using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations.Schema;
using System.Globalization;
using System.Linq;
using taloyhtio.idp.parser.common.domain;
using taloyhtio.idp.parser.common.events;
//using webapi.Domain.Events;
//using webapi.Domain.SeedWork;

namespace taloyhtio.idp.parser.common.model
{
    [Table("mdbFlats")]
    public class Flat : Entity, IAggregateRoot
    {
        public Flat() { }

        public Flat(Guid taloyhtioPMCId, string pmsCondoName, string flatTitle, Guid id)
        {
            PMCTaloyhtioId = taloyhtioPMCId;
            CondoPMS = pmsCondoName;
            FlatTitle = flatTitle;

            Id = id;
            PartitionKey = PMCTaloyhtioId.ToString();
            //RowKey = Id.ToString();
        }

        /// <summary>
        /// Guid for identifying the flat
        /// </summary>
        //public Guid Id { get; set; }

        /// <summary>
        /// i.e.
        /// Church street 4 A 1 (usually high-rise has this form) 
        /// Church street 4 A(usually terraced house has this form, letter actually points to a flat)
        /// NOTE: flat titles which are loaded to AzureDB table should be the same as used in PMS
        /// </summary>
        public string FlatTitle { get; set; }

        /// <summary>
        /// Parent Condo of the flat in the same format as returned from PMS
        /// </summary>
        public string CondoPMS { get; set; }

        /// <summary>
        /// Taloyhtio PMC Id of condo to which current flat belongs to
        /// </summary>
        public Guid PMCTaloyhtioId { get; set; }

        List<FlatUser> _users = new List<FlatUser>();
        public List<FlatUser> Users => _users;

        /// <summary>
        ///Depending on actual method which will be used for loading flats to AzureDB (see below) there also may be information about users which live in each flat
        /// </summary>
        public string FlatUsers
        {
            get { return _users == null || !_users.Any() ? null : JsonConvert.SerializeObject(_users); }
            set
            {
                try
                {
                    _users = JsonConvert.DeserializeObject<List<FlatUser>>(value);
                }
                catch (Exception)
                {
                    _users = new List<FlatUser>();
                }
            }
        }

        public void SendApproval(Guid pmcId, Guid userId)
        {
            AddDomainEvent(new UserMappingApproveDomainEvent(pmcId, this.Id, userId));
        }

        public void AssignUser(Guid userId, string pmsUserName = null)
        {
            AddDomainEvent(new AddUserToFlatMappingDomainEvent(this, userId, pmsUserName));
        }

        /// <summary>
        /// Revoke user to flat mapping
        /// </summary>
        public void RevokeUserAssignment(string userName, Guid condoId)
        {
            AddDomainEvent(new RevokeUserAssignmentDomainEvent(userName, condoId, this));
        }

        public bool CompareUsersByPMSUserName(string pmsUserName)
        {
            if (!Users?.Any() ?? false) return false;

            foreach (var user in Users)
            {
                //Check by full matched name
                if (!string.IsNullOrEmpty(user.DisplayName) && user.DisplayName.Equals(pmsUserName, StringComparison.InvariantCultureIgnoreCase))
                {
                    return true;
                }
            }
            return false;
        }

        public bool CompareUsersByPIN(string pin, string userFirstName, string userLastName, DateTime? userBirthday, out string matchedPMSUserName)
        {
            matchedPMSUserName = null;

            if (!Users?.Any() ?? true) return false;

            foreach (var user in Users)
            {
                //Check by full matched PIN
                if (!string.IsNullOrEmpty(user.PIN) && user.PIN.Equals(pin, StringComparison.InvariantCultureIgnoreCase))
                {
                    matchedPMSUserName = user.DisplayName;
                    return true;
                }

                //Check by partly matched PIN
                //var pmsUserName = user.DisplayName;
                var pinParts = user.PIN.Split('-')?[0];
                if (DateTime.TryParseExact(pinParts, "ddMMyy", CultureInfo.InvariantCulture, DateTimeStyles.None, out var userPINBirthDate))
                {
                    var result = (userBirthday.HasValue && userPINBirthDate.Date == userBirthday.Value.Date);
                    if (result)
                    {
                        var userNameParts = userFirstName.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
                        var pmsLastName = userNameParts.Last();
                        for (var i = 0; i < userNameParts.Count() - 1; i++)
                        {
                            var pmsFirstName = userNameParts[i];
                            var userDispalyName = $"{userFirstName} {userLastName}";
                            if (userDispalyName.Equals($"{pmsFirstName} {pmsLastName}", StringComparison.InvariantCultureIgnoreCase) ||
                               (userDispalyName.Equals($"{pmsLastName} {pmsFirstName}", StringComparison.InvariantCultureIgnoreCase)))
                            {
                                matchedPMSUserName = user.DisplayName;
                                return true;
                            }
                        }
                    }
                }
            }
            return false;
        }
    }
}