Medium\Pcetr\Project.php

<?php

class Project
{
    /** @var null|int */
    protected $id;
    
    /** @var string */
    protected $name;
    
    /** @var TaskCollection */
    protected $taskCollection;
    
    public function __construct($name)
    {
        $this->name             = $name;
        $this->taskCollection   = new TaskCollection([]);
    }
    
    public function getId()
    {
        return $this->id;
    }
    
    public function getName()
    {
        return $this->name;
    }
    
    public function getTaskCollection()
    {
        if (is_null($this->taskCollection)) {
            throw new TasksAreNotAccessibleException;    
        }
        
        return $this->taskCollection;
    }
}