using bnhtrade.Core.Data.Amazon.SellingPartnerAPI;
using FikaAmazonAPI;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace bnhtrade.Core.Data.Amazon.FulFillmentInbound
{
    public class GetShipmentItems
    {
        private AmazonConnection amznConn = new SpApiConnection().Connection;

        public GetShipmentItems()
        {
        }

        public List<Model.AmazonFba.ShipmentItemInfo> GetByDateRange(DateTime utcDateTimeAfter, DateTime utcDateTimeBefore)
        {
            var result = new List<Model.AmazonFba.ShipmentItemInfo>();

            // build the request
            var parameter = new FikaAmazonAPI.Parameter.FulFillmentInbound.ParameterGetShipmentItems();
            parameter.MarketplaceId = amznConn.GetCurrentMarketplace.ID;
            parameter.QueryType = FikaAmazonAPI.Utils.Constants.QueryType.DATE_RANGE;
            parameter.LastUpdatedAfter = utcDateTimeAfter;
            parameter.LastUpdatedBefore = utcDateTimeBefore;

            var apiResult = amznConn.FulFillmentInbound.GetShipmentItems(parameter);
            AppendNextToken(ref apiResult);
            return TransposeModel(apiResult);
        }

        public List<Model.AmazonFba.ShipmentItemInfo> GetByShipmentId(string shipmentId)
        {
            var result = new List<Model.AmazonFba.ShipmentItemInfo>();
            if (string.IsNullOrEmpty(shipmentId)) { return result; }

            // build the request
            //var parameter = new FikaAmazonAPI.Parameter.FulFillmentInbound.ParameterGetShipmentItems();
            //parameter.MarketplaceId = marketPlaceId;
            //parameter.QueryType = FikaAmazonAPI.Utils.Constants.QueryType.SHIPMENT;
            //parameter.ShipmentId = shipmentId;

            var apiResult = amznConn.FulFillmentInbound.GetShipmentItemsByShipmentId(shipmentId);
            AppendNextToken(ref apiResult);
            return TransposeModel(apiResult);
        }

        // checks for next-token, if true appends additional data to the ShipmentData
        private void AppendNextToken(ref FikaAmazonAPI.AmazonSpApiSDK.Models.FulfillmentInbound.InboundShipmentItemList shipmentList)
        {
            while (!string.IsNullOrEmpty(shipmentList.NextToken))
            {
                // build the request
                var parameter = new FikaAmazonAPI.Parameter.FulFillmentInbound.ParameterGetShipmentItems();
                parameter.MarketplaceId = amznConn.GetCurrentMarketplace.ID;
                parameter.QueryType = FikaAmazonAPI.Utils.Constants.QueryType.NEXT_TOKEN;
                parameter.NextToken = shipmentList.NextToken;

                var result = amznConn.FulFillmentInbound.GetShipmentItems(parameter);

                shipmentList.AddRange(result);
                shipmentList.NextToken = result.NextToken;
            }
        }

        private void AppendNextToken(ref FikaAmazonAPI.AmazonSpApiSDK.Models.FulfillmentInbound.GetShipmentItemsResult shipmentList)
        {
            while (!string.IsNullOrEmpty(shipmentList.NextToken))
            {
                // build the request
                var parameter = new FikaAmazonAPI.Parameter.FulFillmentInbound.ParameterGetShipmentItems();
                parameter.MarketplaceId = amznConn.GetCurrentMarketplace.ID;
                parameter.QueryType = FikaAmazonAPI.Utils.Constants.QueryType.NEXT_TOKEN;
                parameter.NextToken = shipmentList.NextToken;

                var result = amznConn.FulFillmentInbound.GetShipmentItems(parameter);

                shipmentList.ItemData.AddRange(result);
                shipmentList.NextToken = result.NextToken;
            }
        }

        private List<Model.AmazonFba.ShipmentItemInfo> TransposeModel(FikaAmazonAPI.AmazonSpApiSDK.Models.FulfillmentInbound.InboundShipmentItemList shipmentResult)
        {
            var returnList = new List<Model.AmazonFba.ShipmentItemInfo>();

            for (var i = 0; i < shipmentResult.Count; i++)
            {
                var item = new Model.AmazonFba.ShipmentItemInfo();

                // under new SP-API there are more details to be used, if needed
                item.AmazonFNSKU = shipmentResult[i].FulfillmentNetworkSKU;
                item.AmazonShipmentId = shipmentResult[i].ShipmentId;
                item.QuantityAllocated = shipmentResult[i].QuantityShipped.GetValueOrDefault();
                item.QuantityReceived = shipmentResult[i].QuantityReceived.GetValueOrDefault();
                item.SKUNumber = shipmentResult[i].SellerSKU;

                returnList.Add(item);
            }

            return returnList;
        }

        private List<Model.AmazonFba.ShipmentItemInfo> TransposeModel(FikaAmazonAPI.AmazonSpApiSDK.Models.FulfillmentInbound.GetShipmentItemsResult shipmentResult)
        {
            var returnList = new List<Model.AmazonFba.ShipmentItemInfo>();

            for (var i = 0; i < shipmentResult.ItemData.Count; i++)
            {
                var item = new Model.AmazonFba.ShipmentItemInfo();

                // under new SP-API there are more details to be used, if needed
                item.AmazonFNSKU = shipmentResult.ItemData[i].FulfillmentNetworkSKU;
                item.AmazonShipmentId = shipmentResult.ItemData[i].ShipmentId;
                item.QuantityAllocated = shipmentResult.ItemData[i].QuantityShipped.GetValueOrDefault();
                item.QuantityReceived = shipmentResult.ItemData[i].QuantityReceived.GetValueOrDefault();
                item.SKUNumber = shipmentResult.ItemData[i].SellerSKU;

                returnList.Add(item);
            }

            return returnList;
        }
    }
}