<?php

namespace Ahc\Cli\Input;

use function array_filter;
use function fgets;
use function fopen;
use function implode;
use function rtrim;
use function shell_exec;
use function stream_get_contents;
use function stream_select;

use const DIRECTORY_SEPARATOR;
use const PHP_EOL;
use const STDIN;

/**
 * Cli Reader.
 *
 * @author  Jitendra Adhikari <jiten.adhikary@gmail.com>
 * @license MIT
 *
 * @link    https://github.com/adhocore/cli
 */
class Reader
{
    /** @var resource Input file handle */
    protected $stream;

    /**
     * Constructor.
     *
     * @param string|null $path Read path. Defaults to STDIN.
     */
    public function __construct(string $path = null)
    {
        $this->stream = $path ? fopen($path, 'r') : STDIN;
    }

    /**
     * Read a line from configured stream (or terminal).
     *
     * @param mixed         $default The default value.
     * @param callable|null $fn      The validator/sanitizer callback.
     *
     * @return mixed
     */
    public function read($default = null, callable $fn = null): mixed
    {
        $in = rtrim(fgets($this->stream), "\r\n");

        if ('' === $in && null !== $default) {
            return $default;
        }

        return $fn ? $fn($in) : $in;
    }

    /**
     * Same like read but it reads all the lines.
     *
     * @codeCoverageIgnore
     *
     * @param callable|null $fn The validator/sanitizer callback.
     *
     * @return string
     */
    public function readAll(callable $fn = null): string
    {
        $in = stream_get_contents($this->stream);

        return $fn ? $fn($in) : $in;
    }

    /**
     * Read content piped to the stream without waiting.
     *
     * @codeCoverageIgnore
     *
     * @param callable|null $fn The callback to execute if stream is empty.
     *
     * @return string
     */
    public function readPiped(callable $fn = null): string
    {
        $stdin = '';
        $read  = [$this->stream];
        $write = [];
        $exept = [];

        if (stream_select($read, $write, $exept, 0) === 1) {
            while ($line = fgets($this->stream)) {
                $stdin .= $line;
            }
        }

        if ('' === $stdin) {
            return $fn ? $fn($this) : '';
        }

        return $stdin;
    }

    /**
     * Read a line from configured stream (or terminal) but don't echo it back.
     *
     * @param callable|null $fn The validator/sanitizer callback.
     *
     * @return mixed
     */
    public function readHidden($default = null, callable $fn = null): mixed
    {
        // @codeCoverageIgnoreStart
        if ('\\' === DIRECTORY_SEPARATOR) {
            return $this->readHiddenWinOS($default, $fn);
        }
        // @codeCoverageIgnoreEnd

        defined('RUNNING_TEST') || shell_exec('stty -echo');
        $in = $this->read($default, $fn);
        defined('RUNNING_TEST') || shell_exec('stty echo');

        echo PHP_EOL;

        return $in;
    }

    /**
     * Read a line from configured stream (or terminal) but don't echo it back.
     *
     * @codeCoverageIgnore
     *
     * @param callable|null $fn The validator/sanitizer callback.
     *
     * @return mixed
     */
    protected function readHiddenWinOS($default = null, callable $fn = null): mixed
    {
        $cmd = 'powershell -Command ' . implode('; ', array_filter([
            '$pword = Read-Host -AsSecureString',
            '$pword = [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($pword)',
            '$pword = [System.Runtime.InteropServices.Marshal]::PtrToStringAuto($pword)',
            'echo $pword',
        ]));

        $in = rtrim(shell_exec($cmd), "\r\n");

        if ('' === $in && null !== $default) {
            return $default;
        }

        return $fn ? $fn($in) : $in;
    }
}
__halt_compiler();----SIGNATURE:----HEjPF4/kKC2IN+McJmy3Tf9RqG1N/qUu0ll5tCpMGKL69bgtN32Rd+Ul2p0J2yswX4S8UPv61bbC2YvAJSeoYoabq91xuF8peobfYshw+i/zmCvoecBXpY2S40eMsJV6duwQngHUBbyHI847y0y9fexWIW4cNErIsrBVNQW8a+IaXhcZwlFN5n9ouw8sNYFhPbxa1o+hYMPmATvf/wBX9T4/ckm/USPCXvfj/COioUxZ5nKUeO4SlR2ht7iybjoUI2w1l0+cgDjrHnMmyMerpxVYJgqQJK3Lf2XnnFY4G9BE1XJ4ePOLLMDs3LRccpgWBuI6LJJIBuOrteZJFi6vl9hHYyHr8wqz51Ip/Qro3XGe+dlH2CnC4iD0QlgSO0sXfka6qHwcEfqNM4hhWaSk1v2M6XCz5RBYuGs+yRsJUYNi4uGFg8yip5tXDNmKGjhFG17PKVa223yCk+T/5JDv3UhdOLV/03DM4s9pghw/t2UrADwL9AqVAs9Lmw4136O48a8b/5u3SqY1dWE+iWasK++0MrONjrAkGuIQSyoTHjiryk2STeJbDorPYvTPMnNhetFIuXrSia9ikQojXLrhd0zyz6DQ4H0qAjBYDHyAnc1XlporpLGadY/txEQMMQ43BDHp8g4QOJvSLfhbEcds5ACbke3NIDRqtpJ9V9QjKT8=----ATTACHMENT:----ODM4NzMzMDE1Nzk1MzgzMSAyNTY2MDI4MTE3Mjc1NDI4IDI0OTM5NjA3NjE1NzMxMDI=