<?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\DataCapture;

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

        protected $period;
        protected $filename;

        /**
         * Create a new job instance.
         */
        public function __construct(string $period = '', string $filename = "ST.DATA.CAPTURE.csv")
        {
            $this->period   = $period;
            $this->filename = $filename;
        }

        /**
         * 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 data capture processing');
                    return;
                }

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

                Log::info("Processing data capture file: $filePath");

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

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

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

                if ($handle !== false) {
                    // CSV headers from the file
                    $csvHeaders = [
                        'id',
                        'account_number',
                        'sign',
                        'amount_lcy',
                        'transaction_code',
                        'their_reference',
                        'narrative',
                        'pl_category',
                        'customer_id',
                        'account_officer',
                        'product_category',
                        'value_date',
                        'currency',
                        'amount_fcy',
                        'exchange_rate',
                        'neg_ref_no',
                        'position_type',
                        'our_reference',
                        'reversal_marker',
                        'exposure_date',
                        'currency_market',
                        'iblc_country',
                        'last_version',
                        'otor_version',
                        'department_code',
                        'dealer_desk',
                        'bank_sort_cde',
                        'cheque_number',
                        'accounting_date',
                        'contingent_acct',
                        'cheq_type',
                        'tfs_reference',
                        'accounting_company',
                        'stmt_no',
                        'curr_no',
                        'inputter',
                        'authoriser',
                        'co_code',
                        'date_time'
                    ];

                    $rowCount = 0;

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

                        // Skip header row if it exists
                        if ($rowCount === 1 && strtolower($row[0]) === 'id') {
                            continue;
                        }

                        if (count($csvHeaders) === count($row)) {
                            $data = array_combine($csvHeaders, $row);

                            try {
                                // Format dates if they exist
                                foreach (['value_date', 'exposure_date', 'accounting_date'] as $dateField) {
                                    if (!empty($data[$dateField])) {
                                        try {
                                            $data[$dateField] = date('Y-m-d', strtotime($data[$dateField]));
                                        } catch (Exception $e) {
                                            // If date parsing fails, keep the original value
                                            Log::warning("Failed to parse date for $dateField: {$data[$dateField]}");
                                        }
                                    }
                                }

                                // Format datetime if it exists
                                if (!empty($data['date_time'])) {
                                    try {
                                        $data['date_time'] = date('Y-m-d H:i:s', strtotime($data['date_time']));
                                    } catch (Exception $e) {
                                        // If datetime parsing fails, keep the original value
                                        Log::warning("Failed to parse datetime for date_time: {$data['date_time']}");
                                    }
                                }

                                if (!empty($data['id'])) {
                                    DataCapture::updateOrCreate(
                                        ['id' => $data['id']],
                                        $data
                                    );
                                    $processedCount++;
                                }
                            } catch (Exception $e) {
                                $errorCount++;
                                Log::error("Error processing Data Capture at row $rowCount in $filePath: " . $e->getMessage());
                            }
                        } else {
                            Log::warning("Row $rowCount in $filePath has incorrect column count. Expected: " . count($csvHeaders) . ", 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("Data capture processing completed. Total processed: $processedCount, Total errors: $errorCount");

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