<?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\Account;
    use Modules\Webstatement\Models\AccountBalance;

    class ProcessAccountDataJob 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 account data processing');
                    return;
                }

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

                Log::info("Processing account 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) {
                    $headers = (new Account())->getFillable();
                    Log::info('Headers: ' . implode(", ", $headers));
                    $rowCount = 0;

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

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

                            // Check if start_year_bal is empty and set it to 0 if so
                            if (empty($data['start_year_bal']) || $data['start_year_bal'] == "" || $data['start_year_bal'] == null) {
                                $data['start_year_bal'] = 0;
                            }

                            if (empty($data['closure_date']) || $data['closure_date'] == "" || $data['closure_date'] == null) {
                                $data['closure_date'] = null;
                            }

                            try {
                                if ($data['account_number'] !== 'account_number') {
                                    // Use firstOrNew instead of updateOrCreate
                                    $account = Account::firstOrNew(['account_number' => $data['account_number']]);
                                    $account->fill($data);
                                    $account->save();

                                    // Store the opening balances in the AccountBalance model for this period
                                    if (isset($data['open_actual_bal']) || isset($data['open_cleared_bal'])) {
                                        // Prepare balance data for bulk insert/update
                                        $balanceData = [
                                            'account_number' => $data['account_number'],
                                            'period' => $this->period,
                                            'actual_balance' => empty($data['open_actual_bal']) ? 0 : $data['open_actual_bal'],
                                            'cleared_balance' => empty($data['open_cleared_bal']) ? 0 : $data['open_cleared_bal'],
                                            'created_at' => now(),
                                            'updated_at' => now()
                                        ];

                                        // Use updateOrInsert to reduce queries
                                        AccountBalance::updateOrInsert(
                                            [
                                                'account_number' => $data['account_number'],
                                                'period' => $this->period
                                            ],
                                            $balanceData
                                        );
                                    }

                                    $processedCount++;
                                }
                            } catch (Exception $e) {
                                $errorCount++;
                                Log::error("Error processing Account at row $rowCount in $filePath: " . $e->getMessage());
                            }
                        } else {
                            Log::warning("Row $rowCount in $filePath has incorrect column count. Expected: " . count($headers) . ", 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("Account data processing completed. Total processed: $processedCount, Total errors: $errorCount");

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