prs/prs.desktop/Panels/Maps/MapViewModel.cs

using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Windows;
using System.Windows.Media;
using InABox.WPF;
using net.sf.mpxj;
using Syncfusion.UI.Xaml.Maps;

namespace PRSDesktop;

public enum MapViewType
{
    Current,
    History
}

public class MapViewModel : DependencyObject
{
    
    private readonly List<MapMarker> _markers = new();
    private readonly List<MapMarker> _waypoints = new();
    private MapMarker? _selected;

    public MapViewModel()
    {
        Markers = new ObservableCollection<MapMarker>();
        WayPoints = new ObservableCollection<Point>();
    }

    public ObservableCollection<MapMarker> Markers { get; }
    public ObservableCollection<Point> WayPoints { get; }
    
    static readonly DependencyProperty ViewProperty =
        DependencyProperty.Register(
            nameof(View),
            typeof(MapViewType),
            typeof(MapViewModel));

    public MapViewType View
    {
        get => (MapViewType)GetValue(ViewProperty);
        set
        {
            SetValue(ViewProperty, value);
            Refresh();
        }
    }

    public MapMarker Selected
    {
        get => _selected;
        set
        {
            _selected = value;
            Refresh();
        }
    }

    public void AddWayPoint(MapMarker waypoint)
    {
        _waypoints.Add(waypoint);
    }

    public void AddMarker(MapMarker marker, bool refresh = false)
    {
        _markers.Add(marker);
        if (refresh)
            Refresh();
    }

    public void Clear()
    {
        _selected = null;
        _markers.Clear();
        _waypoints.Clear();
        Refresh();
    }

    public void Refresh()
    {
        Markers.Clear();
        WayPoints.Clear();
        if (View == MapViewType.Current)
        {
            foreach (var marker in _markers)
            {
                marker.Background = new SolidColorBrush(marker == _selected ? Colors.Yellow : Colors.Orange);
                if (marker != _selected)
                    Markers.Add(marker);
            }
            if (_selected != null)
                Markers.Add(_selected);
        }
        else if (_selected != null)
        {
            foreach (var waypoint in _waypoints)
            {
                Markers.Add(waypoint);
                WayPoints.Add(new Point(double.Parse(waypoint.Longitude), double.Parse(waypoint.Latitude)));
            }
        }


    }
}