using System;
using System.Runtime.CompilerServices;

namespace Data_Import
{
    class Car
    {
        private string registration;
        public string Registration { get; set; }
        public string Make { get; set; }
        public string Model { get; set; }

        public string Colour { get; set; }
        public string FuelType { get; set; }

        public bool HasValidRegistration()
        {
            //The order of these if statements could be improved, however they are written in this order for readability.
            if (Registration.Length != 8)
                return false;
            if (!char.IsLetter(Registration[0]) || !char.IsLetter(Registration[1]))
                return false;
            if (!char.IsNumber(Registration[2]) || !char.IsNumber(Registration[3]))
                return false;
            if (Registration[4] != ' ')
                return false;
            if (!char.IsLetter(Registration[5]) || !char.IsLetter(Registration[6]) || !char.IsLetter(Registration[7]))
                return false;
            return true;
        }

        public string AsCSV()
        {
            return string.Format("{0},{1},{2},{3},{4}", Registration, Make, Model, Colour, FuelType);
        }

        public Car FromCSV(string csv)
        {
            var splitCSV = csv.Split(',');
            Registration = splitCSV[0];
            Make = splitCSV[1];
            Model = splitCSV[2];
            Colour = splitCSV[3];
            FuelType = splitCSV[4];
            return this;
        }
    }
}