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

namespace LCU.API.Collections.RepoApi.Domain.AlertChecker
{
    public class DocumentNotFoundChecker : IAlertChecker
    {
        private readonly string _document;
        private readonly string _ilActionCode;
        private readonly string _status;
        private readonly string _wiActionCode;
        private const string StateWisconsin = "WI";
        private const string StateIllinois = "IL";

        public DocumentNotFoundChecker(string document, string wiActionCode, string ilActionCode = null,
            string status = null)
        {
            _document = document;
            _wiActionCode = wiActionCode.Trim().ToUpper();
            _ilActionCode = ilActionCode?.Trim().ToUpper();
            _status = status?.Trim().ToUpper();
        }

        public List<EventAlert> CheckForAlert(RepoAccountProcessingSlip slip)
        {
            if (slip.Letters == null || slip.Member?.Address == null ||
                (_status != null && slip.UpdatedRepoAccount.Status != _status ||
                 slip.UpdatedRepoAccount.Bankruptcy != null))
            {
                return null;
            }

            var isLetterMissing = false;
            if (slip.Member.Address.State == StateWisconsin)
            {
                isLetterMissing = slip.Letters.ToList().Find(x => x.ActionCode == _wiActionCode) == null;
            }
            else if (_ilActionCode != null && slip.Member.Address.State == StateIllinois)
            {
                isLetterMissing = slip.Letters.ToList().Find(x => x.ActionCode == _ilActionCode) == null;
            }

            if (isLetterMissing)
            {
                return new List<EventAlert>
                {
                    new EventAlert()
                    {
                        RepoId = slip.UpdatedRepoAccount.RepoId,
                        AccountNo = slip.UpdatedRepoAccount.AccountNo,
                        Message = _document + " Not Found",
                        CreatedBy = "Batch",
                        DateAdded = DateTime.Now
                    }
                };
            }

            return null;
        }
    }
}