using System;
using System.Collections;
using System.Collections.Generic;
using Deltares.DSoilModel.Data;
using Deltares.Geotechnics;
using Deltares.Geotechnics.ConePenetrationTest;
using Deltares.Standard.Attributes;
using Deltares.Standard.Forms.DExpress;
using Deltares.Standard.Reflection;

namespace Deltares.DSoilModel.Forms
{
    public class DSoilModelContext : GeotechnicsContext
    {
        #region Properties for user column filters

        private readonly HashSet<string> alwaysVisibleProperties = new HashSet<string>
        {
            StaticReflection.GetMemberName<Soil>(s => s.Name),
            StaticReflection.GetMemberName<Soil>(s => s.Description),
            StaticReflection.GetMemberName<Soil>(s => s.Color),
            StaticReflection.GetMemberName<Soil>(s => s.SoilType),
        };

        private readonly HashSet<string> macrostabilitySoilProperties = new HashSet<string>
        {
            StaticReflection.GetMemberName<Soil>(s => s.AbovePhreaticLevel),
            StaticReflection.GetMemberName<Soil>(s => s.AbovePhreaticLevelStochast),
            StaticReflection.GetMemberName<Soil>(s => s.BelowPhreaticLevel),
            StaticReflection.GetMemberName<Soil>(s => s.BelowPhreaticLevelStochast),
            StaticReflection.GetMemberName<Soil>(s => s.ShearStrengthModel),
            StaticReflection.GetMemberName<Soil>(s => s.Cohesion),
            StaticReflection.GetMemberName<Soil>(s => s.CohesionStochast),
            StaticReflection.GetMemberName<Soil>(s => s.FrictionAngle),
            StaticReflection.GetMemberName<Soil>(s => s.FrictionAngleStochast),
            StaticReflection.GetMemberName<Soil>(s => s.UsePop),
            StaticReflection.GetMemberName<Soil>(s => s.POP),
            StaticReflection.GetMemberName<Soil>(s => s.POPStochast),
            StaticReflection.GetMemberName<Soil>(s => s.RatioCuPc),
            StaticReflection.GetMemberName<Soil>(s => s.RatioCuPcStochast),
            StaticReflection.GetMemberName<Soil>(s => s.StrengthIncreaseExponent),
            StaticReflection.GetMemberName<Soil>(s => s.StrengthIncreaseExponentStochast)
        };

        private readonly HashSet<string> pipingSoilProperties = new HashSet<string>
        {
            StaticReflection.GetMemberName<Soil>(s => s.AbovePhreaticLevel),
            StaticReflection.GetMemberName<Soil>(s => s.AbovePhreaticLevelStochast),
            StaticReflection.GetMemberName<Soil>(s => s.BelowPhreaticLevelStochast),
            StaticReflection.GetMemberName<Soil>(s => s.BelowPhreaticLevel),
            StaticReflection.GetMemberName<Soil>(s => s.DiameterD70),
            StaticReflection.GetMemberName<Soil>(s => s.DiameterD70Stochast),
            StaticReflection.GetMemberName<Soil>(s => s.PermeabKx),
            StaticReflection.GetMemberName<Soil>(s => s.PermeabKxStochast),
        };

        private readonly HashSet<string> flowslideSoilProperties = new HashSet<string>
        {
            StaticReflection.GetMemberName<Soil>(s => s.DiameterD15),
            StaticReflection.GetMemberName<Soil>(s => s.DiameterD50),
            StaticReflection.GetMemberName<Soil>(s => s.FrictionAngle),
            StaticReflection.GetMemberName<Soil>(s => s.Porosity),
            StaticReflection.GetMemberName<Soil>(s => s.MinPorosity),
            StaticReflection.GetMemberName<Soil>(s => s.MaxPorosity),
            StaticReflection.GetMemberName<Soil>(s => s.Evoldm),
            StaticReflection.GetMemberName<Soil>(s => s.Ks0),
            StaticReflection.GetMemberName<Soil>(s => s.GammaKorrel),
            StaticReflection.GetMemberName<Soil>(s => s.ParM),
            StaticReflection.GetMemberName<Soil>(s => s.ParU),
            StaticReflection.GetMemberName<Soil>(s => s.ParV),
            StaticReflection.GetMemberName<Soil>(s => s.ParR),
            StaticReflection.GetMemberName<Soil>(s => s.ParS2),
        };

        private readonly HashSet<string> combinedSoilProperties = null;

        #endregion

        public DSoilModelContext()
        {
            combinedSoilProperties = new HashSet<string>();
            combinedSoilProperties.UnionWith(macrostabilitySoilProperties);
            combinedSoilProperties.UnionWith(pipingSoilProperties);
            combinedSoilProperties.UnionWith(flowslideSoilProperties);
        }

        /// <summary>
        /// The current filter to display all parameters, stochastic parameters only or as-is parameters only.
        /// </summary>
        public ParameterViewSettings ParameterView { get; set; }

        /// <summary>
        /// Method indicating a visibility override value for a given instance object.
        /// </summary>
        /// <param name="source">Object being evaluated.</param>
        /// <param name="member">Name of the member which is part of <paramref name="source" />.</param>
        /// <returns>
        /// True if visible; False if hidden; Null if no override.
        /// </returns>
        public override bool? IsVisible(object source, string member)
        {
            if (source is BaseControlBinding || source is GridViewControl)
            {
                // Make sure popup menu item for adaption of units is disabled in gridview.
                if (member == "EditUnitCommand")
                {
                    return false;
                }
            }

            var grid = source as GridViewControl;
            if (grid != null)
            {
                if (member == "AddRowCommand" && (grid.Name == "GeometryPointsGridViewControl" || grid.Name == "GeometryCurvesGridViewControl"))
                {
                    return false;
                }
            }

            if (source is MainForm)
            {
                // hide units command from tools menu
                if (member == "SelectUnits")
                {
                    return false;
                }

                if (member == "ExecuteDeleteCommand")
                {
                    return false;
                }
            }

            if (source is SosSoilLayer1D && member == ((SosSoilLayer1D)source).GetMemberName(x => x.BottomLevel))
            {
                return false;
            }

            if (source is SoilLayer1D && member == ((SoilLayer1D)source).GetMemberName(x => x.BottomLevel))
            {
                return false;
            }

            var layer = source as BoringLayer;
            if (layer != null)
            {
                if (member == layer.GetMemberName(x => x.Name))
                {
                    return false;
                }
                if (member == layer.GetMemberName(x => x.Description))
                {
                    return false;
                }
                if (member == layer.GetMemberName(x => x.IsAquifer))
                {
                    return false;
                }
                if (member == layer.GetMemberName(x => x.Height))
                {
                    return false;
                }
                if (member == layer.GetMemberName(x => x.SandMedian))
                {
                    return layer.IsSandMedianUsed;
                }
                if (member == layer.GetMemberName(x => x.SandMedian))
                {
                    return layer.IsSandMedianUsed;
                }
                if (member == layer.GetMemberName(x => x.GammaSat))
                {
                    return layer.IsGammaSatUsed;
                }
                if (member == layer.GetMemberName(x => x.GammaUnsat))
                {
                    return layer.IsGammaUnsatUsed;
                }
            }

            if (source is BoringDatarow || (source is Boring && member == ((Boring)source).GetMemberName(x => x.BoringDatarows)))
            {
                return false;
            }

            var profile1D = source as SoilProfile1D;
            if (profile1D != null)
            {
                if (member == profile1D.GetMemberName(sp1 => sp1.Location) ||
                    member == profile1D.GetMemberName(x => x.ProbabilityOfOccurrence) ||
                    member == profile1D.GetMemberName(x => x.X) ||
                    member == profile1D.GetMemberName(x => x.Y))
                    return false;
            }

            var profile2D = source as SoilProfile2D;
            if (profile2D != null)
            {
                if (member == profile2D.GetMemberName(sp1 => sp1.Location) ||
                    member == profile2D.GetMemberName(sp1 => sp1.XBegin) ||
                    member == profile2D.GetMemberName(sp1 => sp1.XEnd) ||
                    member == profile2D.GetMemberName(sp1 => sp1.YBegin) ||
                    member == profile2D.GetMemberName(sp1 => sp1.YEnd) ||
                    member == profile2D.GetMemberName(sp1 => sp1.Length))
                {
                    return false;
                }
            }

            var soil = source as Soil;
            if (soil != null)
            {
                // For Wti version, stresstables are not to be used (DSB-506)
                if (member == soil.GetMemberName(s => s.UseDefaultShearStrengthModel) ||
                    member == soil.GetMemberName(s => s.StressTable) ||
                    member == soil.GetMemberName(s => s.StressTableStochast) ||
                    member == soil.GetMemberName(s => s.BondStressTable))
                {
                    return false;
                }
                bool? visibleAccordingParameterView = VisibleAccordingParameterView(member);
                if (visibleAccordingParameterView != null && !(bool)visibleAccordingParameterView)
                {
                    return false;
                }

                bool? visibleAccordingSoilUserFilter = VisibleAccordingSoilUserFilter(member);
                if (visibleAccordingSoilUserFilter != null)
                {
                    return visibleAccordingSoilUserFilter;
                }

                if (member == "StressTableStochast") // DSB-299, used only in the "old" stability kernel
                {
                    return false;
                }
            }
            if (source is SurfaceLine2)
            {
                var surfaceLine = (SurfaceLine2)source;
                if (member == surfaceLine.GetMemberName(x => x.GeometryMustIncludePoint_Xml))
                {
                    return false;
                }
                if (member == surfaceLine.GetMemberName(x => x.LandwardDirection))
                {
                    return false;
                }
                if (member == surfaceLine.GetMemberName(x => x.Geometry))
                {
                    return false;
                }
            }
            else if (source is SoilProfile1D || source is SoilProfile2D)
            {
                if (member == "ChangeLog")
                {
                    return true;
                }
            }

            if (source is PreConsolidationStress)
            {
                if (member == ((PreConsolidationStress)source).GetMemberName(x => x.StressStochast))
                {
                    return ParameterView != ParameterViewSettings.AsIsParameters;
                }
                else if (member == ((PreConsolidationStress)source).GetMemberName(x => x.StressValue))
                {
                    return ParameterView != ParameterViewSettings.ProbabilisticParameters;
                }
            }

            //See DSB-538: for now do not use zones, old value = true
            var segment = source as SoilSegment;
            if (segment != null)
            {
                if (member == segment.GetMemberName(seg => seg.CreateSettlementZones))
                {
                    return false;
                }
            }
            return base.IsVisible(source, member);
        }

        /// <summary>
        /// Method indicating if the enabled override value for a given instance object.
        /// </summary>
        /// <param name="source">Object being evaluated.</param>
        /// <param name="member">Name of the member which is part of <paramref name="source" />.</param>
        /// <returns>
        /// True if enabled; False if disabled; Null if no override.
        /// </returns>
        public override bool? IsEnabled(object source, string member)
        {
            if (source is ConePenetrationTestData)
            {
                return false;
            }

            if (source is Boring || source is BoringLayer)
            {
                return false;
            }

            if (source is ConePenetrationTestPerSegment && member == ((ConePenetrationTestPerSegment)source).GetMemberName(x => x.Xlocal))
            {
                return false;
            }

            if (source is BoringPerSegment && member == ((BoringPerSegment)source).GetMemberName(x => x.Xlocal))
            {
                return false;
            }

            var soil = source as Soil;
            if (soil != null)
            {
                BindPropertyInfo propertyInfo = PropertyInfoSupport.GetPropertyInfo(typeof(Soil), member);
                if (propertyInfo != null)
                {
                    if (!propertyInfo.CanWrite)
                    {
                        return false;
                    }
                }

                if (member.EndsWith("Stochast"))
                {
                    if (ParameterView == ParameterViewSettings.AsIsParameters)
                    {
                        return false;
                    }
                }
                if (!alwaysVisibleProperties.Contains(member))
                {
                    if (ParameterView == ParameterViewSettings.ProbabilisticParameters)
                    {
                        return false;
                    }
                }

                return true; // all other parameters should be editable
            }

            var grid = source as GridViewControl;
            if (grid != null)
            {
                if ((member == "EditCommand" || member == "PasteCommand" || member == "CopyCommand") && (grid.Name == "CptsGridViewControl" || grid.Name == "BoringsGridViewControl"))
                {
                    return false;
                }

                // GridViewControls from DSoilModelPlugin
                if ((member == "EditCommand" || member == "PasteCommand") && (grid.Name == "CPTsTable" || grid.Name == "BoringsTable"))
                {
                    return false;
                }

                // GridViewControl from DSoilModelPlugin
                if ((member == "AddRowCommand" || member == "InsertRowCommand") && grid.Name == "SoilSegmentsTable")
                {
                    return false;
                }
            }

            return base.IsEnabled(source, member);
        }

        /// <summary>
        /// Method returning a collection of domain object for list or enum type members;
        /// </summary>
        /// <param name="source">Object being evaluated.</param>
        /// <param name="member">Name of the member which is part of <paramref name="source"/>.</param>
        /// <returns>A collection of domain object; Null if no override.</returns>
        public override ICollection GetDomain(object source, string member)
        {
            // not yet implemented here (yet)
            if (source is Soil && member == StaticReflection.GetMemberName<Soil>(s => s.ShearStrengthModel))
            {
                return new List<ShearStrengthModel>
                {
                    ShearStrengthModel.CPhi,
                    ShearStrengthModel.CuCalculated,
                    ShearStrengthModel.None
                };
            }
            return null;
        }

        /// <summary>
        /// Gets the format.
        /// </summary>
        /// <param name="type">The type.</param>
        /// <param name="source">The source.</param>
        /// <param name="member">The member.</param>
        /// <returns></returns>
        public override string GetFormat(Type type, object source, string member)
        {
            if (type == typeof(ConePenetrationTestPerSegment) || source is ConePenetrationTestPerSegment)
            {
                if (member == StaticReflection.GetMemberName<ConePenetrationTestPerSegment>(x => x.Xlocal))
                {
                    return "F3";
                }
            }
            if (type == typeof(BoringPerSegment) || source is BoringPerSegment)
            {
                if (member == StaticReflection.GetMemberName<BoringPerSegment>(x => x.Xlocal))
                {
                    return "F3";
                }
            }

            return base.GetFormat(type, source, member);
        }

        protected override HashSet<string> GetFilteredProperties(object soilUserFilter)
        {
            if (soilUserFilter is UserColumnFilters)
            {
                switch ((UserColumnFilters)soilUserFilter)
                {
                    case UserColumnFilters.MacrostabilityWti:
                    {
                            return macrostabilitySoilProperties;
                    }
                    case UserColumnFilters.PipingWti:
                    {
                            return pipingSoilProperties;
                    }
                    case UserColumnFilters.FlowSlideWti:
                    {
                            return flowslideSoilProperties;
                    }
                }
            }
            return combinedSoilProperties;
        }

        private bool? VisibleAccordingSoilUserFilter(string member)
        {
            if (alwaysVisibleProperties.Contains(member))
            {
                return true;
            }
            var filteredProperties = GetFilteredProperties(SoilUserFilter);

            if (filteredProperties == null)
            {
                return null;
            }
            return filteredProperties.Contains(member);
        }

        private bool? VisibleAccordingParameterView(string member)
        {
            if (member.EndsWith("Popup"))
            {
                return false;
            }
            if (member.EndsWith("Stochast"))
            {
                return ParameterView != ParameterViewSettings.AsIsParameters;
            }
            if (!alwaysVisibleProperties.Contains(member))
            {
                return ParameterView != ParameterViewSettings.ProbabilisticParameters;
            }

            return null;
        }
    }
}