API routes to get and add themes

controllers/themes/addTheme.js

@@ -0,0 +1,28 @@
+const asyncWrapper = require('../../middleware/asyncWrapper');
+const ErrorResponse = require('../../utils/ErrorResponse');
+const File = require('../../utils/File');
+
+// @desc      Create new theme
+// @route     POST /api/themes
+// @access    Private
+const addTheme = asyncWrapper(async (req, res, next) => {
+  const file = new File('data/themes.json');
+  let content = JSON.parse(file.read());
+
+  const themeNames = content.themes.map((t) => t.name);
+
+  if (themeNames.includes(req.body.name)) {
+    return next(new ErrorResponse('Name must be unique', 400));
+  }
+
+  // Add new theme
+  content.themes.push(req.body);
+  file.write(content, true);
+
+  res.status(201).json({
+    success: true,
+    data: req.body,
+  });
+});
+
+module.exports = addTheme;