const eleventyNavigationPlugin = require("@11ty/eleventy-navigation");
const eleventySyntaxHighlight = require("@11ty/eleventy-plugin-syntaxhighlight");
const eleventySass = require("eleventy-sass");
const eleventyRss = require("@11ty/eleventy-plugin-rss");
const eleventyDrafts = require("./eleventy.config.drafts");
const mdDefList = require("markdown-it-deflist");
const mdToc = require("markdown-it-table-of-contents");
const mdAnchor = require("markdown-it-anchor");
const { markdownItImageSize } = require("./markdown-it-image-size");
const nunjucksDate = require("nunjucks-date");
const markdownIt = require("markdown-it");

function addEleventyPlugins(eleventyConfig) {
	eleventyConfig.addPlugin(eleventyNavigationPlugin);
	eleventyConfig.addPlugin(eleventySyntaxHighlight);
	eleventyConfig.addPlugin(eleventyRss);
	eleventyConfig.addPlugin(eleventyDrafts);
	eleventyConfig.addPlugin(eleventySass, {
		sass: {
			loadPaths: ["node_modules"],
		},
	});
}

function configureMarkdown(eleventyConfig) {
	console.log("markdownItImageSize", markdownItImageSize);

	eleventyConfig.amendLibrary("md", mdLib => mdLib
		.use(mdDefList)
		.use(mdToc, {
			includeLevel: [ 1, 2, 3, 4, 5, 6 ]
		})
		.use(mdAnchor)
		.use(markdownItImageSize));
}

function addFilters(eleventyConfig) {
	let md = new markdownIt();

	eleventyConfig.addFilter("renderMarkdown", (mdString) => md.render(mdString));
	eleventyConfig.addFilter("log", (value) => console.log(value));
	eleventyConfig.addFilter("date", nunjucksDate);
	eleventyConfig.addFilter("IsNotPage", (collection, url) =>
		collection.filter(item => item.url != url));
	eleventyConfig.addFilter("IsMainPageSection", (collection) => {
		return collection.filter(item => !item.url || item.url.startsWith("/_sections"));
	});
	eleventyConfig.addFilter("IsNotMainPageSection", (collection) => {
		return collection.filter(item => {
			if (item.url == null || item.url == false)
				return false;

			if (item.data.tags == null)
				return true;

			if (item.data.tags.includes("MainPage"))
				return false;

			return true;
		});
	});
}

module.exports = function (eleventyConfig) {
	eleventyConfig.setBrowserSyncConfig({
		files: "./_site/css/**/*.css",
	});

	eleventyConfig.addPassthroughCopy("src/img");
	eleventyConfig.addPassthroughCopy({
		"node_modules/prism-themes/themes/prism-material-light.min.css":
			"css/prism-material-light.min.css",
		"node_modules/prism-themes/themes/prism-material-oceanic.min.css":
			"css/prism-material-oceanic.min.css",
		"node_modules/feather-icons/dist/feather-sprite.svg": "images/feather-sprite.svg",
		"src/js/site.js": "js/site.js"
	});

	addEleventyPlugins(eleventyConfig);
	configureMarkdown(eleventyConfig);
	addFilters(eleventyConfig);

	return {
		dir: {
			input: "src",
		},
	};
};