using System;
using System.Collections.Generic;
using System.Windows.Forms;

namespace TBF.UI.Item
{
    public class EditEnum<T> : IEditItem where T : IComparable
    {
        string name;
        T variable;
        IEnumerable<T> values;
        string[] strValues;
        ComboBox comboBox;

        public EditEnum(string name, ref T variable, IList<T>values, string[] strValues)
        {
            if (values.Count != strValues.Length) throw new Exception("values and strValues lengths are different");

            this.name = name;
            this.variable = variable;
            this.values = values;
            this.strValues = strValues;

            this.comboBox = new ComboBox();
            foreach (var v in strValues) comboBox.Items.Add(v);
        }

        public string Name() { return name; }
        public Control EmbeddedControl() { return comboBox; }

        public string Print()
        {
            int ix = 0;
            foreach (var v in values)
            {
                if (v.CompareTo(variable) == 0) return strValues[ix];
                ix++;
            }

            return string.Empty;
        }

        public void Update(string strValue)
        {
            int ix = 0;
            foreach (var v in values)
            {
                if (strValues[ix++].Equals(strValue))
                {
                    variable = v;
                    return;
                }
            }
        }

        public bool Validate(string strValue, out string message)
        {
            foreach (var sv in strValues)
            {
                if (sv == strValue)
                {
                    message = string.Empty;
                    return true;
                }
            }

            message = string.Format("{0} is invalid", name);
            return false;
        }
    }
}