using System;
using JD.Application.Utils;
using JD.Audio.Annotations;
using JD.Audio.Sound;
using JD.Serialization;

namespace JDSongConverter.Utils
{
    public static class UnitUtils
    {
        public static float TimeInBeats(this Tape tape, int beat, float offsetInSeconds)
        {
            if (tape.Extensions.unitConverter == null)
            {
                tape.Extensions.unitConverter = tape.TryGetWave().UnitConverter;
            }
            var timeInSec = tape.Extensions.unitConverter.TimeFromBeat(new BeatUnit(beat)).TotalSeconds;
            return tape.Extensions.unitConverter.BeatFromTime(TimeSpan.FromSeconds(timeInSec + offsetInSeconds)).Value;
        }

        public static float TimeInBeats(this Tape tape, float timeInSeconds)
        {
            if (tape.Extensions.unitConverter == null)
            {
                tape.Extensions.unitConverter = tape.TryGetWave().UnitConverter;
            }
            return tape.Extensions.unitConverter.BeatFromTime(TimeSpan.FromSeconds(timeInSeconds)).Value;
        }
    }
}