<?php

class BlacklistController extends Controller
{
    public function __construct($name, $request)
    {
        parent::__construct($name, $request);
    }

    /**
    * Process incoming request for the /blacklist endpoint
    *
    * @return    Response
    */
    public function processRequest()
    {
        $httpMethod=$this->request->getHttpMethod();
        $uriParams=$this->request->getUriParams();

        // Auth with token phase (id = 0 because not used when checking admin)
        $authResponse = $this->authUser(-1, 'admin');
        if($authResponse->getCode()!=200){
            return $authResponse;
        }

        switch ($httpMethod) {
            case 'GET':
                // If there is a uriParams, it is the /blacklist/{ip} endpoint
                if ($uriParams) {
                    return $this->checkBlacklist($uriParams[0]);
                }
                // Else, it is the /blacklist endpoint
                return $this->getAllBlacklistedIP();
                break;
            case 'POST':
                $body=$this->request->getData();
                return $this->addBlacklist($body);
                break;
            case 'DELETE':
                if ($uriParams) {
                    return $this->deleteBlacklist($uriParams[0]);
                }
                break;
        }
        $message = json_encode(["message" => "unsupported parameters or method in blacklists"]);
        return Response::errorResponse($message);
    }

    /**
    * (GET) Get all IP in BLACKLIST table
    *
    * @return    Response
    */
    protected function getAllBlacklistedIP()
    {
        $blacklists = Blacklist::getList();
        $response = Response::okResponse(json_encode($blacklists, JSON_PRETTY_PRINT));
        return $response;
    }

    /**
    * (GET) Check if a specific IP is in BLACKLIST table
    *
    * @param    int    $id    id of the Blacklist
    * @return    Response
    */
    protected function checkBlacklist($ip)
    {
        $isblacklisted = Blacklist::isBannedIP($ip);
        $response = Response::okResponse(json_encode(['isBlacklisted'=>$isblacklisted]));
        return $response;
    }

    /**
    * (POST) Add a specific IP in BLACKLIST table
    *
    * @param    array    $array    array containing
    * @return    Response
    */
    protected function addBlacklist($array)
    {
        $ip = $array['ip'];
        // Filter if it is not valid IP
        if(filter_var($ip, FILTER_VALIDATE_IP)){
            Blacklist::addIP($ip);
            $message = json_encode(["message" => 'IP succesfully blacklisted!']);
            $response = Response::createdResponse($message);
        }else{
            $message = json_encode(["message" => 'IP is not in valid format']);
            $response = Response::errorResponse($message);
        }
        return $response;
    }

    /**
    * (DELETE) Delete a specific IP in BLACKLIST
    *
    * @param    int    $ip    ip to delete
    * @return    Response
    */
    protected function deleteBlacklist($ip)
    {
        // Delete phase
        Blacklist::removeIP($ip);

        $message = json_encode(["message" => 'Blacklist succesfully deleted!']);
        $response = Response::okResponse($message);

        return $response;
    }
}