refactor search for using search by pertinence

src/Bundle/ChillMainBundle/Search/Utils/ExtractDateFromPattern.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace Chill\MainBundle\Search\Utils;
+
+use \DateTimeImmutable;
+
+class ExtractDateFromPattern
+{
+    private const DATE_PATTERN = [
+        ["([12]\d{3}-(0[1-9]|1[0-2])-(0[1-9]|[12]\d|3[01]))", 'Y-m-d'], // 1981-05-12
+        ["((0[1-9]|[12]\d|3[01])\/(0[1-9]|1[0-2])\/([12]\d{3}))", 'd/m/Y'], // 15/12/1980
+        ["((0[1-9]|[12]\d|3[01])-(0[1-9]|1[0-2])-([12]\d{3}))", 'd-m-Y'], // 15/12/1980
+    ];
+
+    public function extractDates(string $subject): SearchExtractionResult
+    {
+        $dates = [];
+        $filteredSubject = $subject;
+
+        foreach (self::DATE_PATTERN as [$pattern, $format]) {
+            $matches = [];
+            \preg_match_all($pattern, $filteredSubject, $matches);
+
+            foreach ($matches[0] as $match) {
+                $date = DateTimeImmutable::createFromFormat($format, $match);
+                if (false !== $date) {
+                    $dates[] = $date;
+                    // filter string: remove what is found
+                    $filteredSubject = \trim(\strtr($filteredSubject, [$match => ""]));
+                }
+            }
+        }
+
+        return new SearchExtractionResult($filteredSubject, $dates);
+    }
+}