Common files

common/Helper/Tree.php

@@ -0,0 +1,58 @@
+<?php
+namespace ProVM\Common\Helper;
+
+class Tree {
+  protected $merger;
+  public function __construct($separator) {
+    $this->merger = new Merger($separator);
+  }
+  protected $tree;
+  public function add($value, $parent = null, $alias = null): Tree {
+    if ($parent === null) {
+      if ($alias === null) {
+        $this->tree []= $value;
+        return $this;
+      }
+      $this->tree[$alias] = $value;
+      return $this;
+    }
+    if (!isset($this->tree[$parent])) {
+      return $this;
+    }
+    if ($alias === null) {
+      $this->tree []= $this->merger->start()
+        ->add($this->tree[$parent])
+        ->add($value)
+        ->merge();
+      return $this;
+    }
+    $this->tree[$alias] = $this->merger->start()
+      ->add($this->tree[$parent])
+      ->add($value)
+      ->merge();
+    return $this;
+  }
+  public function check_keys($tree) {
+    $bool = true;
+    foreach ($tree as $def) {
+      if (!isset($def[2])) {
+        continue;
+      }
+      $key = $def[2];
+      $bool &= array_key_exists($key, $this->tree);
+    }
+    return $bool;
+  }
+  public function addTree($tree) {
+    while (!$this->check_keys($tree)) {
+      foreach ($tree as $def) {
+        $this->add($def[0], $def[1] ?? null, $def[2] ?? null);
+      }
+    }
+  }
+  public function build($tree) {
+    $this->tree = [];
+    $this->addTree($tree);
+    return (object) $this->tree;
+  }
+}