using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using gehGassi.Common;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Localization;
using Microsoft.Extensions.Options;

namespace gehGassi.Web.Models
{
    /// <summary>
    /// Viewmodel für einen Kunden
    /// </summary>
    public class CustomerVm
    {
        /// <summary>
        /// Id des Kunden
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        public long Id { get; set; }

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

        /// <summary>
        /// Typ des Kunden
        /// </summary>
        [Display(Name = "Customer_TypeId")]
        public long? TypeId { get; set; }

        /// <summary>
        /// Branche des Kunden
        /// </summary>
        [Display(Name = "Customer_BranchId")]
        public string BranchId { get; set; }

        /// <summary>
        /// Optional: Liste der Branchen für eine Listung
        /// </summary>
        [Display(Name = "Customer_BranchesJson", Description = "Customer_BranchesJson_Desc")]
        public string BranchesJson { get; set; }

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

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

        /// <summary>
        /// Handelt es sich um einen Firmenkunden?
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Customer_IsCompany")]
        public bool IsCompany { get; set; }

        /// <summary>
        /// UID Nummer
        /// </summary>
        [Remote("IsVatValid", "Common", AdditionalFields = "Address.CountryCode", ErrorMessage = "Err_Vat_Invalid", HttpMethod = "POST")]
        //[RequiredIf("IsCompany", true, ErrorMessage = "Err_Required")]
        [MaxLength(50, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Customer_Vat")]
        public string Vat { get; set; }

        /// <summary>
        /// Anrede / Titel
        /// </summary>
        [MaxLength(50, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Customer_Title")]
        public string Title { get; set; }

        /// <summary>
        /// Optinaler Vorname der Kontaktperson
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [MaxLength(100, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Customer_FirstName")]
        public string FirstName { get; set; }

        /// <summary>
        /// Optinaler Nachname der Kontaktperson
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [MaxLength(100, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Customer_LastName")]
        public string LastName { get; set; }

        /// <summary>
        /// Kontaktdaten
        /// </summary>
        public ContactEmailRequiredVm Contact { get; set; }

        /// <summary>
        /// Adressdaten
        /// </summary>
        public AddressRequiredVm Address { get; set; }

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

        /// <summary>
        /// Sprachen die für einen Kunden verfügbar sind.
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [MaxLength(256, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Customer_Languages", Description = "Customer_Languages_Desc")]
        public string Languages { get; set; }

        /// <summary>
        /// Optional - Logo des Unternehmens
        /// </summary>
        [MaxLength(500, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Customer_Logo")]
        public string Logo { get; set; }

        #region finance

        /// <summary>
        /// Auf- oder Abschlag für eine Listung in Prozent
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Range(-100.0, 100.0, ErrorMessage = "Err_Range")]
        [Display(Name = "Customer_MarkupListing", Description = "Customer_Markup_Desc")]
        public decimal MarkupListing { get; set; }

        /// <summary>
        /// Auf- oder Abschlag für eine Werbung in Prozent
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Range(-100.0, 100.0, ErrorMessage = "Err_Range")]
        [Display(Name = "Customer_MarkupAdvertisement", Description = "Customer_Markup_Desc")]
        public decimal MarkupAdvertisement { get; set; }

        /// <summary>
        /// Auf- oder Abschlag für eine Pin-Werbung in Prozent
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Range(-100.0, 100.0, ErrorMessage = "Err_Range")]
        [Display(Name = "Customer_MarkupPin", Description = "Customer_Markup_Desc")]
        public decimal MarkupPin { get; set; }

        /// <summary>
        /// Auf- oder Abschlag für eine Banner-Werbung in Prozent
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Range(-100.0, 100.0, ErrorMessage = "Err_Range")]
        [Display(Name = "Customer_MarkupBanner", Description = "Customer_Markup_Desc")]
        public decimal MarkupBanner { get; set; }

        /// <summary>
        /// Zahlen auf Rechnung allgemein möglich?
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Customer_PaymentOnInvoice", Description = "Customer_PaymentOnInvoice_Desc")]
        public bool PaymentOnInvoice { get; set; }

        #endregion

        #region MangoPay

        /// <summary>
        /// ID des AppUsers beim Payment-Provider erstellt
        /// </summary>
        [Display(Name = "Customer_MangopayIdCreated")]
        public bool MangopayIdCreated { get; set; }

        /// <summary>
        /// Offizieller Firmenname für MangoPay
        /// </summary>
        [MaxLength(256, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Customer_MangopayCompanyName")]
        public string MangopayCompanyName { get; set; }

        /// <summary>
        /// Email Adresse für MangoPay
        /// </summary>
        [MaxLength(255, ErrorMessage = "Err_StringLength_Max")]
        [EmailAddress(ErrorMessage = "Err_InvalidEmail")]
        [Display(Name = "Customer_MangopayEmail")]
        public string MangopayEmail { get; set; }

        /// <summary>
        /// Adressdaten
        /// </summary>
        [Display(Name = "Customer_MangopayAddress")]
        public AddressVm MangopayAddress { get; set; }

        /// <summary>
        /// Company registration number - Handelsregisternummer
        /// </summary>
        [MaxLength(50, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Customer_MangopayRegistrationNumber")]
        public string MangopayRegistrationNumber { get; set; }

        /// <summary>
        /// Vorname der Kontaktperson Mangopay
        /// </summary>
        [MaxLength(100, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Customer_MangopayContactFirstName")]
        public string MangopayContactFirstName { get; set; }

        /// <summary>
        /// Nachname der Kontaktperson Mangopay
        /// </summary>
        [MaxLength(100, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Customer_MangopayContactLastName")]
        public string MangopayContactLastName { get; set; }

        /// <summary>
        /// Email Adresse der Kontaktperson Mangopay
        /// </summary>
        [MaxLength(255, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Customer_MangopayContactEmail")]
        public string MangopayContactEmail { get; set; }

        /// <summary>
        /// Geburtsdatum der Kontaktperson Mangopay
        /// </summary>
        [Display(Name = "Customer_MangopayContactBirthdate")]
        public DateTimeOffset? MangopayContactBirthdate { get; set; }

        /// <summary>
        /// Nationalität der Kontaktperson Mangopay ISO2
        /// </summary>
        [MaxLength(2, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Customer_MangopayContactNationality")]
        public string MangopayContactNationality { get; set; }

        /// <summary>
        /// Land Hauptwohnsitz ISO2
        /// </summary>
        [MaxLength(2, ErrorMessage = "Err_StringLength_Max")]
        [Display(Name = "Customer_MangopayContactMainResidenceCode")]
        public string MangopayContactMainResidenceCode { get; set; }

        /// <summary>
        /// Wurden die Datenschutzbedingungen des Paymentproviders akzeptiert
        /// </summary>
        [Required(ErrorMessage = "Err_Required")]
        [Display(Name = "Customer_MangopayTermsAccepted")]
        public bool MangopayTermsAccepted { get; set; }

        /// <summary>
        /// Wann wurden die Datenschutzbedingungen des Paymentproviders akzeptiert?
        /// </summary>
        [Display(Name = "Customer_MangopayTermsAcceptedDate")]
        public DateTimeOffset? MangopayTermsAcceptedDate { get; set; }

        #endregion

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

        /// <summary>
        /// Erstellt eine Instanz
        /// </summary>
        public CustomerVm()
        {
            Address = new AddressRequiredVm();
            Contact = new ContactEmailRequiredVm();
            MangopayAddress = new AddressVm();
        }
    }

    /// <summary>
    /// Viewmodel für das Bearbeiten & Anlegen eines Kunden
    /// </summary>
    public class CustomerCrudVm : CustomerVm, IValidatableObject
    {
        /// <summary>
        /// Typ des Kunden als Name
        /// </summary>
        public string TypeName { get; set; }

        /// <summary>
        /// Branche - Name
        /// </summary>
        public string BranchName { get; set; }

        /// <summary>
        /// Land-Name
        /// </summary>
        public string CountryName { get; set; }

        /// <summary>
        /// Bundesland-Name
        /// </summary>
        public string StateName { get; set; }

        /// <summary>
        /// Land-Name für Mangopay
        /// </summary>
        public string MangopayCountryName { get; set; }

        /// <summary>
        /// Bundesland-Name für Mangopay
        /// </summary>
        public string MangopayStateName { get; set; }

        /// <summary>
        /// Nationalität-Name für Mangopay
        /// </summary>
        public string MangopayContactNationalityName { get; set; }

        /// <summary>
        /// Hauptwohnsitz-Name für Mangopay
        /// </summary>
        public string MangopayContactMainResidenceCodeName { get; set; }

        /// <summary>
        /// Stellt fest ob das Model gültig ist.
        /// </summary>
        /// <returns>
        /// Liste von Fehlermeldungen, wenn Validierungs-Fehler auftreten.
        /// </returns>
        /// <param name="validationContext">Validierungs-Kontext</param>
        public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
        {
            //Prüfen ob eine Zahlungsmöglichkeit aktiviert wurde
            if (IsCompany && Address != null && !string.IsNullOrWhiteSpace(Address.CountryCode))
            {
                var vatValidationSettings = validationContext.GetService(typeof(IOptions<VatValidationSettings>)) as IOptions<VatValidationSettings>;
                if (vatValidationSettings.Value.Countries.Contains(Address.CountryCode.ToUpper()))
                {
                    if (string.IsNullOrWhiteSpace(Vat))
                    {
                        var stringLocalizer = validationContext.GetService(typeof(IStringLocalizer<CustomerCrudVm>)) as IStringLocalizer<CustomerCrudVm>;
                        yield return new ValidationResult(stringLocalizer["Err_Vat_Missing"], new List<string> { "Vat" });
                    }
                }
            }
        }
    }

    /// <summary>
    /// Viewmodel für einen Kunden Listendarstellung
    /// </summary>
    public class CustomerListVm
    {
        /// <summary>
        /// Id des Kunden
        /// </summary>
        public long Id { get; set; }

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

        /// <summary>
        /// Typ des Kunden
        /// </summary>
        [Display(Name = "Customer_TypeId")]
        public long? TypeId { get; set; }

        /// <summary>
        /// Typ des Kunden als Name
        /// </summary>
        [Display(Name = "Customer_TypeId")]
        public string TypeName { get; set; }

        /// <summary>
        /// Branche des Kunden
        /// </summary>
        [Display(Name = "Customer_BranchId")]
        public string BranchId { get; set; }

        /// <summary>
        /// Branche des Kunden als Name
        /// </summary>
        [Display(Name = "Customer_BranchId")]
        public string BranchName { get; set; }

        /// <summary>
        /// Optional: Liste der Branchen für eine Listung
        /// </summary>
        public string BranchesJson { get; set; }

        /// <summary>
        /// Kundennummer
        /// </summary>
        [Display(Name = "Customer_Number")]
        public string Number { get; set; }

        /// <summary>
        /// Name des Kunden 
        /// </summary>
        [Display(Name = "Customer_Name", Description = "Customer_Name_Desc")]
        public string Name { get; set; }

        /// <summary>
        /// UID Nummer
        /// </summary>
        [Display(Name = "Customer_Vat")]
        public string Vat { get; set; }

        /// <summary>
        /// Land der Adresse
        /// </summary>
        public string CountryCode { get; set; }

        /// <summary>
        /// Sprachen die für einen Kunden verfügbar sind.
        /// </summary>
        [Display(Name = "Customer_Languages")]
        public string Languages { get; set; }

        /// <summary>
        /// Optional - Logo des Unternehmens
        /// </summary>
        [Display(Name = "Customer_Logo")]
        public string Logo { get; set; }

        /// <summary>
        /// Zahlen auf Rechnung allgemein möglich?
        /// </summary>
        [Display(Name = "Customer_PaymentOnInvoice")]
        public bool PaymentOnInvoice { get; set; }

        /// <summary>
        /// ID des AppUsers beim Payment-Provider erstellt
        /// </summary>
        [Display(Name = "Customer_MangopayIdCreated")]
        public bool MangopayIdCreated { get; set; }

        /// <summary>
        /// ID des AppUsers beim Payment-Provider
        /// </summary>
        [Display(Name = "Customer_MangopayPaymentId")]
        public string MangopayPaymentId { get; set; }

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