<?php

declare(strict_types=1);

/**
 * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

namespace OCA\Social\Db;

use OCA\Social\Exceptions\CacheActorDoesNotExistException;
use OCA\Social\Exceptions\InvalidResourceException;
use OCA\Social\Model\ActivityPub\Actor\Person;
use OCA\Social\Model\ActivityPub\Stream;
use OCA\Social\Tools\Exceptions\RowNotFoundException;
use OCA\Social\Tools\Traits\TArrayTools;

class CacheActorsRequestBuilder extends CoreRequestBuilder {
	use TArrayTools;


	/**
	 * Base of the Sql Insert request
	 *
	 * @return SocialQueryBuilder
	 */
	protected function getCacheActorsInsertSql(): SocialQueryBuilder {
		$qb = $this->getQueryBuilder();
		$qb->insert(self::TABLE_CACHE_ACTORS);

		return $qb;
	}


	/**
	 * Base of the Sql Update request
	 *
	 * @return SocialQueryBuilder
	 */
	protected function getCacheActorsUpdateSql(): SocialQueryBuilder {
		$qb = $this->getQueryBuilder();
		$qb->update(self::TABLE_CACHE_ACTORS);

		return $qb;
	}


	/**
	 * Base of the Sql Select request for Shares
	 *
	 * @return SocialQueryBuilder
	 */
	protected function getCacheActorsSelectSql(int $format = Stream::FORMAT_ACTIVITYPUB): SocialQueryBuilder {
		$qb = $this->getQueryBuilder();
		$qb->setFormat($format);

		/** @noinspection PhpMethodParametersCountMismatchInspection */
		$qb->select(
			'ca.nid', 'ca.id', 'ca.account', 'ca.following', 'ca.followers', 'ca.inbox',
			'ca.shared_inbox', 'ca.outbox', 'ca.featured', 'ca.url', 'ca.type', 'ca.preferred_username',
			'ca.name', 'ca.summary', 'ca.public_key', 'ca.local', 'ca.details', 'ca.source', 'ca.creation',
			'ca.details_update'
		)
		   ->from(self::TABLE_CACHE_ACTORS, 'ca');

		$qb->setDefaultSelectAlias('ca');

		/** @deprecated */
		$this->defaultSelectAlias = 'ca';

		return $qb;
	}


	/**
	 * Base of the Sql Delete request
	 *
	 * @return SocialQueryBuilder
	 */
	protected function getCacheActorsDeleteSql(): SocialQueryBuilder {
		$qb = $this->getQueryBuilder();
		$qb->delete(self::TABLE_CACHE_ACTORS);

		return $qb;
	}


	/**
	 * @param SocialQueryBuilder $qb
	 *
	 * @return Person
	 * @throws CacheActorDoesNotExistException
	 */
	protected function getCacheActorFromRequest(SocialQueryBuilder $qb): Person {
		/** @var Person $result */
		try {
			$result = $qb->getRow([$this, 'parseCacheActorsSelectSql']);
		} catch (RowNotFoundException $e) {
			throw new CacheActorDoesNotExistException('Actor is not known');
		}

		return $result;
	}


	/**
	 * @param SocialQueryBuilder $qb
	 *
	 * @return Person[]
	 */
	public function getCacheActorsFromRequest(SocialQueryBuilder $qb): array {
		/** @var Person[] $result */
		$result = $qb->getRows([$this, 'parseCacheActorsSelectSql']);

		return $result;
	}


	/**
	 * @param array $data
	 *
	 * @param SocialQueryBuilder $qb
	 *
	 * @return Person
	 */
	public function parseCacheActorsSelectSql(array $data, SocialQueryBuilder $qb): Person {
		$actor = new Person();
		$actor->setExportFormat($qb->getFormat());

		try {
			$icon = $qb->parseLeftJoinCacheDocuments($data);
			$actor->setIcon($icon);
		} catch (InvalidResourceException $e) {
		}

		$actor->importFromDatabase($data);

		$this->assignViewerLink($qb, $actor);
		$this->assignDetails($actor, $data);

		return $actor;
	}


	/**
	 * @param SocialQueryBuilder $qb
	 * @param Person $actor
	 */
	private function assignViewerLink(SocialQueryBuilder $qb, Person $actor) {
		if ($actor->isLocal()) {
			$link = Person::LINK_LOCAL;
			if ($qb->hasViewer()
				&& $qb->getViewer()
					  ->getId() === $actor->getId()) {
				$link = Person::LINK_VIEWER;
			}
		} else {
			$link = Person::LINK_REMOTE;
		}

		$actor->setViewerLink($link);
	}
}
