using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace wms.service.Service.StrategyService
{
    public class LocationForStrategyInfoComparer : IComparer<LocationForStrategyInfo>
    {
        private string _fieldName { get; set; }
        public LocationForStrategyInfoComparer(string fieldName)
        {
            _fieldName = fieldName;
        }
        public int Compare(LocationForStrategyInfo x, LocationForStrategyInfo y)
        {
            switch (_fieldName)
            {
                case "InTime":
                    x.StockList.Sort(new LocationForStrategyInfoStockComparer(_fieldName));
                    y.StockList.Sort(new LocationForStrategyInfoStockComparer(_fieldName));
                    return x.StockList.First().InTime.Date.CompareTo(y.StockList.First().InTime.Date);
                case "ProductionTime":
                    x.StockList.Sort(new LocationForStrategyInfoStockComparer(_fieldName));
                    y.StockList.Sort(new LocationForStrategyInfoStockComparer(_fieldName));
                    return x.StockList.First().ProductionTime.Date.CompareTo(y.StockList.First().ProductionTime.Date);
                case "LastInTime":
                    x.StockList.Sort(new LocationForStrategyInfoStockComparer(_fieldName));
                    y.StockList.Sort(new LocationForStrategyInfoStockComparer(_fieldName));
                    return x.StockList.First().LastInTime.Date.CompareTo(y.StockList.First().LastInTime.Date);
                case "MixCount":
                    var temp = x.StockList.Select(q => q.MaterialId).Distinct().Count().CompareTo(y.StockList.Select(q => q.MaterialId).Distinct().Count()) * (-1);
                    if (temp == 0)
                    {
                        x.StockList.Sort(new LocationForStrategyInfoStockComparer("ProductionTime"));
                        y.StockList.Sort(new LocationForStrategyInfoStockComparer("ProductionTime"));
                        return x.StockList.First().ProductionTime.Date.CompareTo(y.StockList.First().ProductionTime.Date);
                    }
                    return temp;
                default:
                    return x.Id.CompareTo(y.Id);

            }
        }
    }
    public class LocationForStrategyInfoStockComparer : IComparer<LocationForStrategyInfoStock>
    {
        private string _fieldName { get; set; }
        public LocationForStrategyInfoStockComparer(string fieldName)
        {
            _fieldName = fieldName;
        }
        public int Compare(LocationForStrategyInfoStock x, LocationForStrategyInfoStock y)
        {
            switch (_fieldName)
            {
                case "InTime":
                    return x.InTime.Date.CompareTo(y.InTime.Date);
                case "ProductionTime":
                    return x.ProductionTime.Date.CompareTo(y.ProductionTime.Date);
                case "LastInTime":
                    return x.LastInTime.Date.CompareTo(y.LastInTime.Date);
                default:
                    return x.GroupStockDetailId.CompareTo(y.GroupStockDetailId);

            }
        }
    }
}