using SptCommon.Annotations;
using Core.Generators;
using Core.Models.Eft.Ragfair;
using Core.Models.Enums;
using Core.Models.Spt.Config;
using Core.Models.Utils;
using Core.Services;

namespace Core.Servers
{
    [Injectable]
    public class RagfairServer
    {
        protected ISptLogger<RagfairServer> _logger;
        protected RagfairOfferService _ragfairOfferService;
        protected RagfairCategoriesService _ragfairCategoriesService;
        protected RagfairRequiredItemsService _ragfairRequiredItemsService;
        protected LocalisationService _localisationService;
        protected RagfairOfferGenerator _ragfairOfferGenerator;
        protected ConfigServer _configServer;
        protected RagfairConfig _ragfairConfig;

        public RagfairServer(
            ISptLogger<RagfairServer> logger,
            RagfairOfferService ragfairOfferService,
            RagfairCategoriesService ragfairCategoriesService,
            RagfairRequiredItemsService ragfairRequiredItemsService,
            LocalisationService localisationService,
            RagfairOfferGenerator ragfairOfferGenerator,
            ConfigServer configServer)
        {
            _logger = logger;
            _ragfairOfferService = ragfairOfferService;
            _ragfairCategoriesService = ragfairCategoriesService;
            _ragfairRequiredItemsService = ragfairRequiredItemsService;
            _localisationService = localisationService;
            _ragfairOfferGenerator = ragfairOfferGenerator;
            _configServer = configServer;

            _ragfairConfig = _configServer.GetConfig<RagfairConfig>();
        }

        public async Task Load(){
            _logger.Info(_localisationService.GetText("ragfair-generating_offers"));
            await _ragfairOfferGenerator.GenerateDynamicOffers();
            await Update();
        }

        public async Task Update()
        {
            _ragfairOfferService.ExpireStaleOffers();

            // Generate trader offers
            var traders = GetUpdateableTraders();
            foreach (var traderId in traders) {
                // Edge case - skip generating fence offers
                if (traderId == Traders.FENCE)
                {
                    continue;
                }

                if (_ragfairOfferService.TraderOffersNeedRefreshing(traderId))
                {
                    _ragfairOfferGenerator.GenerateFleaOffersForTrader(traderId);
                }
            }

            // Regenerate expired offers when over threshold limit
            if (_ragfairOfferService.GetExpiredOfferCount() >= _ragfairConfig.Dynamic.ExpiredOfferThreshold)
            {
                var expiredAssortsWithChildren = _ragfairOfferService.GetExpiredOfferAssorts();
                await _ragfairOfferGenerator.GenerateDynamicOffers(expiredAssortsWithChildren);

                // Clear out expired offers now we've generated them
                _ragfairOfferService.ResetExpiredOffers();
            }

            _ragfairRequiredItemsService.BuildRequiredItemTable();
        }

        /**
     * Get traders who need to be periodically refreshed
     * @returns string array of traders
     */
        public List<string> GetUpdateableTraders()
        {
            return _ragfairConfig.Traders.Keys.ToList();
        }

        public Dictionary<string, int> GetAllActiveCategories(
            bool fleaUnlocked,
            SearchRequestData searchRequestData,
            List<RagfairOffer> offers){
            return _ragfairCategoriesService.GetCategoriesFromOffers(offers, searchRequestData, fleaUnlocked);
        }

        /**
     * Disable/Hide an offer from flea
     * @param offerId
     */
        public void HideOffer(string offerId){
            var offers = _ragfairOfferService.GetOffers();
            var offer = offers.FirstOrDefault((x) => x.Id == offerId);

            if (offer is null) {
                _logger.Error(_localisationService.GetText("ragfair-offer_not_found_unable_to_hide", offerId));

                return;
            }

            offer.Locked = true;
        }

        public RagfairOffer? GetOffer(string offerId) {
            return _ragfairOfferService.GetOfferByOfferId(offerId);
        }

        public List<RagfairOffer> GetOffers() {
            return _ragfairOfferService.GetOffers();
        }

        public void RemoveOfferStack(string offerId, int amount) {
            _ragfairOfferService.RemoveOfferStack(offerId, amount);
        }

        public bool DoesOfferExist(string offerId) {
            return _ragfairOfferService.DoesOfferExist(offerId);
        }

        public void AddPlayerOffers() {
            _ragfairOfferService.AddPlayerOffers();
        }
}
}