prs/prs.server/Engines/GPS/GeoJSONFile.cs

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Globalization;
using System.IO;
using System.Linq;
using InABox.Core;

namespace PRSServer.Engines.GPS;

public class GeoJSONCrsProperties
{
    public string Name { get; set; }
}

public class GeoJSONCrs
{
    public string Type { get; set; }
    public GeoJSONCrsProperties Properties { get; set; }
}

public class GeoJSONFeatureGeometry
{
    public string Type { get; set; }
    public List<List<List<List<float>>>> Coordinates { get; set; }

    public List<PointF> Points()
    {
        var result = new List<PointF>();
        var list = Coordinates?.FirstOrDefault()?.FirstOrDefault() ?? new List<List<float>>();
        foreach (var item in list)
        {
            if (item.Count == 2)
                result.Add(new PointF(item[0], item[1]));
        }
        return result;
    }
    
    public Tuple<PointF,PointF> BoundingBox()
    {
        float minX = float.MaxValue, minY = float.MaxValue, maxX = float.MinValue, maxY = float.MinValue;
        var points = Points();
        foreach (var point in points)
        {
            if (point.X < minX) minX = point.X;
            if (point.X > maxX) maxX = point.X;
            if (point.Y < minY) minY = point.Y;
            if (point.Y > maxY) maxY = point.Y;
        }
        return new Tuple<PointF,PointF>(new PointF(minX, minY), new PointF(maxX, maxY));
    }
}

public class GeoJSONFeatureProperties
{
    public int? Land_ID { get; set; }
    public string? Road_Number_type { get; set; }
    public string? Road_Number_1 { get; set; }
    public string? Road_Number_2 { get; set; }
    public string? Lot_Number { get; set; }
    public string? Road_Name { get; set; }
    public string? Road_Type { get; set; }
    public string? Road_Suffix { get; set; }
    public string? Locality { get; set; }
    public string? View_Scale { get; set; }
    public double? ST_Area_Shape_ { get; set; }
    public double? ST_Perimeter_Shape_ { get; set; }

    public String Street()
    {
        List<String> result = new List<string>();
        if (string.IsNullOrWhiteSpace(Lot_Number))
        {
            if (!string.IsNullOrWhiteSpace(Road_Number_2))
                result.Add($"{Road_Number_1}/{Road_Number_2}");
            else
                result.Add(Road_Number_1);
        }
        else
            result.Add($"LOT {Lot_Number}");
        result.Add(Road_Name);
        result.Add(Road_Type);
        
        return CultureInfo.CurrentCulture.TextInfo.ToTitleCase(string.Join(" ", result).ToLower());
    }

    public String Suburb() => CultureInfo.CurrentCulture.TextInfo.ToTitleCase(Locality?.ToLower() ?? "");
    
    public String State() => "";

    public String Country => "";

}

public class GeoJSONFeature
{
    public string? Type { get; set; }

    public GeoJSONFeatureProperties? Properties { get; set; }
    
    public GeoJSONFeatureGeometry? Geometry { get; set; }
    
}

public class GeoJSONFile
{
    public string? Type { get; set; }
    public string? Name { get; set; }
    public GeoJSONCrs? Crs { get; set; }
    public List<GeoJSONFeature>? Features { get; set; }

    public static GeoJSONFile? Load(string filename)
    {
        var serializer = new Newtonsoft.Json.JsonSerializer();
        using var sr = new StreamReader(filename);
        using var jtr = new Newtonsoft.Json.JsonTextReader(sr);
        var geojson = serializer.Deserialize<GeoJSONFile>(jtr);
        return geojson;
    }
}