Models/DataPacket.cs - main - latin/WialonIPSServer

Models/DataPacket.cs
104 строки3 KB
latin
Initial commit: Wialon IPS Server implementation
26 ноя 2025, 15:13
26 ноя 2025, 15:138b086c6
namespace WialonIPSServer.Models;

/// <summary>
/// Модель пакета с данными (SD или D)
/// Формат: Date;Time;Lat1;Lat2;Lon1;Lon2;Speed;Course;Alt;Sats
/// </summary>
public class DataPacket
{
    public string Date { get; set; } = string.Empty; // DDMMYY
    public string Time { get; set; } = string.Empty; // HHMMSS
    public string Lat1 { get; set; } = string.Empty; // GGMM.MM
    public string Lat2 { get; set; } = string.Empty; // N или S
    public string Lon1 { get; set; } = string.Empty; // GGGMM.MM
    public string Lon2 { get; set; } = string.Empty; // E или W
    public int Speed { get; set; } // км/ч
    public int Course { get; set; } // градусы
    public int Altitude { get; set; } // метры
    public int Satellites { get; set; } // количество спутников

    /// <summary>
    /// Преобразует координаты в десятичный формат
    /// </summary>
    public double? GetLatitude()
    {
        if (string.IsNullOrEmpty(Lat1) || string.IsNullOrEmpty(Lat2))
            return null;

        // Формат: GGMM.MM
        if (Lat1.Length < 4)
            return null;

        if (!int.TryParse(Lat1.Substring(0, 2), out int degrees))
            return null;

        if (!double.TryParse(Lat1.Substring(2), System.Globalization.NumberStyles.Float, 
            System.Globalization.CultureInfo.InvariantCulture, out double minutes))
            return null;

        double decimalDegrees = degrees + (minutes / 60.0);
        
        if (Lat2 == "S")
            decimalDegrees = -decimalDegrees;

        return decimalDegrees;
    }

    /// <summary>
    /// Преобразует долготу в десятичный формат
    /// </summary>
    public double? GetLongitude()
    {
        if (string.IsNullOrEmpty(Lon1) || string.IsNullOrEmpty(Lon2))
            return null;

        // Формат: GGGMM.MM
        if (Lon1.Length < 5)
            return null;

        if (!int.TryParse(Lon1.Substring(0, 3), out int degrees))
            return null;

        if (!double.TryParse(Lon1.Substring(3), System.Globalization.NumberStyles.Float,
            System.Globalization.CultureInfo.InvariantCulture, out double minutes))
            return null;

        double decimalDegrees = degrees + (minutes / 60.0);
        
        if (Lon2 == "W")
            decimalDegrees = -decimalDegrees;

        return decimalDegrees;
    }

    public static DataPacket? Parse(string message)
    {
        var parts = message.Split(';');
        if (parts.Length < 10)
            return null;

        var packet = new DataPacket
        {
            Date = parts[0],
            Time = parts[1],
            Lat1 = parts[2],
            Lat2 = parts[3],
            Lon1 = parts[4],
            Lon2 = parts[5]
        };

        int.TryParse(parts[6], out int speed);
        packet.Speed = speed;

        int.TryParse(parts[7], out int course);
        packet.Course = course;

        int.TryParse(parts[8], out int alt);
        packet.Altitude = alt;

        int.TryParse(parts[9], out int sats);
        packet.Satellites = sats;

        return packet;
    }
}