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

namespace IBKRTrader.Core.Workers;

/// <summary>
/// ViewModel-Objekt für eine Zeile in dgv_workerlist.
/// Implementiert INotifyPropertyChanged für automatisches DataGridView-Binding.
/// </summary>
public class WorkerInfo : INotifyPropertyChanged
{
    public event PropertyChangedEventHandler? PropertyChanged;

    private bool          _active;
    private string        _type        = "";
    private string        _module      = "";
    private string        _workerName  = "";
    private DateTime?     _lastRuntime;
    private DateTime?     _nextRuntime;
    private string        _runEvery    = "";
    private string        _info        = "";
    private WorkerStatus  _status      = WorkerStatus.Idle;

    // ─── Properties ───────────────────────────────────────────────────────────

    public bool         Active      { get => _active;      set => Set(ref _active,      value); }
    public string       Type        { get => _type;        set => Set(ref _type,        value); }
    public string       Module      { get => _module;      set => Set(ref _module,      value); }
    public string       WorkerName  { get => _workerName;  set => Set(ref _workerName,  value); }
    public DateTime?    LastRuntime { get => _lastRuntime; set => Set(ref _lastRuntime, value); }
    public DateTime?    NextRuntime { get => _nextRuntime; set => Set(ref _nextRuntime, value); }
    public string       RunEvery    { get => _runEvery;    set => Set(ref _runEvery,    value); }
    public string       Info        { get => _info;        set => Set(ref _info,        value); }

    /// <summary>Interner Status – wird nicht direkt als DGV-Spalte verwendet,
    /// aber steuert die Info-Spalte.</summary>
    public WorkerStatus Status
    {
        get => _status;
        set
        {
            if (!Set(ref _status, value)) return;
            // Info-Text automatisch synchronisieren
            if (value == WorkerStatus.Idle && string.IsNullOrWhiteSpace(_info))
                Info = "Bereit";
        }
    }

    // ─── Hilfsmethode ─────────────────────────────────────────────────────────

    private bool Set<T>(ref T field, T value, [CallerMemberName] string? prop = null)
    {
        if (EqualityComparer<T>.Default.Equals(field, value)) return false;
        field = value;
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(prop));
        return true;
    }
}