<?php

// Работа с отслеживанием данных

defined('ROOT_DIR') || exit;

trait Events {
    private array $events = array();

    // Добавить функцию в Событие
    public function event_add($name, $function_name, $weight = 10, $lock = false): bool
    {
        $event_name = strtolower($name);
        $this->event_create($name);

        if($this->events[$event_name]["lock"]) return false;
        if($lock) $this->events[$event_name]["events"] = array();

        $this->events[$event_name]["events"][] = array("function_name" => $function_name, "weight" => $weight);
        $this->events[$event_name]["lock"] = $lock;
        return true;
    }

    // Запустить Событие
    public function event_start($name, $args = array())
    {
        $event_name = strtolower($name);
        $this->event_create($name);

        if(!is_array($this->events[$event_name])) return false;
        $events = $this->events[$event_name]["events"];

        if($this->events[$event_name]["lock"]) {
            $func_name = $events[0]["function_name"];
            if(is_callable($func_name)) {
                return $func_name(...$args);
            }
            if(!function_exists($func_name)) return false;
            return $func_name(...$args);
        }

        $results = array();
        foreach ($events as $key => $event) {
            $func_name = $event["function_name"];
            if(is_callable($func_name)) {
                $results[] = $func_name(...$args);
            } else {
                if(!function_exists($func_name)) return false;
                $results[] = $func_name(...$args);
            }
        }

        return $results;
    }

    // Поймать Событие
    public function event_form_capture(): bool
    {
        $values = array_replace_recursive($_GET, $_POST);
        foreach ($_FILES as $key => $field) {
            $file = $this->files_field_formate($key);
            if($file === false) continue;
            if(isset($values[$key])) $values[$key] = array_replace_recursive($values[$key], $file);
            else $values[$key] = $file;
        }
        if(!isset($values["b_event"])) return false;
        $this->event_start($values["b_event"], array($values));
        return true;
    }

    // Создать Событие для формы
    public function event_form($name)
    {
        $meta_dom = new DOM("input", false);
        $meta_dom->setAttribute("type", "hidden");
        $meta_dom->setAttribute("name", "b_event");
        $meta_dom->setAttribute("value", $name);
        echo $meta_dom->render();
    }

    // Создать Событие
    private function event_create($name): bool
    {
        if(isset($this->events[$name])) return true;
        $this->events[$name] = array();
        $this->events[$name]["events"] = array();
        return true;

    }
}