using System.Linq;
using BST.LionMarrodentWorkers.Extensions;
using BST.LionMarrodentWorkers.Triggery;
using Soneta.Business;
using Soneta.Business.Db;
using Soneta.Handel;
using Soneta.Towary;
using Soneta.Types;

[assembly: ModuleType("DiscountTriggerModule", typeof(DiscountTriggerModule), 4, "", 0)]

namespace BST.LionMarrodentWorkers.Triggery
{
    public sealed class DiscountTriggerModule : Module
    {
        //CTOR
        public DiscountTriggerModule(Session session) : base(session)
        {
            DiscountTrigger trigger = new DiscountTrigger();
        }
    }

    public sealed class DiscountTrigger
    {
        //CTOR
        static DiscountTrigger()
        {
            HandelModule.PozycjaDokHandlowegoSchema.AddTowarAfterEdit(ProductEdit);
        }

        //Private
        private static void ProductEdit(HandelModule.PozycjaDokHandlowegoRow row)
        {
            if (row.Session.Login.Operator.Features.GetBool("CZ_User") && row.Dokument.Bufor && row.Towar != null && row.Dokument.Kontrahent != null)
            {
                if (row.Towar.HlavniSkupina() && row.Dokument.IsCzechSaleOrder())
                {
                    row.Rabat = Percent.Zero;
                }
                else
                {
                          //Variables
                    BusinessModule bm = BusinessModule.GetInstance(row.Session);
                    TowaryModule tm = TowaryModule.GetInstance(row.Session);
                    Percent max = Percent.Zero;

                    //Check product group
                    DictionaryItem item = bm.Dictionary.CreateView()
                        ?.OriginalSubTable[new FieldCondition.Equal("Category", "F.CZ_GroupOfGood")]
                        ?.Cast<DictionaryItem>()
                        ?.FirstOrDefault(x=> x.Value == row.Towar.Features.GetString("CZ_GroupOfGoods").Replace(@"\", string.Empty));

                    if (item != null)
                    {
                        SubTable<CenaGrupowa> discounts = tm.CenyGrupowe.WgGrupaTowarowa[item, row.Dokument.Kontrahent];

                        if (discounts != null && discounts.Any())
                        {
                            Percent tempMax = discounts.Max(x => x.Rabat);

                            if (tempMax > max)
                            {
                                max = tempMax;
                            }
                        }
                    }

                    //Check manufacturer
                    DictionaryItem item2 =  bm.Dictionary.CreateView()
                        ?.OriginalSubTable[new FieldCondition.Equal("Category", "F.CZ_Manufacture")]
                        ?.Cast<DictionaryItem>()
                        ?.FirstOrDefault(x=> x.Value == row.Towar.Features.GetString("CZ_Manufacturer").Replace(@"\", string.Empty));

                    if (item2 != null)
                    {
                        SubTable<CenaGrupowa> discounts = tm.CenyGrupowe.WgGrupaTowarowa[item2, row.Dokument.Kontrahent];

                        if (discounts != null && discounts.Any())
                        {
                            Percent tempMax = discounts.Max(x => x.Rabat);

                            if (tempMax > max)
                            {
                                max = tempMax;
                            }
                        }
                    }

                    //Check period general
                    RowCondition rc = new FieldCondition.GreaterEqual("PrzecenaOkresowa.Okres.To", row.Dokument.Data);
                    rc &= new FieldCondition.LessEqual("PrzecenaOkresowa.Okres.From", row.Dokument.Data);
                    rc &= new FieldCondition.Null("PrzecenaOkresowa.Kontrahent", true);

                    SubTable<PrzecenaOkresowaTowaru> discounts2 = tm.PrzecenyOkresTwr.WgTowar[row.Towar][rc];

                    if (discounts2 != null && discounts2.Any)
                    {
                        foreach (PrzecenaOkresowaTowaru discount in discounts2)
                        {
                            if (discount.Rabat > max)
                            {
                                max = discount.Rabat;
                            }
                        }
                    }

                    //Check manufacturer and period individual
                    RowCondition rc2 = new FieldCondition.GreaterEqual("Okres.To", row.Dokument.Data);
                    rc2 &= new FieldCondition.LessEqual("Okres.From", row.Dokument.Data);

                    SubTable<PrzecenaOkresowa> discounts3 = tm.PrzecenyOkres.WgKontrahent[row.Dokument.Kontrahent][rc2];

                    if (discounts3 != null && discounts3.Any)
                    {
                        foreach (PrzecenaOkresowa discount in discounts3)
                        {
                            SubTable<PrzecenaOkresowaTowaru> productDiscounts = discount.PrzecenyTowarow[new FieldCondition.Equal("Towar.Guid", row.Towar.Guid)];

                            if (!productDiscounts.Any) continue;

                            Percent tempMax = productDiscounts.Max(x => x.Rabat);

                            if (tempMax > max)
                            {
                                max = tempMax;
                            }
                        }
                    }

                    if (row.Dokument.Kontrahent != null && row.Dokument.Kontrahent.Rabat > max)
                    {
                        max = row.Dokument.Kontrahent.Rabat;
                    }

                    if (max != Percent.Zero && row.Rabat != max)
                    {
                        row.Rabat = max;
                    }
                }
            }
        }
    }
}