using System;
using System.Collections.Generic;
using System.Linq;
using Win_in.Sfs.Scp.v1.Domain.Asns;
using Win_in.Sfs.Scp.WebApi.Asns;

namespace Win_in.Sfs.Scp.WebApi.Console
{
    public class AsnFactory
    {
        public ASN_X12_856_3060 CreateAsnX128563060(TB_ASN scpAsn,List<TS_BARCODE> barcodes)
        {

            var asnCode = scpAsn.AsnBillNum;
            var senderId = scpAsn.VendId;
            var receiverId = "IACNA_ID";
            var shipTime = scpAsn.ShipTime ?? DateTime.Now;

            var envType = ISA.EnvType.P;
            var authorization = "";
            var security = "";
            //初始化ASN单
            var asn = CreateAsn(asnCode,senderId,receiverId,shipTime,envType,authorization,security);

            var functionalGroupCode = "123456789";
            //初始化功能组
            var functionalGroup = CreateFunctionalGroup(senderId,receiverId,shipTime,functionalGroupCode);

            var shipNoticeCode = "0001";
            var datetimeType = "011";
            //初始化发货单
            var shipNotice = CreateShipNotice(shipNoticeCode,functionalGroupCode,shipTime,datetimeType);

            var gValue = 0;
            var gUom = "KG";
            var nValue = 0;
            var nUom = "KG";
            var routeSequenceCode = "B";
            var identificationCode = "PSTV";
            var mode = "LT";
            var equipmentCode = "TL";
            var equipmentNumber = "123456";//TODO 车牌号
            //初始化发货明细
            var shipment = CreateShipment(shipNotice,gValue,gUom,nValue,nUom,routeSequenceCode,identificationCode,mode,
                equipmentCode,equipmentNumber,functionalGroupCode,functionalGroupCode,senderId,receiverId);


            //计算与添加托盘和尾箱
            var palletCodes = barcodes.Select(p => p.Extend2).Distinct().ToList();
            foreach (var palletCode in palletCodes)
            {
                var palletBarcodes = barcodes.Where(p => p.Extend2==palletCode).ToList();

                var items = new List<Item>();
                var group = palletBarcodes
                    .GroupBy(p => new { p.PartCode, p.Qty, p.Batch, p.PoUnit, p.PoBillNum,p.PackQty})
                    .Select(p => new
                    {
                        p.Key.PartCode,
                        p.Key.Qty,
                        p.Key.Batch,
                        p.Key.PoUnit,
                        p.Key.PoBillNum,
                        p.Key.PackQty,
                        Labels = p.Select(p=>p.BarCode).ToList()
                    })
                    .ToList();

                foreach (var b in group)
                {
                    var accumQty = 0;//TODO 如何计算
                    var loadQty = b.Labels.Count;
                    var unitQty = b.PackQty;
                    var item = CreateItem(b.PartCode, loadQty * unitQty, b.PoUnit, accumQty, b.PoBillNum, loadQty, unitQty,b.Labels);
                    items.Add(item);
                }

                //如果托标签为空，当作尾箱处理
                if (string.IsNullOrEmpty(palletCode))
                {
                    foreach (var item in items)
                    {
                        shipment.AddOrphanItem(shipNotice,item);
                    }
                }
                //添加托盘
                else
                {
                    var tare = CreateTare(palletCode);
                    shipment.AddTare(shipNotice,tare);
                    foreach (var item in items)
                    {
                        tare.AddItem(shipNotice, item);
                    }
                }
                
            }
          
            //TODO 如何获取包装代码，或者规则是什么？
            var packagingCode = "PLT90";
            //装载量需要在添加托盘和尾箱后再计算
            var loadingQty = shipment.Tares.Count+shipment.OrphanItems.Count;
            shipment.SetTD1(packagingCode, loadingQty);
            
            shipNotice
                .AddShipment(shipment)      //添加发货明细
                .SetCTT()                   //设置发货单汇总
                .SetSE(shipNoticeCode);     //设置发货明细结尾
            //添加发货单
            functionalGroup
                .AddShipNotice(shipNotice)
                .SetGE(functionalGroupCode);
            //添加功能组
            asn
                .AddFunctionGroup(functionalGroup)
                .SetIEA(asnCode);
            return asn;
        }

        private ASN_X12_856_3060 CreateAsn(string asnCode, string senderId, string receiverId, DateTime datetime,
            ISA.EnvType envType = ISA.EnvType.P, string authorization = "", string security = "")
        {
            var asn = new ASN_X12_856_3060();
            asn.SetISA(asnCode, senderId, receiverId, datetime, envType, authorization, security);
            return asn;
        }

        private FunctionalGroup CreateFunctionalGroup(string senderId, string receiverId, DateTime datetime,
            string functionalGroupCode)
        {
            var functionGroup = new FunctionalGroup();
            functionGroup.SetGS(senderId, receiverId, datetime, functionalGroupCode);
            return functionGroup;
        }

        private ShipNotice CreateShipNotice(string shipNoticeCode, string noticeNumber, DateTime datetime,
            string datetimeType="011", string purpose = "00")
        {
            var shipNotice = new ShipNotice();
            shipNotice
                .SetST(shipNoticeCode)
                .SetBSN(noticeNumber, datetime, purpose)
                .SetDTM(datetime, datetimeType);
            shipNotice.AddSegment(4);
            return shipNotice;
        }

        private Shipment CreateShipment(ShipNotice shipNotice, decimal gValue, string gUom, decimal nValue, string nUom, 
            string routeSequenceCode, string identificationCode, string mode, string equipmentCode,
            string equipmentNumber, string bmRefValue, string pkRefValue, string senderId, string receiverId)
        {
            var shipment = new Shipment();
            shipment
                .SetHL()
                .SetMEA_G(gValue, gUom)
                .SetMEA_N(nValue, nUom)
                .SetTD5(routeSequenceCode, identificationCode, mode)
                .SetTD3(equipmentCode, equipmentNumber)
                .SetREF_BM(bmRefValue)
                .SetREF_PK(pkRefValue)
                .SetN1_SF(senderId)
                .SetN1_ST(receiverId)
                ;
            shipNotice.AddSegment(10);

            return shipment;
        }

        private Tare CreateTare(string tareLabelCode)
        {
            var tare = new Tare();
            tare.SetHL()
                .SetREF_LS(tareLabelCode);
           
            return tare;
        }

        private Item CreateItem(string itemCode, decimal qty, string uom, int accumQty,
            string poNumber, int loadQty, decimal unitQty, Dictionary<string,string> itemLabelCodes)
        {
           
            var item = new Item();
            item.SetHL()
                .SetLIN(itemCode)
                .SetSN1(qty, uom, accumQty)
                .SetPRF(poNumber)
                .SetCLD(loadQty, unitQty)
                .SetREF_LS_LTs(itemLabelCodes);
            return item;
        }


    }
}