using System;
using System.Collections.Generic;
using System.Text;

namespace Ips.Library.Entity
{
    /// <summary>
    /// 时隙
    /// </summary>
    public class Timeslot
    {
        /// <summary>
        /// 名称
        /// </summary>
        public string Name { get; set; }

        /// <summary>
        /// 起始样点
        /// </summary>
        public int Start { get; set; }

        /// <summary>
        /// 信号长度
        /// </summary>
        public int Length { get; set; }

        public Timeslot() { }

        public Timeslot(string result)
        {
            FromString(result);
        }

        public void FromString(string result)
        {
            if (string.IsNullOrWhiteSpace(result)) return;
            var items = result.Split(',');
            if (items.Length == 3
                && int.TryParse(items[1], out int start)
                && int.TryParse(items[2], out int length))
            {
                Name = items[0];
                Start = start;
                Length = length;
            }
            else
            {
                throw new ArgumentException(result, nameof(result));
            }

        }

        public static Timeslot[] FromListString(string result, string itemsep = "\r\n")
        {
            if (string.IsNullOrWhiteSpace(result))
                return Array.Empty<Timeslot>();
            var items = result.Split(itemsep.ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
            Timeslot[] results = new Timeslot[items.Length];
            for (int i = 0; i < items.Length; i++)
            {
                results[i] = new Timeslot(items[i]);
            }
            return results;
        }

        public override string ToString()
        {
            return $"{Name},{Start},{Length}";
        }
    }

    public static class TimeslotExtensions
    {
        public static int[] ToTimeslotArray(this IEnumerable<Timeslot> timeslots)
        {
            List<int> results = new List<int>();
            foreach(var ts in timeslots)
            {
                results.Add(ts.Start);
                results.Add(ts.Length);
            }
            return results.ToArray();
        }
    }
}