using System;
using System.Globalization;
using UnityEngine;

namespace NightclubArcadia.Skills
{
    public enum DcBand
    {
        Trivial = 8,
        Routine = 11,
        Hard = 14,
        Specialist = 17,
        BuildDefining = 20,
    }

    public static class DcBands
    {
        static readonly int[] BandValues =
        {
            (int)DcBand.Trivial,
            (int)DcBand.Routine,
            (int)DcBand.Hard,
            (int)DcBand.Specialist,
            (int)DcBand.BuildDefining,
        };

        public static bool TryParse(string input, out int dc)
        {
            dc = 0;
            if (string.IsNullOrWhiteSpace(input))
            {
                return false;
            }

            input = input.Trim();

            if (int.TryParse(input, NumberStyles.Integer, CultureInfo.InvariantCulture, out var numeric))
            {
                dc = numeric;
                if (!IsBandValue(numeric))
                {
                    Debug.LogWarning(
                        $"[DcBands] DC {numeric} is not a named band " +
                        $"(8 / 11 / 14 / 17 / 20). Prefer band names.");
                }

                return true;
            }

            if (Enum.TryParse<DcBand>(input, ignoreCase: true, out var band))
            {
                dc = (int)band;
                return true;
            }

            return false;
        }

        public static bool IsBandValue(int dc)
        {
            for (var i = 0; i < BandValues.Length; i++)
            {
                if (BandValues[i] == dc)
                {
                    return true;
                }
            }

            return false;
        }
    }
}