<?php

/**
 * Nextcloud - Maps
 *
 * This file is licensed under the Affero General Public License version 3 or
 * later. See the COPYING file.
 *
 * @author Julien Veyssier <eneiluj@posteo.net>
 * @copyright Julien Veyssier 2019
 */

namespace OCA\Maps\Controller;

use OCA\Maps\Service\TracksService;
use OCP\App\IAppManager;
use OCP\AppFramework\Controller;
use OCP\AppFramework\Http\DataResponse;
use OCP\IConfig;
use OCP\IGroupManager;
use OCP\IL10N;
use OCP\IRequest;
use OCP\IServerContainer;
use OCP\IUserManager;
use OCP\Share\IManager;

use function OCA\Maps\Helper\remove_utf8_bom;

class TracksController extends Controller {

	private $userId;
	private $userfolder;
	private $config;
	private $appVersion;
	private $shareManager;
	private $userManager;
	private $groupManager;
	private $dbtype;
	private $dbdblquotes;
	private $l;
	private $tracksService;
	protected $appName;

	public function __construct($AppName,
		IRequest $request,
		IServerContainer $serverContainer,
		IConfig $config,
		IManager $shareManager,
		IAppManager $appManager,
		IUserManager $userManager,
		IGroupManager $groupManager,
		IL10N $l,
		TracksService $tracksService,
		$UserId) {
		parent::__construct($AppName, $request);
		$this->tracksService = $tracksService;
		$this->appName = $AppName;
		$this->appVersion = $config->getAppValue('maps', 'installed_version');
		$this->userId = $UserId;
		$this->userManager = $userManager;
		$this->groupManager = $groupManager;
		$this->l = $l;
		$this->dbtype = $config->getSystemValue('dbtype');
		$this->config = $config;
		if ($UserId !== '' and $UserId !== null and $serverContainer !== null) {
			$this->userfolder = $serverContainer->getUserFolder($UserId);
		}
		$this->shareManager = $shareManager;
	}

	/**
	 * @NoAdminRequired
	 * @return DataResponse
	 * @throws \OCP\Files\InvalidPathException
	 * @throws \OCP\Files\NotFoundException
	 */
	public function getTracks($myMapId = null): DataResponse {
		if (is_null($myMapId) || $myMapId === '') {
			$tracks = $this->tracksService->getTracksFromDB($this->userId, $this->userfolder, true, false, true);
		} else {
			$folders = $this->userfolder->getById($myMapId);
			$folder = array_shift($folders);
			$tracks = $this->tracksService->getTracksFromDB($this->userId, $folder, true, false, false);
		}
		return new DataResponse($tracks);
	}

	/**
	 * @NoAdminRequired
	 */
	public function getTrackContentByFileId($id) {
		$track = $this->tracksService->getTrackByFileIDFromDB($id, $this->userId);
		$res = is_null($track) ? null : $this->userfolder->getById($track['file_id']);
		if (is_array($res) and count($res) > 0) {
			$trackFile = $res[0];
			if ($trackFile->getType() === \OCP\Files\FileInfo::TYPE_FILE) {
				$trackContent = remove_utf8_bom($trackFile->getContent());
				// compute metadata if necessary
				// first time we get it OR the file changed
				if (!$track['metadata'] || $track['etag'] !== $trackFile->getEtag()) {
					$metadata = $this->tracksService->generateTrackMetadata($trackFile);
					$this->tracksService->editTrackInDB($track['id'], null, $metadata, $trackFile->getEtag());
				} else {
					$metadata = $track['metadata'];
				}
				return new DataResponse([
					'metadata' => $metadata,
					'content' => $trackContent
				]);
			} else {
				return new DataResponse($this->l->t('Bad file type'), 400);
			}
		} else {
			return new DataResponse($this->l->t('File not found'), 400);
		}
	}

	/**
	 * @NoAdminRequired
	 * @param $id
	 * @return DataResponse
	 * @throws \OCP\Files\InvalidPathException
	 * @throws \OCP\Files\NotFoundException
	 */
	public function getTrackFileContent($id): DataResponse {
		$track = $this->tracksService->getTrackFromDB($id);
		$res = is_null($track) ? null : $this->userfolder->getById($track['file_id']);
		if (is_array($res) and count($res) > 0) {
			$trackFile = $res[0];
			if ($trackFile->getType() === \OCP\Files\FileInfo::TYPE_FILE) {
				$trackContent = remove_utf8_bom($trackFile->getContent());
				// compute metadata if necessary
				// first time we get it OR the file changed
				if (!$track['metadata'] || $track['etag'] !== $trackFile->getEtag()) {
					$metadata = $this->tracksService->generateTrackMetadata($trackFile);
					$this->tracksService->editTrackInDB($track['id'], null, $metadata, $trackFile->getEtag());
				} else {
					$metadata = $track['metadata'];
				}
				return new DataResponse([
					'metadata' => $metadata,
					'content' => $trackContent
				]);
			} else {
				return new DataResponse($this->l->t('Bad file type'), 400);
			}
		} else {
			return new DataResponse($this->l->t('File not found'), 400);
		}
	}

	/**
	 * @NoAdminRequired
	 * @param $id
	 * @param $color
	 * @param $metadata
	 * @param $etag
	 * @return DataResponse
	 */
	public function editTrack($id, $color, $metadata, $etag): DataResponse {
		$track = $this->tracksService->getTrackFromDB($id, $this->userId);
		if ($track !== null) {
			$this->tracksService->editTrackInDB($id, $color, $metadata, $etag);
			return new DataResponse('EDITED');
		} else {
			return new DataResponse($this->l->t('No such track'), 400);
		}
	}

	/**
	 * @NoAdminRequired
	 * @param $id
	 * @return DataResponse
	 */
	public function deleteTrack($id): DataResponse {
		$track = $this->tracksService->getTrackFromDB($id, $this->userId);
		if ($track !== null) {
			$this->tracksService->deleteTrackFromDB($id);
			return new DataResponse('DELETED');
		} else {
			return new DataResponse($this->l->t('No such track'), 400);
		}
	}

}