using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.Core;
using Tango.PMR.Printing;

namespace Tango.Integration.Operation
{
    public class HeadCleaningHandler : ExtendedObject
    {
        private Action _abortAction;

        public event EventHandler<HeadCleaningStatusChangedEventArgs> StatusChanged;
        public event EventHandler<Exception> Failed;
        public event EventHandler Completed;

        private StartHeadCleaningResponse _status;
        public StartHeadCleaningResponse Status
        {
            get { return _status; }
            set { _status = value; RaisePropertyChangedAuto(); }
        }

        public HeadCleaningHandler(Action abortAction)
        {
            _abortAction = abortAction;

            Status = new StartHeadCleaningResponse()
            {
                Total = 100,
                Progress = 0,
                Status = "Initializing..."
            };
        }

        internal void RaiseStatusChanged(StartHeadCleaningResponse status)
        {
            OnStatusChanged(status);
        }

        internal void RaiseFailed(Exception ex)
        {
            OnFailed(ex);
        }

        internal void RaiseCompleted()
        {
            OnCompleted();
        }

        private void OnStatusChanged(StartHeadCleaningResponse status)
        {
            Status = status;
            StatusChanged?.Invoke(this, new HeadCleaningStatusChangedEventArgs()
            {
                Status = status
            });
        }

        private void OnCompleted()
        {
            Completed?.Invoke(this, new EventArgs());
        }

        private void OnFailed(Exception ex)
        {
            Failed?.Invoke(this, ex);
        }

        public Task Abort()
        {
            return Task.Factory.StartNew(() => 
            {
                _abortAction.Invoke();
            });
        }
    }
}