<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;
use Illuminate\Support\Facades\DB;

class NotificationCheckWeldlogCertificate extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'notifications:check-weldlog-certificate';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Check weldlog records for missing certificate PDFs after welding date is entered';

    /**
     * Execute the console command.
     *
     * @return int
     */
    public function handle()
    {
        $startTime = microtime(true);
        $commandName = $this->signature;
        
        // Log command start
        logNotificationStart($commandName);
        
        $this->info('Checking weldlog records for missing certificates...');
        
        $notificationCode = 'notification_weldlog_certificate_missing';
        
        try {
            // Skip if checked recently (within 5 minutes)
            if (!shouldCheckNotification($notificationCode)) {
                $this->info('Skipping: Last notification sent less than 5 minutes ago.');
                logNotificationSkip($commandName, 'Last notification sent less than 5 minutes ago');
                return 0;
            }
        
        // Get last check time (null = first run, check all records)
        $lastCheck = getLastCheckTimestamp($notificationCode);
        
        $query = DB::table('weld_logs')
            ->whereNotNull('welding_date')
            ->where('welding_date', '!=', '')
            ->where(function($q) {
                $q->whereNull('certificate_number_of_1')
                  ->orWhere('certificate_number_of_1', '')
                  ->orWhereNull('certificate_number_of_2')
                  ->orWhere('certificate_number_of_2', '');
            });
        
        // If not first run, only check new/updated records
        if ($lastCheck !== null) {
            $query->where(function($q) use ($lastCheck) {
                $q->where('created_at', '>', $lastCheck)
                  ->orWhere('updated_at', '>', $lastCheck);
            });
            
            // Get already notified IDs
            $alreadyNotifiedIds = getAlreadyNotifiedIds($notificationCode);
            if (!empty($alreadyNotifiedIds)) {
                $query->whereNotIn('id', $alreadyNotifiedIds);
            }
        }
        
        $ids = $query->pluck('id')->toArray();
        
        if (empty($ids)) {
            $this->info('No new missing certificates found in weldlog.');
            $duration = microtime(true) - $startTime;
            logNotificationComplete($commandName, 0, 0, 0, $duration);
            return 0;
        }
        
        // Prepare filter params
        $filterParams = [
            'table' => 'weld_logs',
            'conditions' => []
        ];
        
        // If not first run, merge with existing IDs
        if ($lastCheck !== null) {
            $existingIds = getAlreadyNotifiedIds($notificationCode);
            if (!empty($existingIds)) {
                $allIds = array_values(array_unique(array_merge($existingIds, $ids)));
                $newIds = array_diff($ids, $existingIds);
                if (empty($newIds)) {
                    $this->info('Skipping: No new records since last notification.');
                    $duration = microtime(true) - $startTime;
                    logNotificationSkip($commandName, 'No new records since last notification');
                    return 0;
                }
                $filterParams['conditions']['id'] = $allIds;
            } else {
                $filterParams['conditions']['id'] = $ids;
            }
        } else {
            $filterParams['conditions']['id'] = $ids;
        }
        
        // Check for duplicate
        if ($lastCheck !== null && isNotificationDuplicate($notificationCode, $filterParams)) {
            $this->info('Skipping: Same issue already notified and no new records.');
            $duration = microtime(true) - $startTime;
            logNotificationSkip($commandName, 'Same issue already notified and no new records');
            return 0;
        }
        
        $newCount = $lastCheck !== null ? count(array_diff($ids, getAlreadyNotifiedIds($notificationCode))) : count($ids);
        $title = 'Certificate Number 1-2 Missing';
        $message = sprintf(
            '%d weld log record(s) have missing certificate numbers. Please update certificate_number_of_1/2.',
            count($filterParams['conditions']['id'])
        );
        
        $sentCount = sendBatchNotificationWithFilter(
            $notificationCode,
            $title,
            $message,
            $filterParams,
            count($filterParams['conditions']['id'])
        );
        
        $duration = microtime(true) - $startTime;
        $totalRecords = count($filterParams['conditions']['id']);
        
        // Log completion
        logNotificationComplete($commandName, $sentCount, $totalRecords, $newCount, $duration);
        
        $this->info("Sent batch notification for weldlog certificates ({$totalRecords} records, {$newCount} new).");
        return 0;
        
        } catch (\Exception $e) {
            $duration = microtime(true) - $startTime;
            logNotificationError($commandName, $e->getMessage(), [
                'file' => $e->getFile(),
                'line' => $e->getLine(),
                'duration' => $duration,
            ]);
            
            $this->error("Error: " . $e->getMessage());
            return 1;
        }
    }
}