<?php

namespace EventEspresso\core\services\progress_steps;

use EventEspresso\core\exceptions\InvalidDataTypeException;

/**
 * Class ProgressStep
 * class primarily intended for use with \EventEspresso\core\services\progress_steps\ProgressStepManager
 * that defines the details of a particular form step and it's current state within a sequence of form steps
 *
 * @package       Event Espresso
 * @subpackage    core
 * @author        Brent Christensen
 * @since         4.9.0
 */
class ProgressStep implements ProgressStepInterface
{


    /**
     * @var boolean $current
     */
    private $current = false;


    /**
     * @var boolean $completed
     */
    private $completed = false;


    /**
     * @var string $html_class
     */
    private $html_class;

    /**
     * @var string $id
     */
    private $id = '';

    /**
     * @var int $order
     */
    private $order = 0;

    /**
     * @var string $text
     */
    private $text = '';


    /**
     * ProgressStep constructor
     *
     * @param int    $order
     * @param string $id
     * @param string $html_class
     * @param string $text
     * @throws InvalidDataTypeException
     */
    public function __construct($order, $id, $html_class, $text)
    {
        $this->setOrder($order);
        $this->setId($id);
        $this->setHtmlClass($html_class);
        $this->setText($text);
    }


    /**
     * @return boolean
     */
    public function isCurrent()
    {
        return $this->current;
    }


    /**
     * @param boolean $current
     */
    public function setIsCurrent($current = true)
    {
        $this->current = filter_var($current, FILTER_VALIDATE_BOOLEAN);
    }


    /**
     * @return boolean
     */
    public function isCompleted()
    {
        return $this->completed;
    }


    /**
     * @param boolean $completed
     */
    public function setIsCompleted($completed = true)
    {
        $this->completed = filter_var($completed, FILTER_VALIDATE_BOOLEAN);
    }


    /**
     * @return string
     */
    public function id()
    {
        return $this->id;
    }


    /**
     * @access protected
     * @param string $id
     * @throws InvalidDataTypeException
     */
    protected function setId($id = '')
    {
        if (! is_string($id)) {
            throw new InvalidDataTypeException('$id', $id, 'string');
        }
        $this->id = $id;
    }


    /**
     * @return int
     */
    public function order()
    {
        return $this->order;
    }


    /**
     * @access protected
     * @param int $order
     * @throws InvalidDataTypeException
     */
    protected function setOrder($order = 0)
    {
        if (! is_int($order)) {
            throw new InvalidDataTypeException('$order', $order, 'integer');
        }
        $this->order = $order;
    }


    /**
     * @return string
     */
    public function htmlClass()
    {
        $html_class = $this->html_class;
        if ($this->isCurrent()) {
            $html_class .= ' progress-step-active';
        } elseif ($this->isCompleted()) {
            $html_class .= ' progress-step-completed';
        }
        return $html_class;
    }


    /**
     * @access protected
     * @param string $html_class
     * @throws InvalidDataTypeException
     */
    protected function setHtmlClass($html_class)
    {
        if (! is_string($html_class)) {
            throw new InvalidDataTypeException('$html_class', $html_class, 'string');
        }
        if (strpos($html_class, 'progress-step-') === false) {
            $html_class = 'progress-step-' . $html_class;
        }
        $this->html_class = $html_class;
    }


    /**
     * @return string
     */
    public function text()
    {
        return $this->text;
    }


    /**
     * @access protected
     * @param string $text
     * @throws InvalidDataTypeException
     */
    protected function setText($text)
    {
        if (! is_string($text)) {
            throw new InvalidDataTypeException('$text', $text, 'string');
        }
        $this->text = $text;
    }
}
