using System;
using CandyHouseBase.Enums;
using CandyHouseBase.Exceptions;
using CandyHouseBase.Extensions;
using CandyHouseBase.Infrastructure;

namespace CandyHouseBase.DataModels
{
    public class OrderDataModel : IValidation
    {
        public string Id { get; private set; }
        public string CustomerName { get; private set; } // Может быть null, если клиент разовый
        public DateTime OrderDate { get; private set; }
        public decimal TotalAmount { get; private set; }
        public decimal DiscountAmount { get; private set; }
        public string ProductId { get; private set; }
        public string PekarId { get; private set; }
        public StatusType StatusType { get; private set; }

        public OrderDataModel(string id, string customerName, DateTime orderDate, decimal totalAmount,
            decimal discountAmount, string productId, string pekarId, StatusType statusType)
        {
            Id = id;
            CustomerName = customerName;
            OrderDate = orderDate;
            TotalAmount = totalAmount;
            DiscountAmount = discountAmount;
            ProductId = productId;
            PekarId = pekarId;
            StatusType = statusType;
        }

        public void Validate()
        {
            if (Id.IsEmpty()) throw new ValidationException("Field Id is empty");
            if (!Id.IsGuid()) throw new ValidationException("Id must be a GUID");
            if (CustomerName.IsEmpty())
                throw new ValidationException("CustomerName is empty");
            if (TotalAmount < 0) throw new ValidationException("TotalAmount cannot be negative");
            if (DiscountAmount < 0) throw new ValidationException("DiscountAmount cannot be negative");
            if (ProductId.IsEmpty()) throw new ValidationException("Field productId is empty");
            if (!ProductId.IsGuid()) throw new ValidationException("productId must be a GUID");
        }
    }
}