Asobancaria 2001 testing generator

Asobancaria2001Generator.php

<?php

/**
 * This will generate a 2001 Asobancaria file
 */

$name = 'testing.txt';

$nit = '8909002860';
$date = date('Ymd');
/**
 * 013 - BBVA
 * 007 - Bancolombia
 * 001 - Banco Bogota
 * 051 - Davivienda
 * 023 - Banco de Occidente
 * 002 - Banco Popular
 */
$bankCode = '013';
$accountNumber = '00840514521';
$accountType = 1;

// Data source, on batchs
$data = [
    '1' => [
        [
            'reference' => '8040159550',
            'amount' => '3500000',
            'origin' => '31',
            'channel' => '53',
            'operationId' => rand(0, 999999),
            'authorization' => rand(0, 999999),
            'thirdEntity' => '000',
            'branch' => '9999',
            'refundReason' => '',
        ],
        [
            'reference' => '8110120390',
            'amount' => rand(100000, 999999999),
            'origin' => '31',
            'channel' => '53',
            'operationId' => rand(0, 999999),
            'authorization' => rand(0, 999999),
            'thirdEntity' => '000',
            'branch' => '9999',
            'refundReason' => '',
        ],
        [
            'reference' => '8909011724',
            'amount' => rand(100000, 999999999),
            'origin' => '31',
            'channel' => '53',
            'operationId' => rand(0, 999999),
            'authorization' => rand(0, 999999),
            'thirdEntity' => '000',
            'branch' => '9999',
            'refundReason' => '',
        ],
        [
            'reference' => '1040035000',
            'amount' => 15000000,
            'origin' => '31',
            'channel' => '53',
            'operationId' => rand(0, 999999),
            'authorization' => rand(0, 999999),
            'thirdEntity' => '000',
            'branch' => '9999',
            'refundReason' => '',
        ],
        [
            'reference' => '123456789',
            'amount' => 1230000,
            'origin' => '31',
            'channel' => '53',
            'operationId' => rand(0, 999999),
            'authorization' => rand(0, 999999),
            'thirdEntity' => '000',
            'branch' => '9999',
            'refundReason' => '',
        ],
    ]
];

$lineBreak = "\n";

// ------- THIS PART DOES NOT NEED TO BE TOUCHED

$file = fopen(__DIR__ . '/' . $name, 'w');

function parse($text, $length, $filler = ' ', $left = true)
{
    if ($left) {
        return str_pad(substr($text, 0, $length), $length, $filler, STR_PAD_LEFT);
    }
    return str_pad(substr($text, 0, $length), $length, $filler, STR_PAD_RIGHT);
}

function parseAmount($amount, $length)
{
    $amount = intval(round(($amount * 100),0));
    return parse($amount, $length, '0');
}

function write($line, $lenght = 162)
{
    global $file, $lineBreak;
    if ($lenght) {
        $line = str_pad($line, $lenght, ' ', STR_PAD_RIGHT);
    }
    fwrite($file, $line . $lineBreak);
}

// Create the header
$line = '01' . parse($nit, 10) . parse($date, 8) . parse($bankCode, 3) . parse($accountNumber, 17, '0') . date('YmdHi') . '1' . $accountType;
write($line);

// Go through the batches and create them
$batchCount = 1;
$registryCount = 0;
$amountTotal = 0;

foreach ($data as $batch => $subdata) {
    $batchRegisters = 0;
    $batchAmount = 0;
    $line = '05' . parse($batch, 13) . parse($batchCount, 4, '0');
    write($line);
    foreach ($subdata as $row) {
        $registryCount++;

        $line = '06' . parse($row['reference'], 48, '0') . parseAmount($row['amount'], 14) . parse($row['origin'], 2) . parse($row['channel'], 2) . parse($row['operationId'], 6, '0') . parse($row['authorization'], 6, '0') . parse($row['thirdEntity'], 3) . parse($row['branch'], 4) . parse($registryCount, 7, '0') . parse($row['refundReason'], 3);
        write($line);

        $batchAmount += $row['amount'];
        $batchRegisters++;
    }
    $line = '08' . parse($batchRegisters, 9, '0') . parseAmount($batchAmount, 18) . parse($batchCount, 4, '0');
    write($line);

    $amountTotal += $batchAmount;

    $batchCount++;
}

$line = '09' . parse($registryCount, 9, '0') . parseAmount($amountTotal, 18);
write($line);