<?php

namespace PhpOffice\PhpSpreadsheet\Writer\Xls;

use PhpOffice\PhpSpreadsheet\Shared\StringHelper;

class Font
{
    /**
     * Color index.
     *
     * @var int
     */
    private $colorIndex;

    /**
     * Font.
     *
     * @var \PhpOffice\PhpSpreadsheet\Style\Font
     */
    private $font;

    /**
     * Constructor.
     */
    public function __construct(\PhpOffice\PhpSpreadsheet\Style\Font $font)
    {
        $this->colorIndex = 0x7FFF;
        $this->font = $font;
    }

    /**
     * Set the color index.
     *
     * @param int $colorIndex
     */
    public function setColorIndex($colorIndex): void
    {
        $this->colorIndex = $colorIndex;
    }

    /** @var int */
    private static $notImplemented = 0;

    /**
     * Get font record data.
     *
     * @return string
     */
    public function writeFont()
    {
        $font_outline = self::$notImplemented;
        $font_shadow = self::$notImplemented;

        $icv = $this->colorIndex; // Index to color palette
        if ($this->font->getSuperscript()) {
            $sss = 1;
        } elseif ($this->font->getSubscript()) {
            $sss = 2;
        } else {
            $sss = 0;
        }
        $bFamily = 0; // Font family
        $bCharSet = \PhpOffice\PhpSpreadsheet\Shared\Font::getCharsetFromFontName((string) $this->font->getName()); // Character set

        $record = 0x31; // Record identifier
        $reserved = 0x00; // Reserved
        $grbit = 0x00; // Font attributes
        if ($this->font->getItalic()) {
            $grbit |= 0x02;
        }
        if ($this->font->getStrikethrough()) {
            $grbit |= 0x08;
        }
        if ($font_outline) {
            $grbit |= 0x10;
        }
        if ($font_shadow) {
            $grbit |= 0x20;
        }

        $data = pack(
            'vvvvvCCCC',
            // Fontsize (in twips)
            $this->font->getSize() * 20,
            $grbit,
            // Colour
            $icv,
            // Font weight
            self::mapBold($this->font->getBold()),
            // Superscript/Subscript
            $sss,
            self::mapUnderline((string) $this->font->getUnderline()),
            $bFamily,
            $bCharSet,
            $reserved
        );
        $data .= StringHelper::UTF8toBIFF8UnicodeShort((string) $this->font->getName());

        $length = strlen($data);
        $header = pack('vv', $record, $length);

        return $header . $data;
    }

    /**
     * Map to BIFF5-BIFF8 codes for bold.
     */
    private static function mapBold(?bool $bold): int
    {
        if ($bold === true) {
            return 0x2BC; //  700 = Bold font weight
        }

        return 0x190; //  400 = Normal font weight
    }

    /**
     * Map of BIFF2-BIFF8 codes for underline styles.
     *
     * @var int[]
     */
    private static $mapUnderline = [
        \PhpOffice\PhpSpreadsheet\Style\Font::UNDERLINE_NONE => 0x00,
        \PhpOffice\PhpSpreadsheet\Style\Font::UNDERLINE_SINGLE => 0x01,
        \PhpOffice\PhpSpreadsheet\Style\Font::UNDERLINE_DOUBLE => 0x02,
        \PhpOffice\PhpSpreadsheet\Style\Font::UNDERLINE_SINGLEACCOUNTING => 0x21,
        \PhpOffice\PhpSpreadsheet\Style\Font::UNDERLINE_DOUBLEACCOUNTING => 0x22,
    ];

    /**
     * Map underline.
     *
     * @param string $underline
     *
     * @return int
     */
    private static function mapUnderline($underline)
    {
        if (isset(self::$mapUnderline[$underline])) {
            return self::$mapUnderline[$underline];
        }

        return 0x00;
    }
}

• [D] Style
• [F] BIFFwriter.php
  Delete
• [F] CellDataValidation.php
  Delete
• [F] ConditionalHelper.php
  Delete
• [F] ErrorCode.php
  Delete
• [F] Escher.php
  Delete
• [F] Font.php
  Delete
• [F] Parser.php
  Delete
• [F] Workbook.php
  Delete
• [F] Worksheet.php
  Delete
• [F] Xf.php
  Delete

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<?php
                            
 require_once('vendor/autoload.php');
                            
 $client = new \GuzzleHttp\Client();
                            
 $response = $client->request('POST', $base_url. 'v1/generate-token', [
                            
'headers' => [
                            
  'accept' => 'application/json',
                            
  'content-type' => 'application/json',
                            
 ],
                            
'form_params' => [
                            
  'client_id'     => '$client_id',
                            
  'secret_id'     => 'secret_id',
                            
  'env'           => 'env',
                            
  'merchant_id'   => 'merchant_id',
                            
 ],
                            
                            
]);
                            
echo $response->getBody();
                        
                    
                

                    
                        
**Response: SUCCESS (200 OK)**
                        
{
                        
 "message": {
                        
 "success": [
                        
  "Successfully token is generated"
                        
 ]
                        
},
                        
"data": {
                        
 "token":"eyJpdiI6InpkczhjTjhQdVhUL2lKQ0pSUUx6aUE9P
SIsInZhbHVlIjoiVGVBTVBDTXltbjNZcEIvdEJveGpTSno3TU5NRUtn
VkhCZ1pHTFNCUnZGQ2UxMnYxN202cEE1YVRDTEFsc0ZERExoTjdtL0dTL2x
oU3QzeUJJOExiMUx5T0w1L0llUXhTUkU1cWVLWEdEbEplb0dKNXcwbTNRM0
VxdkUwYzZuNFdtNkhMQ0pRZysyNWkvdzBxSlBoSVBSOGFTekNnR2RXNHVtc
G9lMGZOTmNCcm1hR3c5Sk9KTnB4Y3ltZDl6cm90MThrR21Ca3B1azc3bXRi
Q0J6SW96UVo1elNkU1ZqeE05bTcwWGp1MEUxWlJFdnNWTmpSbnVpeW92b2U
4dXZkUGgyb1VmK0luaGdyaFlsVTZlcVpVRnZlTG1DeFF6Ykk2T2h6Z3Jzbn
IyNHpNdHowSE5JdDR0Y0pZT20zUm1XYW8iLCJtYWMiOiJlY2M4NGE1OGUzYz
kzYzk0YzljNmVmNjE0YWI0ZDIwOGI3NDQ2YWEyY2ZhNzc0NzE4ZmY1ZmYyMz

                        IyZmQzNDY1IiwidGFnIjoiIn0=",
                        
},
                        
"type": "success"
                        
}
                    
                

                    
                        
**Response: ERROR (400 FAILED)**
                        
{
                        
 "message": {
                        
 "error": [
                        
  "Invalid credentials."
                        
 ]
                        
},
                        
"data": null,
                        
"type": "error"
                        
}