<?php

declare(strict_types=1);

namespace SPC\command;

use SPC\exception\ValidationException;
use SPC\util\ConfigValidator;
use Symfony\Component\Console\Attribute\AsCommand;
use Symfony\Component\Process\Process;

#[AsCommand('craft', 'Build static-php from craft.yml')]
class CraftCommand extends BaseCommand
{
    public function configure(): void
    {
        $this->addArgument('craft', null, 'Path to craft.yml file', WORKING_DIR . '/craft.yml');
    }

    public function handle(): int
    {
        $craft_file = $this->getArgument('craft');
        // Check if the craft.yml file exists
        if (!file_exists($craft_file)) {
            $this->output->writeln('<error>craft.yml not found, please create one!</error>');
            return static::FAILURE;
        }

        // Check if the craft.yml file is valid
        try {
            $craft = ConfigValidator::validateAndParseCraftFile($craft_file, $this);
            if ($craft['debug']) {
                $this->input->setOption('debug', true);
            }
        } catch (ValidationException $e) {
            $this->output->writeln('<error>craft.yml parse error: ' . $e->getMessage() . '</error>');
            return static::FAILURE;
        }

        // Craft!!!
        $this->output->writeln('<info>Crafting...</info>');

        // apply env
        if (isset($craft['extra-env'])) {
            $env = $craft['extra-env'];
            foreach ($env as $key => $val) {
                f_putenv("{$key}={$val}");
            }
        }

        $extensions = implode(',', $craft['extensions']);
        $libs = implode(',', $craft['libs']);

        // init log
        if (file_exists(WORKING_DIR . '/craft.log')) {
            unlink(WORKING_DIR . '/craft.log');
        }

        // craft doctor
        if ($craft['craft-options']['doctor']) {
            $retcode = $this->runCommand('doctor', '--auto-fix');
            if ($retcode !== 0) {
                $this->output->writeln('<error>craft doctor failed</error>');
                $this->log("craft doctor failed with code: {$retcode}", true);
                return static::FAILURE;
            }
        }
        // craft download
        if ($craft['craft-options']['download']) {
            $args = ["--for-extensions={$extensions}"];
            if ($craft['libs'] !== []) {
                $args[] = "--for-libs={$libs}";
            }
            if (isset($craft['php-version'])) {
                $args[] = '--with-php=' . $craft['php-version'];
                if (!array_key_exists('ignore-cache-sources', $craft['download-options']) || $craft['download-options']['ignore-cache-sources'] === false) {
                    $craft['download-options']['ignore-cache-sources'] = 'php-src';
                } elseif ($craft['download-options']['ignore-cache-sources'] !== null) {
                    $craft['download-options']['ignore-cache-sources'] .= ',php-src';
                }
            }
            $download_options = $craft['download-options'];
            foreach ($download_options as $option => $val) {
                if (is_bool($val) && $val || is_null($val)) {
                    $args[] = "--{$option}";
                } elseif (is_string($val)) {
                    $args[] = "--{$option}={$val}";
                } elseif (is_array($val)) {
                    foreach ($val as $v) {
                        if (is_string($v)) {
                            $args[] = "--{$option}={$v}";
                        }
                    }
                }
            }
            $retcode = $this->runCommand('download', ...$args);
            if ($retcode !== 0) {
                $this->output->writeln('<error>craft download failed</error>');
                $this->log('craft download failed with code: ' . $retcode, true);
                return static::FAILURE;
            }
        }

        // craft build
        if ($craft['craft-options']['build']) {
            $args = [$extensions, "--with-libs={$libs}", ...array_map(fn ($x) => "--build-{$x}", $craft['sapi'])];
            $retcode = $this->runCommand('build', ...$args);
            if ($retcode !== 0) {
                $this->output->writeln('<error>craft build failed</error>');
                $this->log('craft build failed with code: ' . $retcode, true);
                return static::FAILURE;
            }
        }

        return 0;
    }

    public function processLogCallback($type, $buffer): void
    {
        if ($type === Process::ERR) {
            fwrite(STDERR, $buffer);
        } else {
            fwrite(STDOUT, $buffer);
            $this->log($buffer);
        }
    }

    private function log(string $log, bool $master_log = false): void
    {
        if ($master_log) {
            $log = "\n[static-php-cli]> " . $log . "\n\n";
        } else {
            $log = preg_replace('/\x1b\[[0-9;]*m/', '', $log);
        }
        file_put_contents('craft.log', $log, FILE_APPEND);
    }

    private function runCommand(string $cmd, ...$args): int
    {
        global $argv;
        if ($this->getOption('debug')) {
            array_unshift($args, '--debug');
        }
        $prefix = PHP_SAPI === 'cli' ? [PHP_BINARY, $argv[0]] : [$argv[0]];

        $process = new Process([...$prefix, $cmd, '--no-motd', ...$args], timeout: null);
        $this->log("Running: {$process->getCommandLine()}", true);

        if (PHP_OS_FAMILY === 'Windows') {
            sapi_windows_set_ctrl_handler(function () use ($process) {
                if ($process->isRunning()) {
                    $process->signal(-1073741510);
                }
            });
        } elseif (extension_loaded('pcntl')) {
            pcntl_signal(SIGINT, function () use ($process) {
                /* @noinspection PhpComposerExtensionStubsInspection */
                $process->signal(SIGINT);
            });
        } else {
            logger()->debug('You have not enabled `pcntl` extension, cannot prevent download file corruption when Ctrl+C');
        }
        // $process->setTty(true);
        $process->run([$this, 'processLogCallback']);
        return $process->getExitCode();
    }
}