using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using Bit.Core.Settings;

namespace Bit.Api.Models.Request
{
    public class BitPayInvoiceRequestModel : IValidatableObject
    {
        public Guid? UserId { get; set; }
        public Guid? OrganizationId { get; set; }
        public bool Credit { get; set; }
        [Required]
        public decimal? Amount { get; set; }
        public string ReturnUrl { get; set; }
        public string Name { get; set; }
        public string Email { get; set; }

        public BitPayLight.Models.Invoice.Invoice ToBitpayInvoice(GlobalSettings globalSettings)
        {
            var inv = new BitPayLight.Models.Invoice.Invoice
            {
                Price = Convert.ToDouble(Amount.Value),
                Currency = "USD",
                RedirectUrl = ReturnUrl,
                Buyer = new BitPayLight.Models.Invoice.Buyer
                {
                    Email = Email,
                    Name = Name
                },
                NotificationUrl = globalSettings.BitPay.NotificationUrl,
                FullNotifications = true,
                ExtendedNotifications = true
            };

            var posData = string.Empty;
            if (UserId.HasValue)
            {
                posData = "userId:" + UserId.Value;
            }
            else if (OrganizationId.HasValue)
            {
                posData = "organizationId:" + OrganizationId.Value;
            }

            if (Credit)
            {
                posData += ",accountCredit:1";
                inv.ItemDesc = "Bitwarden Account Credit";
            }
            else
            {
                inv.ItemDesc = "Bitwarden";
            }

            inv.PosData = posData;
            return inv;
        }

        public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
        {
            if (!UserId.HasValue && !OrganizationId.HasValue)
            {
                yield return new ValidationResult("User or Ooganization is required.");
            }
        }
    }
}