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

namespace Comal.Classes
{
    public class QuoteProposalExTax : CoreAggregate<QuoteProposal, QuoteProposalCostSheet, double>
    {
        public override Expression<Func<QuoteProposalCostSheet, double>> Aggregate => x => x.ExTax;

        public override AggregateCalculation Calculation => AggregateCalculation.Sum;

        public override Dictionary<Expression<Func<QuoteProposalCostSheet, object>>, Expression<Func<QuoteProposal, object>>> Links =>
            new Dictionary<Expression<Func<QuoteProposalCostSheet, object>>, Expression<Func<QuoteProposal, object>>>()
            {
                { QuoteProposalCostSheet => QuoteProposalCostSheet.Proposal.ID, QuoteProposal => QuoteProposal.ID }
            };
    }

    public class QuoteProposalTax : CoreAggregate<QuoteProposal, QuoteProposalCostSheet, double>
    {
        public override Expression<Func<QuoteProposalCostSheet, double>> Aggregate => x => x.Tax;

        public override AggregateCalculation Calculation => AggregateCalculation.Sum;

        public override Dictionary<Expression<Func<QuoteProposalCostSheet, object>>, Expression<Func<QuoteProposal, object>>> Links =>
            new Dictionary<Expression<Func<QuoteProposalCostSheet, object>>, Expression<Func<QuoteProposal, object>>>()
            {
                { QuoteProposalCostSheet => QuoteProposalCostSheet.Proposal.ID, QuoteProposal => QuoteProposal.ID }
            };
    }

    public class QuoteProposalIncTax : CoreAggregate<QuoteProposal, QuoteProposalCostSheet, double>
    {
        public override Expression<Func<QuoteProposalCostSheet, double>> Aggregate => x => x.IncTax;

        public override AggregateCalculation Calculation => AggregateCalculation.Sum;

        public override Dictionary<Expression<Func<QuoteProposalCostSheet, object>>, Expression<Func<QuoteProposal, object>>> Links =>
            new Dictionary<Expression<Func<QuoteProposalCostSheet, object>>, Expression<Func<QuoteProposal, object>>>()
            {
                { QuoteProposalCostSheet => QuoteProposalCostSheet.Proposal.ID, QuoteProposal => QuoteProposal.ID }
            };
    }
    
    [UserTracking(typeof(Quote))]
    public class QuoteProposal : Entity, IRemotable, IPersistent, IQuoteProposal, IOneToMany<Quote>, ILicense<QuotesManagementLicense>
    {
        
        [NullEditor]
        [EntityRelationship(DeleteAction.Cascade)]
        public QuoteLink Quote { get; set; }
        
        [DateEditor(Visible = Visible.Default)]
        [EditorSequence(1)]
        public DateTime Date { get; set; }
        
        [TextBoxEditor(Visible = Visible.Default)]
        [EditorSequence(2)]
        public string Description { get; set; }
        
        [EditorSequence(3)]
        public double Price { get; set; }
        
        [EditorSequence(4)]
        public TaxCodeLink TaxCode { get; set; }
        
        [CheckBoxEditor]
        [EditorSequence(5)]
        public bool Default { get; set; }

        
        private class ExTaxFormula : ComplexFormulaGenerator<QuoteProposal, double>
        {
            public override IComplexFormulaNode<QuoteProposal, double> GetFormula() => If<double>(
                    x => x.Property(x => x.Price),
                    Condition.Equals,
                    x => Constant(0.0))
                .Then(Aggregate<QuoteProposalCostSheet>(AggregateCalculation.Sum, x => x.Property(x => x.ExTax)).WithLink(x => x.Proposal.ID, x => x.ID))
                .Else(Property(x => x.Price));
        }
        
        [CurrencyEditor(Visible = Visible.Default, Editable = Editable.Hidden)]
        [ComplexFormula(typeof(ExTaxFormula))]
        public double ExTax { get; set; }
        
        private class TaxFormula : ComplexFormulaGenerator<QuoteProposal, double>
        {
            public override IComplexFormulaNode<QuoteProposal, double> GetFormula() => If<double>(
                    x => x.Property(x => x.Price),
                    Condition.Equals,
                    x => x.Constant(0.0))
                .Then(Aggregate<QuoteProposalCostSheet>(AggregateCalculation.Sum, x => x.Property(x => x.Tax)).WithLink(x => x.Proposal.ID, x => x.ID))
                .Else(Formula(FormulaOperator.Multiply, Property(x => x.Price), Property(x => x.TaxCode.Rate), Constant(0.01)));
        }
        
        [CurrencyEditor(Visible = Visible.Optional, Editable = Editable.Hidden)]
        [ComplexFormula(typeof(TaxFormula))]
        public double Tax { get; set; }

        private class IncTaxFormula : ComplexFormulaGenerator<QuoteProposal, double>
        {
            public override IComplexFormulaNode<QuoteProposal, double> GetFormula() => If<double>(
                    x => x.Property(x => x.Price),
                    Condition.Equals,
                    x => x.Constant(0.0))
                .Then(Aggregate<QuoteProposalCostSheet>(AggregateCalculation.Sum, x => x.Property(x => x.IncTax)).WithLink(x => x.Proposal.ID, x => x.ID))
                .Else(Formula(FormulaOperator.Add, Property(x => x.Price), Property(x => x.Tax)));
        }
        
        [CurrencyEditor(Visible = Visible.Optional, Editable = Editable.Hidden)]
        [ComplexFormula(typeof(IncTaxFormula))]
        public double IncTax { get; set; }
        
        [RichTextEditor(Visible = Visible.Hidden)]
        [EditorSequence("Preamble", 1)]
        public string Preamble { get; set; }

        [RichTextEditor(Visible = Visible.Hidden)]
        [EditorSequence("Summary", 1)]
        public string Summary { get; set; }
        
        [NullEditor]
        public long Sequence { get; set; }
        
    }
}