using System;
using System.Collections.Generic;
using System.Linq.Expressions;
using InABox.Core;
using PRSClasses;


namespace Comal.Classes
{
    // public class StockHoldingLastStocktake : CoreAggregate<StockHolding, StockMovement, DateTime>
    // {
    //     public override Expression<Func<StockMovement, DateTime>> Aggregate => x => x.Date;
    //
    //     public override Filter<StockMovement> Filter => new Filter<StockMovement>(x => x.Type)
    //         .IsEqualTo(StockMovementType.StockTake);
    //
    //     public override Dictionary<Expression<Func<StockMovement, object?>>, Expression<Func<StockHolding, object?>>> Links =>
    //         new Dictionary<Expression<Func<StockMovement, object?>>, Expression<Func<StockHolding, object?>>>()
    //         {
    //             { StockMovement => StockMovement.Product.ID, StockHolding => StockHolding.Product.ID },
    //             { StockMovement => StockMovement.Location.ID, StockHolding => StockHolding.Location.ID },
    //             { StockMovement => StockMovement.Style.ID, StockHolding => StockHolding.Style.ID },
    //             { StockMovement => StockMovement.Job.ID, StockHolding => StockHolding.Job.ID },
    //         }.AddRange(Dimensions.GetLinks<StockMovement, StockHolding>(x => x.Dimensions, x => x.Dimensions));
    //
    //     public override AggregateCalculation Calculation => AggregateCalculation.Maximum;
    // }
    //
    // [UserTracking(typeof(StockMovement))]
    // [Unrecoverable]
    // public class StockHolding : StockEntity, IRemotable, IPersistent, IOneToMany<StockLocation>, IOneToMany<Product>, 
    //     IStockHolding, ILicense<WarehouseLicense>
    // {
    //     
    //     [Editable(Editable.Disabled)]
    //     [EditorSequence(1)]
    //     public StockLocationLink Location { get; set; }
    //     
    //     private class ProductLookupGenerator : LookupDefinitionGenerator<Product, StockHolding>
    //     {
    //         public override Filter<Product>? DefineFilter(StockHolding[] items)
    //             => LookupFactory.DefineFilter<Product>().And(x => x.NonStock).IsEqualTo(false);
    //     }
    //     [Editable(Editable.Disabled)]
    //     [EditorSequence(2)]
    //     [LookupDefinition(typeof(ProductLookupGenerator))]
    //     public override ProductLink Product { get; set; }
    //     
    //     [DimensionsEditor(typeof(StockDimensions))]
    //     [Editable(Editable.Disabled)]
    //     [EditorSequence(3)]
    //     public override StockDimensions Dimensions { get; set; }
    //
    //     [Editable(Editable.Disabled)]
    //     [EditorSequence(4)]
    //     public ProductStyleLink Style { get; set; }
    //     
    //     [Editable(Editable.Disabled)]
    //     [EditorSequence(4)]
    //     public JobLink Job { get; set; }
    //     
    //     [DoubleEditor(Editable = Editable.Disabled, Summary = Summary.Sum)]
    //     [EditorSequence(5)]
    //     public double Units { get; set; }
    //     
    //     [DoubleEditor(Editable = Editable.Disabled, Summary = Summary.Sum)]
    //     [EditorSequence(6)]
    //     public double Qty { get; set; }
    //     
    //     [DoubleEditor(Editable = Editable.Disabled, Summary = Summary.Sum)]
    //     [EditorSequence(7)]
    //     public double Weight { get; set; }
    //     
    //     [DoubleEditor(Editable = Editable.Disabled, Summary = Summary.Sum)]
    //     [EditorSequence(8)]
    //     public double Value { get; set; }
    //     
    //     [DoubleEditor(Editable = Editable.Disabled)]
    //     [EditorSequence(9)]
    //     public double AverageValue { get; set; }
    //     
    //     [DoubleEditor(Editable = Editable.Disabled, Summary = Summary.Sum)]
    //     [EditorSequence(10)]
    //     public double Available { get; set; }
    //
    //     [Formula(typeof(StockHoldingAllocatedFormula))]
    //     [DoubleEditor(Editable = Editable.Disabled, Summary = Summary.Sum)]
    //     [EditorSequence(11)]
    //     public double Allocated { get; set; }
    //     
    //     [Aggregate(typeof(StockHoldingLastStocktake))]
    //     [DateEditor(Editable = Editable.Disabled)]
    //     [EditorSequence(11)]
    //     public DateTime LastStockTake { get; set; }
    //     
    //     public static Column<IStockHolding>[] Columns => new Column<IStockHolding>[]
    //     {
    //         new Column<IStockHolding>(x => x.Job.ID),
    //         new Column<IStockHolding>(x => x.Location.ID),
    //         new Column<IStockHolding>(x => x.Product.ID),
    //         new Column<IStockHolding>(x => x.Style.ID),
    //         new Column<IStockHolding>(x => x.Dimensions.Unit.ID),
    //         new Column<IStockHolding>(x => x.Dimensions.Quantity),
    //         new Column<IStockHolding>(x => x.Dimensions.Length),
    //         new Column<IStockHolding>(x => x.Dimensions.Width),
    //         new Column<IStockHolding>(x => x.Dimensions.Height),
    //         new Column<IStockHolding>(x => x.Dimensions.Weight),
    //     };
    //     
    //     public static Filter<StockMovement>? GetFilter(IStockHolding holding)
    //     {
    //         var filter = new Filters<StockMovement>();
    //     
    //         foreach(var column in Columns)
    //         {
    //             filter.Add(new Filter<StockMovement>(column.Cast<StockMovement>()).IsEqualTo(CoreUtils.GetPropertyValue(holding, column.Property)));
    //         }
    //     
    //         return filter.Combine();
    //     }
    // }
    //
    // internal class StockHoldingAllocatedFormula : IFormula<StockHolding, double>
    // {
    //     public Expression<Func<StockHolding, double>> Value => x => x.Qty;
    //
    //     public FormulaOperator Operator => FormulaOperator.Subtract;
    //
    //     public Expression<Func<StockHolding, double>>[] Modifiers => new Expression<Func<StockHolding, double>>[]
    //     {
    //         x => x.Available
    //     };
    //
    //     public FormulaType Type => FormulaType.Virtual;
    // }
}