using System.ComponentModel;
using System.Runtime.CompilerServices;

namespace Futonizer.Models;

/// <summary>
/// Represents one currently-running strip job for display in the "active jobs" list,
/// since multiple files can be stripped concurrently.
/// </summary>
public class JobProgressItem : INotifyPropertyChanged
{
    private int _percent;
    private double _megabytesPerSecond;

    public string FileName { get; set; } = string.Empty;

    /// <summary>
    /// Size of the source file in bytes, used as this job's weight when
    /// computing overall cumulative progress across all queued files.
    /// </summary>
    public long FileSizeBytes { get; set; }

    public int Percent
    {
        get => _percent;
        set
        {
            _percent = value;
            OnPropertyChanged();
            OnPropertyChanged(nameof(Display));
        }
    }

    public double MegabytesPerSecond
    {
        get => _megabytesPerSecond;
        set
        {
            _megabytesPerSecond = value;
            OnPropertyChanged();
            OnPropertyChanged(nameof(Display));
        }
    }

    public string Display => $"{FileName} - {Percent}% - {MegabytesPerSecond:F1} MB/s";

    public event PropertyChangedEventHandler? PropertyChanged;

    private void OnPropertyChanged([CallerMemberName] string? name = null)
    {
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(name));
    }
}