using System.Xml.Serialization;

namespace ShrlAlgoToolkit.RevitAddins.RvIndependent.MetroGauges.LandXMLData;

[XmlType("Alignment")]
[Serializable]
public class Alignment : ComparableStructure<Alignment>
{
    public Alignment()
    {
        Init();
    }

    public Alignment(Alignment alignment)
    {
        if (alignment != null)
        {
            Id = alignment.Id;
            Description = alignment.Description;
            Name = alignment.Name;
            StationStart = alignment.StationStart;
            StationEnd = alignment.StationEnd;
            Length = alignment.Length;
            CoordGeom = alignment.CoordGeom;
            Regions = alignment.Regions;
            FeatureLines = alignment.FeatureLines;
            CrossSections = alignment.CrossSections;
            Profile = alignment.Profile;
            SuperElevations = alignment.SuperElevations;
            Structres = alignment.Structres;
            Import = alignment.Import;
            geometricCenter = alignment.geometricCenter;
            return;
        }

        Init();
    }

    private string description;
    private Point3D geometricCenter;

    private string id;

    private string name;

    [XmlIgnore]
    public Point3D GeometricCenter
    {
        get
        {
            if (geometricCenter == null)
            {
                SetGeometricCenter();
            }

            return geometricCenter;
        }
        set => geometricCenter = null;
    }

    [Obsolete("Property \"GetGeometricCenter\" is deprecated, please use \"GeometricCenter\" instead.")]
    [XmlIgnore]
    public Point3D GetGeometricCenter => GeometricCenter;

    [XmlIgnore]
    public ProfAlign GroundProfile => Profile.ProfileCurve.Find(item => item.Type == 0) ?? Profile.ProfileCurve.FirstOrDefault();

    [XmlIgnore]
    public IEnumerable<string> PointCodes => CrossSections.SelectMany(item => item.PointCodes);

    [XmlIgnore]
    public IEnumerable<string> SurfaceNames => CrossSections.SelectMany(item => item.SurfaceNames);

    [XmlIgnore]
    public ProfAlign WayProfile
    {
        get
        {
            ProfAlign result;
            if ((result = Profile.ProfileCurve.Find(item => item.Type == 1)) == null)
            {
                result = Profile.ProfileCurve.Find(item => item.Type == 2) ?? Profile.ProfileCurve.FirstOrDefault();
            }

            return result;
        }
    }

    [XmlAttribute("desc")]
    public string Description
    {
        get => description;
        set => description = value;
    }

    [XmlAttribute("AlignmentID")]
    public string Id
    {
        get => id;
        set => id = value;
    }

    [XmlAttribute("name")]
    public string Name
    {
        get => name;
        set => name = value;
    }

    [XmlIgnore]
    internal string AlignmentId => (Roadway != null ? Roadway.CorridorID : string.Empty) + Id;

    [XmlAttribute("import")]
    public bool Import { get; set; }

    [XmlElement("CoordGeom")]
    public CoordGeom CoordGeom { get; set; }

    [XmlAttribute("staStart")]
    public double StationStart { get; set; }

    [XmlAttribute("staEnd")]
    public double StationEnd { get; set; }

    [XmlAttribute("length")]
    public double Length { get; set; }

    [XmlArray("CrossSects")]
    public List<CrossSection> CrossSections { get; set; }

    [XmlArray("FeatureLines")]
    public List<FeatureLine> FeatureLines { get; set; }

    [XmlArray("Regions")]
    public List<Region> Regions { get; set; }

    [XmlArray("Structures")]
    public List<Structures> Structres { get; set; }

    [XmlElement("Profile")]
    public Profile Profile { get; set; }

    [XmlElement("Superelevation")]
    public List<SuperElevation> SuperElevations { get; set; }

    [XmlIgnore]
    public Roadway Roadway { get; set; }

    public void AddRegion(Region region)
    {
        Regions.Add(region);
        region.Alignment = this;
    }

    public void ConnectRegions()
    {
        foreach (var region in Regions)
        {
            region.Alignment = this;
        }
    }

    public void ConnectSectionsShape(DesignShape linkShape, DesignShape refShape, CrossSection section, CrossSection refSection = null)
    {
        var num = 0;
        linkShape.CrossSectionPoints.Clear();
        var array = (from ds in section.DesignShapes where ds.Name == refShape.Name && ds.Side == refShape.Side select ds)
            .SelectMany(ds => ds.CrossSectionPoints)
            .ToArray();
        var list = !(refSection != null)
            ? new List<CrossSectionPoint>()
            : (from ds in refSection.DesignShapes where ds.Name == refShape.Name && ds.Side == refShape.Side select ds)
                .SelectMany(ds => ds.CrossSectionPoints)
                .ToList();
        var list2 = list;
        using (var enumerator = refShape.CrossSectionPoints.GetEnumerator())
        {
            while (enumerator.MoveNext())
            {
                var point = enumerator.Current;
                var crossSectionPoint = array.FirstOrDefault(p => p.Code == point?.Code);
                if (crossSectionPoint != null)
                {
                    linkShape.CrossSectionPoints.Add(new CrossSectionPoint(crossSectionPoint));
                }
                else
                {
                    var num2 = list2.IndexOf(point);
                    if (num2 >= 0)
                    {
                        num = num2;
                    }

                    CrossSectionPoint crossSectionPoint2 = new(num < array.Length ? array[num] : array.Last()) { Code = point?.Code };
                    linkShape.CrossSectionPoints.Add(crossSectionPoint2);
                }

                num++;
            }
        }

        linkShape.UpdatePointDependentData();
        section.DesignShapes.Add(linkShape);
    }

    public override bool DifferentDescendants(Alignment alignment)
    {
        if (Regions.Count == alignment.Regions.Count)
        {
            for (var i = 0; i < Regions.Count; i++)
            {
                if (!Regions[i].Equals(alignment.Regions[i]))
                {
                    return true;
                }
            }

            return false;
        }

        return true;
    }

    public override bool DifferentItem(Alignment alignment)
    {
        return StationStart != alignment.StationStart || StationEnd != alignment.StationEnd || GeometricCenter != alignment.GeometricCenter;
    }

    public Region FindRegion(Region reference)
    {
        return Regions.FirstOrDefault(item => item.Name == reference.Name);
    }

    public Point3D GeometricCenterInRange(double startStation, double endStation)
    {
        var array = (from item in CrossSections where item.Station >= startStation && item.Station <= endStation select item).ToArray();
        return CalcGeometricCenter(array, array.Length);
    }

    public double GetAzimuthAtStation(double station)
    {
        var num = 0.0;
        var num2 = 0.0;
        foreach (var interval in CoordGeom.HorizonCurve)
        {
            if (num + interval.Length >= station)
            {
                num2 += interval.GetDirectionAtPoint(station - num);
                break;
            }

            num2 += interval.GetDirectionAtPoint(interval.Length);
            num += interval.Length;
        }

        return num2;
    }

    //直线
    public double GetHeightAtStation(double station)
    {
        var result = 0.0;
        var profAlign = Profile.ProfileCurve.FirstOrDefault(item => item.Type == 2);
        if (profAlign != null)
        {
            var num = profAlign.PVIs.Count - 1;
            var i = 0;
            while (i < num)
            {
                if (profAlign.PVIs[i].First >= station)
                {
                    if (profAlign.PVIs[i] is not ParaCurve && profAlign.PVIs[i + 1] is not ParaCurve)
                    {
                        result =
                            profAlign.PVIs[i].Second
                            + (
                                (station - profAlign.PVIs[i].First)
                                * (profAlign.PVIs[i + 1].Second - profAlign.PVIs[i].Second)
                                / (profAlign.PVIs[i + 1].First - profAlign.PVIs[i].First)
                            );
                    }

                    break;
                }

                i++;
            }
        }

        return result;
    }

    public IEnumerable<string> GetPointCodes(Side side, int region = -1)
    {
        return region >= 0
            ? side != Side.Both
                ? (from item in CrossSections where item.Region == region select item).SelectMany(item => item.GetPointCodes(side)).Distinct()
                : (from item in CrossSections where item.Region == region select item).SelectMany(item => item.PointCodes).Distinct()
            : side != Side.Both
                ? CrossSections.SelectMany(item => item.GetPointCodes(side)).Distinct()
                : PointCodes.Distinct();
    }

    public void Initialize(string n, double s, double e, double l, string id, string d)
    {
        Name = n;
        StationStart = s;
        StationEnd = e;
        Length = l;
        Id = id;
        Description = d;
    }

    public void RefreshShapes() { }

    public void RemoveRegion(Region region)
    {
        if (Regions.Remove(region))
        {
            region.Alignment = null;
        }
    }

    public void RemoveSameSections()
    {
        for (var i = CrossSections.Count - 1; i > 0; i--)
        {
            if (CrossSections[i - 1].Station == CrossSections[i].Station)
            {
                CrossSections.RemoveAt(i);
            }
        }

        GeometricCenter = null;
    }

    public void ResetImportsAndParts()
    {
        try
        {
            Import = true;
            foreach (var crossSection in CrossSections)
            {
                crossSection.Import = true;
                foreach (var designShape in crossSection.DesignShapes)
                {
                    designShape.Import = true;
                    designShape.Part = 0;
                }

                for (var i = crossSection.DesignShapes.Count - 1; i >= 0; i--)
                {
                    var shape = crossSection.DesignShapes[i];
                    if (crossSection.DesignShapes.Count(ds => ds.NameSide == shape.NameSide) > 1)
                    {
                        if (shape.CrossSectionPoints.Count < crossSection.DesignShapes.Max(ds => ds.CrossSectionPoints.Count))
                        {
                            crossSection.DesignShapes.RemoveAt(i);
                        }
                    }
                }
            }
        }
        catch
        {
            // ignored
        }
    }

    public void SplitDifferentParts()
    {
        try
        {
            var crossSection = CrossSections.Count > 0 ? CrossSections[0] : null;
            for (var i = 1; i < CrossSections.Count; i++)
            {
                var crossSection2 = CrossSections[i];
                if (crossSection2.Import)
                {
                    var count = crossSection2.DesignShapes.Count;
                    for (var j = 0; j < count; j++)
                    {
                        var shape = crossSection2.DesignShapes[j];
                        var pointCodesFlat = shape.PointCodesFlat;
                        var designShape = crossSection.DesignShapes.FirstOrDefault(ds => ds.NameSideSegment == shape.NameSideSegment);
                        var flag4 = !crossSection.Import;
                        var flag5 =
                            designShape != null && designShape.PointCodesFlat != pointCodesFlat && crossSection2.Station != crossSection.Station;
                        if (designShape == null || !designShape.Import || flag5 || crossSection2.Region != crossSection.Region)
                        {
                            flag4 = shape.Import;
                            if (flag5)
                            {
                                if (shape.Import && crossSection.DesignShapes.Count < crossSection2.DesignShapes.Count)
                                {
                                    ConnectSectionsShape(new DesignShape(designShape) { Import = false }, designShape, crossSection2, crossSection);
                                }
                                else if (designShape.Import)
                                {
                                    DesignShape designShape2 = new(shape) { Import = true };
                                    ConnectSectionsShape(designShape2, shape, crossSection, crossSection2);
                                    AddRange(crossSection2, shape, i);
                                    designShape2.Part = i;
                                }
                            }
                        }

                        if (!crossSection.Import)
                        {
                            AddRange(crossSection2, shape, i);
                            for (var k = i + 1; k < CrossSections.Count; k++)
                            {
                                var designShape3 = CrossSections[k].DesignShapes.FirstOrDefault(ds => ds.NameSideSegment == shape.NameSideSegment);
                                if (designShape3 != null)
                                {
                                    designShape3.Part = i;
                                }
                            }

                            shape.Part = i;
                        }
                    }
                }

                crossSection = crossSection2;
            }
        }
        catch
        {
            // ignored
        }
    }

    public void Transform(GeometryTransformations transformations)
    {
        foreach (var interval in CoordGeom.HorizonCurve)
        {
            interval.Transform(transformations);
        }

        StationStart *= transformations.ScaleFactor;
        StationEnd *= transformations.ScaleFactor;
        foreach (var region in Regions)
        {
            region.StartStation *= transformations.ScaleFactor;
            region.EndStation *= transformations.ScaleFactor;
        }

        foreach (var crossSection in CrossSections)
        {
            crossSection.Transform(transformations);
        }

        foreach (var profAlign in Profile.ProfileCurve)
        {
            profAlign.Transform(transformations);
        }

        GeometricCenter = null;
    }

    public void TransformByScale(double scale)
    {
        var point3D = GeometricCenter;
        var flag = point3D.LengthSquared3D != 0.0;
        GeometryTransformations geometryTransformations = new();
        if (flag)
        {
            geometryTransformations.Translation(-point3D.X, -point3D.Y, -point3D.Z);
        }

        geometryTransformations.Scale(scale);
        point3D *= scale;
        if (flag)
        {
            geometryTransformations.Translation(point3D.X, point3D.Y, point3D.Z);
        }

        Transform(geometryTransformations);
    }

    protected void AddRange(Part part, double start, double end, int i)
    {
        Range range = new() { Part = i };
        range.SetRange(start, end);
        part.AddRange(range);
    }

    protected Point3D CalcGeometricCenter(IEnumerable<CrossSection> sections, int count)
    {
        Point3D point3D = new();
        if (count != 0)
        {
            foreach (var p in sections)
            {
                point3D += p / count;
            }
        }

        return point3D;
    }

    protected void SetGeometricCenter()
    {
        if (CrossSections != null)
        {
            geometricCenter = CalcGeometricCenter(CrossSections, CrossSections.Count);
            return;
        }

        geometricCenter = new Point3D();
    }

    internal void AddRange(CrossSection section, DesignShape shape, int i)
    {
        var region = Regions.FirstOrDefault(item => item.Id == section.Region);
        if (region != null)
        {
            var part = region.Parts.FirstOrDefault(item => item.NameSideSegment == shape.NameSideSegment);
            var endStation = part.Ranges.Last().EndStation;
            if (section.Station > endStation)
            {
                AddRange(part, endStation, section.Station, i);
                return;
            }

            if (section.Station != endStation)
            {
                var startStation = part.Ranges.First().StartStation;
                if (section.Station < startStation)
                {
                    AddRange(part, section.Station, startStation, i);
                    return;
                }

                if (section.Station != startStation)
                {
                    part.Ranges.Last().EndStation = section.Station;
                    AddRange(part, section.Station, endStation, i);
                }
            }
        }
    }

    private void Init()
    {
        CrossSections = new List<CrossSection>();
        FeatureLines = new List<FeatureLine>();
        Regions = new List<Region>();
        SuperElevations = new List<SuperElevation>();
        CoordGeom = new CoordGeom();
        Profile = new Profile();
        geometricCenter = null;
        Import = true;
    }
}