{props.meta.title}

import Head from 'next/head'; import { readdirSync, readFileSync } from 'fs'; import { join } from 'path'; import { ReactNode } from 'react'; import ReactMarkdown from 'react-markdown'; import { Prism as SyntaxHighlighter } from 'react-syntax-highlighter'; import rehypeRaw from 'rehype-raw'; import gfm from 'remark-gfm'; import Chapters, { chapter } from '../../components/chapters'; import Image from '../../components/image'; import Navbar, { MobileNavbar } from '../../components/navbar'; import Seperator from '../../components/seperator'; import Tags from '../../components/tag'; export interface ArticleMeta { title?: string; subtitle?: string; author?: string; tags?: Array; date?: string; chapters?: Array; cover?: string; id?: string; } var headingLevel = (input: string) => input?.match(/^[#]+/)[0]?.length || 0; var sectionID = (input: string) => input .replace(/[()\[\]{}!@#$%^&*<>?,./\;':"\\|=+]/g, '') .replace(/\s/g, '-') .toLowerCase(); function Heading(props: { children?: ReactNode; level?: number; }) { var HeadingTag = 'h' + props.level as keyof JSX.IntrinsicElements; return ; } function Code(props: { className?: string; children?: ReactNode; }) { var language = /language-(\w+)/.exec(props.className || ''); if (!language) return

;
	return ;
}

export function RenderedArticle(props: { content: string; }) {
	return  ,
			hr: Seperator,

			h1: Heading, // TODO: fix this garbage
			h2: Heading,
			h3: Heading,
			h4: Heading,
			h5: Heading,
			h6: Heading,

			code: Code,
		}}
	/>;
}

export default function Post(props: {
	content: string;
	meta: ArticleMeta;
}) {
	return 
		
			{props.meta.title} - Loek's Blog
			
			
			
		
		
			
				{props.meta.title}
				{props.meta.subtitle}
				{props.meta.tags && }
			
			
				
					
					
				
			
			
			
				
			
		
	;
}

var parseTag = {
	'title': (val: string) => val,
	'subtitle': (val: string) => val,
	'author': (val: string) => val,
	'cover': (val: string) => val,
	'tags': (val: string) => val.split(',').map(i => i.trim()),
	'date': (val: string) => new Date(val).toDateString(),
};

function parseMeta(file: Array): ArticleMeta {
	var meta: ArticleMeta = {};

	file.forEach(line => {
		if (!line.startsWith('[meta]: ')) return;
		var tags = line.match(/\[meta\]:\s+\<(.+?)\>\s+\((.+?)\)/);
		if (!tags || !tags[1] || !tags[2]) return;
		if (!parseTag.hasOwnProperty(tags[1])) return;
		meta[tags[1]] = parseTag[tags[1]](tags[2]);
	});

	return meta;
}

function parseToCRecursive(headings: Array): Array {
	interface WIPchapter extends chapter {
		unparsedChildren?: Array;
	}
	var children: Array = [];

	var lowestLevel = headingLevel(headings[0]);
	var currentChildIndex = -1;
	for (var i in headings) {
		var localLevel = headingLevel(headings[i]);
		if (localLevel == lowestLevel) {
			var chapterName = headings[i].match(/^[#]+\s+(.+)/)[1];
			children.push({
				name: chapterName,
				sectionLink: '#' + sectionID(chapterName),
				unparsedChildren: [],
			});
			currentChildIndex += 1;
		} else {
			children[currentChildIndex].unparsedChildren.push(headings[i]);
		}
	}

	children.map(child => {
		child.children = parseToCRecursive(child.unparsedChildren);
		delete child.unparsedChildren;

		return child;
	});

	return children as Array;
}

function parseToC(file: Array): Array {
	var fileAsStr = file.join('\n');
	fileAsStr = fileAsStr.replace(/```.*?```/gs, ''); // filter out code blocks from table of contents
	var fileAsArr = fileAsStr.split('\n');
	var chapterStrings = fileAsArr.filter(line => line.startsWith('#'));
	return parseToCRecursive(chapterStrings);
}

function preprocessor(fileContent: string) {
	var fileAsArr = fileContent.split('\n');
	var meta = parseMeta(fileAsArr);
	meta.chapters = parseToC(fileAsArr);
	var result = fileAsArr.join('\n').trim();
	return { meta, result };
}

export function getStaticProps(props: { params: { id: string; }; }) {
	var filename = join('posts/', props.params.id + '.md');
	var filecontent = readFileSync(filename).toString().trim();

	var parsed = preprocessor(filecontent);
	parsed.meta.id = props.params.id;

	return {
		props: {
			content: parsed.result,
			meta: parsed.meta,
		},
	};
}

export function getStaticPaths() {
	var files = readdirSync('posts').filter(f => f.endsWith('.md'));

	return {
		paths: files.map((f) => {
			return {
				params: {
					id: f.substr(0, f.length - 3),
				},
			};
		}),
		fallback: false,
	};
}