using LCU.API.Collections.CollectionsApiLib.Models;
using LCU.API.Collections.RepoApi.Exceptions;
using Serilog;

namespace LCU.API.Collections.RepoApi.Services
{
    public class StatusService
    {
        /**
         * Convert a Stage from a case to a RepoAccount status.
         */
        public static string ConvertStatus(RepoStatus oldStage)
        {
            switch (oldStage)
            {
                case RepoStatus.PSKP: return "PSKP";
                case RepoStatus.REHO: return "REHO";
                case RepoStatus.RECA: return "RECA";
                case RepoStatus.O4R: return "O4R";
                case RepoStatus.REPO: return "REPO";
                case RepoStatus.REDEEMED: return "REDEEMED";
                case RepoStatus.SOLD: return "SOLD";
                case RepoStatus.NOTACTIVE: return "SOLD";
                case RepoStatus.INELIGIBLE: throw new IneligibleAccountException("CaseStage", "Not a Repo Case Stage.");
                // case RepoStatus.UNKNOWN is meant to fall through to below.
            }

            Log.Fatal($"Attempt to convert status {oldStage}, but was not known.");
            // The account is not necessarily ineligible, but is missing a requirement, the stage.
            // This covers the problem of Temenos not providing a Case Stage Change event, and only
            // a Case Creation event. The stage won't be available yet, so throw a MissingRequirement
            // causing it to be retried on the hour - it should then run fine.
            throw new MissingRequirementException("Case Stage", $"A valid case stage is required, {oldStage} is not valid.");
        }
    }
}