<?php

namespace Directus\Api\Routes;

use Directus\Application\Application;
use Directus\Application\Http\Request;
use Directus\Application\Http\Response;
use Directus\Application\Route;
use Directus\Database\Schema\SchemaManager;
use Directus\Database\TableGateway\DirectusUsersTableGateway;
use Directus\Services\RevisionsService;
use Directus\Services\UsersService;

class Users extends Route
{
    /** @var $usersGateway DirectusUsersTableGateway */
    protected $usersGateway;

    /**
     * @param Application $app
     */
    public function __invoke(Application $app)
    {
        $app->get('', [$this, 'all']);
        $app->post('', [$this, 'create']);
        $app->get('/{id}', [$this, 'read']);
        $app->post('/invite', [$this, 'invite']);
        $app->map(['GET', 'POST'], '/invite/{token}', [$this, 'acceptInvitation']);
        $app->patch('/{id}', [$this, 'update']);
        $app->delete('/{id}', [$this, 'delete']);

        // Revisions
        $app->get('/{id}/revisions', [$this, 'userRevisions']);
        $app->get('/{id}/revisions/{offset}', [$this, 'oneUserRevision']);

        // Tracking
        $app->patch('/{id}/tracking/page', [$this, 'trackPage']);

        // Enable 2FA
        $app->post('/{id}/activate_2fa', [$this, 'activate2FA']);
    }

    /**
     * @param Request $request
     * @param Response $response
     *
     * @return Response
     */
    public function all(Request $request, Response $response)
    {
        $service = new UsersService($this->container);
        $responseData = $service->findAll(
            $request->getQueryParams()
        );

        return $this->responseWithData($request, $response, $responseData);
    }

    /**
     * @param Request $request
     * @param Response $response
     *
     * @return Response
     */
    public function create(Request $request, Response $response)
    {
        $this->validateRequestPayload($request);
        $payload = $request->getParsedBody();
        if (isset($payload[0]) && is_array($payload[0])) {
            return $this->batch($request, $response);
        }
        $service = new UsersService($this->container);
        $responseData = $service->create(
            $payload,
            $request->getQueryParams()
        );

        return $this->responseWithData($request, $response, $responseData);
    }

    /**
     * @param Request $request
     * @param Response $response
     *
     * @return Response
     */
    public function read(Request $request, Response $response)
    {
        $service = new UsersService($this->container);
        $responseData = $service->findByIds(
            $request->getAttribute('id'),
            $request->getQueryParams()
        );

        return $this->responseWithData($request, $response, $responseData);
    }

    /**
     * @param Request $request
     * @param Response $response
     *
     * @return Response
     */
    public function invite(Request $request, Response $response)
    {
        $this->validateRequestPayload($request);
        $service = new UsersService($this->container);

        $responseData = $service->invite(
            $request->getParsedBodyParam('email'),
            $request->getQueryParams()
        );

        return $this->responseWithData($request, $response, $responseData);
    }

    /**
     * @param Request $request
     * @param Response $response
     *
     * @return Response
     */
    public function update(Request $request, Response $response)
    {
        $this->validateRequestPayload($request);
        $service = new UsersService($this->container);

        $payload = $request->getParsedBody();
        if (isset($payload[0]) && is_array($payload[0])) {
            return $this->batch($request, $response);
        }

        $id = $request->getAttribute('id');

        if (strpos($id, ',') !== false) {
            return $this->batch($request, $response);
        }

        $responseData = $service->update(
            $id,
            $payload,
            $request->getQueryParams()
        );

        return $this->responseWithData($request, $response, $responseData);
    }

    /**
     * @param Request $request
     * @param Response $response
     *
     * @return Response
     */
    public function delete(Request $request, Response $response)
    {
        $service = new UsersService($this->container);

        $id = $request->getAttribute('id');
        if (strpos($id, ',') !== false) {
            return $this->batch($request, $response);
        }

        $service->delete(
            $id,
            $request->getQueryParams()
        );

        return $this->responseWithData($request, $response, []);
    }

    /**
     * @param Request $request
     * @param Response $response
     *
     * @return Response
     *
     * @throws \Exception
     */
    protected function batch(Request $request, Response $response)
    {
        $service = new UsersService($this->container);

        $payload = $request->getParsedBody();
        $params = $request->getQueryParams();

        $responseData = null;
        if ($request->isPost()) {
            $responseData = $service->batchCreate($payload, $params);
        } else if ($request->isPatch()) {
            if ($request->getAttribute('id')) {
                $ids = explode(',', $request->getAttribute('id'));
                $responseData = $service->batchUpdateWithIds( $ids, $payload, $params);
            } else {
                $responseData = $service->batchUpdate($payload, $params);
            }
        } else if ($request->isDelete()) {
            $ids = explode(',', $request->getAttribute('id'));
            $service->batchDeleteWithIds($ids, $params);
        }

        return $this->responseWithData($request, $response, $responseData);
    }


    /**
     * @param Request $request
     * @param Response $response
     *
     * @return Response
     */
    public function userRevisions(Request $request, Response $response)
    {
        $service = new RevisionsService($this->container);
        $responseData = $service->findAllByItem(
            SchemaManager::COLLECTION_USERS,
            $request->getAttribute('id'),
            $request->getQueryParams()
        );

        return $this->responseWithData($request, $response, $responseData);
    }

    /**
     * @param Request $request
     * @param Response $response
     *
     * @return Response
     */
    public function oneUserRevision(Request $request, Response $response)
    {
        $service = new RevisionsService($this->container);
        $responseData = $service->findOneByItemOffset(
            SchemaManager::COLLECTION_USERS,
            $request->getAttribute('id'),
            $request->getAttribute('offset'),
            $request->getQueryParams()
        );

        return $this->responseWithData($request, $response, $responseData);
    }

    /**
     * @param Request $request
     * @param Response $response
     *
     * @return Response
     */
    public function trackPage(Request $request, Response $response)
    {
        $this->validateRequestPayload($request);
        $service = new UsersService($this->container);
        $responseData = $service->updateLastPage(
            $request->getAttribute('id'),
            $request->getParsedBodyParam('last_page'),
            $request->getQueryParams()
        );

        return $this->responseWithData($request, $response, $responseData);
    }

    /**
     * @param Request $request
     * @param Response $response
     *
     * @return Response
     */
    public function acceptInvitation(Request $request, Response $response)
    {
        $service = new UsersService($this->container);
        $responseData = $service->enableUserWithInvitation(
            $request->getAttribute('token')
        );

        return $this->responseWithData($request, $response, $responseData);
    }

    /**
     * @param Request $request
     * @param Response $response
     *
     * @return Response
     */
    public function activate2FA(Request $request, Response $response)
    {
        $this->validateRequestPayload($request);
        $service = new UsersService($this->container);
        $responseData = $service->activate2FA(
            $request->getAttribute('id'),
            $request->getParsedBodyParam('2fa_secret'),
            $request->getParsedBodyParam('otp')
        );

        return $this->responseWithData($request, $response, $responseData);
    }

}