using DevExpress.Mvvm;
using DevExpress.Xpo;
using Ips.Library.Basic;
using Ips.Library.DxpLib;
using Ips.Library.Entity;
using Ips.Sps.Tsks.Commands;
using Ips.Sps.TskStrategys;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Ips.Sps.Tsks
{
    public sealed class TskManager
    {
        public static readonly TskManager Default = new TskManager();

        private TskManager()
        {

        }

        public int SelectTskId { get; private set; }

        public int SelectSigId { get; private set; }

        public void SelectTsk(int tskId, int sigId)
        {
            this.SelectTskId = tskId;
            this.SelectSigId = sigId;
            var msg = new TskSelectedMessage()
            {
                TskId = tskId,
                SigId = sigId
            };
            Messenger.Default.Send(msg);
        }

        public void ResetAll()
        {
            using (var uow = new UnitOfWork())
            {
                var tskList = uow.Query<Tsk>().Where(m => m.State != TskState.Stop);
                tskList.ForEach(m => m.State = TskState.Stop);
                uow.CommitChanges();
            }
        }

        public bool CheckTskName(Tsk tsk, int tskId = 0)
        {
            bool exist = Session.DefaultSession.Query<Tsk>().Any(m => m.Name == tsk.Name && m.Oid != tsk.Oid);
            if (exist)
            {
                MsgHelper.ShowError("任务名已存在");
                return false;
            }
            return true;
        }

        public void UpdateTskState(int tskId, TskState state)
        {
            using (var uow = new UnitOfWork())
            {
                var tsk = uow.GetObjectByKey<Tsk>(tskId);
                if (tsk == null)
                {
                    throw new Exception("任务不存在！");
                }
                tsk.State = state;
                uow.CommitChanges();
            }
            Messenger.Default.Send(new TskStateChangedMessage(tskId, state));
        }
    }
}