using Kean.Domain.Task.Commands;
using Kean.Domain.Task.Models;
using Kean.Domain.Task.Repositories;
using Kean.Domain.Task.SharedServices.Proxies;
using Kean.Infrastructure.Configuration;
using System.Linq;
using System.Threading.Tasks;

namespace Kean.Domain.Task.Strategies
{
    /// <summary>
    /// 简单避让策略
    /// </summary>
    public sealed class AvertStrategy_Simple : AvertStrategy
    {
        private readonly IWarehouseRepository _warehouseRepository; // 库房仓库
        private readonly BarcodeInterpreter _barcodeInterpreter; // 条码解释器
        private readonly StockProxy _stockProxy; // 仓储域代理

        /// <summary>
        /// 依赖注入
        /// </summary>
        public AvertStrategy_Simple(
            IWarehouseRepository warehouseRepository,
            BarcodeInterpreter barcodeInterpreter,
            StockProxy stockProxy)
        {
            _warehouseRepository = warehouseRepository;
            _barcodeInterpreter = barcodeInterpreter;
            _stockProxy = stockProxy;
        }

        /*
         * 实现 Kean.Domain.Task.Strategies.AvertStrategy.AutoCommand 方法
         */
        public override async Task<TransferCommand> AutoCommand(Cell cell)
        {
            var barcode = await _stockProxy.GetBarcode(cell.Id);
            if (barcode == null)
            {
                return new();
            }
            else
            {
                var spec = await _stockProxy.GetSpec(barcode) ?? cell.Spec;
                var pallet = await _barcodeInterpreter.Interpret(barcode);
                var goodsid = await _stockProxy.GetStorageMaterial(barcode);
                var destination = (await _warehouseRepository.GetFreeCell(cell.Laneway, spec, pallet, goodsid))
                    .OrderByDescending(c => c.Deep)
                    .ThenBy(r=>r.Row)
                    .ThenBy(r=>r.Column)
                    .FirstOrDefault();
                return new()
                {
                    Barcode = barcode,
                    Destination = destination,
                    Warehouse = destination == null ? 0 : destination.Warehouse
                };
            }
        }
    }
}