using System;
using Markdig;
using Markdig.Renderers.Html;
using Markdig.Syntax;
using Markdig.Syntax.Inlines;

namespace Dpz.Core.Infrastructure;

public static class ApplicationTools
{
    /// <summary>
    /// 起始时间
    /// </summary>
    public static readonly DateTime StartTime = new(2018, 2, 11, 13, 56, 24, DateTimeKind.Local);
    
    /// <summary>
    /// Markdown转为Html
    /// </summary>
    /// <param name="markdown"></param>
    /// <param name="disableHtml">是否禁用html（默认禁用）</param>
    /// <returns></returns>
    public static string MarkdownToHtml(this string markdown, bool disableHtml = true)
    {
        var pipelineBuild = new MarkdownPipelineBuilder()
            .UseAutoLinks()
            .UsePipeTables()
            .UseTaskLists()
            .UseEmphasisExtras()
            .UseAutoIdentifiers();

        if (disableHtml)
        {
            pipelineBuild.DisableHtml();
        }

        var pipeline = pipelineBuild.Build();

        var document = Markdown.Parse(markdown, pipeline);
        foreach (var link in document.Descendants<LinkInline>())
        {
            link.GetAttributes().AddPropertyIfNotExist("target", "_blank");
        }

        foreach (var link in document.Descendants<AutolinkInline>())
        {
            link.GetAttributes().AddPropertyIfNotExist("target", "_blank");
        }

        return document.ToHtml(pipeline);
    }
}