allow import of single HTML file too

src/services/import/single.js

@@ -0,0 +1,47 @@
+"use strict";
+
+const noteService = require('../../services/notes');
+const commonmark = require('commonmark');
+const path = require('path');
+
+async function importMarkdown(file, parentNote) {
+    const markdownContent = file.buffer.toString("UTF-8");
+
+    const reader = new commonmark.Parser();
+    const writer = new commonmark.HtmlRenderer();
+
+    const parsed = reader.parse(markdownContent);
+    const htmlContent = writer.render(parsed);
+
+    const title = getFileNameWithoutExtension(file.originalname);
+
+    const {note} = await noteService.createNote(parentNote.noteId, title, htmlContent, {
+        type: 'text',
+        mime: 'text/html'
+    });
+
+    return note;
+}
+
+async function importHtml(file, parentNote) {
+    const title = getFileNameWithoutExtension(file.originalname);
+    const content = file.buffer.toString("UTF-8");
+
+    const {note} = await noteService.createNote(parentNote.noteId, title, content, {
+        type: 'text',
+        mime: 'text/html'
+    });
+
+    return note;
+}
+
+function getFileNameWithoutExtension(filePath) {
+    const extension = path.extname(filePath);
+
+    return filePath.substr(0, filePath.length - extension.length);
+}
+
+module.exports = {
+    importMarkdown,
+    importHtml
+};