using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;

namespace HC_APTBS.ViewModels.Dialogs
{
    /// <summary>
    /// ViewModel for the oil pump confirmation dialog shown before activating
    /// the oil pump relay. The operator must confirm that oil level and
    /// connections have been checked.
    /// Equivalent to the old <c>WAcceptOilTurnOn</c> dialog.
    /// </summary>
    public sealed partial class OilPumpConfirmViewModel : ObservableObject
    {
        // ── Dialog result ─────────────────────────────────────────────────────────

        /// <summary>True if the operator confirmed and accepted.</summary>
        public bool Accepted { get; private set; }

        // ── Checkbox ──────────────────────────────────────────────────────────────

        /// <summary>True when the "I have checked for leaks" checkbox is ticked.</summary>
        [ObservableProperty]
        [NotifyCanExecuteChangedFor(nameof(AcceptCommand))]
        private bool _leaksChecked;

        // ── Commands ──────────────────────────────────────────────────────────────

        /// <summary>Confirms the oil pump activation and closes the dialog.</summary>
        [RelayCommand(CanExecute = nameof(CanAccept))]
        private void Accept()
        {
            Accepted = true;
            RequestClose?.Invoke();
        }

        private bool CanAccept() => LeaksChecked;

        /// <summary>Cancels the oil pump activation and closes the dialog.</summary>
        [RelayCommand]
        private void Cancel()
        {
            Accepted = false;
            RequestClose?.Invoke();
        }

        // ── Events ────────────────────────────────────────────────────────────────

        /// <summary>Raised when the dialog should close itself.</summary>
        public event System.Action? RequestClose;
    }
}