import matter from 'gray-matter' import unified from "unified"; import markdown from "remark-parse"; import {wikiLinkPlugin} from "remark-wiki-link"; import html from "remark-html"; import frontmatter from "remark-frontmatter"; import externalLinks from "remark-external-links"; import highlight from "remark-highlight.js"; import {Node} from "./node"; import {getAllMarkdownFiles, toFilePath, toSlug} from "./utils"; export const Transformer = { haveFrontMatter: function (content) { //console.log("\t Front matter data content", content) if (!content) return false const indexOfFirst = content.indexOf("---"); //console.log("\t Front matter data firstIndex ", indexOfFirst) //console.log("index first", indexOfFirst) if (indexOfFirst === -1) { return false } let indexOfSecond = content.indexOf("---", (indexOfFirst + 1)); return indexOfSecond !== -1; }, getFrontMatterData: function (filecontent) { if (Transformer.haveFrontMatter(filecontent)) { return matter(filecontent).data } return {} }, pageResolver: function (pageName) { const allFileNames = getAllMarkdownFiles() const result = allFileNames.find(aFile => { let parseFileNameFromPath = Transformer.parseFileNameFromPath(aFile); return Transformer.normalizeFileName(parseFileNameFromPath) === Transformer.normalizeFileName(pageName) } ) // permalink = permalink.replace("ç", "c").replace("ı", "i").replace("ş", "s") // console.log(`/note/${toSlug(result)}`) if (result === undefined || result.length === 0) { console.log("Cannot resolve file path " + pageName) } return (result !== undefined && result.length > 0) ? [toSlug(result)] : ["/"] }, hrefTemplate: function (permalink) { // permalink = Transformer.normalizeFileName(permalink) permalink = permalink.replace("ç", "c").replace("ı", "i").replace("ş", "s") return `/note/${permalink}`; }, getHtmlContent: function (content) { let htmlContent = [] const sanitizedContent = Transformer.preprocessThreeDashes(content) unified() .use(markdown, {gfm: true}) .use(highlight) .use(externalLinks, {target: "_blank", rel: ['noopener']}) .use(frontmatter, ['yaml', 'toml']) .use(wikiLinkPlugin, { permalinks: null, pageResolver: function (pageName) { return Transformer.pageResolver(pageName) }, hrefTemplate: function (permalink) { return Transformer.hrefTemplate(permalink); }, aliasDivider: "|" }) .use(html) .process(sanitizedContent, function (err, file) { htmlContent.push(String(file).replace("\n", "")) if (err) { console.log("ERRROR:" + err) } } ) htmlContent = htmlContent.join("") htmlContent = htmlContent.split("---") return [htmlContent] }, /* SANITIZE MARKDOWN FOR --- */ preprocessThreeDashes: function (content) { const indexOfFirst = content.indexOf("---"); if (indexOfFirst === -1) { return content } const indexOfSecond = content.indexOf("---", (indexOfFirst + 1)); content.slice(0, indexOfSecond); const contentPart = content.slice(indexOfSecond); return contentPart.split("---").join("") }, /* Normalize File Names */ normalizeFileName: function (filename) { let processedFileName = filename.replace(".md", ""); processedFileName = processedFileName.replace('(', '').replace(')', '') processedFileName = processedFileName.split(" ").join("-") processedFileName = processedFileName.toLowerCase() const conversionLetters = [ ["ç", "c"], ["ş", "s"], ["ı", "i"], ["ü", "u"], ["ö", "o"], ["ğ", "g"], ["Ç", "C"], ["Ş", "S"], ["İ", "I"], ["Ü", "U"], ["Ö", "O"], ["Ğ", "G"] ]; conversionLetters.forEach(letterPair => { processedFileName = processedFileName.split(letterPair[0]).join(letterPair[1]) //processedFileName = processedFileName.replace(letterPair[0], letterPair[1]) } ) //console.log("filename", processedFileName) return processedFileName }, /* Parse file name from path then sanitize it */ parseFileNameFromPath: function (filepath) { const parsedFileFromPath = filepath.split("/")[filepath.split("/").length - 1] return parsedFileFromPath.replace(".md", "") }, /* Pair provided and existing Filenames*/ getInternalLinks: function (aFilePath) { // const filePaths = Node.getFiles(postsDirectory); // const currentFilePath = Transformer.pairCurrentFile(aFilePath, filePaths) const fileContent = Node.readFileSync(aFilePath); const internalLinks = [] const sanitizedContent = Transformer.preprocessThreeDashes(fileContent) unified() .use(markdown, {gfm: true}) .use(wikiLinkPlugin, { pageResolver: function (pageName) { // let name = [Transformer.parseFileNameFromPath(pageName)]; let canonicalSlug; if (pageName.includes('#')) { // console.log(pageName) const tempSlug = pageName.split('#')[0] if (tempSlug.length === 0) { // Meaning it in form of #Heading1 --> slug will be this file slug canonicalSlug = toSlug(aFilePath) } else { canonicalSlug =Transformer.pageResolver(tempSlug)[0].split('#')[0] } } else { canonicalSlug = Transformer.pageResolver(pageName)[0].split('#')[0] } const backLink = { title: Transformer.parseFileNameFromPath(toFilePath(canonicalSlug)), slug: canonicalSlug, shortSummary: canonicalSlug } if (canonicalSlug != null && internalLinks.find(aLink => aLink.slug === canonicalSlug) == null) { internalLinks.push(backLink); } return [canonicalSlug] } , hrefTemplate: function (permalink) { return Transformer.hrefTemplate(permalink) }, aliasDivider: "|" }) .use(html) .processSync(sanitizedContent) return internalLinks; } }