import matter from "gray-matter";
import { join } from "path";
import fs from "fs";
import { FrontMatter, MarkdownDocument } from "../types/types";
import { remark } from "remark";
import html from "remark-html";
import remarkGfm from "remark-gfm";


export const BLOGS_PATH = join(process.cwd(), "content/blogs");
export const PROJECTS_PATH = join(process.cwd(), "content/projects");
export interface Post {
  frontMatter: FrontMatter;
  slug: string;
}

export const getBlogContentBySlug = (slug: string): MarkdownDocument => {
  const filepath = join(BLOGS_PATH, `${slug}.md` || `${slug}.mdx`);
  const filecontents = fs.readFileSync(filepath);

  const { data, content } = matter(filecontents);

  return {
    frontMatter: data,
    content: content,
  };
};
export const getProjectContentBySlug = (slug: string): MarkdownDocument => {
  const filepath = join(PROJECTS_PATH, `${slug}.md` || `${slug}.mdx`);
  const filecontents = fs.readFileSync(filepath);

  const { data, content } = matter(filecontents);

  return {
    frontMatter: data,
    content: content,
  };
};

export const getAllBlogsFrontMatter = (): Post[] => {
  const files = fs.readdirSync(BLOGS_PATH);

  return files.reduce((allPosts: Post[], postSlug: string) => {
    const slug = postSlug.replace(".md", "");
    const post = getBlogContentBySlug(slug);

    return [{ frontMatter: post.frontMatter, slug }, ...allPosts];
  }, []);
};
export const getAllProjectsFrontMatter = (): Post[] => {
  const files = fs.readdirSync(PROJECTS_PATH);

  return files.reduce((allPosts: Post[], postSlug: string) => {
    const slug = postSlug.replace(".md", "");
    const post = getProjectContentBySlug(slug);

    return [{ frontMatter: post.frontMatter, slug }, ...allPosts];
  }, []);
};

export async function markdownToHtml(markdown: any) {
  const result = await remark().use(html).process(markdown);
  return result.toString();
}

export const renderMarkdown = async (
  markdownContent: string
): Promise<string> => {
  return await markdownToHtml(markdownContent || "");
};