<?php

/** DomFramework
  * @package domframework
  * @author Dominique Fournier <dominique@fournier38.fr>
  * @license BSD
  */

namespace Domframework;

/** The series objects */
class GraphSeries
{
    /** The series stored */
    private $series = array();

    /** Return the serie object choosed. If doesn't exists, it is created before
      * be returned
      * @param string $name The name of the serie to create
      */
    public function serie($name)
    {
        if (is_integer($name)) {
            $name = dgettext("domframework", "Serie") . " $name";
        }
        if (! is_string($name)) {
            throw new \Exception(
                dgettext(
                    "domframework",
                    "Can't get a serie if the name is not a string"
                ),
                406
            );
        }
        if (! array_key_exists($name, $this->series)) {
            $this->series[$name] = new GraphSerie($name);
        }
        return $this->series[$name];
    }

    /** Get the list of the defined series
      */
    public function getList()
    {
        $series = [];
        foreach ($this->series as $name => $serie) {
            if ($serie->hide() === true) {
                continue;
            }
            $series[] = $name;
        }
        return $series;
    }

    /** Remove an existing serie
      * @param string $name The name of the serie to remove
      */
    public function remove($name)
    {
        if (! is_string($name)) {
            throw new \Exception(
                dgettext(
                    "domframework",
                    "Can't remove a serie if the name is not a string"
                ),
                406
            );
        }
        if (array_key_exists($name, $this->series)) {
            unset($this->series[$name]);
        }
    }
}