<?php

namespace App\Services\RegisterCreator\DocumentProcessors;

use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
use Illuminate\Support\Facades\Log;

class QaDocumentProcessor extends AbstractDocumentProcessor
{
    /**
     * Process QA type documents (NDT reports, procedures, etc.)
     */
    public function process(
        array $weldLogData,
        array $document,
        Worksheet $sheet,
        int &$currentRow,
        array $settings
    ): int {
        $this->initialize($weldLogData, $document, $sheet, $currentRow, $settings);
        
        $this->log("Processing QA document: {$document['path']}");
        
        // Get all joints with same line number
        $allJoints = apply_welded_filter(
            db("weld_logs")->where(
                $this->registerColumnBased,
                $this->weldLogData[$this->registerColumnBased]
            )
        )->get();
        
        $this->log("Found {$allJoints->count()} joints for processing");
        
        // Check if this is a procedure document
        if (strpos($document['path'], "Procedure") !== false) {
            return $this->processProcedureDocuments($currentRow);
        }
        
        // Process NDT reports
        return $this->processNdtReports($allJoints, $currentRow);
    }
    
    /**
     * Process NDT (Non-Destructive Testing) reports
     */
    private function processNdtReports($allJoints, int &$currentRow): int
    {
        $allReports = [];
        $uniqueReports = [];
        $duplicateCount = 0;
        
        // LAYER 1: Get reports from weld_logs (synced data)
        $this->log("Layer 1: Extracting reports from weld_logs");
        foreach ($allJoints as $joint) {
            $jointArray = (array) $joint;
            $logTypes = array_keys(log_test_types());
            
            foreach ($logTypes as $logType) {
                try {
                    if (strpos(strtolower($this->document['path']), $logType) !== false) {
                        $reportNoPrefix = $logType . "_report";
                        
                        if ($logType == "pmi") {
                            $reportNoPrefix = "no_of_testing_report";
                        }
                        
                        $reportNo = $jointArray[$reportNoPrefix] ?? '';
                        
                        if (!empty($reportNo) && !in_array($reportNo, $uniqueReports)) {
                            $uniqueReports[] = $reportNo;
                            
                            $allReports[] = [
                                'report_no' => $reportNo,
                                'document_date' => $jointArray[$logType . '_test_date'] ?? '',
                                'log_type' => $logType,
                                'weld_log_array' => $jointArray
                            ];
                            
                            $this->log("Layer 1 - Report added: {$reportNo} ({$logType})");
                        } else if (!empty($reportNo)) {
                            $duplicateCount++;
                        }
                    }
                } catch (\Throwable $th) {
                    Log::error("Error processing test type: {$logType}", [
                        'error' => $th->getMessage()
                    ]);
                    continue;
                }
            }
        }
        
        $this->log("Layer 1 complete: " . count($allReports) . " unique reports from weld_logs");
        
        // Sort reports by joint number (A-Z)
        // Note: Excel rows are inserted in reverse (insertNewRowBefore), 
        // so A-Z order becomes Z-A in Excel (correct order)
        usort($allReports, function($a, $b) {
            $jointNoA = $a['weld_log_array']['no_of_the_joint_as_per_as_built_survey'] ?? '';
            $jointNoB = $b['weld_log_array']['no_of_the_joint_as_per_as_built_survey'] ?? '';
            
            // Check if joint numbers are empty - throw error
            if (empty($jointNoA)) {
                throw new \Exception("Joint number is empty for report: {$a['report_no']}");
            }
            if (empty($jointNoB)) {
                throw new \Exception("Joint number is empty for report: {$b['report_no']}");
            }
            
            // Sort by joint number (natural/numeric order: 1, 2, 3, 10, 11)
            return strnatcmp($jointNoA, $jointNoB);
        });
        
        $this->log("Total " . count($allReports) . " unique reports sorted by joint number (A-Z)");
        $this->log("Duplicate reports skipped: {$duplicateCount}");
        
        // Process sorted reports
        foreach ($allReports as $reportData) {
            try {
                $normalizedReportNo = $this->normalizeSearchTerm($reportData['report_no']);
                $search = $this->searchFiles("storage/documents/{$this->document['path']}/*{$normalizedReportNo}*.pdf");
                
                $this->document['title2'] = $reportData['report_no'];
                
                // Get translation safely - handle array return
                $translationKey = $reportData['log_type'] . "_register_title";
                $translatedValue = e2($translationKey);
                
                // Ensure we have a string, not an array
                if (is_array($translatedValue)) {
                    $this->document['title4'] = $translationKey; // Use key as fallback
                    Log::warning("Translation returned array for key: {$translationKey}, using key as fallback");
                } else {
                    $this->document['title4'] = (string) $translatedValue;
                }
                
                $lineNumber = $reportData['report_no'];
                $newRow = $this->addRowToExcel(
                    $search,
                    $lineNumber,
                    $reportData['document_date']
                );
                
                if ($newRow > $currentRow) {
                    $currentRow = $newRow;
                }
            } catch (\Throwable $th) {
                $this->log("Error processing report: {$reportData['report_no']} - {$th->getMessage()}", 'error');
                continue;
            }
        }
        
        return $currentRow;
    }
    
    /**
     * Process procedure documents
     */
    private function processProcedureDocuments(int &$currentRow): int
    {
        $this->log("Processing Document Procedure");
        
        $documentProcedures = [];
        
        if (!empty($this->document['title2'])) {
            $customCertificates = array_map('trim', explode(",", $this->document['title2']));
            $documentProcedures = $customCertificates;
        }
        
        foreach ($documentProcedures as $procedureNo) {
            try {
                $procedure = db("document_procedures")
                    ->where("document_no", $procedureNo)
                    ->first();
                
                if ($procedure) {
                    $this->log("Procedure found: {$procedure->document_no}");
                    
                    $normalizedDocNo = $this->normalizeSearchTerm($procedure->document_no);
                    $searchPath = "storage/documents/{$this->document['path']}/*{$normalizedDocNo}*.pdf";
                    $search = $this->searchFiles($searchPath);
                    
                    $documentDate = $procedure->publish_date ?? '';
                    $lineNumber = $procedure->document_no;
                    $this->document['title2'] = $procedure->document_no;
                    
                    $newRow = $this->addRowToExcel(
                        $search,
                        $lineNumber,
                        $documentDate
                    );
                    
                    if ($newRow > $currentRow) {
                        $currentRow = $newRow;
                    }
                } else {
                    $this->log("Procedure not found: {$procedureNo}", 'warning');
                }
            } catch (\Throwable $th) {
                $this->log("Error processing procedure: {$procedureNo} - {$th->getMessage()}", 'error');
                continue;
            }
        }
        
        return $currentRow;
    }
}