WIP refactoring newsLib - late additions

homepage/cwsvJudo/src/pages/test/phpLibs/cwsvJudo/news.php

@@ -0,0 +1,88 @@
+<?php
+
+namespace cwsvJudo\News;
+
+function swap(mixed &$x, mixed &$y) : void{
+    $tmp=$x;
+    $x=$y;
+    $y=$tmp;
+}
+
+function filter_integer_range(mixed $value, ?int $min = null, ?int $max = null) : ?int {
+    $options = ["options"=>["flags"=> FILTER_NULL_ON_FAILURE]];
+    
+    if (!is_null($min) && !is_null($max)){
+        if( $min > $max ){
+            swap($min, $max);
+        }
+    }
+
+    if(!is_null($min)){
+        $options["options"]["min_range"] = $min;
+    }
+
+    if(!is_null($max)){
+        $options["options"]["max_range"] = $max;
+    }
+
+    return filter_var(
+        $value,
+        FILTER_VALIDATE_INT,
+        $options,
+    );
+
+}
+
+function filter_integer(mixed $value) : ?int {
+    return filter_integer_range($value);
+}
+
+function filter_id(mixed $value, int $min = 0) : ?int {
+    return filter_integer_range($value, $min, null);
+}
+
+function filter_url(mixed $value){
+    return filter_var(
+        $value,
+        FILTER_VALIDATE_URL,
+        ["options" => ["flags" => FILTER_NULL_ON_FAILURE]]
+    );
+}
+
+class PromoImage {
+    public function __construct(array $data) { 
+        $this->src = filter_url($data["src"]);
+        $this->height = filter_integer_range(
+            value: $data["height"],
+            min: 0,
+            max: null
+        );
+        $this->width = filter_integer_range($data["width"], 0, null);
+    }
+
+    public function to_json(){
+        return json_encode(
+            value: [
+                "src" => $this->src,
+                "width" => $this->width,
+                "height" => $this->height
+            ]
+        );
+    }
+
+    private string $src;
+    private int $width;
+    private int $height;
+}
+
+// a single news entry
+class Entry{
+
+    // private
+    private int $id;
+    private \DateTime $date;
+    private string $title;
+    private string $content;
+    private string $author;
+    private PromoImage $promo;
+}