<?php

/**
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; under version 2
 * of the License (non-upgradable).
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Copyright (c) 2017 (original work) Open Assessment Technologies SA (under the project TAO-PRODUCT);
 *
 */

namespace oat\taoTaskQueue\controller;

use common_session_SessionManager;
use oat\oatbox\filesystem\FileSystemService;
use oat\tao\model\routing\AnnotationReader\security;
use oat\taoTaskQueue\model\TaskLogInterface;

/**
 * @deprecated Use oat\taoTaskQueue\controller\TaskQueueWebApi instead!
 */
class RestTask extends \tao_actions_CommonModule
{
    const PARAMETER_TASK_ID = 'taskId';
    const PARAMETER_LIMIT = 'limit';
    const PARAMETER_OFFSET = 'offset';

    /** @var string */
    private $userId;

    /**
     * @inheritdoc
     * @security("hide")
     */
    public function __construct()
    {
        parent::__construct();

        $this->userId = common_session_SessionManager::getSession()->getUserUri();
    }

    /**
     * @throws \common_exception_NotImplemented
     */
    public function getAll()
    {
        if (!\tao_helpers_Request::isAjax()) {
            throw new \Exception('Only ajax call allowed.');
        }

        /** @var TaskLogInterface $taskLogService */
        $taskLogService = $this->getServiceManager()->get(TaskLogInterface::SERVICE_ID);
        $limit = $offset = null;

        if ($this->hasRequestParameter(self::PARAMETER_LIMIT)) {
            $limit = (int) $this->getRequestParameter(self::PARAMETER_LIMIT);
        }

        if ($this->hasRequestParameter(self::PARAMETER_OFFSET)) {
            $offset = (int) $this->getRequestParameter(self::PARAMETER_OFFSET);
        }

        return $this->returnJson([
            'success' => true,
            'data' => $taskLogService->findAvailableByUser($this->userId, $limit, $offset)->toArray()
        ]);
    }

    /**
     * @throws \common_exception_NotImplemented
     */
    public function get()
    {
        if (!\tao_helpers_Request::isAjax()) {
            throw new \Exception('Only ajax call allowed.');
        }

        /** @var TaskLogInterface $taskLogService */
        $taskLogService = $this->getServiceManager()->get(TaskLogInterface::SERVICE_ID);

        try {
            $this->assertTaskIdExists();

            $response = $taskLogService->getByIdAndUser(
                $this->getRequestParameter(self::PARAMETER_TASK_ID),
                $this->userId
            );

            return $this->returnJson([
                'success' => true,
                'data' => $response->toArray()
            ]);
        } catch (\Exception $e) {
            return $this->returnJson([
                'success' => false,
                'errorMsg' => $e instanceof \common_exception_UserReadableException ? $e->getUserMessage() : $e->getMessage(),
                'errorCode' => $e->getCode(),
            ]);
        }
    }

    /**
     * @throws \common_exception_NotImplemented
     */
    public function stats()
    {
        if (!\tao_helpers_Request::isAjax()) {
            throw new \Exception('Only ajax call allowed.');
        }

        /** @var TaskLogInterface $taskLogService */
        $taskLogService = $this->getServiceManager()->get(TaskLogInterface::SERVICE_ID);

        return $this->returnJson([
            'success' => true,
            'data' => $taskLogService->getStats($this->userId)->toArray()
        ]);
    }

    /**
     * @throws \common_exception_NotImplemented
     */
    public function archive()
    {
        if (!\tao_helpers_Request::isAjax()) {
            throw new \Exception('Only ajax call allowed.');
        }

        try {
            $this->assertTaskIdExists();

            /** @var TaskLogInterface $taskLogService */
            $taskLogService = $this->getServiceManager()->get(TaskLogInterface::SERVICE_ID);

            $taskLogEntity = $taskLogService->getByIdAndUser($this->getRequestParameter(self::PARAMETER_TASK_ID), $this->userId);

            return $this->returnJson([
                'success' => (bool) $taskLogService->archive($taskLogEntity)
            ]);
        } catch (\Exception $e) {
            return $this->returnJson([
                'success' => false,
                'errorMsg' => $e instanceof \common_exception_UserReadableException ? $e->getUserMessage() : $e->getMessage(),
                'errorCode' => $e instanceof \common_exception_NotFound ? 404 : $e->getCode(),
            ]);
        }
    }

    /**
     * Download the file created by task.
     */
    public function download()
    {
        try {
            $this->assertTaskIdExists();

            /** @var TaskLogInterface $taskLogService */
            $taskLogService = $this->getServiceManager()->get(TaskLogInterface::SERVICE_ID);

            $taskLogEntity = $taskLogService->getByIdAndUser($this->getRequestParameter(self::PARAMETER_TASK_ID), $this->userId);

            if (!$taskLogEntity->getStatus()->isCompleted()) {
                throw new \RuntimeException('Task "' . $taskLogEntity->getId() . '" is not downloadable.');
            }

            $filename = $taskLogEntity->getFileNameFromReport();

            if (empty($filename)) {
                throw new \LogicException('Filename not found in report.');
            }

            /** @var FileSystemService $fileSystem */
            $fileSystem = $this->getServiceManager()->get(FileSystemService::SERVICE_ID);
            $directory = $fileSystem->getDirectory('taskQueueStorage');
            $file = $directory->getFile($filename);

            header('Set-Cookie: fileDownload=true');
            setcookie('fileDownload', 'true', 0, '/');
            header('Content-Disposition: attachment; filename="' . $filename . '"');
            header('Content-Type: ' . $file->getMimeType());

            \tao_helpers_Http::returnStream($file->readPsrStream());
            exit();
        } catch (\Exception $e) {
            return $this->returnJson([
                'success' => false,
                'errorMsg' => $e instanceof \common_exception_UserReadableException ? $e->getUserMessage() : $e->getMessage(),
                'errorCode' => $e->getCode(),
            ]);
        }
    }

    /**
     * @throws \common_exception_MissingParameter
     */
    protected function assertTaskIdExists()
    {
        if (!$this->hasRequestParameter(self::PARAMETER_TASK_ID)) {
            throw new \common_exception_MissingParameter(self::PARAMETER_TASK_ID, $this->getRequestURI());
        }
    }
}