using System;
using System.Collections.Generic;
using System.Data;
using Deltares.DamEngine.Calculators.KernelWrappers.Common;
using Deltares.DamEngine.Calculators.KernelWrappers.Interfaces;
using Deltares.DamEngine.Calculators.Properties;
using Deltares.DamEngine.Calculators.Uplift;
using Deltares.DamEngine.Data.General;
using Deltares.DamEngine.Data.General.Results;
using Deltares.DamEngine.Data.Geotechnics;
using Deltares.DamEngine.Data.Standard.Calculation;
using Deltares.DamEngine.Data.Standard.Logging;
using Deltares.DamPiping.Sellmeijer4ForcesCalculator;

namespace Deltares.DamEngine.Calculators.KernelWrappers.DamPipingSellmeijer4Forces
{

    public class DamPipingSellmeijer4ForcesKernelWrapper : IKernelWrapper
    {
        private const double defaultFluidisationGradient = 0.3;
        private const double defaultMaxReturnValue = 90.0;

        /// <summary>
        /// Prepares the specified dam kernel input.
        /// </summary>
        /// <param name="damKernelInput">The dam kernel input.</param>
        /// <param name="kernelDataInput">The kernel data input.</param>
        /// <param name="kernelDataOutput">The krenel data output</param>
        /// <returns>
        /// Result of the prepare
        /// </returns>
        public PrepareResult Prepare(DamKernelInput damKernelInput, out IKernelDataInput kernelDataInput, out IKernelDataOutput kernelDataOutput)
        {
            var damOutput = new DamPipingSellmeijer4ForcesOutput()
            {
                FoSp = defaultMaxReturnValue
            };
            kernelDataOutput = damOutput;
            if (damKernelInput.SubSoilScenario.SegmentFailureMechanismType == FailureMechanismSystemType.Piping)
            {
                const double cDefaultWaterViscosity = 1.33E-06;
                const double factorMeterToMicroMeter = 1000000.0;

                var soilProfile1D = damKernelInput.SubSoilScenario.SoilProfile1D;
                var surfaceLine = damKernelInput.Location.SurfaceLine;
                var location = damKernelInput.Location;
                var riverLevel = damKernelInput.DesignScenario.RiverLevel;
                UpliftSituation upliftSituation;
                var plLines = PlLinesHelper.CreatePlLines(location, soilProfile1D, riverLevel, out upliftSituation);
                var upliftLocationDeterminator = new UpliftLocationDeterminator
                {
                    PLLines = plLines,
                    SoilProfile = soilProfile1D,
                    SurfaceLine = surfaceLine,
                    DikeEmbankmentMaterial = location.GetDikeEmbankmentSoil(),
                    XSoilGeometry2DOrigin = location.XSoilGeometry2DOrigin
                };
                var upliftLocationAndResult = upliftLocationDeterminator.GetLocationAndResult(damKernelInput.DesignScenario.GetUpliftCriterionPiping(null));
                upliftSituation.IsUplift = (upliftLocationAndResult != null);
                var xEntry = surfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeToeAtRiver).X;
                var xExit = 0.0;
                var surfaceLevel = 0.0;
                var dCoverLayer = 0.0;
                var d70 = 0.0;
                var aquiferHeight = 0.0;
                var permeabilityKx = 0.0;
                double? upliftFactor = null;
                if (upliftLocationAndResult != null)
                {
                    xExit = upliftLocationAndResult.X;
                    surfaceLevel = surfaceLine.Geometry.GetZatX(upliftLocationAndResult.X);
                    var topLevelAquifer = soilProfile1D.GetLayerWithName(upliftLocationAndResult.LayerWhereUpliftOccuresId).TopLevel;
                    dCoverLayer = DamPipingHelper.DetermineHeightCoverLayer(topLevelAquifer, surfaceLevel);

                    var aquiferLayer = SoilProfile1DAquiferLayerCombiner.CombineLayers(soilProfile1D, upliftLocationAndResult.LayerWhereUpliftOccuresId);
                    d70 = aquiferLayer.D70 * factorMeterToMicroMeter;

                    aquiferHeight = aquiferLayer.Height;
                    permeabilityKx = aquiferLayer.PermeabilityKx;
                    upliftFactor = upliftLocationAndResult.UpliftFactor;
                }
                var seepageLength = xExit - xEntry;

                // Reference level is highest value of surfaceLevel or PolderLevel
                // Uit TR Zandmeevoerende wellen (1999): "Het verval dH is gelijk aan het verschil tussen buitenwaterstand (het ontwerppeil(OP)) 
                // bij zeedijken en de maatgevende hoogwaterstand (MHW bij rivierdijken) en de waterstand binnendijks ter plaatse van het uittredepunt, 
                // rekening houdend met zeespiegelrijzing etc.(zie paragraaf 3.7.2). In dien ter plaatse van het uittreepunt of de opbarstlocatie 
                // geen vrije waterstand heerst kan gerekend worden met het maaiveldniveau, rekening houdend met eventuele maaiveld daling (zie paragraaf 3.7.2)."
                var referenceLevel = Math.Max(location.PolderLevel, surfaceLevel);

                Soil inBetweenAquiferlayerSoil = soilProfile1D.BottomAquiferLayer.Soil;
                if (soilProfile1D.InBetweenAquiferLayer != null)
                {
                    inBetweenAquiferlayerSoil = soilProfile1D.InBetweenAquiferLayer.Soil;
                }

                kernelDataInput = new DamPipingSellmeijer4ForcesInput()
                {
                    HRiver = riverLevel,
                    HExit = referenceLevel,
                    Rc = defaultFluidisationGradient,
                    DTotal = dCoverLayer,
                    SeepageLength = seepageLength,
                    // specific Sellmeijer 4 Forces
                    WaterViscosity = cDefaultWaterViscosity,
                    WhitesConstant = inBetweenAquiferlayerSoil.WhitesConstant,
                    BeddingAngle = inBetweenAquiferlayerSoil.BeddingAngle,
                    D70 = d70,
                    AquiferHeight = aquiferHeight,
                    PermeabilityKx = permeabilityKx,
                };
                damOutput.ExitPointX = xExit;
                damOutput.UpliftFactor = upliftFactor;
                damOutput.UpliftSituation = upliftSituation;
                return PrepareResult.Successful;
            }
            kernelDataInput = null;
            return PrepareResult.NotRelevant;
        }

        /// <summary>
        /// Validates the specified kernel data input.
        /// </summary>
        /// <param name="kernelDataInput">The kernel data input.</param>
        /// <param name="kernelDataOutput">The kernel data output.</param>
        /// <param name="messages">The return messages.</param>
        /// <returns>
        /// Number of errors that prevent a calculation
        /// </returns>
        public int Validate(IKernelDataInput kernelDataInput, IKernelDataOutput kernelDataOutput, out List<LogMessage> messages)
        {
            DamPipingSellmeijer4ForcesOutput damPipingOutput = (DamPipingSellmeijer4ForcesOutput)kernelDataOutput;
            var calculator = CreatePipingCalculatorSellmeijer4Forces(kernelDataInput);
            List<string> kernelMessages = calculator.Validate();
            messages = new List<LogMessage>();
            foreach (string stringMessage in kernelMessages)
            {
                messages.Add(new LogMessage() { Message = stringMessage, MessageType = LogMessageType.Error });
            }
            if (messages.Count > 0)
            {
                damPipingOutput.CalculationResult = CalculationResult.InvalidInputData;
            }
            return messages.Count;
        }

        /// <summary>
        /// Executes the kernel.
        /// </summary>
        /// <param name="kernelDataInput">The kernel data input.</param>
        /// <param name="kernelDataOutput">The kernel data input.</param>
        /// <param name="messages">The return messages.</param>
        /// <exception cref="NoNullAllowedException">No input object defined</exception>
        public void Execute(IKernelDataInput kernelDataInput, IKernelDataOutput kernelDataOutput, out List<LogMessage> messages)
        {
            DamPipingSellmeijer4ForcesInput damPipingInput = kernelDataInput as DamPipingSellmeijer4ForcesInput;
            if (damPipingInput == null)
            {
                throw new NoNullAllowedException(Resources.DamPipingSellmeijer4ForcesKernelWrapper_NoInputObjectDefinedForSellmeijer4Forces);
            }
            DamPipingSellmeijer4ForcesOutput damPipingOutput = (DamPipingSellmeijer4ForcesOutput)kernelDataOutput;
            if (damPipingOutput == null)
            {
                throw new NoNullAllowedException(Resources.DamPipingSellmeijer4ForcesKernelWrapper_NoInputObjectDefinedForSellmeijer4Forces);
            }
            damPipingOutput.FoSp = defaultMaxReturnValue;
            messages = new List<LogMessage>();
            if (damPipingOutput.UpliftSituation.IsUplift)
            {
                var calculator = CreatePipingCalculatorSellmeijer4Forces(kernelDataInput);
                calculator.Calculate();
                damPipingOutput.FoSp = calculator.FoSp;
                damPipingOutput.Hc = calculator.Hc;
                damPipingOutput.CalculationResult = CalculationResult.Succeeded;
            }
        }

        private static PipingCalculatorSellmeijer4Forces CreatePipingCalculatorSellmeijer4Forces(IKernelDataInput kernelDataInput)
        {
            DamPipingSellmeijer4ForcesInput damPipingInput = kernelDataInput as DamPipingSellmeijer4ForcesInput;
            if (damPipingInput == null)
            {
                throw new NoNullAllowedException(Resources.DamPipingSellmeijer4ForcesKernelWrapper_NoInputObjectDefinedForSellmeijer4Forces);
            }
            var calculator = new PipingCalculatorSellmeijer4Forces
            {
                HRiver = damPipingInput.HRiver,
                HExit = damPipingInput.HExit,
                Rc = damPipingInput.Rc,
                DTotal = damPipingInput.DTotal,
                AquiferHeight = damPipingInput.AquiferHeight,
                SeepageLength = damPipingInput.SeepageLength,
                D70 = damPipingInput.D70,
                WhitesConstant = damPipingInput.WhitesConstant,
                BeddingAngle = damPipingInput.BeddingAngle,
                PermeabilityKx = damPipingInput.PermeabilityKx,
                WaterViscosity = damPipingInput.WaterViscosity,
            };
            return calculator;
        }

        /// <summary>
        /// Fills the design results with the kernel output.
        /// </summary>
        /// <param name="damKernelInput">The dam kernel input.</param>
        /// <param name="kernelDataOutput">The kernel data output.</param>
        /// <param name="resultMessage">The result message.</param>
        /// <param name="designResult">The design result.</param>
        /// <exception cref="NoNullAllowedException">No input or output object defined</exception>
        public void PostProcess(DamKernelInput damKernelInput, IKernelDataOutput kernelDataOutput, string resultMessage, out DesignResult designResult)
        {
            DamPipingSellmeijer4ForcesOutput damPipingOutput = kernelDataOutput as DamPipingSellmeijer4ForcesOutput;
            if (damPipingOutput == null)
            {
                throw new NoNullAllowedException(Resources.DamPipingSellmeijer4ForcesKernelWrapper_NoOutputObjectDefinedForSellmeijer4Forces);
            }
            if (damKernelInput == null)
            {
                throw new NoNullAllowedException(Resources.DamPipingSellmeijer4ForcesKernelWrapper_NoInputObjectDefinedForSellmeijer4Forces);
            }

            string soilProfile2DName = "";
            var d = new DamFailureMechanismeCalculationSpecification();
            var designScenario = damKernelInput.DesignScenario;
            var soilProfile1D = damKernelInput.SubSoilScenario.SoilProfile1D;
            designResult = new DesignResult(d, designScenario, soilProfile1D, soilProfile2DName, AnalysisType.NoAdaption);

            designResult.CalculationResult = damPipingOutput.CalculationResult;
            var pipingDesignResults = new PipingDesignResults(PipingModelType.Sellmeijer4Forces);
            designResult.PipingDesignResults = pipingDesignResults;
            pipingDesignResults.ResultMessage = resultMessage;
            // TODO: temporary outcommented to get UI working
            //if (designResult.CalculationResult == CalculationResult.Succeeded)
            {
                // TODO: for now this only works for NoAdaption of geometry; if adaption is enabled, the real redesigned surfaceline has to be assigned
                pipingDesignResults.RedesignedSurfaceLine = damKernelInput.Location.SurfaceLine;
                pipingDesignResults.Sellmeijer4ForcesFactor = damPipingOutput.FoSp;
                pipingDesignResults.Sellmeijer4ForcesHcritical = damPipingOutput.Hc;
                pipingDesignResults.LocalExitPointX = damPipingOutput.ExitPointX;
                pipingDesignResults.UpliftFactor = damPipingOutput.UpliftFactor;
                pipingDesignResults.UpliftSituation = damPipingOutput.UpliftSituation;
            }
        }

    }
}