<?php

namespace App\Services\RegisterCreator;

use Illuminate\Support\Facades\Log;

class PlaceholderReplacer
{
    /**
     * Prepare replacements array from weld log data
     */
    public function prepareReplacements(array $weldLogData, array $additionalData = []): array
    {
        $replacements = [];
        
        // Add project name
        $replacements['{project_name}'] = setting('project_name_ru') ?? '';
        
        // Add all weld log fields
        foreach ($weldLogData as $column => $value) {
            $replacements['{' . $column . '}'] = $value ?? '';
        }
        
        // Add additional data (title placeholders, etc.)
        foreach ($additionalData as $key => $value) {
            if (!str_starts_with($key, '{')) {
                $key = '{' . $key . '}';
            }
            $replacements[$key] = $value ?? '';
        }
        
        Log::debug('Placeholders prepared', [
            'count' => count($replacements),
            'keys' => array_keys($replacements)
        ]);
        
        return $replacements;
    }
    
    /**
     * Get latest test date from weld log
     */
    public function getLatestDate(array $weldLogData, string $registerColumnBased): string
    {
        try {
            $latestDateQuery = db("weld_logs")
                ->where($registerColumnBased, $weldLogData[$registerColumnBased])
                ->select(
                    \DB::raw("GREATEST(
                        IFNULL(vt_test_date, '0000-00-00'),
                        IFNULL(rt_test_date, '0000-00-00'),
                        IFNULL(ut_test_date, '0000-00-00'),
                        IFNULL(pt_test_date, '0000-00-00'),
                        IFNULL(mt_test_date, '0000-00-00'),
                        IFNULL(pmi_test_date, '0000-00-00'),
                        IFNULL(ht_test_date, '0000-00-00'),
                        IFNULL(pwht_test_date, '0000-00-00'),
                        IFNULL(ferrite_test_date, '0000-00-00')
                    ) AS latest_date")
                )
                ->first();
            
            // If query returns result, use latest date, otherwise use welding_date
            $latestDate = ($latestDateQuery && $latestDateQuery->latest_date != '0000-00-00') 
                ? $latestDateQuery->latest_date 
                : ($weldLogData['welding_date'] ?? now()->format('Y-m-d'));
            
            Log::debug('Latest date calculated', [
                'line' => $weldLogData[$registerColumnBased],
                'date' => $latestDate
            ]);
            
            return $latestDate;
            
        } catch (\Throwable $th) {
            Log::error('Error calculating latest date', [
                'error' => $th->getMessage()
            ]);
            return $weldLogData['welding_date'] ?? now()->format('Y-m-d');
        }
    }
}