using Kean.Domain.Stock.Enums;
using Kean.Domain.Stock.Repositories;
using Kean.Domain.Stock.SharedServices.Proxies;
using System.Linq;
using System.Threading.Tasks;

namespace Kean.Domain.Stock.Strategies
{
    /// <summary>
    /// 默认状态判定策略
    /// </summary>
    public sealed class StateStrategy_Default : StateStrategy
    {
        private readonly IStockRepository _stockRepository; // 存储仓库
        private readonly MaterialProxy _materialProxy;

        /// <summary>
        /// 依赖注入
        /// </summary>
        public StateStrategy_Default(
            IStockRepository stockRepository,
            MaterialProxy materialProxy)
        {
            _stockRepository = stockRepository;
            _materialProxy = materialProxy;
        }

        /*
         * 实现 Kean.Domain.Stock.Strategies.StateStrategy.GetState 方法
         */
        public override async Task<CellState> GetState(string barcode)
        {
            var stock = await _stockRepository.GetStock(barcode);
            if (stock == null)
            {
                return CellState.Empty;
            }
            if (stock.Full == true)
            {
                return CellState.Full;
            }
            else
            {
                if (await _materialProxy.IsPallet(stock.Lines.Any() ? stock.Lines.First().Material : 0))
                {
                    return CellState.Pallet;
                }
                else
                {
                    return CellState.Have;
                }
            }

        }
    }
}