namespace StabilityMatrix.Core.Models;

/// <summary>
/// Defines a remote downloadable resource.
/// </summary>
public readonly record struct RemoteResource
{
    public Uri Url { get; }

    public Uri[]? FallbackUrls { get; }

    public string HashSha256 { get; }

    /// <summary>
    /// Type info, for remote models this is <see cref="SharedFolderType"/> of the model.
    /// </summary>
    public object? ContextType { get; init; }

    public Uri? InfoUrl { get; init; }

    public string? LicenseType { get; init; }

    public Uri? LicenseUrl { get; init; }

    public string? Author { get; init; }

    public string? ByAuthor => string.IsNullOrEmpty(Author) ? null : $"by {Author}";

    public RemoteResource(Uri url, string hashSha256)
    {
        Url = url;
        HashSha256 = hashSha256;
    }

    public RemoteResource(Uri[] urls, string hashSha256)
    {
        if (urls.Length == 0)
        {
            throw new ArgumentException("Must have at least one url.", nameof(urls));
        }

        Url = urls[0];
        FallbackUrls = urls.Length > 1 ? urls[1..] : null;
        HashSha256 = hashSha256;
    }
}