using System;
using System.Collections.Generic;
using System.Configuration;
using System.IO;
using System.Linq;
using System.Threading.Tasks;

using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;

using Icarus.Controllers.Managers;
using Icarus.Controllers.Utilities;
using Icarus.Models;
using Icarus.Models.Context;

namespace Icarus.Controllers
{
    [Route("api/song/compressed/data")]
    [ApiController]
    public class SongCompressedDataController : ControllerBase
    {
        #region Fields
        private IConfiguration _config;
	private SongManager _songMgr;
	private string _songTempDir;
	private string _archiveDir;
	#endregion


	#region Properties
	#endregion


	#region Constructor
	public SongCompressedDataController(IConfiguration config)
	{
	    _config = config;
	    _songTempDir = _config.GetValue<string>("TemporaryMusicPath");
	    _archiveDir = _config.GetValue<string>("ArchivePath");
	}
	#endregion


	#region API Routes
        [HttpGet("{id}")]
        public async Task<IActionResult> Get(int id)
        {
	    MusicStoreContext context = HttpContext.RequestServices
		    				   .GetService(typeof(MusicStoreContext)) 
						   as MusicStoreContext;

  	    SongCompression cmp = new SongCompression(_archiveDir);
	    
            Console.WriteLine($"Archive directory root: {_archiveDir}");

	    Console.WriteLine("Starting process of retrieving comrpessed song");
	    SongData song = await cmp.RetrieveCompressedSong(context.GetSong(id));

	    return File(song.Data, "application/x-msdownload", cmp.CompressedSongFilename);
        }
        #endregion
    }
}