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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using XenAdmin.Wizards.PatchingWizard.PlanActions;
using XenAPI;

namespace XenAdmin.Wizards.PatchingWizard
{
    class UpdateProgressBackgroundWorker : BackgroundWorker
    {
        private readonly int _actionsCount;

        public List<PlanAction> PlanActions { get; private set; }
        public Dictionary<Host, List<PlanAction>> DelayedActionsByHost {get; private set; }
        public List<PlanAction> FinalActions { get; private set; }

        private readonly List<string> avoidRestartHosts = new List<string>();
        
        /// <summary>
        /// This list lists uuids of hosts that does not need to be restarted
        /// </summary>
        public List<string> AvoidRestartHosts
        {
            get
            {
                return avoidRestartHosts;
            }
        }

       
        public UpdateProgressBackgroundWorker(List<PlanAction> planActions,
            Dictionary<Host, List<PlanAction>> delayedActionsByHost, List<PlanAction> finalActions)
        {
            PlanActions = planActions;
            DelayedActionsByHost = delayedActionsByHost;
            FinalActions = finalActions;
            _actionsCount = PlanActions.Count + DelayedActionsByHost.Sum(kvp => kvp.Value.Count) + FinalActions.Count;
        }

        public int ActionsCount
        {
            get { return _actionsCount; }
        }

        public new void CancelAsync()
        {
            if (PlanActions != null)
                PlanActions.ForEach(pa => 
                {
                    if (!pa.IsComplete)
                        pa.Cancel();
                });

            base.CancelAsync();
        }
    }
}