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

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

        public GetShipments()
        {
        }

        public List<Model.AmazonFba.ShipmentInfo> GetByDateRange(DateTime utcDateTimeAfter, DateTime utcDateTimeBefore)
        {
            // At least one of the ShipmentStatusList and ShipmentIdList must be provided

            var result = new List<Model.AmazonFba.ShipmentInfo>();

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

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

        public List<Model.AmazonFba.ShipmentInfo> GetByShipmentIdList(List<string> shipmentIdList)
        {
            var result = new List<Model.AmazonFba.ShipmentInfo>();

            // build the request
            var parameter = new FikaAmazonAPI.Parameter.FulFillmentInbound.ParameterGetShipments();
            parameter.MarketplaceId = amznConn.GetCurrentMarketplace.ID;
            parameter.QueryType = FikaAmazonAPI.Utils.Constants.QueryType.SHIPMENT;
            parameter.ShipmentIdList = shipmentIdList;

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

        private void AddShipmentStatusList(ref FikaAmazonAPI.Parameter.FulFillmentInbound.ParameterGetShipments parameters)
        {
            var list = new List<ShipmentStatus>();
            list.Add(ShipmentStatus.CANCELLED);
            list.Add(ShipmentStatus.CHECKED_IN);
            list.Add(ShipmentStatus.CLOSED);
            list.Add(ShipmentStatus.DELETED);
            list.Add(ShipmentStatus.DELIVERED);
            list.Add(ShipmentStatus.ERROR);
            list.Add(ShipmentStatus.IN_TRANSIT);
            list.Add(ShipmentStatus.READY_TO_SHIP);
            list.Add(ShipmentStatus.RECEIVING);
            list.Add(ShipmentStatus.SHIPPED);
            list.Add(ShipmentStatus.WORKING);

            parameters.ShipmentStatusList = list;
        }

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

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

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

        // transposes return api object data to my model
        private List<Model.AmazonFba.ShipmentInfo> TransposeModel(FikaAmazonAPI.AmazonSpApiSDK.Models.FulfillmentInbound.GetShipmentsResult shipmentResult)
        {
            var returnList = new List<Model.AmazonFba.ShipmentInfo>();

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

                item.FbaShipmentId = shipmentResult.ShipmentData[i].ShipmentId;
                item.DestinationFulfillmentCenterId = shipmentResult.ShipmentData[i].DestinationFulfillmentCenterId;
                item.ShipmentName = shipmentResult.ShipmentData[i].ShipmentName;
                item.ShipmentStatus = shipmentResult.ShipmentData[i].ShipmentStatus.ToString();

                returnList.Add(item);
            }

            return returnList;
        }
    }
}