<?php

namespace App\Jobs;

use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Queue\Queueable;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Queue\SerializesModels;
use App\Services\WebSocketService;
use App\Http\Controllers\DocumentManagementController;
use App\Http\Controllers\EncryptionController;
use Illuminate\Http\Request;
use Illuminate\Http\UploadedFile;
use Illuminate\Support\Facades\DB;
use ZipArchive;

class ValidateLoadArchives implements ShouldQueue
{
    use Queueable, InteractsWithQueue, SerializesModels;

    public $timeout = 300;
    public $tries = 1;
    
    protected $requestData;
    protected $userId;
    protected $jobId;

    public function __construct($requestData, $userId, $jobId)
    {
        $this->requestData = $requestData;
        $this->userId = $userId;
        $this->jobId = $jobId;
    }

    public function handle(): void
    {
        try {
            // Etapa 1: Inicio (0%)
            $this->broadcastProgress(0, 'processing', 'Iniciando validación de archivos...');
            
            // Procesar archivos
            $result = $this->processFiles();
            
            // Etapa final: Completado (100%)
            $this->broadcastProgress(100, 'completed', 'Archivos subidos exitosamente', $result);
            
        } catch (\Exception $e) {
            $this->broadcastProgress(0, 'failed', 'Error en la validación: ' . $e->getMessage());
        }
    }

    private function processFiles()
    {        
        if (!isset($this->requestData['temp_files'])) {
            throw new \Exception('temp_files not found in request data');
        }
        
        $tempFiles = $this->requestData['temp_files'];
        
        if (!isset($tempFiles['zip'])) {
            throw new \Exception('ZIP file not found in temp_files');
        }
        
        $this->broadcastProgress(50, 'processing', 'Extrayendo y subiendo archivos individuales...');
        
        $individualFiles = $this->extractAndUploadIndividualFiles($tempFiles['zip']);
        
        return [
            'temp_files' => $tempFiles,
            'individual_temp_files' => $individualFiles
        ];
    }

    private function broadcastProgress($progress, $status, $message, $data = null)
    {
        $progressData = [
            'progress' => $progress,
            'status' => $status,
            'message' => $message,
            'data' => $data,
            'jobId' => $this->jobId
        ];
        
        $webSocketService = new WebSocketService();
        $webSocketService->emitToUser($this->userId, 'file_validation_progress', $progressData);
    }
    

    private function extractAndUploadIndividualFiles($zipTempId)
    {
        try {
            // Get ZIP file from temp storage using DocumentManagementController
            $encryptionController = new EncryptionController();
            $tempIdDec = $encryptionController->decrypt($zipTempId);
            
            if (!$tempIdDec) {
                return [];
            }
            
            $tempFile = DB::table('S002V01TARTE')->where('ARTE_IDAR', $tempIdDec)->first();
            if (!$tempFile) {
                return [];
            }
            
            $zipPath = $tempFile->ARTE_UBTE;
            
            if (!file_exists($zipPath)) {
                return [];
            }
            $zip = new ZipArchive();
            
            if ($zip->open($zipPath) !== TRUE) {
                return [];
            }
            
            $tempFiles = [];
            $tempDir = storage_path('app/temp_extracted_' . time());
            mkdir($tempDir, 0755, true);
            
            for ($i = 0; $i < $zip->numFiles; $i++) {
                $fullPath = $zip->getNameIndex($i);
                
                // Skip directories
                if (substr($fullPath, -1) === '/') continue;
                
                $fileName = basename($fullPath);
                if (empty($fileName)) continue;
                
                $fileContent = $zip->getFromIndex($i);
                if ($fileContent !== false) {
                    $extractPath = $tempDir . '/' . $fileName;
                    
                    if (file_put_contents($extractPath, $fileContent)) {
                        $tempFileId = $this->uploadExtractedFileToTemp($extractPath, $fileName);
                        if ($tempFileId) {
                            $tempFiles[] = [
                                'original_name' => $fileName,
                                'temp_id' => $tempFileId
                            ];
                        }
                        unlink($extractPath);
                    }
                }
            }
            
            $zip->close();
            $this->removeDirectory($tempDir);
            
            return $tempFiles;
        } catch (\Exception $e) {
            return [];
        }
    }
    
    private function uploadExtractedFileToTemp($filePath, $fileName)
    {
        try {
            $extension = strtolower(pathinfo($fileName, PATHINFO_EXTENSION));
            $mimeType = $this->getMimeType($extension);
            
            $uploadedFile = new UploadedFile(
                $filePath,
                $fileName,
                $mimeType,
                null,
                true
            );
            
            $encryptionController = new EncryptionController();
            $request = new Request();
            $request->files->set('file', $uploadedFile);
            $request->merge([
                'id_user' => $encryptionController->encrypt($this->requestData['id_user']),
                'linea' => $this->requestData['linea']
            ]);
            
            $documentController = new DocumentManagementController();
            $response = $documentController->uploadTempFile($request);
            $data = json_decode($response->getContent());
            
            return $data->error ? false : $data->response->idArchivo;
        } catch (\Exception $e) {
            return false;
        }
    }
    
    private function getMimeType($extension)
    {
        $mimeTypes = [
            'pdf' => 'application/pdf',
            'doc' => 'application/msword',
            'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
            'xls' => 'application/vnd.ms-excel',
            'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
            'ppt' => 'application/vnd.ms-powerpoint',
            'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
            'jpg' => 'image/jpeg', 'jpeg' => 'image/jpeg',
            'png' => 'image/png', 'gif' => 'image/gif', 'bmp' => 'image/bmp',
            'txt' => 'text/plain', 'dwg' => 'application/acad', 'dxf' => 'application/dxf'
        ];
        
        return $mimeTypes[$extension] ?? 'application/octet-stream';
    }
    
    private function removeDirectory($dir)
    {
        if (!is_dir($dir)) return;
        
        $files = array_diff(scandir($dir), ['.', '..']);
        foreach ($files as $file) {
            $path = $dir . '/' . $file;
            is_dir($path) ? $this->removeDirectory($path) : unlink($path);
        }
        rmdir($dir);
    }
}