using System;
using System.Collections.Generic;
using System.Linq;
using LCU.API.Collections.RepoApi.Domain.Extensions;
using LCU.API.Collections.RepoApi.Domain.Processing;
using LCU.API.Collections.RepoApi.Extensions;
using LCU.Shared.Collections.RepoApiLib.Models;

namespace LCU.API.Collections.RepoApi.Domain.AlertChecker
{
    public class RepoNotMovedChecker : IAlertChecker
    {
        private readonly int _dayCount;
        private const string RepoStatus = "REPO";
        private const int DaysBeforeSendEmail = 14;
        private const string EmailDestination = "RepoManagerAdmin@landmarkcu.com";

        public RepoNotMovedChecker(int dayCount = 30)
        {
            _dayCount = dayCount;
        }

        public List<EventAlert> CheckForAlert(RepoAccountProcessingSlip slip)
        {
            var daysInStatus = slip.UpdatedRepoAccount.GetDaysInStatus(RepoStatus);
            if (slip.UpdatedRepoAccount.Status.ToUpper() != RepoStatus ||
                slip.UpdatedRepoAccount.Collaterals == null || !slip.UpdatedRepoAccount.Collaterals.Any()
                || daysInStatus < _dayCount)
            {
                return null;
            }

            foreach (var collateral in slip.UpdatedRepoAccount.Collaterals)
            {
                if (collateral.AuctionAssignmentToCollaterals != null &&
                    collateral.AuctionAssignmentToCollaterals.Any())
                {
                    var assignment = collateral.AuctionAssignmentToCollaterals
                        .Where(x => x.AuctionAssignment != null && x.AuctionAssignment.DateSubmitted == null)
                        .ToList();

                    if (assignment.Any() && daysInStatus >= _dayCount)
                    {
                        return new List<EventAlert>
                        {
                            new EventAlert()
                            {
                                RepoId = slip.UpdatedRepoAccount.RepoId,
                                AccountNo = slip.UpdatedRepoAccount.AccountNo,
                                Message = "Repo Not Moved",
                                CreatedBy = "Batch",
                                DateAdded = DateTime.Now,
                                EmailRecipient = daysInStatus == DaysBeforeSendEmail
                                    ? EmailDestination
                                    : null,
                                EmailBody = daysInStatus == DaysBeforeSendEmail
                                    ? string.Format("{0} Account status REPO, Not Moved for extended time.", slip.UpdatedRepoAccount.AccountNo)
                                    : null
                            }
                        };
                    }
                }
            }

            return null;
        }
    }
}