using System;
using InABox.Core;
using PRSClasses;

namespace Comal.Classes
{
    [UserTracking("Product Management")]
    public class Product : DimensionedEntity<ProductDimensions>, IPersistent, IRemotable, IIssues, ILicense<ProductManagementLicense>, IExportable, IImportable, IMergeable
    {
        [UniqueCodeEditor(Visible = Visible.Default, Editable = Editable.Enabled)]
        [EditorSequence(1)]
        public string Code { get; set; }

        [TextBoxEditor]
        [EditorSequence(2)]
        public string Name { get; set; }

        [EditorSequence(3)]
        public ProductStyleLink DefaultStyle { get; set; }
        
        [NullEditor]
        [Obsolete("Replaced with Dimensions", true)]
        // [DoubleEditor]
        // [EditorSequence(4)]
        public double UnitSize { get; set; }

        [NullEditor]
        [Obsolete("Replaced with Dimensions", false)]
        // [EditorSequence(5)]
        public ProductUOMLink Units { get; set; }
        
        [NullEditor]
        [Obsolete("Replaced with Dimensions", true)]
        // [DoubleEditor]
        // [EditorSequence(6)]
        // [Caption("Standard Weight")]
        public double Weight { get; set; }

        [EditorSequence(4)]
        [RequiredColumn]
        [DimensionsEditor(typeof(ProductDimensions))]
        public override ProductDimensions Dimensions { get; set; }

        [EditorSequence(7)]
        public ProductGroupLink Group { get; set; }

        [EditorSequence(8)]
        [DataModelTableName("Image")]
        public ImageDocumentLink Image { get; set; }

        [URLEditor]
        [EditorSequence(9)]
        public string URL { get; set; }

        [TimestampEditor]
        [EditorSequence(10)]
        public DateTime Expired { get; set; }

        [EnumLookupEditor(typeof(ProductPricingStrategy))]
        [EditorSequence("Pricing", 1)]
        public ProductPricingStrategy PricingStrategy { get; set; }

        [EditorSequence("Pricing", 2)]
        public SupplierProductLink Supplier { get; set; }

        [CheckBoxEditor]
        [EditorSequence("Pricing", 3)]
        public bool UseDefaultSupplierPricing { get; set; }

        [CurrencyEditor(Visible = Visible.Optional)]
        [EditorSequence("Pricing", 4)]
        public double BaseCost { get; set; }

        [Aggregate(typeof(ProductComponentCost))]
        [CurrencyEditor(Visible = Visible.Optional)] //, Editable = Editable.Disabled)]
        [EditorSequence("Pricing", 5)]
        public double ComponentCost { get; set; }

        [CurrencyEditor(Visible = Visible.Optional, Editable = Editable.Disabled)]
        [EditorSequence("Pricing", 6)]
        public double NettCost { get; set; }
        
        [CurrencyEditor(Visible = Visible.Optional, Editable = Editable.Disabled)]
        [EditorSequence("Pricing", 7)]
        [LoggableProperty]
        public double AverageCost { get; set; }
        
        [EditorSequence("Pricing", 8)]
        public TaxCodeLink TaxCode { get; set; }

        [EditorSequence("Pricing", 9)]
        public GLCodeLink PurchaseGL { get; set; }

        [EditorSequence("Pricing", 10)]
        public GLCodeLink SellGL { get; set; }

        [EditorSequence("Pricing", 11)]
        public CostCentreLink CostCentre { get; set; }

        [EditorSequence("Pricing", 12)]
        public CostSheetSectionLink CostSheetSection { get; set; }
        
        [ProductChargeEditor]
        [EditorSequence("Pricing", 13)]
        public ProductCharge Charge { get; set; }
        
        /// <summary>
        ///     Flag to indicate whether stock movements are to be tracked for this item
        ///     If set, no stock movements will be recorded, even if the Warehouse and/or default location are set
        /// </summary>
        [CheckBoxEditor]
        [EditorSequence("Warehousing", 1)]
        public bool NonStock { get; set; }

        /// <summary>
        ///     The Warehouse that this item resides in. DefaultLocation Lookups are limited to this Warehouse only, although
        ///     actual stock holdings can be anywhere (imperfect systems)
        /// </summary>
        [EditorSequence("Warehousing", 2)]
        public StockWarehouseLink Warehouse { get; set; }

        [IntegerEditor]
        [EditorSequence("Warehousing", 3)]
        public int MinimumStockLevel { get; set; }

        /// <summary>
        ///     (Optional) The Location to be used when Purchase Orders / Consignments are received.
        ///     If blank, the item will be received into the default location for the Warehouse assign to the product
        ///     If that is also blank, then no stock movement will be recorded when receiving the item
        /// </summary>
        [EditorSequence("Warehousing", 4)]
        public StockLocationLink DefaultLocation { get; set; }

        [Caption("Incoming QA")]
        [EditorSequence("Warehousing", 5)]
        public DigitalFormLink DigitalForm { get; set; }

        [NullEditor]
        public string Barcodes { get; set; }

        [Aggregate(typeof(ProductUnitAggregate))]
        [DoubleEditor(Editable = Editable.Hidden)]
        public double UnitQty { get; set; }

        [Aggregate(typeof(ProductRemnantAggregate))]
        [DoubleEditor(Editable = Editable.Hidden)]
        public double RemnantQty { get; set; }

        [Aggregate(typeof(OnOrderAggregate))]
        [DoubleEditor(Editable = Editable.Hidden)]
        public double OnOrder { get; set; }

        [Aggregate(typeof(TotalStockAggregate))]
        [DoubleEditor(Editable = Editable.Hidden)]
        public double TotalStock { get; set; }

        [Formula(typeof(ReservedStockFormula))]
        [DoubleEditor(Editable = Editable.Hidden)]
        public double ReservedStock { get; set; }

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

        [Aggregate(typeof(TotalRequiredAggregate))]
        [DoubleEditor(Editable = Editable.Hidden)]
        public double Required { get; set; }

        [Aggregate(typeof(ProductReceivedAggregate))]
        [DateTimeEditor(Editable = Editable.Hidden)]
        public DateTime LastReceived { get; set; }

        [Aggregate(typeof(ProductIssuedAggregate))]
        [DateTimeEditor(Editable = Editable.Hidden)]
        public DateTime LastIssued { get; set; }

        [NullEditor]
        public string Issues { get; set; }

        public override string ToString()
        {
            return string.Format("{0}: {1} ({2})", Code, Name, Dimensions.UnitSize);
        }
        


        protected override void Init()
        {
            base.Init();
            Supplier = new SupplierProductLink();
            //UnitSize = 1.0F;
            Units = new ProductUOMLink();
            Group = new ProductGroupLink();
            CostCentre = new CostCentreLink();
            PurchaseGL = new GLCodeLink();
            SellGL = new GLCodeLink();
            CostSheetSection = new CostSheetSectionLink();

            PricingStrategy = ProductPricingStrategy.Standard;
            TaxCode = new TaxCodeLink(() => this);
            Image = new ImageDocumentLink();

            Warehouse = new StockWarehouseLink();
            DigitalForm = new DigitalFormLink();
            DefaultLocation = new StockLocationLink();
            DefaultStyle = new ProductStyleLink();

            NonStock = false;
            UseDefaultSupplierPricing = true;
        
            Dimensions = new ProductDimensions(() => this);
            Charge = new ProductCharge();
        }


        
        public static double CalculateNettCost(ProductPricingStrategy strategy, double basecost, double componentcost)
        {
            if (strategy == ProductPricingStrategy.Kit)
                return basecost + componentcost;
            if (strategy == ProductPricingStrategy.Subcontractor)
                return basecost - componentcost;
            // Standard or Assembly
            return basecost;
        }
    }



    public class ProductFormLookups : ILookupDefinition<DigitalForm, Product>
    {
        public Filter<DigitalForm> DefineFilter(Product[] items)
        {
            // Get all FillableFormTypes where 2nd parameter is typeof(PurchaseOrder)
            return new Filter<DigitalForm>(x => x.Active).IsEqualTo(true).And(x => x.AppliesTo).IsEqualTo("PurchaseOrderItem");
        }

        Columns<Product> ILookupDefinition<DigitalForm, Product>.DefineFilterColumns()
            => new Columns<Product>();
    }
}