using System;

using Markdig.Helpers;

namespace MfGames.Markdown.Extensions;

public class WikiLinkOptions
{
    public WikiLinkOptions()
    {
        this.GetUrl = a => a;
        this.IsTrailingLink = a => a.IsAlpha() || a == '\'';
    }

    /// <summary>
    /// The callback to determine the link from the given wiki link. This does
    /// not include trailing additions or use the label (e.g., `(ab|cd)` would
    /// get `ab` as the parameters of this function.
    /// </summary>
    public Func<string, string> GetUrl { get; set; }

    /// <summary>
    /// <para>
    /// A callback to determine if the text after the link should be merged
    /// with the link label. This allows links such as [[Dale]]'s to be turned
    /// into "Dale's" but pointing to "Dale" as a page.
    /// </para>
    /// <para>The default is to include any character or the apostrophe.</para>
    /// </summary>
    public Func<char, bool> IsTrailingLink { get; set; }
}