<?php

    namespace Modules\Webstatement\Jobs;

    use Exception;
    use Illuminate\Bus\Queueable;
    use Illuminate\Contracts\Queue\ShouldQueue;
    use Illuminate\Foundation\Bus\Dispatchable;
    use Illuminate\Queue\InteractsWithQueue;
    use Illuminate\Queue\SerializesModels;
    use Illuminate\Support\Facades\Log;
    use Illuminate\Support\Facades\Storage;
    use Modules\Webstatement\Models\Category;

    class ProcessCategoryDataJob implements ShouldQueue
    {
        use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

        protected $period;

        /**
         * Create a new job instance.
         */
        public function __construct(string $period = '')
        {
            $this->period = $period;
        }

        /**
         * Execute the job.
         */
        public function handle()
        : void
        {
            try {
                set_time_limit(24 * 60 * 60);
                $disk           = Storage::disk('sftpStatement');
                $processedCount = 0;
                $errorCount     = 0;

                if ($this->period === '')) {
                    Log::warning('No period provided for category data processing');
                    return;
                }

                // Construct the filename based on the period folder name
                $filename = "{$this->period}.ST.CATEGORY.csv";
                $filePath = "{$this->period}/$filename";

                Log::info("Processing category file: $filePath");

                if (!$disk->exists($filePath)) {
                    Log::warning("File not found: $filePath");
                    return;
                }

                // Create a temporary local copy of the file
                $tempFilePath = storage_path("app/temp_$filename");
                file_put_contents($tempFilePath, $disk->get($filePath));

                $handle = fopen($tempFilePath, "r");

                if ($handle !== false) {
                    // Get the headers from the first row
                    $headerRow = fgetcsv($handle, 0, "~");

                    // Map the headers to our model fields
                    $headerMap = [
                        'id'            => 'id_category',
                        'date_time'     => 'date_time',
                        'description'   => 'description',
                        'short_name'    => 'short_name',
                        'system_ind'    => 'system_ind',
                        'record_status' => 'record_status',
                        'co_code'       => 'co_code',
                        'curr_no'       => 'curr_no',
                        'l_db_cr_ind'   => 'l_db_cr_ind',
                        'category_code' => 'category_code'
                    ];

                    $rowCount = 0;

                    while (($row = fgetcsv($handle, 0, "~")) !== false) {
                        $rowCount++;

                        if (count($headerRow) === count($row)) {
                            // Combine the header row with the data row
                            $rawData = array_combine($headerRow, $row);

                            // Map the raw data to our model fields
                            $data = [];
                            foreach ($headerMap as $csvField => $modelField) {
                                $data[$modelField] = $rawData[$csvField] ?? null;
                            }

                            try {
                                // Skip header row if it was included in the data
                                if ($data['id_category'] !== 'id') {
                                    // Use firstOrNew instead of updateOrCreate
                                    $category = Category::firstOrNew(['id_category' => $data['id_category']]);
                                    $category->fill($data);
                                    $category->save();
                                    $processedCount++;
                                }
                            } catch (Exception $e) {
                                $errorCount++;
                                Log::error("Error processing Category at row $rowCount in $filePath: " . $e->getMessage());
                            }
                        } else {
                            Log::warning("Row $rowCount in $filePath has incorrect column count. Expected: " . count($headerRow) . ", Got: " . count($row));
                        }
                    }

                    fclose($handle);
                    Log::info("Completed processing $filePath. Processed $processedCount records with $errorCount errors.");

                    // Clean up the temporary file
                    unlink($tempFilePath);
                } else {
                    Log::error("Unable to open file: $filePath");
                }

                Log::info("Category data processing completed. Total processed: $processedCount, Total errors: $errorCount");

            } catch (Exception $e) {
                Log::error('Error in ProcessCategoryDataJob: ' . $e->getMessage());
                throw $e;
            }
        }
    }