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

namespace XenAdmin.Wizards.PatchingWizard
{
    class UpdateProgressBackgroundWorker : BackgroundWorker
    {
        private readonly int _actionsCount;
        public List<HostPlanActions> HostActions { get; private set; }
        public List<PlanAction> FinalActions { get; private set; }
        public List<PlanAction> CleanupActions { get; private set; }
        public readonly List<PlanAction> DoneActions = new List<PlanAction>();
        public readonly List<PlanAction> InProgressActions = new List<PlanAction>();
        public string Name { get; set; }

        public UpdateProgressBackgroundWorker(List<HostPlanActions> planActions, List<PlanAction> finalActions)
        {
            HostActions = planActions;
            FinalActions = finalActions;
            CleanupActions = finalActions.Where(a => a is RemoveUpdateFileFromMasterPlanAction).ToList();

            _actionsCount = HostActions.Sum(t => t.InitialPlanActions.Count + t.UpdatesPlanActions.Count + t.DelayedActions.Count) + FinalActions.Count;

        }

        public int ActionsCount
        {
            get { return _actionsCount; }
        }

        public new void CancelAsync()
        {
            if (HostActions != null)
                HostActions.ForEach(ha =>
                {
                    var cur = ha;
                    cur.InitialPlanActions.ForEach(pa =>
                    {
                        if (!pa.IsComplete)
                            pa.Cancel();
                    });

                    cur.UpdatesPlanActions.ForEach(pa =>
                    {
                        if (!pa.IsComplete)
                            pa.Cancel();
                    });
                });

            base.CancelAsync();
        }
    }

    public struct HostPlanActions
    {
        public XenAPI.Host Host;
        public List<PlanAction> InitialPlanActions;
        public List<PlanAction> UpdatesPlanActions;
        public List<PlanAction> DelayedActions;

        public HostPlanActions(XenAPI.Host host)
        {
            Host = host;
            InitialPlanActions = new List<PlanAction>();
            UpdatesPlanActions = new List<PlanAction>();
            DelayedActions = new List<PlanAction>();
        }
    }
}