using System.Text.RegularExpressions;
using Markdig;
using Microsoft.AspNetCore.Mvc.RazorPages;

namespace zotanpw_web.Pages.blog;

public class BlogModel : PageModel {
	public static readonly List<BlogPost> Posts = new() {
		new BlogPost("adhd-and-notes", "ADHD & Notetaking: an autistic perspective", DateOnly.Parse("2021-08-07")),
		new BlogPost("ipv6-networking", "IPv6-native networking: a project report", DateOnly.Parse("2021-08-23")),
	};

	static BlogModel() {
		Posts = Posts.OrderByDescending(p => p.PublishedOn).ToList();
	}

	public void OnGet() { }

	public class BlogPost {
		public readonly string   Title;
		public readonly string   Shorthand;
		public readonly DateOnly PublishedOn;
		public          int      ReadTimeMinutes;
		public          string   Content = "";

		public BlogPost(string shorthand, string title, DateOnly publishedOn) {
			Title       = title;
			PublishedOn = publishedOn;
			Shorthand   = shorthand;
			UpdateContent();
		}

		public void UpdateContent() {
			var markdownText = System.IO.File.ReadAllText($"Pages/blog/posts/{Shorthand}.md");

			Content         = Markdown.ToHtml(markdownText, new MarkdownPipelineBuilder().UseGenericAttributes().Build());
			ReadTimeMinutes = Regex.Matches(markdownText, @"\b\w+\b").Count / 150;
		}
	}
}