<?php

namespace Kanboard\Plugin\Group_assign\Model;

use Kanboard\Model\TaskDuplicationModel;
use Kanboard\Model\TaskModel;
use Kanboard\Model\ProjectGroupRoleModel;
use Kanboard\Plugin\Group_assign\Model\MultiselectMemberModel;
use Kanboard\Plugin\Group_assign\Model\MultiselectModel;
use Kanboard\Model\ProjectPermissionModel;
use Kanboard\Model\TaskLinkModel;

/**
 * Task Project Duplication
 *
 * @package  Kanboard\Plugins\Group_assign
 * @author   Craig Crosby
 */
class TaskProjectDuplicationModel extends TaskDuplicationModel
{
    /**
     * Duplicate a task to another project
     *
     * @access public
     * @param  integer    $task_id
     * @param  integer    $project_id
     * @param  integer    $swimlane_id
     * @param  integer    $column_id
     * @param  integer    $category_id
     * @param  integer    $owner_id
     * @return boolean|integer
     */
    public function duplicateToProject($task_id, $project_id, $swimlane_id = null, $column_id = null, $category_id = null, $owner_id = null, $owner_gp = 0, $owner_ms = 0)
    {
        $values = $this->prepare($task_id, $project_id, $swimlane_id, $column_id, $category_id, $owner_id);

        $this->checkDestinationProjectValues($values);
        $new_task_id = $this->save($task_id, $values);
        if ($new_task_id !== false) {
            // Check if the group is allowed for the destination project
            $group_id = $this->db->table(TaskModel::TABLE)->eq('id', $task_id)->findOneColumn('owner_gp');
                    if ($group_id > 0) {
                        $group_in_project = $this->db
                            ->table(ProjectGroupRoleModel::TABLE)
                            ->eq('project_id', $values['project_id'])
                            ->eq('group_id', $group_id)
                            ->exists();
                        if ($group_in_project) { $this->db->table(TaskModel::TABLE)->eq('id', $new_task_id)->update(['owner_gp' => $group_id]); }
                    }
        
            // Check if the other assignees are allowed for the destination project
            $ms_id = $this->db->table(TaskModel::TABLE)->eq('id', $task_id)->findOneColumn('owner_ms');
                    if ($ms_id > 0) {
                        $users_in_ms = $this->multiselectMemberModel->getMembers($ms_id);
                        $new_ms_id = $this->multiselectModel->create();
                        $this->db->table(TaskModel::TABLE)->eq('id', $new_task_id)->update(['owner_ms' => $new_ms_id]);
                        foreach ($users_in_ms as $user) {
                            if ($this->projectPermissionModel->isAssignable($values['project_id'], $user['id'])) { 
                                $this->multiselectMemberModel->addUser($new_ms_id, $user['id']); 
                            }
                        }
                    }
            
            $this->tagDuplicationModel->duplicateTaskTagsToAnotherProject($task_id, $new_task_id, $project_id);
            $this->taskLinkModel->create($new_task_id, $task_id, 4);
        }

        return $new_task_id;
    }

    /**
     * Prepare values before duplication
     *
     * @access protected
     * @param  integer $task_id
     * @param  integer $project_id
     * @param  integer $swimlane_id
     * @param  integer $column_id
     * @param  integer $category_id
     * @param  integer $owner_id
     * @return array
     */
    protected function prepare($task_id, $project_id, $swimlane_id, $column_id, $category_id, $owner_id)
    {
        $values = $this->copyFields($task_id);
        $values['project_id'] = $project_id;
        $values['column_id'] = $column_id !== null ? $column_id : $values['column_id'];
        $values['swimlane_id'] = $swimlane_id !== null ? $swimlane_id : $values['swimlane_id'];
        $values['category_id'] = $category_id !== null ? $category_id : $values['category_id'];
        $values['owner_id'] = $owner_id !== null ? $owner_id : $values['owner_id'];

        return $values;
    }
}