add task solution

src/convertToCase/convertToCase.js

@@ -19,7 +19,7 @@ function convertToCase(text, caseName) {
   const words = toWords(text, originalCase);
   const convertedText = wordsToCase(words, caseName);
 
-  return { originalCase, convertedText };
+  return { convertedText, originalCase };
 }
 
 module.exports = {

src/createServer.js

@@ -1,3 +1,78 @@
+/* eslint-disable no-console */
 // Write code here
 // Also, you can create additional files in the src folder
 // and import (require) them here
+function createServer() {
+  const http = require('http');
+  const { convertToCase } = require('./convertToCase/convertToCase');
+
+  // const PORT = process.env.PORT || 3000;
+
+  const server = http.createServer((req, res) => {
+    const [textToConvert, query = ''] = req.url.slice(1).split('?');
+    const toCase = new URLSearchParams(query).get('toCase');
+
+    res.setHeader('Content-Type', 'application/json');
+
+    const errors = [];
+
+    if (textToConvert.length === 0) {
+      errors.push({
+        message:
+          // eslint-disable-next-line max-len
+          'Text to convert is required. Correct request is: "/<TEXT_TO_CONVERT>?toCase=<CASE_NAME>".',
+      });
+    }
+
+    if (toCase === null) {
+      errors.push({
+        message:
+          // eslint-disable-next-line max-len
+          '"toCase" query param is required. Correct request is: "/<TEXT_TO_CONVERT>?toCase=<CASE_NAME>".',
+      });
+    }
+
+    if (
+      toCase !== null &&
+      toCase !== 'SNAKE' &&
+      toCase !== 'KEBAB' &&
+      toCase !== 'CAMEL' &&
+      toCase !== 'PASCAL' &&
+      toCase !== 'UPPER'
+    ) {
+      errors.push({
+        message:
+          // eslint-disable-next-line max-len
+          'This case is not supported. Available cases: SNAKE, KEBAB, CAMEL, PASCAL, UPPER.',
+      });
+    }
+
+    if (errors.length > 0) {
+      res.statusCode = 400;
+
+      res.end(
+        JSON.stringify({
+          errors: [...errors],
+        }),
+      );
+
+      return;
+    }
+
+    res.statusCode = 200;
+
+    res.end(
+      JSON.stringify({
+        ...convertToCase(textToConvert, toCase),
+        originalText: textToConvert,
+        targetCase: toCase,
+      }),
+    );
+  });
+
+  return server;
+}
+
+module.exports = {
+  createServer,
+};