using DevExpress.ExpressApp.ConditionalAppearance;
using DevExpress.ExpressApp.Model;
using DevExpress.Persistent.Base;
using DevExpress.Persistent.BaseImpl;
using DevExpress.Persistent.Validation;
using DevExpress.Xpo;
using FileSystemData.BusinessObjects;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Linq;
using System.Runtime.Serialization;
using System.Text;

namespace DurnyklyYol.Module.BusinessObjects
{
    [DefaultClassOptions, NavigationItem("Clients & Goods")]
    [ImageName("BO_Product")]
    [DefaultProperty(nameof(No))]
    [Appearance("RedBackground", Priority =1, AppearanceItemType = "ViewItem", TargetItems = "Credit", Criteria = "Credit > 0", BackColor = "Red", FontColor = "White")]
    [Appearance("StrikeBackground", Priority = 2, AppearanceItemType = "ViewItem", TargetItems = "Credit", Criteria = "Credit = 0", BackColor = "Green",FontColor = "White")]
    //[DefaultListViewOptions(MasterDetailMode.ListViewOnly, false, NewItemRowPosition.None)]
    //[Persistent("DatabaseTableName")]
    // Specify more UI options using a declarative approach (https://documentation.devexpress.com/#eXpressAppFramework/CustomDocument112701).
    public class Goods : BaseObject
    { // Inherit from a different class to provide a custom primary key, concurrency and deletion behavior, etc. (https://documentation.devexpress.com/eXpressAppFramework/CustomDocument113146.aspx).
        // Use CodeRush to create XPO classes and properties with a few keystrokes.
        // https://docs.devexpress.com/CodeRushForRoslyn/118557
        public Goods(Session session)
            : base(session)
        {
        }
        protected override void OnSaving()
        {
            base.OnSaving();
            if (Session is not NestedUnitOfWork
                && (Session.DataLayer != null)
                && Session.IsNewObject(this)
                && (Session.ObjectLayer is SimpleObjectLayer)
                //OR
                //&& !(Session.ObjectLayer is DevExpress.ExpressApp.Security.ClientServer.SecuredSessionObjectLayer)
                && string.IsNullOrEmpty(No))
            {
                int nextSequence = DistributedIdGeneratorHelper.Generate(Session.DataLayer, this.GetType().FullName, "ERPrefix");
                No = string.Format("PA-{0:D6}", nextSequence);
            }
        }
        public override void AfterConstruction()
        {
            base.AfterConstruction();
            State = GoodsState.Reserved;
            CreatedAt = DateTime.Now;
        }

        [Size(SizeAttribute.DefaultStringMappingFieldSize), NonCloneable, Indexed(Unique = true), ReadOnly(true), VisibleInDetailView(false)]
        public string No
        {
            get => no;
            set => SetPropertyValue(nameof(No), ref no, value);
        }

        [Index(1), VisibleInLookupListView(true)]
        [Size(SizeAttribute.DefaultStringMappingFieldSize), RuleRequiredField(DefaultContexts.Save)]
        public string Name
        {
            get => name;
            set => SetPropertyValue(nameof(Name), ref name, value);
        }

        [VisibleInDetailView(false)]
        [ModelDefault("DisplayFormat", "{0:g}"), ModelDefault("EditMask", "g")]
        public DateTime CreatedAt
        {
            get => createdAt;
            set => SetPropertyValue(nameof(CreatedAt), ref createdAt, value);
        }

        [RuleValueComparison(ValueComparisonType.GreaterThan, 0), Index(2)]
        public uint PlaceCount
        {
            get => placeCount;
            set => SetPropertyValue(nameof(PlaceCount), ref placeCount, value);
        }

        [RuleValueComparison(ValueComparisonType.GreaterThan, 0), Index(3)]
        public uint PackageCount
        {
            get => packageCount;
            set => SetPropertyValue(nameof(PackageCount), ref packageCount, value);
        }

        [ModelDefault("DisplayFormat", "{0:#,##0.00 }"), ModelDefault("EditMask", "############,##0.00")]
        [ImmediatePostData, Index(4), RuleValueComparison(ValueComparisonType.GreaterThan, 0)]
        public decimal Volume
        {
            get => volume;
            set => SetPropertyValue(nameof(Volume), ref volume, value);
        }

        [ModelDefault("DisplayFormat", "${0:#,##0.00}"), ModelDefault("EditMask", "$############,##0.00"), Index(5)]
        public decimal Price
        {
            get => price;
            set => SetPropertyValue(nameof(Price), ref price, value);
        }
        [PersistentAlias("Price * Volume"), ModelDefault("DisplayFormat", "${0:#,##0.00 }"), Index(6)]
        public decimal TotalPrice => Convert.ToDecimal(EvaluateAlias(nameof(TotalPrice)));


        [Index(7)]
        [Aggregated, ExpandObjectMembers(ExpandObjectMembers.Never), ImmediatePostData, VisibleInListView(false)]
        public FileSystemStoreObject Image1
        {
            get { return GetPropertyValue<FileSystemStoreObject>("Image1"); }
            set { SetPropertyValue<FileSystemStoreObject>("Image1", value); }
        }

        [Index(9)]
        [Aggregated, ExpandObjectMembers(ExpandObjectMembers.Never), ImmediatePostData, VisibleInListView(false)]
        public FileSystemStoreObject Image2
        {
            get { return GetPropertyValue<FileSystemStoreObject>("Image2"); }
            set { SetPropertyValue<FileSystemStoreObject>("Image2", value); }
        }

        [Size(SizeAttribute.DefaultStringMappingFieldSize), Index(10)]
        public string ShopNo
        {
            get => shopNo;
            set => SetPropertyValue(nameof(ShopNo), ref shopNo, value);
        }

        [Index(11)]
        public Warehouse ReceivedPoint
        {
            get => receivedPoint;
            set => SetPropertyValue(nameof(ReceivedPoint), ref receivedPoint, value);
        }
        
        [Index(12)]
        public DateTime? ReceivedAt
        {
            get => receivedAt;
            set => SetPropertyValue(nameof(ReceivedAt), ref receivedAt, value);
        }
        [Index(13)]
        public Warehouse DestinationPoint
        {
            get => destinationPoint;
            set => SetPropertyValue(nameof(DestinationPoint), ref destinationPoint, value);
        }

        [Index(14), VisibleInListView(false)]
        public DateTime? DeliveredAt
        {
            get => deliveredAt;
            set => SetPropertyValue(nameof(DeliveredAt), ref deliveredAt, value);
        }

        [Index(15), VisibleInListView(false)]
        [Size(SizeAttribute.DefaultStringMappingFieldSize)]
        public string Note
        {
            get => note;
            set => SetPropertyValue(nameof(Note), ref note, value);
        }

        [Association("Goods-Payments"), Aggregated]
        public XPCollection<Payment> Payments
        {
            get
            {
                return GetCollection<Payment>(nameof(Payments));
            }
        }

        [Index(0), VisibleInLookupListView(true), VisibleInDetailView(true), IgnoreDataMember]
        [Association("Client-Goods"), RuleRequiredField(DefaultContexts.Save)]
        public Client Client
        {
            get => client;
            set => SetPropertyValue(nameof(Client), ref client, value);
        }

        [VisibleInDetailView(false)]
        [ModelDefault("DisplayFormat", "${0:#,##0.00}")]
        public decimal TotalPayment => Payments.Sum(ps => ps.Amount);
        [VisibleInDetailView(false)]
        [ModelDefault("DisplayFormat", "${0:#,##0.00}")]
        public decimal Credit => TotalPrice - TotalPayment;


        public GoodsState State
        {
            get => state;
            set => SetPropertyValue(nameof(State), ref state, value);
        }

        string note;
        DateTime? deliveredAt;
        Warehouse destinationPoint;
        Warehouse receivedPoint;
        string shopNo;
        DateTime createdAt;
        GoodsState state;
        uint packageCount;
        DateTime? receivedAt;
        decimal price;
        uint placeCount;
        decimal volume;
        string name;
        string no;
        Client client;
        Cargo cargo;

        [Association("Cargo-Goods")]
        public Cargo Cargo
        {
            get => cargo;
            set => SetPropertyValue(nameof(Cargo), ref cargo, value);
        }
    }

    public enum GoodsState
    {
        Reserved,
        Received,
        Delivered,
    }
}