<?php 
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\IOFactory;
use Illuminate\Support\Facades\Cache;

function workPermitReplacerExcel2(?Spreadsheet $spreadsheet, $weldLog, $documentInfo, $type="replacer") {
    // Handle project value from weldLog (may be array or object)
    $weldLog = (object)$weldLog;
    if(isset($weldLog->project)) {
        $project = $weldLog->project;
    }else{
        $project = '';
    }
    // Fetch the work permit users from the database
    $cacheKey = "work_permit_users_{$project}_{$documentInfo->slug}";
    $workPermitUsers = db("work_permit_documents")
    ->select([
        'work_permit_documents.*',
        'subcontractors.*',
        'work_permit_documents.sign_order as personel_sign_order',
        'subcontractors.sign_order as firma_sign_order',
    ])
    ->leftJoin("subcontractors", "work_permit_documents.company", "subcontractors.company_name_ru")
    ->where("zone", "like", "%{$project}%")
    ->where("assigned_documents", "like", "%{$documentInfo->slug}%")
    ->get();

        // Initialize data array for placeholders
    $data = [];

    if ($type == "replacer") {
        // Only process spreadsheet if it's not null
        if ($spreadsheet !== null) {
            try {
                // Iterate over each sheet in the spreadsheet
                foreach ($spreadsheet->getAllSheets() as $sheet) {
                    // Loop through all the cells in the sheet and replace placeholders
                    foreach ($sheet->getRowIterator() as $row) {
                        foreach ($row->getCellIterator() as $cell) {
                            $cellValue = $cell->getValue();
                            if (is_string($cellValue)) {
                                // Perform the replacement for each work permit user
                                foreach ($workPermitUsers as $wpi) {
                                    // Get all properties for the current work permit user
                                    
                                    // Support for old format (using only personel_sign_order)
                                    $jobDescPrefix = $wpi->job_description.$wpi->personel_sign_order;
                                    $companyCodePrefix = $wpi->company_code.$wpi->personel_sign_order;
                                    
                                    // Support for new format (using both firma_sign_order and personel_sign_order)
                                    $jobDescPrefixNew = $wpi->job_description.$wpi->firma_sign_order."_".$wpi->personel_sign_order;
                                    $companyCodePrefixNew = $wpi->company_code.$wpi->firma_sign_order."_".$wpi->personel_sign_order;
                                    
                                    // Dynamically replace all properties
                                    foreach ((array)$wpi as $key => $value) {
                                        // Skip internal properties and non-string/numeric values
                                        if (is_string($key) && !str_starts_with($key, "\0") && (is_string($value) || is_numeric($value))) {
                                            // Handle dates
                                            if (in_array($key, ['attorney_date', 'date_of_issue', 'certificate_date']) && !empty($value)) {
                                                $value = df($value);
                                            }
                                            
                                            // Replace with old format (job_description + personel_sign_order)
                                            $cellValue = str_replace("{".$jobDescPrefix."_".$key."}", $value, $cellValue);
                                            $cellValue = str_replace("{".$companyCodePrefix."_".$key."}", $value, $cellValue);
                                            
                                            // Replace with new format (job_description + firma_sign_order + "_" + personel_sign_order)
                                            $cellValue = str_replace("{".$jobDescPrefixNew."_".$key."}", $value, $cellValue);
                                            $cellValue = str_replace("{".$companyCodePrefixNew."_".$key."}", $value, $cellValue);
                                        }
                                    }
                                    
                                    // For backward compatibility, add specific replacements for commonly used fields
                                    // Old format
                                    $cellValue = str_replace("{".$jobDescPrefix."_company_name}", $wpi->company, $cellValue);
                                    $cellValue = str_replace("{".$companyCodePrefix."_company_name}", $wpi->company, $cellValue);
                                    $cellValue = str_replace("{".$jobDescPrefix."_certificate_no}", $wpi->certificates_number, $cellValue);
                                    $cellValue = str_replace("{".$companyCodePrefix."_certificate_no}", $wpi->certificates_number, $cellValue);
                                    $cellValue = str_replace("{".$jobDescPrefix."_certificate_number}", $wpi->certificates_number, $cellValue);
                                    $cellValue = str_replace("{".$companyCodePrefix."_certificate_number}", $wpi->certificates_number, $cellValue);
                                    
                                    // New format
                                    $cellValue = str_replace("{".$jobDescPrefixNew."_company_name}", $wpi->company, $cellValue);
                                    $cellValue = str_replace("{".$companyCodePrefixNew."_company_name}", $wpi->company, $cellValue);
                                    $cellValue = str_replace("{".$jobDescPrefixNew."_certificate_no}", $wpi->certificates_number, $cellValue);
                                    $cellValue = str_replace("{".$companyCodePrefixNew."_certificate_no}", $wpi->certificates_number, $cellValue);
                                    $cellValue = str_replace("{".$jobDescPrefixNew."_certificate_number}", $wpi->certificates_number, $cellValue);
                                    $cellValue = str_replace("{".$companyCodePrefixNew."_certificate_number}", $wpi->certificates_number, $cellValue);
                                    
                                    // Update the cell with the new value
                                    $cell->setValue($cellValue);
                                }
                            }
                        }
                    }
                }
                // Return the modified spreadsheet for replacer type
                return $spreadsheet;
            } catch (\Throwable $th) {
                // Log error but continue
                // error_log("Error processing spreadsheet: " . $th->getMessage());
            }
        }
        
        // If spreadsheet is null or an error occurred, return empty array
        return [];
    } else {
        // For other types (e.g. "data"), collect placeholders
        foreach ($workPermitUsers as $wpi) {
            // Get all properties for the current work permit user
            $wpiArray = (array)$wpi;
            
            foreach ($wpiArray as $key => $value) {
                // Skip internal properties
                if (is_string($key) && !str_starts_with($key, "\0")) {
                    // Old format placeholders (job_description + personel_sign_order)
                    $jobDescPlaceholder = "{" . $wpi->job_description . $wpi->personel_sign_order . "_" . $key . "}";
                    if (!in_array($jobDescPlaceholder, $data)) {
                        $data[] = $jobDescPlaceholder;
                    }
                    
                    $companyCodePlaceholder = "{" . $wpi->company_code . $wpi->personel_sign_order . "_" . $key . "}";
                    if (!in_array($companyCodePlaceholder, $data)) {
                        $data[] = $companyCodePlaceholder;
                    }
                    
                    // New format placeholders (job_description + firma_sign_order + "_" + personel_sign_order)
                    $jobDescPlaceholderNew = "{" . $wpi->job_description . $wpi->firma_sign_order . "_" . $wpi->personel_sign_order . "_" . $key . "}";
                    if (!in_array($jobDescPlaceholderNew, $data)) {
                        $data[] = $jobDescPlaceholderNew;
                    }
                    
                    $companyCodePlaceholderNew = "{" . $wpi->company_code . $wpi->firma_sign_order . "_" . $wpi->personel_sign_order . "_" . $key . "}";
                    if (!in_array($companyCodePlaceholderNew, $data)) {
                        $data[] = $companyCodePlaceholderNew;
                    }
                }
            }
            
            // For backward compatibility, add specific placeholders for commonly used fields
            $commonPlaceholders = [
                "company_name" => "company",
                "certificate_no" => "certificates_number",
                "certificate_number" => "certificates_number",
                "document_code" => "document_code",
                "document_number" => "document_number",
                "revision" => "revision",
                "date_of_issue" => "date_of_issue",
                "duty" => "duty",
                "attorney" => "attorney",
                "attorney_date" => "attorney_date",
                "name_surname" => "name_surname",
                "id_no" => "id_no",
                "level" => "level",
                "description" => "description",
                "status" => "status",
                "dept" => "dept",
                "zone" => "zone",
                "third_party" => "third_party",
            ];
            
            foreach ($commonPlaceholders as $placeholder => $field) {
                // Old format
                $jobDescPlaceholder = "{" . $wpi->job_description . $wpi->personel_sign_order . "_" . $placeholder . "}";
                $companyCodePlaceholder = "{" . $wpi->company_code . $wpi->personel_sign_order . "_" . $placeholder . "}";
                
                if (!in_array($jobDescPlaceholder, $data)) {
                    $data[] = $jobDescPlaceholder;
                }
                if (!in_array($companyCodePlaceholder, $data)) {
                    $data[] = $companyCodePlaceholder;
                }
                
                // New format
                $jobDescPlaceholderNew = "{" . $wpi->job_description . $wpi->firma_sign_order . "_" . $wpi->personel_sign_order . "_" . $placeholder . "}";
                $companyCodePlaceholderNew = "{" . $wpi->company_code . $wpi->firma_sign_order . "_" . $wpi->personel_sign_order . "_" . $placeholder . "}";
                
                if (!in_array($jobDescPlaceholderNew, $data)) {
                    $data[] = $jobDescPlaceholderNew;
                }
                if (!in_array($companyCodePlaceholderNew, $data)) {
                    $data[] = $companyCodePlaceholderNew;
                }
            }
        }
        // Return the placeholder list
        return $data;
    }
}
?>