get_titles_for_language added, celebrate input value check added

src/controllers/title.js

@@ -2,7 +2,7 @@ const database = require('../database/database.js')
 const not_found_error = require('../../lib/src/http/errors/not_found_error')
 
 const get_titles = async (req, res, next) => {
-    var titles = await database.get_titles()
+    var titles = await database.get_titles(req.query.start, req.query.count)
      
     if (!titles) {
         next(new not_found_error('titles not found'))
@@ -12,6 +12,18 @@ const get_titles = async (req, res, next) => {
     res.json(titles)
 }
 
+const get_titles_for_language = async (req, res, next) => {
+    var titles = await database.get_titles_for_language(req.query.start, req.query.count, req.query.language.toLowerCase())
+
+    if (!titles) {
+        next(new not_found_error('titles not found'))
+        return
+    }
+
+    res.json(titles)
+}
+
 module.exports = {
-    get_titles
+    get_titles,
+    get_titles_for_language
 }