using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Runtime.CompilerServices;
using InABox.Core;

namespace Comal.Classes
{
    // public class StockSummaryBOMAggregate : CoreAggregate<StockSummary, JobBillOfMaterialsItem, double>
    // {
    //     public override Expression<Func<JobBillOfMaterialsItem, double>> Aggregate => x => x.Quantity;
    //
    //     public override AggregateCalculation Calculation => AggregateCalculation.Sum;
    //
    //     public override Dictionary<Expression<Func<JobBillOfMaterialsItem, object?>>, Expression<Func<StockSummary, object?>>> Links =>
    //         new Dictionary<Expression<Func<JobBillOfMaterialsItem, object?>>, Expression<Func<StockSummary, object?>>>()
    //         {
    //             { JobBillOfMaterialsItem => JobBillOfMaterialsItem.Job.ID, summary => summary.Job.ID },
    //             { JobBillOfMaterialsItem => JobBillOfMaterialsItem.Product.ID, summary => summary.Product.ID },
    //             { JobBillOfMaterialsItem => JobBillOfMaterialsItem.Style.ID, summary => summary.Style.ID },
    //         }.AddRange(Dimensions.GetLinks<JobBillOfMaterialsItem, StockSummary>());
    //
    //     public override Filter<JobBillOfMaterialsItem> Filter =>
    //         new Filter<JobBillOfMaterialsItem>(x => x.BillOfMaterials.Approved).IsNotEqualTo(DateTime.MinValue);
    // }
    // public class StockSummaryMinimumStockAggregate : CoreAggregate<StockSummary, ProductInstance, int>
    // {
    //     public override Expression<Func<ProductInstance, int>> Aggregate => x => x.MinimumStockLevel;
    //
    //     public override AggregateCalculation Calculation => AggregateCalculation.Sum;
    //
    //     public override Dictionary<Expression<Func<ProductInstance, object?>>, Expression<Func<StockSummary, object?>>> Links =>
    //         new Dictionary<Expression<Func<ProductInstance, object?>>, Expression<Func<StockSummary, object?>>>()
    //         {
    //             { JobBillOfMaterialsItem => JobBillOfMaterialsItem.Product.ID, summary => summary.Product.ID },
    //             { JobBillOfMaterialsItem => JobBillOfMaterialsItem.Style.ID, summary => summary.Style.ID },
    //         }.AddRange(Dimensions.GetLinks<ProductInstance, StockSummary>());
    //
    // }
    //
    // public class StockSummaryIssuedAggregate : CoreAggregate<StockSummary, StockMovement, double>
    // {
    //     public override Expression<Func<StockMovement, double>> Aggregate => x => x.Issued;
    //
    //     public override Filter<StockMovement> Filter => new Filter<StockMovement>(x => x.Type).IsEqualTo(StockMovementType.Issue)
    //         .And(x => x.Job.ID).IsNotEqualTo(Guid.Empty);
    //
    //     public override AggregateCalculation Calculation => AggregateCalculation.Sum;
    //
    //     public override Dictionary<Expression<Func<StockMovement, object?>>, Expression<Func<StockSummary, object?>>> Links =>
    //         new Dictionary<Expression<Func<StockMovement, object?>>, Expression<Func<StockSummary, object?>>>()
    //         {
    //             { StockMovement => StockMovement.Job.ID, summary => summary.Job.ID },
    //             { StockMovement => StockMovement.Product.ID, summary => summary.Product.ID },
    //             { StockMovement => StockMovement.Style.ID, summary => summary.Style.ID },
    //         }.AddRange(Dimensions.GetLinks<StockMovement, StockSummary>());
    // }
    //
    // public class StockSummaryTotalRequiredFormula : IFormula<StockSummary, double>
    // {
    //     public Expression<Func<StockSummary, double>> Value => x => x.BillOfMaterials;
    //
    //     public Expression<Func<StockSummary, double>>[] Modifiers => new Expression<Func<StockSummary, double>>[]
    //     {
    //         x => x.Issued
    //     };
    //
    //     public FormulaOperator Operator => FormulaOperator.Subtract;
    //
    //     public FormulaType Type => FormulaType.Virtual;
    // }
    //
    // public class StockSummaryNettRequiredFormula : IFormula<StockSummary, double>
    // {
    //     public Expression<Func<StockSummary, double>> Value => x => x.TotalRequired;
    //
    //     public Expression<Func<StockSummary, double>>[] Modifiers => new Expression<Func<StockSummary, double>>[]
    //     {
    //         x => 0.0
    //     };
    //
    //     public FormulaOperator Operator => FormulaOperator.Maximum;
    //
    //     public FormulaType Type => FormulaType.Virtual;
    // }
    //
    // public class StockSummaryAllStockAggregate : CoreAggregate<StockSummary, StockMovement, double>
    // {
    //     public override Expression<Func<StockMovement, double>> Aggregate => x => x.Units;
    //
    //     public override AggregateCalculation Calculation => AggregateCalculation.Sum;
    //
    //     public override Dictionary<Expression<Func<StockMovement, object?>>, Expression<Func<StockSummary, object?>>> Links =>
    //         new Dictionary<Expression<Func<StockMovement, object?>>, Expression<Func<StockSummary, object?>>>()
    //         {
    //             { StockMovement => StockMovement.Product.ID, summary => summary.Product.ID },
    //             { StockMovement => StockMovement.Style.ID, summary => summary.Style.ID },
    //         }.AddRange(Dimensions.GetLinks<StockMovement, StockSummary>());
    // }
    //
    // public class StockSummaryOrderAggregate : CoreAggregate<StockSummary, PurchaseOrderItem, double>
    // {
    //     public override Expression<Func<PurchaseOrderItem, double>> Aggregate => x => x.Qty;
    //
    //     public override AggregateCalculation Calculation => AggregateCalculation.Sum;
    //
    //     public override Dictionary<Expression<Func<PurchaseOrderItem, object?>>, Expression<Func<StockSummary, object?>>> Links =>
    //         new Dictionary<Expression<Func<PurchaseOrderItem, object?>>, Expression<Func<StockSummary, object?>>>()
    //         {
    //             { PurchaseOrderItem => PurchaseOrderItem.Product.ID, summary => summary.Product.ID },
    //             { PurchaseOrderItem => PurchaseOrderItem.Style.ID, summary => summary.Style.ID },
    //         }.AddRange(Dimensions.GetLinks<PurchaseOrderItem, StockSummary>());
    //
    //     public override Filter<PurchaseOrderItem> Filter => new Filter<PurchaseOrderItem>(x => x.ReceivedDate).IsEqualTo(DateTime.MinValue);
    // }
    //
    // public class StockSummaryTotalStockFormula : IFormula<StockSummary, double>
    // {
    //     public Expression<Func<StockSummary, double>> Value => x => x.AllStock;
    //
    //     public Expression<Func<StockSummary, double>>[] Modifiers => new Expression<Func<StockSummary, double>>[]
    //     {
    //         x => x.OnOrder
    //     };
    //
    //     public FormulaOperator Operator => FormulaOperator.Add;
    //
    //     public FormulaType Type => FormulaType.Virtual;
    // }
    //
    // public class StockSummaryBalanceAvailableFormula : IFormula<StockSummary, double>
    // {
    //     public Expression<Func<StockSummary, double>> Value => x => x.TotalStock;
    //
    //     public Expression<Func<StockSummary, double>>[] Modifiers => new Expression<Func<StockSummary, double>>[]
    //     {
    //         x => x.MinimumStockLevel,
    //         x => x.NettRequired
    //     };
    //
    //     public FormulaOperator Operator => FormulaOperator.Subtract;
    //
    //     public FormulaType Type => FormulaType.Virtual;
    // }
    //
    // public class StockSummaryUnionGenerator : AutoEntityUnionGenerator<IJobMaterial>
    // {
    //     protected override void Configure()
    //     {
    //         // 
    //         AddTable<ProductInstance>()
    //             .AddConstant<object?>(x => x.Job.ID, Guid.Empty);
    //
    //         // BOM
    //         AddTable<JobBillOfMaterialsItem>(new Filter<JobBillOfMaterialsItem>(x => x.Job.ID).IsNotEqualTo(Guid.Empty));
    //         
    //         // Stock Issues
    //         AddTable<StockMovement>(new Filter<StockMovement>(x => x.Job.ID).IsNotEqualTo(Guid.Empty).And(x=>x.Type).IsEqualTo(StockMovementType.Issue));
    //
    //         // Stock Holdings
    //         AddTable<StockHolding>();
    //         
    //         // On Order
    //         AddTable<PurchaseOrderItem>(new Filter<PurchaseOrderItem>(x => x.ReceivedDate).IsEqualTo(DateTime.MinValue));
    //         
    //     }
    //
    //     public override bool Distinct => true;
    //
    //     public override Column<IJobMaterial>[] IDColumns => new Column<IJobMaterial>[]
    //     {
    //         new Column<IJobMaterial>(x => x.Job.ID),
    //         new Column<IJobMaterial>(x => x.Product.ID),
    //         new Column<IJobMaterial>(x => x.Style.ID),
    //         new Column<IJobMaterial>(x => x.Dimensions.Unit.ID),
    //         new Column<IJobMaterial>(x => x.Dimensions.Quantity),
    //         new Column<IJobMaterial>(x => x.Dimensions.Length),
    //         new Column<IJobMaterial>(x => x.Dimensions.Width),
    //         new Column<IJobMaterial>(x => x.Dimensions.Height),
    //         new Column<IJobMaterial>(x => x.Dimensions.Weight)
    //     };
    // }
    //
    // public class StockSummaryCalculatedField : IFormula<StockSummary, double>
    // {
    //     public Expression<Func<StockSummary, double>> Value => x => 0.0;
    //     public Expression<Func<StockSummary, double>>[] Modifiers => new Expression<Func<StockSummary, double>>[] { };
    //     public FormulaOperator Operator => FormulaOperator.Constant;
    //     public FormulaType Type => FormulaType.Virtual;
    // }
    //
    // public class StockSummaryCalculatedStringField : IFormula<StockSummary, string>
    // {
    //     public Expression<Func<StockSummary, string>> Value => x => "";
    //     public Expression<Func<StockSummary, string>>[] Modifiers => new Expression<Func<StockSummary, string>>[] { };
    //     public FormulaOperator Operator => FormulaOperator.Constant;
    //     public FormulaType Type => FormulaType.Virtual;
    // }
    //
    //
    // [UserTracking(typeof(Product))]
    // [AutoEntity(typeof(StockSummaryUnionGenerator))]
    // public class StockSummary : StockEntity, IJobMaterial, IRemotable, IPersistent, ILicense<WarehouseLicense>
    // {
    //
    //     [NullEditor]
    //     public JobLink Job { get; set; }
    //
    //     [EditorSequence(1)]
    //     public override ProductLink Product { get; set; }
    //
    //     [EditorSequence(2)]
    //     public ProductStyleLink Style { get; set; }
    //
    //     [EditorSequence(3)]
    //     [RequiredColumn]
    //     [DimensionsEditor(typeof(StockDimensions))]
    //     public override StockDimensions Dimensions { get; set; }
    //
    //     [EditorSequence(4)]
    //     [DoubleEditor]
    //     [Aggregate(typeof(StockSummaryBOMAggregate))]
    //     public double BillOfMaterials { get; set; }
    //
    //     [EditorSequence(5)]
    //     [IntegerEditor]
    //     [Aggregate(typeof(StockSummaryMinimumStockAggregate))]
    //     public int MinimumStockLevel { get; set; }
    //
    //     [EditorSequence(6)]
    //     [Aggregate(typeof(StockSummaryIssuedAggregate))]
    //     [DoubleEditor]
    //     public double Issued { get; set; }
    //     
    //     [EditorSequence(7)]
    //     [Formula(typeof(StockSummaryTotalRequiredFormula))]
    //     public double TotalRequired { get; set; }
    //     
    //     [EditorSequence(8)]
    //     [Formula(typeof(StockSummaryNettRequiredFormula))]
    //     public double NettRequired { get; set; }
    //
    //     [EditorSequence(9)]
    //     [Aggregate(typeof(StockSummaryAllStockAggregate))]
    //     [DoubleEditor]
    //     public double AllStock { get; set; }
    //
    //     [EditorSequence(10)]
    //     [DoubleEditor]
    //     [Aggregate(typeof(StockSummaryOrderAggregate))]
    //     public double OnOrder { get; set; }
    //     
    //     [EditorSequence(11)]
    //     [Formula(typeof(StockSummaryTotalStockFormula))]
    //     [DoubleEditor]
    //     public double TotalStock { get; set; }
    //
    //     [EditorSequence(12)]
    //     [DoubleEditor]
    //     [Formula(typeof(StockSummaryCalculatedField))]
    //     public double BalanceAvailable { get; set; }
    //
    //     //[EditorSequence(13)]
    //     //[DoubleEditor]
    //     //[Formula(typeof(StockSummaryCalculatedField))]
    //     //public double JobBOM { get; set; }
    //
    //     [EditorSequence(14)]
    //     [NullEditor]
    //     [Formula(typeof(StockSummaryCalculatedStringField))]
    //     public string Issues { get; set; }
    // }
}