using System.IO;
using Azaion.Common.DTO;
using Azaion.Common.DTO.Config;
using Azaion.Common.DTO.Queue;
using Azaion.CommonSecurity.DTO;

namespace Azaion.Common.Database;

public class Annotation
{
    private static string _labelsDir = null!;
    private static string _imagesDir = null!;
    private static string _thumbDir = null!;

    public static void InitializeDirs(DirectoriesConfig config)
    {
        _labelsDir = config.LabelsDirectory;
        _imagesDir = config.ImagesDirectory;
        _thumbDir = config.ThumbnailsDirectory;
    }

    public string           Name             { get; set; } = null!;
    public string           ImageExtension   { get; set; } = null!;
    public DateTime         CreatedDate      { get; set; }
    public string           CreatedEmail     { get; set; } = null!;
    public RoleEnum         CreatedRole      { get; set; }
    public SourceEnum       Source           { get; set; }
    public AnnotationStatus AnnotationStatus { get; set; }

    public IEnumerable<Detection> Detections { get; set; } = null!;

    public double           Lat              { get; set; }
    public double           Lon              { get; set; }

    #region Calculated
    public List<int>        Classes => Detections.Select(x => x.ClassNumber).ToList();
    public string           ImagePath => Path.Combine(_imagesDir, $"{Name}{ImageExtension}");
    public string           LabelPath => Path.Combine(_labelsDir, $"{Name}.txt");
    public string           ThumbPath => Path.Combine(_thumbDir, $"{Name}{Constants.THUMBNAIL_PREFIX}.jpg");
    public string           OriginalMediaName => $"{Name[..^7]}";

    private TimeSpan?       _time;
    public TimeSpan         Time
    {
        get
        {
            if (_time.HasValue)
                return _time.Value;

            var timeStr = Name.Split("_").LastOrDefault();

            //For some reason, TimeSpan.ParseExact doesn't work on every platform.
            if (!string.IsNullOrEmpty(timeStr) &&
                timeStr.Length == 6 &&
                int.TryParse(timeStr[..1], out var hours) &&
                int.TryParse(timeStr[1..3], out var minutes) &&
                int.TryParse(timeStr[3..5], out var seconds) &&
                int.TryParse(timeStr[5..], out var milliseconds))
                return new TimeSpan(0, hours, minutes, seconds, milliseconds * 100);

            _time = TimeSpan.FromSeconds(0);
            return _time.Value;
        }
    }
    #endregion Calculated
}



public enum AnnotationStatus
{
    None = 0,
    Created = 10,
    Validated = 20
}