<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;
use Illuminate\Support\Facades\File;
use Illuminate\Support\Facades\Route;

class SystemDebug extends Command
{
    protected $signature = 'netgescon:debug 
                            {--scan : Scansiona tutto il sistema}
                            {--duplicates : Trova solo duplicati}
                            {--routes : Verifica route e view}
                            {--models : Controlla relationship dei model}
                            {--clean : Pulisce duplicati automaticamente}
                            {--report : Genera report completo}';

    protected $description = 'Sistema di debug avanzato NetGescon per gestione duplicati, view, route e model';

    protected $issues = [];
    protected $duplicates = [];
    protected $missingViews = [];
    protected $brokenRelationships = [];

    public function handle()
    {
        $this->info("🔍 NetGescon System Debug v1.0");
        $this->info("=====================================\n");

        if ($this->option('scan') || !$this->hasOptions()) {
            $this->scanAll();
        }

        if ($this->option('duplicates')) {
            $this->findDuplicates();
        }

        if ($this->option('routes')) {
            $this->verifyRoutes();
        }

        if ($this->option('models')) {
            $this->checkModels();
        }

        if ($this->option('clean')) {
            $this->cleanDuplicates();
        }

        if ($this->option('report')) {
            $this->generateReport();
        }

        $this->showSummary();
    }

    protected function scanAll()
    {
        $this->info("📊 Scansione completa del sistema...");
        $this->findDuplicates();
        $this->verifyRoutes();
        $this->checkModels();
        $this->info("✅ Scansione completata!\n");
    }

    protected function findDuplicates()
    {
        $this->info("🔍 Ricerca duplicati...");
        
        $directories = [
            'resources/views',
            '_DUPLICATES_MOVED/resources/views',
            '_BACKUP_OLD_netgescon-laravel_INACTIVE/resources/views',
            '_BACKUP_OLD_netgescon_INACTIVE/vendor/laravel/breeze/stubs'
        ];

        $viewFiles = [];
        $duplicates = [];

        foreach ($directories as $dir) {
            if (!File::exists(base_path($dir))) continue;

            $files = File::allFiles(base_path($dir));
            foreach ($files as $file) {
                if ($file->getExtension() === 'php') {
                    $relativePath = str_replace(base_path($dir) . '/', '', $file->getPathname());
                    $filename = $file->getFilename();
                    
                    if (!isset($viewFiles[$filename])) {
                        $viewFiles[$filename] = [];
                    }
                    
                    $viewFiles[$filename][] = [
                        'path' => $file->getPathname(),
                        'directory' => $dir,
                        'size' => $file->getSize(),
                        'modified' => $file->getMTime()
                    ];
                }
            }
        }

        foreach ($viewFiles as $filename => $files) {
            if (count($files) > 1) {
                $this->duplicates[$filename] = $files;
                $this->warn("⚠️  {$filename}: " . count($files) . " copie trovate");
            }
        }

        $this->info("📈 Trovati " . count($this->duplicates) . " file duplicati\n");
    }

    protected function verifyRoutes()
    {
        $this->info("🛤️  Verifica route e view...");
        
        $routes = Route::getRoutes();
        $missingViews = [];

        foreach ($routes as $route) {
            $action = $route->getAction();
            
            if (isset($action['controller'])) {
                $controller = $action['controller'];
                $controllerPath = base_path('app/Http/Controllers/' . str_replace('App\\Http\\Controllers\\', '', explode('@', $controller)[0]) . '.php');
                
                if (File::exists($controllerPath)) {
                    $content = File::get($controllerPath);
                    preg_match_all('/view\([\'"]([^\'"]+)[\'"]\)/', $content, $matches);
                    
                    foreach ($matches[1] as $viewName) {
                        $viewPath = resource_path('views/' . str_replace('.', '/', $viewName) . '.blade.php');
                        if (!File::exists($viewPath)) {
                            $missingViews[] = [
                                'view' => $viewName,
                                'controller' => $controller,
                                'route' => $route->uri()
                            ];
                        }
                    }
                }
            }
        }

        foreach ($missingViews as $missing) {
            $this->error("❌ View [{$missing['view']}] mancante per route {$missing['route']}");
        }

        $this->missingViews = $missingViews;
        $this->info("📈 Trovate " . count($missingViews) . " view mancanti\n");
    }

    protected function checkModels()
    {
        $this->info("🔗 Controllo relationship dei model...");
        
        $modelPath = app_path('Models');
        $models = File::allFiles($modelPath);
        $brokenRelationships = [];

        foreach ($models as $model) {
            $className = 'App\\Models\\' . $model->getFilenameWithoutExtension();
            
            if (class_exists($className)) {
                $content = File::get($model->getPathname());
                
                // Cerca relationship methods
                preg_match_all('/public function (\w+)\(\).*?return \$this->(\w+)\(([^)]+)\)/', $content, $matches, PREG_SET_ORDER);
                
                foreach ($matches as $match) {
                    $relationMethod = $match[1];
                    $relationType = $match[2];
                    $relatedModel = trim($match[3], '"\'');
                    
                    // Controlla se il model correlato esiste
                    if (strpos($relatedModel, '::class') === false) {
                        $relatedClassName = 'App\\Models\\' . $relatedModel;
                        if (!class_exists($relatedClassName)) {
                            $brokenRelationships[] = [
                                'model' => $className,
                                'method' => $relationMethod,
                                'type' => $relationType,
                                'related' => $relatedModel,
                                'issue' => 'Model non trovato'
                            ];
                        }
                    }
                }
            }
        }

        foreach ($brokenRelationships as $broken) {
            $this->error("💔 {$broken['model']}::{$broken['method']}() -> {$broken['issue']}");
        }

        $this->brokenRelationships = $brokenRelationships;
        $this->info("📈 Trovati " . count($brokenRelationships) . " relationship problematici\n");
    }

    protected function cleanDuplicates()
    {
        $this->info("🧹 Pulizia automatica duplicati...");
        
        if (empty($this->duplicates)) {
            $this->findDuplicates();
        }

        $cleaned = 0;
        foreach ($this->duplicates as $filename => $files) {
            // Mantieni solo il file più recente dalla directory resources/views
            $activeFile = null;
            $toMove = [];

            foreach ($files as $file) {
                if (strpos($file['directory'], 'resources/views') === 0 && strpos($file['directory'], '_DUPLICATES_') === false) {
                    if (!$activeFile || $file['modified'] > $activeFile['modified']) {
                        if ($activeFile) $toMove[] = $activeFile;
                        $activeFile = $file;
                    } else {
                        $toMove[] = $file;
                    }
                } else {
                    $toMove[] = $file;
                }
            }

            foreach ($toMove as $file) {
                $destination = base_path('_DUPLICATES_MOVED/' . str_replace(base_path(), '', $file['path']));
                $destinationDir = dirname($destination);
                
                if (!File::exists($destinationDir)) {
                    File::makeDirectory($destinationDir, 0755, true);
                }
                
                if (File::move($file['path'], $destination)) {
                    $cleaned++;
                    $this->line("📦 Spostato: {$filename}");
                }
            }
        }

        $this->info("✅ Puliti {$cleaned} file duplicati\n");
    }

    protected function generateReport()
    {
        $this->info("📋 Generazione report completo...");
        
        $report = [
            'timestamp' => now()->format('Y-m-d H:i:s'),
            'system_status' => [
                'duplicates_found' => count($this->duplicates),
                'missing_views' => count($this->missingViews),
                'broken_relationships' => count($this->brokenRelationships)
            ],
            'details' => [
                'duplicates' => $this->duplicates,
                'missing_views' => $this->missingViews,
                'broken_relationships' => $this->brokenRelationships
            ]
        ];

        $reportPath = storage_path('logs/netgescon_debug_' . date('Y-m-d_H-i-s') . '.json');
        File::put($reportPath, json_encode($report, JSON_PRETTY_PRINT));
        
        $this->info("📄 Report salvato: {$reportPath}\n");
    }

    protected function showSummary()
    {
        $this->info("📊 RIEPILOGO SISTEMA");
        $this->info("====================");
        $this->table(
            ['Categoria', 'Problemi Trovati', 'Stato'],
            [
                ['File Duplicati', count($this->duplicates), count($this->duplicates) > 0 ? '⚠️  Da gestire' : '✅ OK'],
                ['View Mancanti', count($this->missingViews), count($this->missingViews) > 0 ? '❌ Errori' : '✅ OK'],
                ['Relationship', count($this->brokenRelationships), count($this->brokenRelationships) > 0 ? '💔 Problemi' : '✅ OK']
            ]
        );

        if (count($this->duplicates) > 0 || count($this->missingViews) > 0 || count($this->brokenRelationships) > 0) {
            $this->warn("\n💡 Usa --clean per pulizia automatica o --report per report dettagliato");
        } else {
            $this->info("\n🎉 Sistema pulito e funzionante!");
        }
    }

    protected function hasOptions()
    {
        return $this->option('scan') || $this->option('duplicates') || 
               $this->option('routes') || $this->option('models') || 
               $this->option('clean') || $this->option('report');
    }
}