Add general search and refactor header

application/controllers/Search.php

@@ -0,0 +1,53 @@
+<?php
+    defined('BASEPATH') OR exit('No direct script access allowed');
+
+    use Coduo\PHPHumanizer\DateTimeHumanizer;
+
+    class Search extends MY_Controller
+    {
+
+        public function __construct()
+        {
+            parent::__construct('home', 'profile');
+            $this->load->model('SearchModel', '', TRUE);
+            $this->load->model('UserModel', '', TRUE);
+            $this->load->model('PostsModel', '', TRUE);
+        }
+
+        public function index()
+        {
+            $query = html_escape($this->input->get('q'));
+
+            $this->load->view('header', ['active' => 'search', 'title' => "Suche - $query", 'additionalStyles' => []]);
+            $this->load->view('search', ['query' => $query]);
+            $this->load->view('footer', ['additionalScripts' => ['search.js']]);
+        }
+
+        public function getSearchResults() {
+            header('Content-Type: application/json;charset=utf-8');
+
+            $query = $this->input->post('query');
+
+            if(strlen($query) < 3) {
+                echo json_encode(['error' => true, 'message' => 'search-term']);
+                exit;
+            }
+
+            $offset = filter_var($this->input->post('offset'), FILTER_VALIDATE_INT);
+            $filters = is_array($this->input->post('filters')) ? $this->input->post('filters') : [];
+
+            $results = $this->SearchModel->search($query, 5, $offset, $filters);
+
+            if(empty($results)) {
+                if($offset > 0) {
+                    $message = 'no-further-results';
+                } else {
+                    $message = 'no-results';
+                }
+                echo json_encode(['error' => true, 'message' => $message]);
+                exit;
+            }
+
+            echo json_encode($results, JSON_UNESCAPED_UNICODE);
+        }
+    }