<?php
namespace ProVM\Common\Controller;

use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Ddeboer\Imap\MailboxInterface;
use ProVM\Common\Exception\Request\MissingArgument;
use ProVM\Common\Implement\Controller\Json;
use ProVM\Common\Service\Mailboxes as Service;
use ProVM\Emails\Model\Mailbox;

class Mailboxes
{
    use Json;

    public function __invoke(ServerRequestInterface $request, ResponseInterface $response, Service $service): ResponseInterface
    {
        $mailboxes = array_values(array_map(function(MailboxInterface $mailbox) use ($service) {
            $arr = ['name' => $mailbox->getName(), 'registered' => false];
            if ($service->isRegistered($mailbox->getName())) {
                $mb = $service->getLocalMailbox($mailbox->getName());
                $arr['id'] = $mb->getId();
                $arr['registered'] = true;
            }
            return $arr;
        }, $service->getAll()));
        $output = [
            'total' => count($mailboxes),
            'mailboxes' => $mailboxes
        ];
        return $this->withJson($response, $output);
    }
    public function registered(ServerRequestInterface $request, ResponseInterface $response, Service $service): ResponseInterface
    {
        $mailboxes = array_map(function(Mailbox $mailbox) {
            return $mailbox->toArray();
        }, $service->getRegistered());
        $output = [
            'total' => count($mailboxes),
            'mailboxes' => $mailboxes
        ];
        return $this->withJson($response, $output);
    }
    public function get(ServerRequestInterface $request, ResponseInterface $response, Service $service, int $mailbox_id): ResponseInterface
    {
        $mailbox = $service->getRepository()->fetchById($mailbox_id);
        return $this->withJson($response, ['mailbox' => $mailbox->toArray()]);
    }
    public function register(ServerRequestInterface $request, ResponseInterface $response, Service $service, \ProVM\Common\Service\Messages $messagesService): ResponseInterface
    {
        $body = $request->getBody();
        $json = \Safe\json_decode($body->getContents());
        if (!isset($json->mailboxes)) {
            throw new MissingArgument('mailboxes', 'array', 'mailboxes names');
        }
        $output = [
            'mailboxes' => $json->mailboxes,
            'total' => count($json->mailboxes),
            'registered' => [
                'total' => 0,
                'mailboxes' => []
            ]
        ];
        foreach ($json->mailboxes as $mailbox_name) {
            $arr = [
                'id' => '',
                'name' => $mailbox_name,
                'registered' => false
            ];
            if ($service->register($mailbox_name)) {
                $mailbox = $service->getLocalMailbox($mailbox_name);
                $arr['id'] = $mailbox->getId();
                $arr['registered'] = true;
                $output['registered']['total'] ++;
                $output['registered']['mailboxes'] []= $arr;
                $messagesService->grab($mailbox_name);
            }
        }
        return $this->withJson($response, $output, 201);
    }
    public function unregister(ServerRequestInterface $request, ResponseInterface $response, Service $service): ResponseInterface
    {
        $body = $request->getBody();
        $json = \Safe\json_decode($body->getContents());
        if (!isset($json->mailboxes)) {
            throw new MissingArgument('mailboxes', 'array', 'mailboxes ids');
        }
        $output = [
            'mailboxes' => $json->mailboxes,
            'total' => count($json->mailboxes),
            'unregistered' => [
                'total' => 0,
                'mailboxes' => []
            ]
        ];
        foreach ($json->mailboxes as $mailbox_id) {
            $mailbox = $service->getRepository()->fetchById($mailbox_id);
            if ($service->unregister($mailbox->getName())) {
                $output['unregistered']['total'] ++;
                $output['unregistered']['mailboxes'] []= [
                    'id' => $mailbox->getId(),
                    'name' => $mailbox->getName(),
                    'unregistered' => true
                ];
            }
        }
        return $this->withJson($response, $output);
    }
}