<?php declare(strict_types=1);

namespace Orbit;

use Monolog\Logger;
use Monolog\Formatter\LineFormatter;
use Monolog\Handler\StreamHandler;

/**
 * Console
 *
 * @package Orbit
 */
class Console extends \Qi_Console_Client
{
    public static $under_test = false;

    /**
     * Execute the console command
     *
     * @param Logger $logger
     * @return int Status code
     */
    public function execute(Logger $logger = null): int
    {
        if ($this->_args->get('no-color')) {
            $this->_terminal->setIsatty(false);
        }

        if ($this->_args->version) {
            $this->showVersion();
            return 0;
        }

        if ($this->_args->help) {
            $this->showHelp();
            return 0;
        }

        $config = $this->makeConfig();
        if (!$logger) {
            $logger = $this->makeLogger($config, $this->_args->quiet);
        }

        if (!$this->_args->quiet) {
            print "Orbit // Gemini server software\n";
        }

        $cert = new Cert($config, $logger);

        $server = new Server($config, $cert, $logger);

        if (!self::$under_test) {
            $server->listen();
        }

        return 0;
    }

    /**
     * Make Config object
     *
     * @return Config
     */
    public function makeConfig(): Config
    {
        $config = new Config($this->_args->dev);

        if ($this->_args->config) {
            $config->readFromIniFile($this->_args->config);
        }

        if ($this->_args->host || $this->_args->host == "0") {
            $config->host = $this->_args->host;
        }

        if ($this->_args->port || $this->_args->port == "0") {
            $config->port = $this->_args->port;
        }

        if ($this->_args->hostname) {
            $config->hostname = $this->_args->hostname;
        }

        if ($this->_args->log) {
            $config->log_file = $this->_args->log;
        }

        if ($this->_args->verbose) {
            $config->log_level = Logger::DEBUG;
        }

        if ($this->_args->get("root-dir")) {
            $config->root_dir = $this->_args->get("root-dir");
        }

        if ($this->_args->get("tls-cert")) {
            $config->tls_certfile = $this->_args->get("tls-cert");
        }

        if ($this->_args->get("tls-key")) {
            $config->tls_keyfile = $this->_args->get("tls-key");
        }

        if ($this->_args->get("tls-passphrase")) {
            $config->key_passphrase = $this->_args->get("tls-passphrase");
        }

        return $config;
    }

    /**
     * Make Logger object
     *
     * @param Config $config
     * @param bool $is_quiet
     * @return Logger
     */
    public function makeLogger(Config $config, $is_quiet = false): Logger
    {
        $logger = new Logger('orbit');

        $level = Logger::INFO;
        if ($config->log_level) {
            $level = $config->log_level;
        }

        $log_stream = new StreamHandler($config->log_file, $level);
        $log_stream->setFormatter($this->makeLogFormatter());
        $logger->pushHandler($log_stream);

        if (!$is_quiet) {
            $std_stream = new StreamHandler('php://stdout', $level);
            $std_stream->setFormatter($this->makeLogFormatter(true));
            $logger->pushHandler($std_stream);
        }

        return $logger;
    }

    /**
     * Make a LineFormatter object
     *
     * @return LineFormatter
     */
    private function makeLogFormatter($is_tty = false): LineFormatter
    {
        $pid = getmypid();

        if ($is_tty) {
            $output = "{2}[%datetime%]{} {3}$pid %channel%.%level_name%:{} %message% %context%\n";
            $output = str_replace("{2}", $this->_terminal->do_setaf(2), $output);
            $output = str_replace("{3}", $this->_terminal->do_setaf(3), $output);
            $output = str_replace("{}", $this->_terminal->do_op(), $output);
        } else {
            $output = "[%datetime%] $pid %channel%.%level_name%: %message% %context%\n";
        }

        return new LineFormatter($output, 'Y-m-d\TH:i:s');
    }

    /**
     * Print the version of orbit server
     *
     * @return void
     */
    public function showVersion(): void
    {
        print "Orbit " . Server::$version . "\n";
    }

    /**
     * Print the help message
     *
     * @return void
     */
    public function showHelp(): void
    {
        $this->showVersion();

        $out = $this->_terminal->do_op()
            . "Usage: orbit [options]\n"
            . "\n"
            . $this->_terminal->do_setaf(3)
            . "Options:\n"
            . $this->_terminal->do_op();

        foreach ($this->_args->getHelp() as $key => $value) {
            if (strpos($key, "|")) {
                $parts = explode("|", $key);
                $left = sprintf("-%s, --%s", $parts[0], $parts[1]);
            } else {
                $left = sprintf("    --%s", $key);
            }

            if ($left[-1] == ":") {
                $left = substr($left, 0, -1) . " <arg>";
            }

            $out .= sprintf(
                "  %s%s %s%s\n",
                $this->_terminal->do_setaf(2),
                str_pad($left, 20),
                $this->_terminal->do_op(),
                $value
            );
        }

        print $out;
    }
}