<?php
require_once(__DIR__."/authenticator.inc.php");
require_once(__DIR__."/responses.inc.php");
require_once(__DIR__."/requestTypes.inc.php");
require_once(__DIR__."/paramCleaner.inc.php");

abstract class ApiBranch {
    function get (ParamCleaner $params) {}
    function post (ParamCleaner $params) {}
    function authenticationMissing (ParamCleaner $params) {
        respondStatus(403);
    }

    function execute ($authenticationRequired = true) {
        $params = $this->getParams();
        
        $currentType = currentRequestType();
        if ($currentType === RequestType::OPTIONS) {
            respondStatus(200);
        }

        if ($authenticationRequired) {
            $auth = new Authenticator();
            if (!$auth->isAuthenticated($params)) {
                $this->authenticationMissing($params);
                return;
            }
        }

        if ($currentType === RequestType::GET) {
            $this->get($params);
        } else if ($currentType === RequestType::POST) {
            $this->post($params);
        } else {
            respondStatus(405);
        }
    }

    private function getParams() {
        $content = json_decode(file_get_contents('php://input'), true);
        if ($content == NULL) $content = array();
        return new ParamCleaner(array_merge($content, $_REQUEST, $_SESSION, $_FILES));
    }
}
?>