namespace Млаумчерб.Клиент.классы;

public class GameVersionProps : IComparable<GameVersionProps>, IEquatable<GameVersionProps>
{
    public string Name { get; }
    public IOPath LocalDescriptorPath { get; }
    public string? RemoteDescriptorUrl { get; }
    private bool _isDownloaded;
    public bool IsDownloaded
    {
        get => _isDownloaded;
        set
        {
            bool downloadCompleted = value && !_isDownloaded;
            _isDownloaded = value;
            if(downloadCompleted)
                OnDownloadCompleted?.Invoke();
        }
    }
    public event Action? OnDownloadCompleted;

    public GameVersionProps(string name, string? url, IOPath descriptorPath)
    {
        Name = name;
        LocalDescriptorPath = descriptorPath;
        RemoteDescriptorUrl = url;
        IsDownloaded = File.Exists(Пути.GetVersionJarFilePath(name));
    }
    
    public GameVersionProps(string name, string? url) : 
        this(name, url, Пути.GetVersionDescriptorPath(name)) { }

    public override string ToString() => Name;

    public override int GetHashCode() => Name.GetHashCode();

    public int CompareTo(GameVersionProps? other)
    {
        if (ReferenceEquals(this, other)) return 0;
        if (other is null) return 1;
        
        if (Version.TryParse(Name, out var version1) && Version.TryParse(other.Name, out var version2))
        {
            return version1.CompareTo(version2);
        }
        
        return String.Compare(Name, other.Name, StringComparison.InvariantCulture);
    }

    public bool Equals(GameVersionProps? other)
    {
        if (other is null) return false;
        if (ReferenceEquals(this, other)) return true;
        return Name == other.Name;
    }

    public override bool Equals(object? obj)
    {
        if (obj is GameVersionProps other) return Equals(other);
        if (ReferenceEquals(this, obj)) return true;
        return false;
    }
}