using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.BL.Enumerations;
using Tango.PMR.Diagnostics;

namespace Tango.BL.Entities
{
    [Serializable]
    public partial class MachinesEvent : MachinesEventBase
    {
        private static Dictionary<EventTypes, EventType> _eventTypesGuids;
        private static bool _eventFactoryInitialized;

        private void InitializeEventFactory()
        {
            if (!_eventFactoryInitialized)
            {
                _eventFactoryInitialized = true;

                _eventTypesGuids = new Dictionary<EventTypes, EventType>();

                foreach (var type in ObservablesStaticCollections.Instance.EventTypes)
                {
                    _eventTypesGuids.Add((EventTypes)type.Code, type);
                }
            }
        }

        public MachinesEvent(Event pmrEvent) : this()
        {
            InitializeEventFactory();

            DateTime = DateTime.UtcNow;
            Description = pmrEvent.Message;

            if (_eventTypesGuids.ContainsKey((EventTypes)pmrEvent.Type))
            {
                EventType = _eventTypesGuids[(EventTypes)pmrEvent.Type];
            }
            else
            {
                EventType = _eventTypesGuids[EventTypes.APPLICATION_INFORMATION];
            }
        }

        [NotMapped]
        public int Code
        {
            get { return EventType.Code; }
        }

        [NotMapped]
        public String Name
        {
            get { return EventType.Name; }
        }

        [NotMapped]
        public EventTypes Type
        {
            get { return EventType.Type; }
        }

        [NotMapped]
        public EventTypeCategories Category
        {
            get { return (EventTypeCategories)EventType.EventCategory; }
        }

        [NotMapped]
        public EventTypeGroups Group
        {
            get { return (EventTypeGroups)EventType.EventGroup; }
        }

        [NotMapped]
        public EventTypeNotificationTimes NotificationTime
        {
            get { return EventType.NotificationTime; }
        }

        [NotMapped]
        public IReadOnlyCollection<EventTypeActions> Actions
        {
            get { return EventType.Actions; }
        }

        [NotMapped]
        public DateTime ResolvedDateTime { get; set; }

        [NotMapped]
        public TimeSpan Duration
        {
            get { return ResolvedDateTime - DateTime; }
        }

        private User _eventUser;
        [NotMapped]
        [JsonIgnore]
        public User EventUser
        {
            get { return _eventUser; }
            set { _eventUser = value; RaisePropertyChangedAuto(); }
        }

        [JsonIgnore]
        [NotMapped]
        public EventType RelatedEventType { get; set; }

        protected override void OnUserChanged(User user)
        {
            base.OnUserChanged(user);

            if (user != null)
            {
                EventUser = user;
            }
        }

        public bool IsJobProgressEvent()
        {
            return 
                Type == EventTypes.JOB_STARTED || 
                Type == EventTypes.JOB_ABORTED || 
                Type == EventTypes.JOB_COMPLETED || 
                Type == EventTypes.JOB_FAILED;
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="MachinesEvent" /> class.
        /// </summary>
        public MachinesEvent() : base()
        {

        }
    }
}