<?php

namespace DynamicOOOS\Mpdf\Barcode;

/**
 * Standard 2 of 5 barcodes.
 * Used in airline ticket marking, photofinishing
 * Contains digits (0 to 9) and encodes the data only in the width of bars.
 */
class S25 extends \DynamicOOOS\Mpdf\Barcode\AbstractBarcode implements \DynamicOOOS\Mpdf\Barcode\BarcodeInterface
{
    /**
     * @param string $code
     * @param bool $checksum
     */
    public function __construct($code, $checksum = \false, $quiet_zone_left = null, $quiet_zone_right = null)
    {
        $this->init($code, $checksum);
        $this->data['nom-X'] = 0.381;
        // Nominal value for X-dim (bar width) in mm (2 X min. spec.)
        $this->data['nom-H'] = 10;
        // Nominal value for Height of Full bar in mm (non-spec.)
        $this->data['lightmL'] = $quiet_zone_left !== null ? $quiet_zone_left : 10;
        // LEFT light margin =  x X-dim (spec.)
        $this->data['lightmR'] = $quiet_zone_right !== null ? $quiet_zone_right : 10;
        // RIGHT light margin =  x X-dim (spec.)
        $this->data['lightTB'] = 0;
        // TOP/BOTTOM light margin =  x X-dim (non-spec.)
    }
    /**
     * @param string $code
     * @param bool $checksum
     */
    private function init($code, $checksum)
    {
        $chr = ['0' => '10101110111010', '1' => '11101010101110', '2' => '10111010101110', '3' => '11101110101010', '4' => '10101110101110', '5' => '11101011101010', '6' => '10111011101010', '7' => '10101011101110', '8' => '10101110111010', '9' => '10111010111010'];
        $checkdigit = '';
        if ($checksum) {
            // add checksum
            $checkdigit = $this->checksum($code);
            $code .= $checkdigit;
        }
        if (\strlen($code) % 2 != 0) {
            // add leading zero if code-length is odd
            $code = '0' . $code;
        }
        $seq = '11011010';
        $clen = \strlen($code);
        for ($i = 0; $i < $clen; ++$i) {
            $digit = $code[$i];
            if (!isset($chr[$digit])) {
                // invalid character
                throw new \DynamicOOOS\Mpdf\Barcode\BarcodeException(\sprintf('Invalid character "%s" in S25 barcode value "%s"', $digit, $code));
            }
            $seq .= $chr[$digit];
        }
        $seq .= '1101011';
        $bararray = ['code' => $code, 'maxw' => 0, 'maxh' => 1, 'bcode' => []];
        $bararray['checkdigit'] = $checkdigit;
        $this->data = $this->binseqToArray($seq, $bararray);
    }
    /**
     * Checksum for standard 2 of 5 barcodes.
     *
     * @param string $code
     *
     * @return int
     */
    private function checksum($code)
    {
        $len = \strlen($code);
        $sum = 0;
        for ($i = 0; $i < $len; $i += 2) {
            $sum += $code[$i];
        }
        $sum *= 3;
        for ($i = 1; $i < $len; $i += 2) {
            $sum += $code[$i];
        }
        $r = $sum % 10;
        if ($r > 0) {
            $r = 10 - $r;
        }
        return $r;
    }
    /**
     * @inheritdoc
     */
    public function getType()
    {
        return 'S25';
    }
}
