<?php

namespace PhpOffice\PhpSpreadsheet\RichText;

use PhpOffice\PhpSpreadsheet\Cell\Cell;
use PhpOffice\PhpSpreadsheet\Cell\DataType;
use PhpOffice\PhpSpreadsheet\IComparable;

class RichText implements IComparable
{
    /**
     * Rich text elements.
     *
     * @var ITextElement[]
     */
    private $richTextElements;

    /**
     * Create a new RichText instance.

<      *
<      * @param Cell $pCell


     */

<     public function __construct(?Cell $pCell = null)



>     public function __construct(?Cell $cell = null)


    {
        // Initialise variables
        $this->richTextElements = [];

        // Rich-Text string attached to cell?

<         if ($pCell !== null) {



>         if ($cell !== null) {


            // Add cell text and style

<             if ($pCell->getValue() != '') {
<                 $objRun = new Run($pCell->getValue());
<                 $objRun->setFont(clone $pCell->getWorksheet()->getStyle($pCell->getCoordinate())->getFont());



>             if ($cell->getValue() != '') {
>                 $objRun = new Run($cell->getValue());
>                 $objRun->setFont(clone $cell->getWorksheet()->getStyle($cell->getCoordinate())->getFont());


                $this->addText($objRun);
            }

            // Set parent value

<             $pCell->setValueExplicit($this, DataType::TYPE_STRING);



>             $cell->setValueExplicit($this, DataType::TYPE_STRING);


        }
    }

    /**
     * Add text.
     *

<      * @param ITextElement $pText Rich text element



>      * @param ITextElement $text Rich text element


     *
     * @return $this
     */

<     public function addText(ITextElement $pText)



>     public function addText(ITextElement $text)


    {

<         $this->richTextElements[] = $pText;



>         $this->richTextElements[] = $text;



        return $this;
    }

    /**
     * Create text.
     *

<      * @param string $pText Text



>      * @param string $text Text


     *
     * @return TextElement
     */

<     public function createText($pText)



>     public function createText($text)


    {

<         $objText = new TextElement($pText);



>         $objText = new TextElement($text);


        $this->addText($objText);

        return $objText;
    }

    /**
     * Create text run.
     *

<      * @param string $pText Text



>      * @param string $text Text


     *
     * @return Run
     */

<     public function createTextRun($pText)



>     public function createTextRun($text)


    {

<         $objText = new Run($pText);



>         $objText = new Run($text);


        $this->addText($objText);

        return $objText;
    }

    /**
     * Get plain text.
     *
     * @return string
     */
    public function getPlainText()
    {
        // Return value
        $returnValue = '';

        // Loop through all ITextElements
        foreach ($this->richTextElements as $text) {
            $returnValue .= $text->getText();
        }

        return $returnValue;
    }

    /**
     * Convert to string.
     *
     * @return string
     */
    public function __toString()
    {
        return $this->getPlainText();
    }

    /**
     * Get Rich Text elements.
     *
     * @return ITextElement[]
     */
    public function getRichTextElements()
    {
        return $this->richTextElements;
    }

    /**
     * Set Rich Text elements.
     *
     * @param ITextElement[] $textElements Array of elements
     *
     * @return $this
     */
    public function setRichTextElements(array $textElements)
    {
        $this->richTextElements = $textElements;

        return $this;
    }

    /**
     * Get hash code.
     *
     * @return string Hash code
     */
    public function getHashCode()
    {
        $hashElements = '';
        foreach ($this->richTextElements as $element) {
            $hashElements .= $element->getHashCode();
        }

        return md5(
            $hashElements .
            __CLASS__
        );
    }

    /**
     * Implement PHP __clone to create a deep clone, not just a shallow copy.
     */
    public function __clone()
    {
        $vars = get_object_vars($this);
        foreach ($vars as $key => $value) {
            if (is_object($value)) {
                $this->$key = clone $value;
            } else {
                $this->$key = $value;
            }
        }
    }
}