namespace FieldLogger.Models;

/// <summary>
/// Info string the UM receiver sends the first time push-button data logging is enabled.
/// </summary>
public sealed class UmDeviceInfo
{
    public string Manufacturer { get; init; } = "";
    public string ModelName { get; init; } = "";
    public string SerialNumber { get; init; } = "";
    public string BootloaderVersion { get; init; } = "";
    public string SoftwareVersion { get; init; } = "";
    public string ManufactureDate { get; init; } = "";
    public string CalibrationDate { get; init; } = "";
    public double HourCount { get; init; }
    public int PbdlSchema { get; init; }
    public string RawText { get; init; } = "";

    /// <summary>
    /// Parses the 10-field info string (9 parameters followed by "OK").
    /// Returns null if the line does not match.
    /// </summary>
    public static UmDeviceInfo? TryParse(string line)
    {
        var fields = line.Trim().Split(',');
        if (fields.Length < 10 || !fields[^1].Trim().Equals("OK", StringComparison.OrdinalIgnoreCase))
            return null;

        // Serial number is 9 digits; use it to distinguish from other OK-terminated responses.
        if (fields[2].Trim().Length < 6)
            return null;

        double.TryParse(fields[7], System.Globalization.NumberStyles.Float,
            System.Globalization.CultureInfo.InvariantCulture, out var hours);
        int.TryParse(fields[8], out var schema);

        return new UmDeviceInfo
        {
            Manufacturer = fields[0].Trim(),
            ModelName = fields[1].Trim(),
            SerialNumber = fields[2].Trim(),
            BootloaderVersion = fields[3].Trim(),
            SoftwareVersion = fields[4].Trim(),
            ManufactureDate = fields[5].Trim(),
            CalibrationDate = fields[6].Trim(),
            HourCount = hours,
            PbdlSchema = schema,
            RawText = line.Trim(),
        };
    }
}