<?php

namespace App\RSpade\Commands\Rsx;

use App\RSpade\Core\Bundle\BundleCompiler;
use App\RSpade\Core\Bundle\Minifier;
use App\RSpade\Core\Manifest\Manifest;
use App\RSpade\Core\Rsx;
use Exception;
use Illuminate\Console\Command;

/**
 * Build all production assets
 *
 * Rebuilds manifest and compiles all bundles for production/debug mode.
 * Must be run before the application can serve pages in production-like modes.
 */
class Prod_Build_Command extends Command
{
    protected $signature = 'rsx:prod:build
                            {--force : Force rebuild even if assets exist}
                            {--skip-laravel-cache : Skip Laravel config/route/view caching}';

    protected $description = 'Build all production assets (manifest, bundles, caches)';

    public function handle(): int
    {
        if (Rsx::is_development()) {
            $this->warn('Warning: Building production assets in development mode.');
            $this->line('Assets will be built but will not be used until you switch modes:');
            $this->line('  php artisan rsx:mode:set debug');
            $this->line('  php artisan rsx:mode:set production');
            $this->newLine();
        }

        $this->info('Building production assets...');
        $this->newLine();

        $start_time = microtime(true);

        // Step 1: Rebuild manifest
        $this->line('[1/3] Building manifest...');
        try {
            // Enable force build mode to allow rebuilding in production-like modes
            Manifest::$_force_build = true;

            // Force a fresh manifest rebuild by clearing and re-initializing
            Manifest::clear();
            Manifest::init();
            $this->line('      Manifest built successfully');
        } catch (Exception $e) {
            $this->error('      Failed to build manifest: ' . $e->getMessage());

            return 1;
        } finally {
            Manifest::$_force_build = false;
        }

        // Step 2: Compile all bundles
        $this->line('[2/3] Compiling bundles...');

        // Force restart minify server to pick up any code changes
        if (Rsx::is_production()) {
            Minifier::force_restart();
        }

        $manifest_data = Manifest::get_all();
        $bundle_classes = [];

        foreach ($manifest_data as $file_info) {
            $class_name = $file_info['class'] ?? null;
            if ($class_name && Manifest::php_is_subclass_of($class_name, 'Rsx_Module_Bundle_Abstract')) {
                $fqcn = $file_info['fqcn'] ?? $class_name;
                $bundle_classes[$fqcn] = $class_name;
            }
        }

        if (empty($bundle_classes)) {
            $this->warn('      No bundles found in manifest');
        } else {
            // Ensure storage directory exists
            $bundle_dir = storage_path('rsx-build/bundles');
            if (!is_dir($bundle_dir)) {
                mkdir($bundle_dir, 0755, true);
            }

            $compiled_count = 0;
            $failed_bundles = [];

            foreach ($bundle_classes as $fqcn => $class_name) {
                $this->line("      Compiling: {$class_name}");

                try {
                    $compiler = new BundleCompiler();
                    $compiled = $compiler->compile($fqcn, ['force_build' => true]);

                    // Get output file info (always vendor/app split)
                    $js_size = 0;
                    $css_size = 0;

                    if (isset($compiled['vendor_js_bundle_path'])) {
                        $js_size += filesize("{$bundle_dir}/{$compiled['vendor_js_bundle_path']}");
                    }
                    if (isset($compiled['app_js_bundle_path'])) {
                        $js_size += filesize("{$bundle_dir}/{$compiled['app_js_bundle_path']}");
                    }
                    if (isset($compiled['vendor_css_bundle_path'])) {
                        $css_size += filesize("{$bundle_dir}/{$compiled['vendor_css_bundle_path']}");
                    }
                    if (isset($compiled['app_css_bundle_path'])) {
                        $css_size += filesize("{$bundle_dir}/{$compiled['app_css_bundle_path']}");
                    }

                    $this->line('        JS: ' . $this->_format_size($js_size) . ', CSS: ' . $this->_format_size($css_size));
                    $compiled_count++;
                } catch (Exception $e) {
                    $this->error("        Failed: {$e->getMessage()}");
                    $failed_bundles[$class_name] = $e->getMessage();
                }
            }

            if (!empty($failed_bundles)) {
                $this->error("      {$compiled_count} compiled, " . count($failed_bundles) . ' failed');

                return 1;
            }

            $this->line("      {$compiled_count} bundles compiled");
        }

        // Step 3: Laravel caches
        if (!$this->option('skip-laravel-cache')) {
            $this->line('[3/3] Building Laravel caches...');

            passthru('php artisan optimize:cache 2>/dev/null', $exit_code);
            if ($exit_code === 0) {
                $this->line('      Laravel caches built');
            }
        } else {
            $this->line('[3/3] Skipping Laravel caches (--skip-laravel-cache)');
        }

        $elapsed = round(microtime(true) - $start_time, 2);

        $this->newLine();
        $this->info("[OK] Production build complete ({$elapsed}s)");

        if (Rsx::is_development()) {
            $this->newLine();
            $this->line('To use these assets, switch to production mode:');
            $this->line('  php artisan rsx:mode:set production');
        }

        return 0;
    }

    private function _format_size(int $bytes): string
    {
        if ($bytes < 1024) {
            return "{$bytes} B";
        }
        if ($bytes < 1048576) {
            return round($bytes / 1024, 1) . ' KB';
        }

        return round($bytes / 1048576, 2) . ' MB';
    }
}