Presentation

.eslintrc.js

@@ -0,0 +1,15 @@
+module.exports = {
+  env: {
+    browser: true,
+    commonjs: true,
+    es2021: true
+  },
+  extends: 'standard',
+  overrides: [
+  ],
+  parserOptions: {
+    ecmaVersion: 'latest'
+  },
+  rules: {
+  }
+}

extractlinks.js

@@ -0,0 +1,27 @@
+
+const MarkdownIt = require('markdown-it') //leer RCHIVOS EN HTML
+const md = new MarkdownIt()
+const jsdom = require('jsdom')  //CREA UNA LISTA DE NODOS
+const { JSDOM } = jsdom
+
+const extractLinks = (text) => {
+  const result = md.render(text)
+  const dom = new JSDOM(result)
+  const query = dom.window.document.querySelectorAll('a')
+  const arrayLabels = Array.apply(null, query)
+  const newarray = arrayLabels.map((href) => {
+    return href.getAttribute('href')
+  })
+  const arrayLinks = newarray.filter((link) => {
+    if (link.startsWith("http")) {
+      return true
+    } else {
+      return false
+    }
+  })
+  return arrayLinks
+}
+// eslint-disable-next-line no-lone-blocks
+{
+  module.exports = { extractLinks }
+}

index.js

@@ -1,3 +1,41 @@
-module.exports = () => {
-  // ...
-};
+const fs = require('node:fs')
+const path = require('node:path')
+const { extractLinks } = require('./extractlinks.js')
+const { validate } = require('./validate.js')
+const paths = process.argv[2]
+
+const mdlinks = (paths, options) => {
+  const newPromise = new Promise((resolve, reject) => {
+    if (path.isAbsolute(paths) === false) {
+      paths = path.resolve(paths)
+
+      if (fs.existsSync(paths)) {
+        const statusPath = fs.statSync(paths)
+        const extFile = path.extname(paths)
+
+        if (statusPath.isDirectory() || extFile !== '.md') {
+          reject('Please enter a MD file')
+        } else {
+        // eslint-disable-next-line n/handle-callback-err
+          fs.readFile(paths, 'utf-8', (err, data) => {
+            if (options.validate) {
+              resolve(validate(extractLinks(data)))
+            } else {
+              resolve(extractLinks(data))
+            }
+          })
+        }
+      } else {
+        reject('The File doesn´t exists!')
+      }
+    }
+  })
+
+  return newPromise
+}
+
+mdlinks(paths, { validate: true }).then((result) => {
+  console.log(result)
+}).catch((err) => {
+  console.error(err)
+})