using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Globalization;
using Newtonsoft.Json;

namespace gehGassi.Web.Models
{
    /// <summary>
    /// Viewmodel für eine Bestellung
    /// </summary>
    public class OrderVm
    {
        /// <summary>
        /// Id der Bestellung
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        public long Id { get; set; }

        /// <summary>
        /// Spezial-ID
        /// </summary>
        [Display(Name = "Order_UniqueId")]
        public Guid UniqueId { get; set; }

        /// <summary>
        /// Welcher "Kunden-Typ" hat die Bestellung erstellt?
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Order_OrderSource")]
        public OrderSourceVm OrderSource { get; set; }

        #region App-User

        /// <summary>
        /// Id des App-Users
        /// </summary>
        [Display(Name = "Order_DogOwnerId")]
        public string AppUserId { get; set; }

        /// <summary>
        /// Name des App-Userss (Vor- und Nachname)
        /// </summary>
        [MaxLength(250, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Order_DogOwnerName")]
        public string AppUserName { get; set; }

        /// <summary>
        /// App-Users - Firma
        /// </summary>
        [MaxLength(200, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Order_DogOwnerCompany")]
        public string AppUserCompany { get; set; }

        #endregion

        #region Kunde

        /// <summary>
        /// Kunde
        /// </summary>
        [Display(Name = "Order_CustomerId")]
        public long? CustomerId { get; set; }

        /// <summary>
        /// Name des Kunden / Vertriebspartners
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [MaxLength(200, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Order_CustomerName")]
        public string CustomerName { get; set; }

        #endregion

        /// <summary>
        /// Bestellnummer
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [MaxLength(100, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Order_Number")]
        public string Number { get; set; }

        /// <summary>
        /// Zähler für Bestell-Nummer
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Order_Counter")]
        public long Counter { get; set; }

        /// <summary>
        /// Zwischensumme Netto
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Order_Subtotal")]
        public decimal Subtotal { get; set; }

        /// <summary>
        /// Zwischensumme Brutto
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Order_SubtotalGross")]
        public decimal SubtotalGross { get; set; }

        /// <summary>
        /// Gesamt-Preis Netto
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Order_Total")]
        public decimal Total { get; set; }

        /// <summary>
        /// Gesamt-Preis Brutto
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Order_TotalGross")]
        public decimal TotalGross { get; set; }

        /// <summary>
        /// Versandkosten Netto
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Order_Shipment")]
        public decimal Shipment { get; set; }

        /// <summary>
        /// Versandkosten Brutto
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Order_ShipmentGross")]
        public decimal ShipmentGross { get; set; }

        /// <summary>
        /// Status der Bestellung
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Order_OrderStatus")]
        public OrderStatusVm OrderStatus { get; set; }

        /// <summary>
        /// Zahlungsart
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Order_PaymentType")]
        public PaymentTypeVm PaymentType { get; set; }

        /// <summary>
        /// Zahlungsstatus
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Order_PaymentStatus")]
        public PaymentStatusVm PaymentStatus { get; set; }

        /// <summary>
        /// Versandart
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Order_ShipmentType")]
        public ShipmentTypeVm ShipmentType { get; set; }

        /// <summary>
        /// Versandstatus
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Order_ShipmentStatus")]
        public ShipmentStatusVm ShipmentStatus { get; set; }

        /// <summary>
        /// Versanddatum
        /// </summary>
        [Display(Name = "Order_ShipmentDate")]
        public DateTimeOffset? ShipmentDate { get; set; }

        /// <summary>
        /// Lieferadresse
        /// </summary>
        [Display(Name = "Order_DeliveryAddress")]
        public OrderAddressVm DeliveryAddress { get; set; }

        /// <summary>
        /// REchnungsadresse
        /// </summary>
        [Display(Name = "Order_BillingAddress")]
        public OrderAddressVm BillingAddress { get; set; }

        /// <summary>
        /// Ist die Liefer-Adresse auch die Rechnungsadresse?
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Order_DeliveryAddressIsBilling")]
        public bool DeliveryAddressIsBilling { get; set; }

        /// <summary>
        /// Anmerkungen
        /// </summary>
        [MaxLength(1000, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Order_Comment")]
        public string Comment { get; set; }

        /// <summary>
        /// Steuerstufen mit Werten als Json
        /// </summary>
        [Display(Name = "Order_TaxRatesJson")]
        public string TaxRatesJson { get; set; }

        /// <summary>
        /// Benutzer-Einstellungen
        /// </summary>
        [Display(Name = "Order_TaxRates")]
        public Dictionary<decimal, decimal> TaxRates
        {
            get
            {
                if (string.IsNullOrWhiteSpace(TaxRatesJson))
                    return new Dictionary<decimal, decimal>();
                var taxRates = JsonConvert.DeserializeObject<Dictionary<decimal, decimal>>(TaxRatesJson, new JsonSerializerSettings() { Culture = CultureInfo.CurrentCulture });
                return taxRates;
            }
            set
            {
                var settings = JsonConvert.SerializeObject(value, new JsonSerializerSettings() { Culture = CultureInfo.InvariantCulture });
                TaxRatesJson = settings;
            }
        }

        /// <summary>
        /// Datum der Erstellung
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Common_Created")]
        public DateTimeOffset Created { get; set; }

        /// <summary>
        /// Datum der letzten Änderung
        /// </summary>
        [Display(Name = "Common_LastUpdate")]
        public DateTimeOffset? LastUpdate { get; set; }

        /// <summary>
        /// Wann wurden die AGB akzeptiert
        /// </summary>
        [Display(Name = "Order_AcceptTermsAndConditionsDate")]
        public DateTimeOffset? AcceptTermsAndConditionsDate { get; set; }

        /// <summary>
        /// Wann wurden die Datenschutzbestimmung akzeptiert
        /// </summary>
        [Display(Name = "Order_AcceptGdprDate")]
        public DateTimeOffset? AcceptGdprDate { get; set; }

        /// <summary>
        /// Wurde die Bestellung  gelöscht?
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Common_Deleted")]
        public bool Deleted { get; set; }

        #region PayPal & Klarna Info

        /// <summary>
        /// Datum der Bezahlung via PayPal oder Klarna
        /// </summary>
        [Display(Name = "Order_PaymentDate")]
        public DateTimeOffset? PaymentDate { get; set; }

        /// <summary>
        /// ID der PayPal-Order wenn Zahlung mittels PayPal
        /// </summary>
        [MaxLength(200, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Order_PayPalOrderId")]
        public string PayPalOrderId { get; set; }

        /// <summary>
        /// ID der Klarna-Order wenn Zahlung mittels Klarna
        /// </summary>
        [MaxLength(200, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Order_KlarnaOrderId")]
        public string KlarnaOrderId { get; set; }

        /// <summary>
        /// Datum wann die "Alles versendet" Info an Klarna übergeben wurde
        /// </summary>
        [Display(Name = "Order_KlarnaShipmentSentDate")]
        public DateTimeOffset? KlarnaShipmentSentDate { get; set; }

        /// <summary>
        /// Gibt an ob beim Melden des Versands ein Problem aufgetreten ist und diese Bestellung ignoriert werden soll
        /// </summary>
        [Display(Name = "Order_KlarnaShipmentError")]
        public bool KlarnaShipmentError { get; set; }

        /// <summary>
        /// Optional: Infos seitens des PaymentProviders
        /// </summary>
        [Display(Name = "Order_PaymentInfo")]
        public string PaymentInfo { get; set; }

        #endregion

        /// <summary>
        /// Liste der Artikel
        /// </summary>
        public List<OrderItemVm> Items { get; set; }

        /// <summary>
        /// Erstellt eine Instanz
        /// </summary>
        public OrderVm()
        {
            DeliveryAddress = new OrderAddressVm();
            BillingAddress = new OrderAddressVm();
            Items = new List<OrderItemVm>();
        }
    }

    /// <summary>
    /// Viewmodel für eine Adresse für eine Bestellung
    /// </summary>
    public class OrderAddressVm
    {
        /// <summary>
        /// Titel
        /// </summary>
        [MaxLength(100, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "OrderAddress_Title")]
        public string Title { get; set; }

        /// <summary>
        /// Vorname
        /// </summary>
        [MaxLength(100, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "OrderAddress_FirstName")]
        public string FirstName { get; set; }

        /// <summary>
        /// Nachname
        /// </summary>
        [MaxLength(100, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "OrderAddress_LastName")]
        public string LastName { get; set; }

        /// <summary>
        /// Company
        /// </summary>
        [MaxLength(200, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "OrderAddress_Company")]
        public string Company { get; set; }

        /// <summary>
        /// UID Nummer
        /// </summary>
        [MaxLength(50, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "OrderAddress_Vat")]
        public string Vat { get; set; }

        /// <summary>
        /// Optionale Adresszeile 1
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [MaxLength(100, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "OrderAddress_AddressLine1")]
        public string AddressLine1 { get; set; }

        /// <summary>
        /// Optionale Adresszeile 2
        /// </summary>
        [MaxLength(100, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "OrderAddress_AddressLine2")]
        public string AddressLine2 { get; set; }

        /// <summary>
        /// Optional: Stadt / Ort
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [MaxLength(100, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "OrderAddress_City")]
        public string City { get; set; }

        /// <summary>
        /// Optinale PLZ
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [MaxLength(20, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "OrderAddress_Zip")]
        public string Zip { get; set; }

        /// <summary>
        /// Bundesland / Staat
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [MaxLength(25, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "OrderAddress_State")]
        public string State { get; set; }

        /// <summary>
        /// ISO2 Ländercode
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [MaxLength(2, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "OrderAddress_CountryCode")]
        public string CountryCode { get; set; }

        public string GetNameForPayPal()
        {
            if (!string.IsNullOrWhiteSpace(Company))
                return Company;
            return $"{FirstName} {LastName}";
        }
    }

    /// <summary>
    /// Viewmodel für einen Artikel in einer Bestellung
    /// </summary>
    public class OrderItemVm
    {
        /// <summary>
        /// Id des Bestell-Items
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        public long Id { get; set; }

        /// <summary>
        /// Id der Bestellung
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "OrderItem_OrderId")]
        public long OrderId { get; set; }

        /// <summary>
        /// Id des Artikels
        /// </summary>
        [Display(Name = "OrderItem_ProductId")]
        public int? ProductId { get; set; }

        /// <summary>
        /// Id der Produktkategorie
        /// </summary>
        [Display(Name = "OrderItem_ProductCategoryId")]
        public int? ProductCategoryId { get; set; }

        /// <summary>
        /// Name des Artikels
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [MaxLength(200, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "OrderItem_Name")]
        public string Name { get; set; }

        /// <summary>
        /// Name des Artikels in Standardsprache
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [MaxLength(200, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "OrderItem_NameDefault")]
        public string NameDefault { get; set; }

        /// <summary>
        /// Artikelnummer
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [MaxLength(100, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "OrderItem_Sku")]
        public string Sku { get; set; }

        /// <summary>
        /// Typ
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "OrderItem_ProductType")]
        public ProductTypeVm ProductType { get; set; }

        /// <summary>
        /// Id einer Listung, Werbung, Banner, Pin im Draft-Mode
        /// </summary>
        [MaxLength(128, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "OrderItem_ItemId")]
        public string ItemId { get; set; }

        /// <summary>
        /// Id der Zugeordneten Steuer
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "OrderItem_TaxRateId")]
        public int TaxRateId { get; set; }

        /// <summary>
        /// Gibt an ob das Produkt von der Steuer ausgenommen ist
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "OrderItem_IsTaxExempt")]
        public bool IsTaxExempt { get; set; }

        /// <summary>
        /// Gibt an ob das Produkt versendet werden kann
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "OrderItem_IsShipEnabled")]
        public bool IsShipEnabled { get; set; }

        /// <summary>
        /// Gibt an ob das Produkt Versandkostenbefreit ist
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "OrderItem_IsFreeShipping")]
        public bool IsFreeShipping { get; set; }

        /// <summary>
        /// Zusatzversandkosten netto
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "OrderItem_AdditionalShippingCharge")]
        public decimal AdditionalShippingCharge { get; set; }

        /// <summary>
        /// Stückzahl
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "OrderItem_Quantity")]
        public int Quantity { get; set; }

        /// <summary>
        /// Einzel-Preis Netto
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "OrderItem_Price")]
        public decimal Price { get; set; }

        /// <summary>
        /// Einzel-Preis Brutto
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "OrderItem_PriceGross")]
        public decimal PriceGross { get; set; }

        /// <summary>
        /// Preis des Produktes netto für Produkte die 2 Preise benötigen
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "OrderItem_Price2")]
        public decimal Price2 { get; set; }

        /// <summary>
        /// Preis des Produktes brutto für Produkte die 2 Preise benötigen
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "OrderItem_Price2Gross")]
        public decimal Price2Gross { get; set; }

        /// <summary>
        /// Gesamt-Preis Netto
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "OrderItem_Total")]
        public decimal Total { get; set; }

        /// <summary>
        /// Gesamt-Preis Brutto
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "OrderItem_TotalGross")]
        public decimal TotalGross { get; set; }

        /// <summary>
        /// Gets or sets the weight
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "OrderItem_Weight")]
        public decimal Weight { get; set; }

        /// <summary>
        /// Gets or sets the length
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "OrderItem_Length")]
        public decimal Length { get; set; }

        /// <summary>
        /// Gets or sets the width
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "OrderItem_Width")]
        public decimal Width { get; set; }

        /// <summary>
        /// Gets or sets the height
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "OrderItem_Height")]
        public decimal Height { get; set; }

        /// <summary>
        /// Datum der Erstellung
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Common_Created")]
        public DateTimeOffset Created { get; set; }

        /// <summary>
        /// Datum der letzten Änderung
        /// </summary>
        [Display(Name = "Common_LastUpdate")]
        public DateTimeOffset? LastUpdate { get; set; }

        /// <summary>
        /// Zusatzinfos zum Produkt wenn Listung, Banner usw.
        /// </summary>
        public string ProductSpecialInfo { get; set; }
    }

    /// <summary>
    /// Viewmodel für eine Bestellung Listendarstellung
    /// </summary>
    public class OrderListVm
    {
        /// <summary>
        /// Id der Bestellung
        /// </summary>
        public long Id { get; set; }

        /// <summary>
        /// Spezial-ID
        /// </summary>
        public Guid UniqueId { get; set; }

        /// <summary>
        /// Welcher "Kunden-Typ" hat die Bestellung erstellt?
        /// </summary>
        public OrderSourceVm OrderSource { get; set; }

        /// <summary>
        /// Welcher "Kunden-Typ" hat die Bestellung erstellt?
        /// </summary>
        public string OrderSourceText { get; set; }

        /// <summary>
        /// Name des Bestellers in Abhängigkeit der Bestellquelle
        /// </summary>
        public string OrderSourceName {
            get
            {
                switch (OrderSource)
                {
                    case OrderSourceVm.Customer:
                        return CustomerName;
                    case OrderSourceVm.AppUserDogOwner:
                        return AppUserName;
                    case OrderSourceVm.AppUserDogWalker:
                        return AppUserName;
                    case OrderSourceVm.AppUserBoth:
                        return AppUserName;
                    default:
                        throw new ArgumentOutOfRangeException();
                }
            }
        }

        #region Hundebesitzer

        /// <summary>
        /// Id des App-Users
        /// </summary>
        public string AppUserId { get; set; }

        /// <summary>
        /// Name des App-Userss (Vor- und Nachname)
        /// </summary>
        public string AppUserName { get; set; }

        /// <summary>
        /// App-Users - Firma
        /// </summary>
        public string AppUserCompany { get; set; }

        #endregion

        #region Kunde

        /// <summary>
        /// Kunde
        /// </summary>
        public long? CustomerId { get; set; }

        /// <summary>
        /// Name des Kunden / Vertriebspartners
        /// </summary>
        public string CustomerName { get; set; }

        #endregion

        /// <summary>
        /// Bestellnummer
        /// </summary>
        public string Number { get; set; }

        /// <summary>
        /// Zwischensumme Netto
        /// </summary>
        public decimal Subtotal { get; set; }

        /// <summary>
        /// Zwischensumme Brutto
        /// </summary>
        public decimal SubtotalGross { get; set; }

        /// <summary>
        /// Gesamt-Preis Netto
        /// </summary>
        public decimal Total { get; set; }

        /// <summary>
        /// Gesamt-Preis Brutto
        /// </summary>
        public decimal TotalGross { get; set; }

        /// <summary>
        /// Versandkosten Netto
        /// </summary>
        public decimal Shipment { get; set; }

        /// <summary>
        /// Versandkosten Brutto
        /// </summary>
        public decimal ShipmentGross { get; set; }

        /// <summary>
        /// Status der Bestellung
        /// </summary>
        public OrderStatusVm OrderStatus { get; set; }

        /// <summary>
        /// Status der Bestellung
        /// </summary>
        public string OrderStatusText { get; set; }

        /// <summary>
        /// Zahlungsart
        /// </summary>
        public PaymentTypeVm PaymentType { get; set; }

        /// <summary>
        /// Zahlungsart
        /// </summary>
        public string PaymentTypeText { get; set; }

        /// <summary>
        /// Zahlungsstatus
        /// </summary>
        public PaymentStatusVm PaymentStatus { get; set; }

        /// <summary>
        /// Zahlungsstatus
        /// </summary>
        public string PaymentStatusText { get; set; }

        /// <summary>
        /// Versandart
        /// </summary>
        public ShipmentTypeVm ShipmentType { get; set; }

        /// <summary>
        /// Versandart
        /// </summary>
        public string ShipmentTypeText { get; set; }

        /// <summary>
        /// Versandstatus
        /// </summary>
        public ShipmentStatusVm ShipmentStatus { get; set; }

        /// <summary>
        /// Versandstatus
        /// </summary>
        public string ShipmentStatusText { get; set; }

        /// <summary>
        /// Versanddatum
        /// </summary>
        public DateTimeOffset? ShipmentDate { get; set; }

        /// <summary>
        /// Datum der Erstellung
        /// </summary>
        public DateTimeOffset Created { get; set; }

        /// <summary>
        /// Datum der letzten Änderung
        /// </summary>
        public DateTimeOffset? LastUpdate { get; set; }

        /// <summary>
        /// Wurde die Bestellung  gelöscht?
        /// </summary>
        public bool Deleted { get; set; }
    }

    /// <summary>
    /// Hilfsklasse für das Aktualisieren eines der Status-Felder einer Bestellung
    /// </summary>
    public class UpdateOrderStatusVm
    {
        /// <summary>
        /// Name des Feldes
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        public string Name { get; set; }

        /// <summary>
        /// Id der Bestellung - UniqueID!!!
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        public string PrimaryKey { get; set; }

        /// <summary>
        /// Wert der gesetzt werden soll. Enum, aber als ZAHL!
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        public string Value { get; set; }
    }
}