<?php
/************************************************************************
 * This file is part of EspoCRM.
 *
 * EspoCRM - Open Source CRM application.
 * Copyright (C) 2014-2018 Yuri Kuznetsov, Taras Machyshyn, Oleksiy Avramenko
 * Website: http://www.espocrm.com
 *
 * EspoCRM 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, either version 3 of the License, or
 * (at your option) any later version.
 *
 * EspoCRM 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 EspoCRM. If not, see http://www.gnu.org/licenses/.
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU General Public License version 3.
 *
 * In accordance with Section 7(b) of the GNU General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
 ************************************************************************/

namespace Espo\Modules\Crm\Services;

use \Espo\ORM\Entity;

use \Espo\Core\Exceptions\NotFound;
use \Espo\Core\Exceptions\BadRequest;
use \Espo\Core\Exceptions\Forbidden;

class TargetList extends \Espo\Services\Record
{
    protected $noEditAccessRequiredLinkList = ['accounts', 'contacts', 'leads', 'users'];

    protected $duplicatingLinkList = ['accounts', 'contacts', 'leads', 'users'];

    protected $entityTypeLinkMap = array(
        'Lead' => 'leads',
        'Account' => 'accounts',
        'Contact' => 'contacts',
        'User' => 'users'
    );

    protected $linkSelectParams = [
        'accounts' => [
            'additionalColumns' => [
                'optedOut' => 'targetListIsOptedOut'
            ]
        ],
        'contacts' => [
            'additionalColumns' => [
                'optedOut' => 'targetListIsOptedOut'
            ]
        ],
        'leads' => [
            'additionalColumns' => [
                'optedOut' => 'targetListIsOptedOut'
            ]
        ],
        'users' => [
            'additionalColumns' => [
                'optedOut' => 'targetListIsOptedOut'
            ]
        ]
    ];

    protected function init()
    {
        parent::init();
        $this->addDependencyList([
            'hookManager'
        ]);
    }

    public function loadAdditionalFields(Entity $entity)
    {
        parent::loadAdditionalFields($entity);
        $this->loadEntryCountField($entity);
        $this->loadOptedOutCountField($entity);
    }

    public function loadAdditionalFieldsForList(Entity $entity)
    {
        parent::loadAdditionalFields($entity);
        $this->loadEntryCountField($entity);
    }

    protected function loadEntryCountField(Entity $entity)
    {
        $count = 0;
        $count += $this->getEntityManager()->getRepository('TargetList')->countRelated($entity, 'contacts');
        $count += $this->getEntityManager()->getRepository('TargetList')->countRelated($entity, 'leads');
        $count += $this->getEntityManager()->getRepository('TargetList')->countRelated($entity, 'users');
        $count += $this->getEntityManager()->getRepository('TargetList')->countRelated($entity, 'accounts');
        $entity->set('entryCount', $count);
    }

    protected function loadOptedOutCountField(Entity $entity)
    {
        $count = 0;


        $count += $this->getEntityManager()->getRepository('Contact')->join(['targetLists'])->where([
            'targetListsMiddle.targetListId' => $entity->id,
            'targetListsMiddle.optedOut' => 1
        ])->count();

        $count += $this->getEntityManager()->getRepository('Lead')->join(['targetLists'])->where([
            'targetListsMiddle.targetListId' => $entity->id,
            'targetListsMiddle.optedOut' => 1
        ])->count();

        $count += $this->getEntityManager()->getRepository('Account')->join(['targetLists'])->where([
            'targetListsMiddle.targetListId' => $entity->id,
            'targetListsMiddle.optedOut' => 1
        ])->count();

        $count += $this->getEntityManager()->getRepository('User')->join(['targetLists'])->where([
            'targetListsMiddle.targetListId' => $entity->id,
            'targetListsMiddle.optedOut' => 1
        ])->count();

        $entity->set('optedOutCount', $count);
    }

    protected function afterCreate(Entity $entity, array $data = array())
    {
        if (array_key_exists('sourceCampaignId', $data) && !empty($data['includingActionList'])) {
            $excludingActionList = [];
            if (!empty($data['excludingActionList'])) {
                $excludingActionList = $data['excludingActionList'];
            }
            $this->populateFromCampaignLog($entity, $data['sourceCampaignId'], $data['includingActionList'], $excludingActionList);
        }
    }

    protected function populateFromCampaignLog(Entity $entity, $sourceCampaignId, $includingActionList, $excludingActionList)
    {
        if (empty($sourceCampaignId)) {
            throw new BadRequest();
        }
        $campaign = $this->getEntityManager()->getEntity('Campaign', $sourceCampaignId);
        if (!$campaign) {
            throw new NotFound();
        }
        if (!$this->getAcl()->check($campaign, 'read')) {
            throw new Forbidden();
        }

        $selectManager = $this->getSelectManagerFactory()->create('CampaignLogRecord');
        $selectParams = $selectManager->getEmptySelectParams();


        $selectParams['whereClause'][] = array(
            'isTest' => false
        );
        $selectParams['whereClause'][] = array(
            'campaignId' => $sourceCampaignId
        );

        $selectParams['select'] = ['id', 'parentId', 'parentType'];

        $notSelectParams = $selectParams;

        $selectParams['whereClause'][] = array(
            'action=' => $includingActionList
        );
        $selectParams['groupBy'] = ['parentId', 'parentType', 'id'];

        $notSelectParams['whereClause'][] = array(
            'action=' => $excludingActionList
        );
        $notSelectParams['select'] = ['id'];

        $list = $this->getEntityManager()->getRepository('CampaignLogRecord')->find($selectParams);

        foreach ($list as $logRecord) {
            if (!$logRecord->get('parentType')) continue;
            if (empty($this->entityTypeLinkMap[$logRecord->get('parentType')])) continue;

            if (!empty($excludingActionList)) {
                $clonedSelectParams = $notSelectParams;
                $clonedSelectParams['whereClause'][] = [
                    'parentType' => $logRecord->get('parentType'),
                    'parentId' => $logRecord->get('parentId'),
                ];
                if ($this->getEntityManager()->getRepository('CampaignLogRecord')->findOne($clonedSelectParams)) continue;
            }

            $relation = $this->entityTypeLinkMap[$logRecord->get('parentType')];
            $this->getRepository()->relate($entity, $relation, $logRecord->get('parentId'));
        }
    }

    public function unlinkAll($id, $link)
    {
        $entity = $this->getRepository()->get($id);
        if (!$entity) {
            throw new NotFound();
        }
        if (!$this->getAcl()->check($entity, 'edit')) {
            throw new Forbidden();
        }

        $foreignEntityType = $entity->getRelationParam($link, 'entity');
        if (!$foreignEntityType) {
            throw new Error();
        }

        if (empty($foreignEntityType)) {
            throw new Error();
        }

        $pdo = $this->getEntityManager()->getPDO();
        $query = $this->getEntityManager()->getQuery();
        $sql = null;

        switch ($link) {
            case 'contacts':
                $sql = "UPDATE contact_target_list SET deleted = 1 WHERE target_list_id = " . $query->quote($entity->id);
                break;
            case 'leads':
                $sql = "UPDATE lead_target_list SET deleted = 1 WHERE target_list_id  = " . $query->quote($entity->id);
                break;
            case 'accounts':
                $sql = "UPDATE account_target_list SET deleted = 1 WHERE target_list_id  = " . $query->quote($entity->id);
                break;
            case 'users':
                $sql = "UPDATE target_list_user SET deleted = 1 WHERE target_list_id  = " . $query->quote($entity->id);
                break;
        }
        if ($sql) {
            if ($pdo->query($sql)) {
                $this->getInjection('hookManager')->process('TargetList', 'afterUnlinkAll', $entity, array(), array('link' => $link));
                return true;
            }
        }
    }

    protected function findLinkedEntitiesOptedOut($id, $params)
    {
        $pdo = $this->getEntityManager()->getPDO();
        $query = $this->getEntityManager()->getQuery();

        $sqlContact = $query->createSelectQuery('Contact', array(
            'select' => ['id', 'name', 'createdAt', ['VALUE:Contact', '_scope']],
            'customJoin' => 'JOIN contact_target_list AS j ON j.contact_id = contact.id AND j.deleted = 0 AND j.opted_out = 1',
            'whereClause' => array(
                'j.targetListId' => $id
            )
        ));

        $sqlLead = $query->createSelectQuery('Lead', array(
            'select' => ['id', 'name', 'createdAt', ['VALUE:Lead', '_scope']],
            'customJoin' => 'JOIN lead_target_list AS j ON j.lead_id = lead.id AND j.deleted = 0 AND j.opted_out = 1',
            'whereClause' => array(
                'j.targetListId' => $id
            )
        ));

        $sqlUser = $query->createSelectQuery('User', array(
            'select' => ['id', 'name', 'createdAt', ['VALUE:User', '_scope']],
            'customJoin' => 'JOIN target_list_user AS j ON j.user_id = user.id AND j.deleted = 0 AND j.opted_out = 1',
            'whereClause' => array(
                'j.targetListId' => $id
            )
        ));

        $sqlAccount = $query->createSelectQuery('Account', array(
            'select' => ['id', 'name', 'createdAt', ['VALUE:Account', '_scope']],
            'customJoin' => 'JOIN account_target_list AS j ON j.account_id = account.id AND j.deleted = 0 AND j.opted_out = 1',
            'whereClause' => array(
                'j.targetListId' => $id
            )
        ));

        $sql = "
            {$sqlContact}
            UNION
            {$sqlLead}
            UNION
            {$sqlUser}
            UNION
            {$sqlAccount}
            ORDER BY createdAt DESC
        ";

        $sqlCount = "SELECT COUNT(*) AS 'count' FROM ({$sql}) AS c";

        $sql = $query->limit($sql, $params['offset'], $params['maxSize']);

        $sth = $pdo->prepare($sql);
        $sth->execute();
        $arr = [];
        while ($row = $sth->fetch(\PDO::FETCH_ASSOC)) {
            $arr[] = $row;
        }

        $sth = $pdo->prepare($sqlCount);
        $sth->execute();

        $row = $sth->fetch(\PDO::FETCH_ASSOC);
        $count = $row['count'];

        return array(
            'total' => $count,
            'list' => $arr
        );
    }

    public function optOut($id, $targetType, $targetId)
    {
        $targetList = $this->getEntityManager()->getEntity('TargetList', $id);
        if (!$targetList) {
            throw new NotFound();
        }
        $target = $this->getEntityManager()->getEntity($targetType, $targetId);
        if (!$target) {
            throw new NotFound();
        }
        $map = array(
            'Account' => 'accounts',
            'Contact' => 'contacts',
            'Lead' => 'leads',
            'User' => 'users'
        );

        if (empty($map[$targetType])) {
            throw new Error();
        }
        $link = $map[$targetType];

        $result = $this->getEntityManager()->getRepository('TargetList')->relate($targetList, $link, $targetId, array(
            'optedOut' => true
        ));

        if ($result) {
            $hookData = [
               'link' => $link,
               'targetId' => $targetId,
               'targetType' => $targetType
            ];

            $this->getInjection('hookManager')->process('TargetList', 'afterOptOut', $targetList, [], $hookData);
            return true;
        }
        return false;
    }

    public function cancelOptOut($id, $targetType, $targetId)
    {
        $targetList = $this->getEntityManager()->getEntity('TargetList', $id);
        if (!$targetList) {
            throw new NotFound();
        }
        $target = $this->getEntityManager()->getEntity($targetType, $targetId);
        if (!$target) {
            throw new NotFound();
        }
        $map = array(
            'Account' => 'accounts',
            'Contact' => 'contacts',
            'Lead' => 'leads',
            'User' => 'users'
        );

        if (empty($map[$targetType])) {
            throw new Error();
        }
        $link = $map[$targetType];

        $result = $this->getEntityManager()->getRepository('TargetList')->updateRelation($targetList, $link, $targetId, array(
            'optedOut' => false
        ));

        if ($result) {
            $hookData = [
               'link' => $link,
               'targetId' => $targetId,
               'targetType' => $targetType
            ];

            $this->getInjection('hookManager')->process('TargetList', 'afterCancelOptOut', $targetList, [], $hookData);
            return true;
        }
        return false;
    }

    protected function duplicateLinks(Entity $entity, Entity $duplicatingEntity)
    {
        $repository = $this->getRepository();

        foreach ($this->duplicatingLinkList as $link) {
            $linkedList = $repository->findRelated($duplicatingEntity, $link, array(
                'additionalColumnsConditions' => array(
                    'optedOut' => false
                )
            ));
            foreach ($linkedList as $linked) {
                $repository->relate($entity, $link, $linked, array(
                    'optedOut' => false
                ));
            }
        }
    }
}