monorepo/LCU.API.Internal.OnlineLoanApp/CRIF.ACTion/Services/Landmark/SourceChannel/LandmarkSourceChannelLookupService.cs

using System.Collections.ObjectModel;
using CRIF.ACTion.Configuration;
using Landmark.OLA.Models.Loan.Enums;

namespace CRIF.ACTion.Services.Landmark.SourceChannel
{
    public class LandmarkSourceChannelLookupService : ISourceChannelLookupService
    {
        private readonly CrifSettings _settings;
        private ReadOnlyDictionary<LoanType, int> _loanTypeToSourceChannel;

        public LandmarkSourceChannelLookupService(CrifSettings settings)
        {
            _settings = settings;

            ConfigureMapping();
        }

        private void ConfigureMapping()
        {
            var mapping = new Dictionary<LoanType, int>
            {
                {LoanType.CC_CashBack, _settings.SourceChannels.CreditCardSourceChannelId},
                {LoanType.CC_Rewards, _settings.SourceChannels.CreditCardSourceChannelId},
                {LoanType.CC_Secure, _settings.SourceChannels.CreditCardSourceChannelId},
                {LoanType.CC_Student, _settings.SourceChannels.CreditCardSourceChannelId},
            };

            _loanTypeToSourceChannel = new ReadOnlyDictionary<LoanType, int>(mapping);
        }

        public int GetSourceChannelByLoanType(LoanType loanType)
        {
            var channelId = _loanTypeToSourceChannel.TryGetValue(loanType, out int foundValue)
                ? foundValue : _settings.SourceChannels.DefaultSourceChannelId;

            return channelId;
        }
    }
}