<?php
declare(strict_types=1);
session_start();

if (empty($_SESSION['miter'])) {
	header('Location: ../../settings.php');
	exit;
}

// delete existing zip
$usr_dir = '../../user/';
$zip_past = glob($usr_dir . '*.zip');
if (is_array($zip_past)) {
	foreach ($zip_past as $zip) {
		if (file_exists($zip) && is_file($zip)) {
			unlink($zip);
		}
	}
}

include 'otc.php';

// create zip
$zip_dir = '../../user/';
$zip_file = 'miter_backup_' . $o_file_date . '.zip';
$zip_gather = $zip_dir . $zip_file;
$zip_new = new ZipArchive;

if ($zip_new->open($zip_gather, ZipArchive::CREATE | ZipArchive::OVERWRITE) === true) {

	// miters (txt)
	$dat_dir = '../../miters/';
	$dat_array = glob($dat_dir . '*.txt');
	if (is_array($dat_array)) {
		foreach ($dat_array as $user) {
			if (file_exists($user) && is_file($user)) {
				$zip_new->addFile($user, 'miters/' . basename($user));
			}
		}
	}

	// tenons (txt)
	$dat_dir = '../../tenons/';
	$dat_array = glob($dat_dir . '*.txt');
	if (is_array($dat_array)) {
		foreach ($dat_array as $tenon) {
			if (file_exists($tenon) && is_file($tenon)) {
				$zip_new->addFile($tenon, 'tenons/' . basename($tenon));
			}
		}
	}

	// ussr (txt,xml)
	$dat_dir = '../../user/';
	$dat_array = glob($dat_dir . '*.{txt,xml}', GLOB_BRACE);
	if (is_array($dat_array)) {
		foreach ($dat_array as $user) {
			if (file_exists($user) && is_file($user)) {
				$zip_new->addFile($user, 'user/' . basename($user));
			}
		}
	}

	// panels (txt)
	$dat_dir = '../../panels/';
	$dat_array = glob($dat_dir . '*.txt');
	if (is_array($dat_array)) {
		foreach ($dat_array as $user) {
			if (file_exists($user) && is_file($user)) {
				$zip_new->addFile($user, 'panels/' . basename($user));
			}
		}
	}

	// tenon_inserts.txt
	$dat_dir = '../tenon/';
	$dat_array = glob($dat_dir . 'tenon_inserts.txt', GLOB_BRACE);
	if (is_array($dat_array)) {
		foreach ($dat_array as $user) {
			if (file_exists($user) && is_file($user)) {
				$zip_new->addFile($user, 'tenon/' . basename($user));
			}
		}
	}

	$zip_new->close();
}

if (file_exists($zip_gather) && is_file($zip_gather)) {
	header('Content-Type: application/zip');
	header('Content-disposition: attachment; filename=' . $zip_file);
	header('Content-Length: ' . filesize($zip_gather));
	readfile($zip_gather);
	exit;
}