using EventVisitorModels;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using System.Net.NetworkInformation;
using System.Net;
using System.Numerics;
using System.Text;
using System.Threading.Tasks;
using static System.Runtime.InteropServices.JavaScript.JSType;
using System.Xml.Linq;
using EventVisitorLogic.ViewModels;
using EventVisitorLogic.BindingModels;
using System.ComponentModel.DataAnnotations;

namespace EventVisitorDatabase.Entities
{
    public class EventEntity
    {
        public int Id { get; set; }
        [Required]
        public string Name { get; set; } = string.Empty;
        [Required]
        public DateTime Date { get; set; }
        [Required]
        public DateTime TimeStart { get; set; }
        public DateTime TimeEnd { get; set; }
        public string Description { get; set; } = string.Empty;
        [Required]
        public string Type { get; set; } = string.Empty;
        [Required]
        public string ContactPhone { get; set; } = string.Empty;
        public string ContactEmail { get; set; } = string.Empty;
        [Required]
        public string Address { get; set; } = string.Empty;
        [Required]
        public string City { get; set; } = string.Empty;
        [Required]
        public string Status { get; set; } = string.Empty;
        [Required]
        public int CountVisitors { get; set; }
        [Required]
        public int FreePlaces { get; set; }

        [ForeignKey("EventId")]
        public virtual List<OrganizerEvent> Organizers { get; set; } = new();

        private Dictionary<int, OrganizerEntity>? _eventOrginizers = null;
        [NotMapped]
        public Dictionary<int, OrganizerEntity> OrganizerEvent
        {
            get
            {
                if (_eventOrginizers == null)
                {
                    _eventOrginizers = Organizers
                        .ToDictionary(rec => rec.OrganizerId, rec => (rec.Organizer as OrganizerEntity));
                }
                return _eventOrginizers;
            }
        }

        public static EventEntity? Create(EventBindingModel model)
        {
            if (model == null)
            {
                return null;
            }
            return new EventEntity()
            {
                Id = (int)(model?.Id),
                Name = model.Name,
                Date = model.Date,
                TimeStart = model.TimeStart,
                TimeEnd = model.TimeEnd,
                Description = model.Description,
                Type = model.Type,
                ContactPhone = model.ContactPhone,
                ContactEmail = model.ContactEmail,
                Address = model.Address,
                City = model.City,
                Status = model.Status,
                CountVisitors = model.CountVisitors,
                FreePlaces = model.FreePlaces
            };
        }

        public static EventEntity Create(EventViewModel model)
        {
            return new EventEntity()
            {
                Id = model.Id,
                Name = model.Name,
                Date = model.Date,
                TimeStart = model.TimeStart,
                TimeEnd = model.TimeEnd,
                Description = model.Description,
                Type = model.Type,
                ContactPhone = model.ContactPhone,
                ContactEmail = model.ContactEmail,
                Address = model.Address,
                City = model.City,
                Status = model.Status,
                CountVisitors = model.CountVisitors,
                FreePlaces = model.FreePlaces
            };
        }

        public void UpdateOrganizer(EventVisitorDbContext context, EventBindingModel model)
        {
            var events = context.Events.First(x => x.Id == Id);
            foreach (var fs in model.OrganizerEvent)
            {
                context.OrganizerEvent.Add(new OrganizerEvent
                {
                    Event = events,
                    Organizer = context.Organizers.First(x => x.Id == fs.Value.Id)
                });
                context.SaveChanges();
            }
            _eventOrginizers = null;
        }

        public void Update(EventBindingModel model)
        {
            Name = model.Name;
            Date = model.Date;
            TimeStart = model.TimeStart;
            TimeEnd = model.TimeEnd;
            Description = model.Description;
            Type = model.Type;
            ContactPhone = model.ContactPhone;
            ContactEmail = model.ContactEmail;
            Address = model.Address;
            City = model.City;
            Status = model.Status;
            CountVisitors = model.CountVisitors;
            FreePlaces = model.FreePlaces;
        }

        public EventViewModel GetViewModel => new()
        {
            Id = Id,
            Name = Name,
            Date = Date,
            TimeStart = TimeStart,
            TimeEnd = TimeEnd,
            Description = Description,
            Type = Type,
            ContactPhone = ContactPhone,
            ContactEmail = ContactEmail,
            Address = Address,
            City = City,
            Status = Status,
            CountVisitors = CountVisitors,
            FreePlaces = FreePlaces,
        };
    }
}