using System;
using System.Collections.Generic;
using System.Data;
using Deltares.DamEngine.Calculators.General;
using Deltares.DamEngine.Calculators.KernelWrappers.Common;
using Deltares.DamEngine.Calculators.KernelWrappers.Interfaces;
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.BlighCalculator;

namespace Deltares.DamEngine.Calculators.KernelWrappers.DamPipingBligh
{
    /// <summary>
    /// Wrapper around Bligh piping kernel
    /// </summary>
    /// <seealso cref="Deltares.DamEngine.Calculators.KernelWrappers.Interfaces.IKernelWrapper" />
    public class DamPipingBlighKernelWrapper : IKernelWrapper
    {
        private const double defaultFluidisationGradient = 0.3;
        private const double defaultMaxReturnValue = 90.0;

        /// <summary>
        /// Create the kernel input.
        /// </summary>
        /// <param name="damKernelInput">The dam kernel input.</param>
        /// <param name="kernelDataInput">The kernel data input.</param>
        /// <param name="kernelDataOutput">The kernel data output.</param>
        /// <returns>
        /// Result of the prepare
        /// </returns>
        public PrepareResult Prepare(DamKernelInput damKernelInput, out IKernelDataInput kernelDataInput, out IKernelDataOutput kernelDataOutput)
        {
            var damPipingBlighOutput = new DamPipingBlighOutput()
            {
                CalculationResult = CalculationResult.NoRun,
                FoSp = defaultMaxReturnValue
            };
            kernelDataOutput = damPipingBlighOutput;
            if (damKernelInput.SubSoilScenario.SegmentFailureMechanismType == FailureMechanismSystemType.Piping)
            {
                var damPipingBlighInput = new DamPipingBlighInput();

                var soilProfile1D = damKernelInput.SubSoilScenario.SoilProfile1D;
                var surfaceLine = damKernelInput.Location.SurfaceLine;
                var location = damKernelInput.Location;
                double riverLevel = damKernelInput.DesignScenario.RiverLevel;
                UpliftSituation upliftSituation;
                var plLines = PlLinesHelper.CreatePlLines(location, soilProfile1D, riverLevel, out upliftSituation);
                UpliftLocationDeterminator 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);
                double xEntry = surfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeToeAtRiver).X;
                double xExit = 0.0;
                double surfaceLevel = 0.0;
                double d70 = 0.0;
                double dCoverLayer = 0.0;
                double? upliftFactor = null;
                if (upliftLocationAndResult != null)
                {
                    xExit = upliftLocationAndResult.X;
                    surfaceLevel = surfaceLine.Geometry.GetZatX(upliftLocationAndResult.X);
                    SoilLayer1D heaveLayer = soilProfile1D.GetLayerWithName(upliftLocationAndResult.LayerWhereUpliftOccuresId);
                    d70 = Physics.FactorMeterToMicroMeter * heaveLayer.Soil.DiameterD70;
                    var topLevelAquifer = soilProfile1D.GetLayerWithName(upliftLocationAndResult.LayerWhereUpliftOccuresId).TopLevel;
                    dCoverLayer = DamPipingHelper.DetermineHeightCoverLayer(topLevelAquifer, surfaceLevel);
                    upliftFactor = upliftLocationAndResult.UpliftFactor;
                }
                double seepageLength = xExit - xEntry;
                damPipingBlighInput.HRiver = riverLevel;
                // 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);
                kernelDataInput = new DamPipingBlighInput()
                {
                    HRiver = riverLevel,
                    HExit = referenceLevel,
                    Rc = defaultFluidisationGradient,
                    DTotal = dCoverLayer,
                    SeepageLength = seepageLength,
                    D70 = d70,
                    
                };
                damPipingBlighOutput.ExitPointX = xExit;
                damPipingBlighOutput.UpliftFactor = upliftFactor;
                damPipingBlighOutput.UpliftSituation = upliftSituation;
                return PrepareResult.Successful;
            }
            kernelDataInput = null;
            return PrepareResult.NotRelevant;
        }

        /// <summary>
        /// Validates the kernel data input.
        /// </summary>
        /// <param name="kernelDataInput">The kernel data input.</param>
        /// <param name="messages">The messages.</param>
        /// <returns></returns>
        public int Validate(IKernelDataInput kernelDataInput, out List<LogMessage> messages)
        {
            var calculatorBligh = CreatePipingCalculatorBligh(kernelDataInput);
            List<string> kernelMessages = calculatorBligh.Validate();
            messages = new List<LogMessage>();
            foreach (string stringMessage in kernelMessages)
            {
                messages.Add(new LogMessage()
                {
                    Message = stringMessage,
                    MessageType = LogMessageType.Error
                });
            }
            return messages.Count;
        }

        /// <summary>
        /// Executes the kernel.
        /// </summary>
        /// <param name="kernelDataInput">The kernel data input.</param>
        /// <param name="kernelDataOutput">The kernel data output.</param>
        /// <param name="messages">The messages.</param>
        /// <exception cref="NoNullAllowedException">No input object defined for Bligh</exception>
        public void Execute(IKernelDataInput kernelDataInput, IKernelDataOutput kernelDataOutput, out List<LogMessage> messages)
        {
            DamPipingBlighOutput damPipingBlighOutput = (DamPipingBlighOutput) kernelDataOutput;
            damPipingBlighOutput.CalculationResult = CalculationResult.NoRun;
            damPipingBlighOutput.FoSp = defaultMaxReturnValue;
            messages = new List<LogMessage>();
            try
            {

                DamPipingBlighInput damPipingBlighInput = kernelDataInput as DamPipingBlighInput;
                if (damPipingBlighInput == null)
                {
                    throw new NoNullAllowedException("No input object defined for Bligh");
                }
                if (damPipingBlighOutput.UpliftSituation.IsUplift)
                {
                    var calculatorBligh = CreatePipingCalculatorBligh(kernelDataInput);
                    calculatorBligh.Calculate();
                    damPipingBlighOutput.FoSp = calculatorBligh.FoSp;
                    damPipingBlighOutput.Hc = calculatorBligh.Hc;
                    damPipingBlighOutput.CalculationResult = CalculationResult.Succeeded;
                }
            }
            catch (Exception e)
            {
                damPipingBlighOutput.CalculationResult = CalculationResult.UnexpectedError;
                messages.Add(new LogMessage(LogMessageType.Error, null, e.Message));
            }
        }

        /// <summary>
        /// Creates the piping calculator bligh based on kernel input.
        /// </summary>
        /// <param name="kernelDataInput">The kernel data input.</param>
        /// <returns></returns>
        /// <exception cref="NoNullAllowedException">No input object defined for Bligh</exception>
        private static PipingCalculatorBligh CreatePipingCalculatorBligh(IKernelDataInput kernelDataInput)
        {
            DamPipingBlighInput damPipingBlighInput = kernelDataInput as DamPipingBlighInput;
            if (damPipingBlighInput == null)
            {
                throw new NoNullAllowedException("No input object defined for Bligh");
            }
            var calculator = new PipingCalculatorBligh
            {
                HRiver = damPipingBlighInput.HRiver,
                HExit = damPipingBlighInput.HExit,
                Rc = damPipingBlighInput.Rc,
                DTotal = damPipingBlighInput.DTotal,
                SeepageLength = damPipingBlighInput.SeepageLength,
                D70 = damPipingBlighInput.D70
            };
            return calculator;
        }

        /// <summary>
        /// Fills the design results from the kernel output.
        /// </summary>
        /// <param name="damKernelInput">The dam kernel input.</param>
        /// <param name="kernelDataOutput">The kernel data output.</param>
        /// <param name="designResult">The design result.</param>
        /// <exception cref="NoNullAllowedException">No output object defined for Bligh</exception>
        public void PostProcess(DamKernelInput damKernelInput, IKernelDataOutput kernelDataOutput, out DesignResult designResult)
        {
            DamPipingBlighOutput damPipingBlighOutput = kernelDataOutput as DamPipingBlighOutput;
            if (damPipingBlighOutput == null)
            {
                throw new NoNullAllowedException("No output object defined for Bligh");
            }

            // TODO: for now this only works for 1D profiles
            string soilProfile2DName = "soilProfile2DName";
            var damFailureMechanismeCalculationSpecification = new DamFailureMechanismeCalculationSpecification()
            {
                FailureMechanismSystemType = FailureMechanismSystemType.Piping,
                PipingModelType = PipingModelType.Bligh
            };
            var designScenario = damKernelInput.DesignScenario;
            var soilProfile1D = damKernelInput.SubSoilScenario.SoilProfile1D;

            designResult = new DesignResult(damFailureMechanismeCalculationSpecification, 
                designScenario, soilProfile1D, soilProfile2DName, 
                DamProjectCalculationSpecification.SelectedAnalysisType);
            designResult.CalculationResult = damPipingBlighOutput.CalculationResult;
            var pipingDesignResults = new PipingDesignResults(PipingModelType.Bligh);
            pipingDesignResults.BlighFactor = damPipingBlighOutput.FoSp;
            pipingDesignResults.BlighHcritical = damPipingBlighOutput.Hc;
            // 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;
            designResult.PipingDesignResults = pipingDesignResults;
            designResult.CalculationResult = damPipingBlighOutput.CalculationResult;
            pipingDesignResults.UpliftSituation = damPipingBlighOutput.UpliftSituation;
            pipingDesignResults.LocalExitPointX = damPipingBlighOutput.ExitPointX;
            pipingDesignResults.UpliftFactor = damPipingBlighOutput.UpliftFactor;


        }

    }
}