using Sony.Vegas;
using System;
using System.IO;
using System.Linq;

namespace VegasToTempoBlasterPlugin
{

    public class ProjectUsefulInfo
    {
        private readonly string _takeName;
        private readonly Vegas _vegas;

        public string TakeName { get { return _takeName; } }

        public AudioTrack Track { get; private set; }

        public AudioEvent Event { get; private set; }

        public Take Take { get; private set; }

        public bool HasAllInfo
        {
            get { return (null != Track) && (null != Event) && (null != Take); }
        }

        public ProjectUsefulInfo(Vegas vegas, string wavePath)
        {
            _takeName = Path.GetFileNameWithoutExtension(wavePath);
            _vegas = vegas;
             Update();
        }

        public void Update()
        {
            var audioTracks = _vegas.Project.Tracks
                .Where(trackCur => trackCur.MediaType == MediaType.Audio)
                .Cast<AudioTrack>();

            foreach (var audioTrack in audioTracks)
            {
                var audioEvents = audioTrack.Events
                    .Where(audioEventCur => audioEventCur.MediaType == MediaType.Audio)
                    .Cast<AudioEvent>();

                foreach (var audioEvent in audioEvents)
                {
                    var audioTake = audioEvent.Takes
                        .FirstOrDefault<Take>(audioTakeCur => audioTakeCur.Name.Equals(TakeName, StringComparison.CurrentCultureIgnoreCase));

                    if (null != audioTake)
                    {
                        Track = audioTrack;
                        Event = audioEvent;
                        Take = audioTake;
                        return;
                    }
                }
            }
            Track = null;
            Event = null;
            Take = null;
        }
    }
}