<?php
/**
 * Entry point
 * 
 * PHP version 8.3
 * 
 * @category Util
 * @package  Neato
 * @author   Robert S. <tips@technowizardbob.com>
 * @license  https://mit-license.org/ MIT License
 * @link     https://git.mysnippetsofcode.com/tts/neatoDeploy
 */
ini_set('display_errors', 1);

error_reporting(E_ALL);

$cwd = getcwd();
if (! str_contains($cwd, "neato")) {
    $cwd = "/opt/neatoDeployments";
}

$pk = file_get_contents($cwd . "/sumfiles.sig");
if ($pk === false) {
    echo "No Signatures for sum file checking!";
    exit(1);
}

if (!isset($argv[1])) {
    echo 'Please give Script to run, example: ./neato_deploy.sh apache' . PHP_EOL;
    echo "Note: deploy_ is added to the beginning of the filename and .php is added to the end!" . PHP_EOL;
    echo "Also, the deployment file must be in the deploy_files path." . PHP_EOL;
    echo "Insecure: you may pass a http web site text file: IE http://mysite.com/apache.txt" . PHP_EOL;
    exit(1);
}

define('CONFIG_FILE', basename($argv[1]));

require "neato_common.php";

/**
 * Tell php stan $os_like is from another file
 * 
 * @phpstan-ignore-next-line Variable $os_like might not be defined 
*/
if ($os_like == 'debian') {
    putenv("DEBIAN_FRONTEND=noninteractive");
}

if (isset($os['id']) && file_exists('OS/neato_' . ucfirst($os['id']) . '.php')) {
    include 'OS/neato_' . ucfirst($os['id']) . '.php';
} else {
    $is_Linux = $os['linux'] ?? true;
    $generic_OS_file = ($is_Linux) ? 'OS/neato_Linux_Generic.php' : 'OS/neato_Windows_Generic.php';
    include $generic_OS_file;
}

/**
 * Clean up the file name, so user has a better time.
 * 
 * @param string $file (passed by Reference) deployment file to be prettier
 * 
 * @return void
 */
function Clean_File_name(string & $file): void
{
    $file = str_replace("deploy_", "", $file);
    $file = str_replace(".php", "", $file);
}

$auto = (in_array('-y', $argv)) ? true : false;
$mark = (in_array('-marksafe', $argv)) ? true : false;
$skipdeploy = (in_array('-skipdeploy', $argv)) ? true : false;
$file = $argv[1];
Clean_File_name($file);

if (isStringFound($argv[1], 'http://') || isStringFound($argv[1], 'https://')) {
    if (isset($argv[2]) && $argv[2] !== "-y" ) {
        $file = $argv[2];
        Clean_File_name($file);
    } else {
        $pos = strrpos($argv[1], '/');
        $file = substr($argv[1], $pos + 1);
        $file = str_replace(".txt", "", $file);
        Clean_File_name($file);
    }
    \utils\curl::save($argv[1], "/deploy_files/deploy_{$file}.php");
}
/**
 * Make SHA sum files
 * 
 * @param mixed $shasum plan hash of file
 * 
 * @return void
 */
function Save_sha($shasum): void
{
    $xor = xorEncrypt($shasum, $GLOBALS['pk']);
    file_put_contents($GLOBALS['cwd'] . '/sums/deploy_' . $GLOBALS['file'].'.sum', $xor);
}
/**
 * Check for dangerous stuff and ask if ok to run
 * bails on dangerous files if not accepted
 * 
 * @return void
 */
function Do_Harm_checker(): void
{
    include 'neato_danger_checker.php';
    if (isFileDangerious($GLOBALS['cwd'] . '/deploy_files/deploy_' . $GLOBALS['file'].'.php') ) {
        if (! $GLOBALS['auto']) {
            $answer = readline("Do you wish to execute this Script, anyways!! ?  ");
            if (strtolower(trim($answer)) === "yes" ) {
                echo "Okay...!" . PHP_EOL;
            } else {
                exit(1);
            }
        }
    }
}

/* Keep as last lines */
if (file_exists($cwd . '/deploy_files/deploy_' . $file.'.php')) {
    $check_for_harm = true;
    $shasum = shaSum($cwd . '/deploy_files/deploy_' . $file.'.php');
    if ($shasum === false) {
        echo "Unable to SHA sum script!"; 
        exit(1); 
    }
    
    if (file_exists($cwd . '/sums/deploy_' . $file.'.sum')) {
        if ($skipdeploy) {
            unlink($cwd . '/sums/deploy_' . $file.'.sum');
        } else {
            $sum = readMyFile($cwd . '/sums/deploy_' . $file.'.sum');
            if ($sum === false) {
                echo "Bad sum file, Aborting...";
                exit(1);
            }
            $xor = xorEncrypt($sum, $pk);
            if ($shasum === $xor) {       
                $check_for_harm = false;
            } else {
                echo "Danger: SUM of Script has been modified!";
                exit(1);
            }
        }
    }
    
    if ($mark) {
        Save_sha($shasum);
    }
    
    if ($skipdeploy) {
        echo "Skipping running of Deploy php file...\r\n";
        exit(0);
    }
    
    if ($check_for_harm) {
        Do_Harm_checker();
    }
    
    include $cwd . '/deploy_files/deploy_' . $file.'.php';
} else {
    echo 'PHP Script deploy_files/deploy_'. $file . '.php does not exist!!' . PHP_EOL;
    exit(1);
}

echo PHP_EOL;