using Colore;
using Colore.Data;
using Colore.Effects.Keyboard;
using System;

namespace ChromaController
{
    internal class FlashKey : KeyEffect
    {
        public float FlashTime { get; }

        /// <summary>
        /// Flashes key with specified color for specified time.
        /// </summary>
        /// <param name="keys">The <see cref="Colore.Effects.Keyboard.Key"/> that will flash</param>
        /// <param name="color1">The startcolor</param>
        /// <param name="color2">The endcolor</param>
        /// <param name="flashTime">The amount of steps that <paramref name="color1"/> will be shown</param>
        public FlashKey(Key[] keys, Color color1, Color color2, int flashTime, int delayTime = 0) : base(keys, color1, color2, delayTime)
        {
            if (flashTime <= 0) throw new ArgumentException("argument should be between 0 and 1", "stepPercentage");
            FlashTime = flashTime;
        }

        public FlashKey(Key key, Color color1, Color color2, int flashTime, int delayTime = 0)
            : this(new Key[] { key }, color1, color2, flashTime, delayTime)
        {
        }

        public override bool Step(IChroma chroma)
        {
            bool baseResult = base.Step(chroma);
            if (StepCounter <= DelayTime) return baseResult;
            if (StepCounter > FlashTime + DelayTime)
            {
                chroma.Keyboard.SetKeysAsync(Keys, Color2, false);
                return true;
            }
            chroma.Keyboard.SetKeysAsync(Keys, Color1, false);
            return baseResult;
        }
    }
}