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

namespace Comal.Classes
{

    public class ProductInstanceFreeStockAggregate : CoreAggregate<ProductInstance, StockMovement, double>
    {
        public override Expression<Func<StockMovement, double>> Aggregate => x => x.Qty;

        public override Filter<StockMovement> Filter => new Filter<StockMovement>(x => x.Job).NotLinkValid();

        public override Dictionary<Expression<Func<StockMovement, object>>, Expression<Func<ProductInstance, object>>>
            Links =>
            new Dictionary<Expression<Func<StockMovement, object>>, Expression<Func<ProductInstance, object>>>()
            {
                { StockMovement => StockMovement.Product.ID, Instance => Instance.Product.ID },
                { StockMovement => StockMovement.Style.ID, Instance => Instance.Style.ID },
                { StockMovement => StockMovement.Dimensions.UnitSize, Instance => Instance.Dimensions.UnitSize },
            };

        public override AggregateCalculation Calculation => AggregateCalculation.Sum;
    }

    public class ProductInstance : DimensionedEntity<StockDimensions>, IRemotable, IPersistent, IProductInstance,
        ISequenceable, ILicense<ProductManagementLicense>
    {

        [NullEditor] public long Sequence { get; set; }

        [EditorSequence(1)] 
        public ProductLink Product { get; set; }

        [EditorSequence(2)] 
        public ProductStyleLink Style { get; set; }

        [EditorSequence(3)]
        [RequiredColumn]
        [DimensionsEditor(typeof(StockDimensions))]
        public override StockDimensions Dimensions { get; set; }

        [IntegerEditor]
        [EditorSequence(4)]
        [LoggableProperty]
        public int MinimumStockLevel { get; set; }

        [EditorSequence(5)]
        [Aggregate(typeof(ProductInstanceFreeStockAggregate))]
        [DoubleEditor(Editable = Editable.Hidden)]
        public double FreeStock { get; set; }

        [CurrencyEditor(Visible = Visible.Optional)]
        [EditorSequence(5)]
        [LoggableProperty]
        public double NettCost { get; set; }

        [CurrencyEditor(Visible = Visible.Optional)]
        [EditorSequence(6)]
        [LoggableProperty]
        public double AverageCost { get; set; }

        [CurrencyEditor(Visible = Visible.Optional, Editable = Editable.Disabled)]
        [EditorSequence(7)]
        [LoggableProperty]
        public double LastCost { get; set; }

        [EditorSequence(8)]
        [LoggableProperty]
        [DoubleEditor]
        public double Parameter { get; set; }

    }
}