<?php

namespace Opentalent\OtAdmin\Http;


use Opentalent\OtAdmin\Controller\ScanController;
use Opentalent\OtAdmin\Controller\SiteController;
use Psr\Log\LoggerAwareInterface;
use Psr\Log\LoggerAwareTrait;
use TYPO3\CMS\Core\Http\JsonResponse;
use TYPO3\CMS\Core\Http\ServerRequest;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Extbase\Object\ObjectManager;

/**
 * Actions for Http API calls
 *
 * @package Opentalent\OtAdmin\Http
 */
class ApiController implements LoggerAwareInterface
{
    use LoggerAwareTrait;

    const ALLOWED_IPS = [
        '/^127\.0\.0\.[0-1]$/',
        '/^localhost$/',
        '/^10\.8\.0\.\d{1,3}$/',
        '/^80\.245\.24\.68$/',   // prod-front
        '/^80\.245\.24\.70$/',   // prod-back
        '/^80\.245\.24\.72$/',   // test
        '/^80\.245\.24\.74$/'    // preprod
    ];

    /**
     * Returns true if the client Ip is allowed
     *
     * @param string $clientIp
     * @return bool
     */
    public static function isIpAllowed(string $clientIp): bool
    {
        foreach (self::ALLOWED_IPS as $ipRule) {
            if (preg_match($ipRule, $clientIp)) {
                return true;
            }
        }
        return false;
    }

    /**
     * Check that the client Ip is allowed, else throw a Runtime error
     *
     * @return bool
     */
    private function assertIpAllowed(): bool
    {
        $clientIp = $_SERVER['REMOTE_ADDR'];
        if (!self::isIpAllowed($clientIp)){
            $route = $_REQUEST['route'];
            $this->logger->error(sprintf(
                "OtAdmin API: an attempt was made to call the route " .
                $route . " from an non-allowed IP (" . $clientIp . ")"));
            throw new \RuntimeException("Not allowed");
        }
        return true;
    }

    /**
     * Retrieve the organization's id from the given request parameters
     *
     * @param ServerRequest $request
     * @return int
     */
    private function getOrganizationId(ServerRequest $request): int
    {
        $params = $request->getQueryParams();
        $organizationId = $params['organization-id'];
        if (!$organizationId) {
            throw new \RuntimeException("Missing parameter: 'organization-id'");
        }
        return (int)$organizationId;
    }

    /**
     * -- Target of the route 'site_infos' --
     *
     * Return the main informations about the organization's website
     *
     * @param ServerRequest $request
     * @return JsonResponse
     * @throws \Exception
     */
    public function getSiteInfosAction(ServerRequest $request): JsonResponse
    {
        $this->assertIpAllowed();

        $organizationId = $this->getOrganizationId($request);

        $controller = GeneralUtility::makeInstance(ObjectManager::class)->get(SiteController::class);

        $infos = $controller->getSiteInfosAction($organizationId);

        return new JsonResponse($infos);
    }

    /**
     * -- Target of the route 'site_create' --
     * >> Requires a query param named 'organization-id' (int)
     *
     * Create the organization's website
     *
     * @param ServerRequest $request
     * @return JsonResponse
     * @throws \Exception
     */
    public function createSiteAction(ServerRequest $request): JsonResponse
    {
        $this->assertIpAllowed();

        $organizationId = $this->getOrganizationId($request);

        $controller = GeneralUtility::makeInstance(ObjectManager::class)->get(SiteController::class);
        $rootUid = $controller->createSiteAction($organizationId);

        $this->logger->info(sprintf(
            "OtAdmin API: A new website has been created with root page uid=" . $rootUid .
            " for the organization " . $organizationId));

        return new JsonResponse(
            [
                'organization_id' => $organizationId,
                'msg' => "A new website has been created with root page uid=" . $rootUid,
                'root_uid' => $rootUid
            ]
        );
    }

    /**
     * -- Target of the route 'site_update' --
     * >> Requires a query param named 'organization-id' (int)
     *
     * Update the settings of the organization's website
     *
     * @param ServerRequest $request
     * @return JsonResponse
     * @throws \Exception
     */
    public function updateSiteConstantsAction(ServerRequest $request): JsonResponse
    {
        $this->assertIpAllowed();

        $organizationId = $this->getOrganizationId($request);
        $deep = (isset($queryParams['deep']) && $queryParams['deep']);

        $controller = GeneralUtility::makeInstance(ObjectManager::class)->get(SiteController::class);
        $rootUid = $controller->updateSiteAction($organizationId, $deep);

        $this->logger->info(sprintf(
            "OtAdmin API: The website with root uid " . $rootUid . " has been updated " .
            " (organization: " . $organizationId . ")"));

        return new JsonResponse(
            [
                'organization_id' => $organizationId,
                'msg' => "The website with root uid " . $rootUid . " has been updated",
                'root_uid' => $rootUid
            ]
        );
    }

    /**
     * -- Target of the route 'site_delete' --
     * >> Requires a query param named 'organization-id' (int)
     *
     * Proceeds to a soft-deletion of the organization's website
     *
     * @param ServerRequest $request
     * @return JsonResponse
     * @throws \Exception
     */
    public function deleteSiteAction(ServerRequest $request): JsonResponse
    {
        $this->assertIpAllowed();

        $organizationId = $this->getOrganizationId($request);

        $params = $request->getQueryParams();
        $redirectTo = isset($params['redirect-to']) ? $params['redirect-to'] : null;

        $controller = GeneralUtility::makeInstance(ObjectManager::class)->get(SiteController::class);
        $rootUid = $controller->deleteSiteAction($organizationId, false, $redirectTo);

        $this->logger->info(sprintf(
            "OtAdmin API: The website with root uid " . $rootUid . " has been soft-deleted " .
            " (organization: " . $organizationId . ")"));

        return new JsonResponse(
            [
                'organization_id' => $organizationId,
                'msg' => "The website with root uid " . $rootUid . " has been soft-deleted. Use the /site/undelete route to restore it.",
                'root_uid' => $rootUid
            ]
        );
    }

    /**
     * -- Target of the route 'site_undelete' --
     * >> Requires a query param named 'organization-id' (int)
     *
     * Restore a soft-deleted organization's website
     *
     * @param ServerRequest $request
     * @return JsonResponse
     * @throws \Exception
     */
    public function undeleteSiteAction(ServerRequest $request): JsonResponse
    {
        $this->assertIpAllowed();

        $organizationId = $this->getOrganizationId($request);

        $controller = GeneralUtility::makeInstance(ObjectManager::class)->get(SiteController::class);
        $rootUid = $controller->undeleteSiteAction($organizationId);

        $this->logger->info(sprintf(
            "OtAdmin API: The website with root uid " . $rootUid . " has been restored " .
            " (organization: " . $organizationId . ")"));

        return new JsonResponse(
            [
                'organization_id' => $organizationId,
                'msg' => "The website with root uid " . $rootUid . " has been restored",
                'root_uid' => $rootUid
            ]
        );
    }

    /**
     * -- Target of the route 'site_clearcache' --
     * >> Requires a query param named 'organization-id' (int)
     *
     * Clear the cache of the organization's website
     *
     * @param ServerRequest $request
     * @return JsonResponse
     * @throws \Exception
     */
    public function clearSiteCacheAction(ServerRequest $request): JsonResponse
    {
        $this->assertIpAllowed();

        $organizationId = $this->getOrganizationId($request);

        $controller = GeneralUtility::makeInstance(ObjectManager::class)->get(SiteController::class);
        $rootUid = $controller->clearSiteCacheAction($organizationId);

        return new JsonResponse(
            [
                'organization_id' => $organizationId,
                'msg' => "The cache has been cleared for the website with root uid " . $rootUid . "",
                'root_uid' => $rootUid
            ]
        );
    }

    /**
     * -- Target of the route 'site_setdomain' --
     * >> Requires a query param named 'organization-id' (int)
     *
     * Set a new domain for the organization website
     *
     * @param ServerRequest $request
     * @return JsonResponse
     * @throws \Exception
     */
    public function setSiteCustomDomainAction(ServerRequest $request): JsonResponse
    {
        $this->assertIpAllowed();

        $organizationId = $this->getOrganizationId($request);

        $queryParams = $request->getQueryParams();
        $domain = $queryParams['domain'];
        if (!$domain) {
            throw new \RuntimeException("Missing 'domain' parameter");
        }
        $redirect = (isset($queryParams['redirect']) && $queryParams['redirect']);

        $controller = GeneralUtility::makeInstance(ObjectManager::class)->get(SiteController::class);
        $rootUid = $controller->setSiteCustomDomainAction($organizationId, $domain, $redirect);

        return new JsonResponse(
            [
                'organization_id' => $organizationId,
                'msg' => "The cache has been cleared for the website with root uid " . $rootUid . "",
                'root_uid' => $rootUid
            ]
        );
    }

    /**
     * -- Target of the route 'site_resetperms' --
     * >> Requires a query param named 'organization-id' (int)
     *
     * Reset the permissions of the website be users (admin, editors...)
     *
     * @param ServerRequest $request
     * @return JsonResponse
     * @throws \Exception
     */
    public function resetBeUserPermsAction(ServerRequest $request): JsonResponse
    {
        $this->assertIpAllowed();

        $organizationId = $this->getOrganizationId($request);

        $controller = GeneralUtility::makeInstance(ObjectManager::class)->get(SiteController::class);
        $rootUid = $controller->resetBeUserPermsAction($organizationId);

        return new JsonResponse(
            [
                'organization_id' => $organizationId,
                'msg' => "The website with root uid " . $rootUid . " had its be users permissions reset",
                'root_uid' => $rootUid
            ]
        );
    }

    /**
     * -- Target of the route 'site_reindex' --
     * >> Requires a query param named 'organization-id' (int)
     *
     * Update the routing index for the given website
     *
     * @param ServerRequest $request
     * @return JsonResponse
     * @throws \Exception
     */
    public function updateRoutingIndexAction(ServerRequest $request): JsonResponse
    {
        $this->assertIpAllowed();

        $organizationId = $this->getOrganizationId($request);

        $controller = GeneralUtility::makeInstance(ObjectManager::class)->get(SiteController::class);
        $rootUid = $controller->updateRoutingIndexAction($organizationId);

        return new JsonResponse(
            [
                'organization_id' => $organizationId,
                'msg' => "The website with root uid " . $rootUid . " routing index has been updated",
                'root_uid' => $rootUid
            ]
        );
    }

    /**
     * -- Target of the route 'site_status' --
     * >> Requires a query param named 'organization-id' (int)
     *
     * Returns the current status of the website
     *
     * @param ServerRequest $request
     * @return JsonResponse
     * @throws \Exception
     */
    public function getSiteStatusAction(ServerRequest $request): JsonResponse
    {
        $this->assertIpAllowed();

        $organizationId = $this->getOrganizationId($request);

        $controller = GeneralUtility::makeInstance(ObjectManager::class)->get(SiteController::class);

        $queryParams = $request->getQueryParams();
        $full = (isset($queryParams['full']) && $queryParams['full']);
        $status = $controller->getSiteStatusAction($organizationId, $full);

        return new JsonResponse($status->toArray());
    }

    /**
     * -- Target of the route 'scan' --
     *
     * Scan the whole Typo3 database and return the results
     *
     * @param ServerRequest $request
     * @return JsonResponse
     * @throws \Exception
     */
    public function scanAllAction(ServerRequest $request): JsonResponse
    {
        $this->assertIpAllowed();

        $controller = GeneralUtility::makeInstance(ObjectManager::class)->get(ScanController::class);

        $queryParams = $request->getQueryParams();
        $full = (isset($queryParams['full']) && $queryParams['full']);
        $results = $controller->scanAllAction($full);

        return new JsonResponse($results);
    }
}