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using System.Windows.Forms;
using XenAdmin.Commands;
using XenAdmin.Diagnostics.Checks;
using XenAPI;
using XenAdmin.Dialogs.VMDialogs;
using XenAdmin.Actions;
using XenAdmin.Actions.VMActions;
using System.Collections.Generic;


namespace XenAdmin.Diagnostics.Problems.HostProblem
{
    public class NotEnoughMem : HostProblem
    {
        private List<VM> VmsToSuspend = new List<VM>();
        private List<VM> VmsToShutdown = new List<VM>();

        public NotEnoughMem(Check check, Host host)
            : base(check,  host)
        {
        }

        public override string Description
        {
            get { return string.Format(Messages.UPDATES_WIZARD_NO_MEMORY, ServerName); }
        }

        protected override AsyncAction CreateAction(out bool cancelled)
        {
            using (var dlg = new SelectVMsToSuspendDialog(Server))
            {
                if (dlg.ShowDialog() == DialogResult.OK)
                {
                    cancelled = false;

                    VmsToSuspend = dlg.SelectedVMsToSuspend;
                    VmsToShutdown = dlg.SelectedVMsToShutdown;

                    return new SuspendAndShutdownVMsAction(Server.Connection, Server, VmsToSuspend, VmsToShutdown);
                }
            }

            cancelled = true;
            return null;
        }

        public override string HelpMessage
        {
            get { return Messages.SUSPEND_VMS; }
        }

        public override AsyncAction UnwindChanges()
        {
            return new ResumeAndStartVMsAction(Server.Connection, Server, VmsToSuspend, VmsToShutdown,VMOperationCommand.WarningDialogHAInvalidConfig,VMOperationCommand.StartDiagnosisForm);
        }


    }
}