1TT",
                new DateTime(2026, 8, 4),
                AssetUnit.BookCategorySecuritiesLending);
            var trade = CreateSwapTrade();
            trade.TradeDate = new DateTime(2026, 8, 4);
            trade.UnderlyingCode = "180205.IB";

            var number = GuolianContractNoGenerator.BuildTradeNumber(
                trade,
                "1TT",
                AssetUnit.BookCategorySecuritiesLending,
                sequenceNo);

            Assert.AreEqual("GLMS-1TT-20260804-FICC-AAA-180205IB", number);
        }

        [TestMethod]
        public void GetNextSequenceNo_SeparatesNumericAndLetterSequences()
        {
            var tradeNumbers = new[]
            {
                "GLMS-1TT-20260804-FICC-01-180205IB",
                "GLMS-1TT-20260804-FICC-02-180205IB",
                "GLMS-1TT-20260804-FICC-A-180205IB",
                "GLMS-1TT-20260804-FICC-B-180205IB"
            };

            var agencySequenceNo = GuolianContractNoGenerator.GetNextSequenceNo(
                tradeNumbers,
                "1TT",
                new DateTime(2026, 8, 4),
                AssetUnit.BookCategoryAgency);
            var securitiesLendingSequenceNo = GuolianContractNoGenerator.GetNextSequenceNo(
                tradeNumbers,
                "1TT",
                new DateTime(2026, 8, 4),
                AssetUnit.BookCategorySecuritiesLending);

            Assert.AreEqual(3, agencySequenceNo);
            Assert.AreEqual(3, securitiesLendingSequenceNo);
        }

        private static trade CreateSwapTrade()
        {
            return new trade { TradeType = "收益互换" };
        }
    }
}