<?php

namespace Gogs\API\Request {

    abstract class Collection extends Base implements \Gogs\Lib\ArrayIterator {
        private $objs = array();

        public function add($obj, $key = null) {
            if (!isset($key))
                array_push($this->objs, $obj);
            else
                $this->objs[$key] = $obj;
        }

        public function remove($any) {
            if (isset($this->objs[$any])) {
                unset($this->objs[$any]);
                return true;
            } else if (in_array($any, $this->objs)) {
                $key = array_search($any, $this->objs, true);
                return $this->remove($key);
            }
            return false;
        }

        public function all() {
            return $this->objs;
        }

        public function len() {
            return count($this->objs);
        }

        public function by_key($idx) {
            return isset($this->objs[$idx]) ? $this->objs[$idx] : false;
        }

        public function next() {
            return next($this->objs);
        }

        public function prev() {
            return prev($this->objs);
        }

        public function current() {
            return current($this->objs);
        }

        public function reset() {
            return reset($this->objs);
        }

        /** 
         * Search for an object.
         *
         * @param array $params Parameters
         * @return Gogs\Lib\Collection
         */
        abstract public function search(array $params = array());
    }

}
?>