<?php

namespace App\Console\Commands;

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

class NotificationCheckTestLogPDF extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'notifications:check-test-log-pdf';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Check NDT test logs with results but missing PDF reports (VT, RT, UT, PT, MT, HT, PMI, PWHT, Ferrite)';

    /**
     * Test log tables with their result field names
     */
    private $testLogs = [
        'v_t_logs' => ['result' => 'vt_result', 'name' => 'VT'],
        'radiographic_tests' => ['result' => 'rt_result', 'name' => 'RT'],
        'ultrasonic_tests' => ['result' => 'ut_result', 'name' => 'UT'],
        'p_t_logs' => ['result' => 'pt_result', 'name' => 'PT'],
        'magnetic_tests' => ['result' => 'mt_result', 'name' => 'MT'],
        'hardness_tests' => ['result' => 'ht_result', 'name' => 'HT'],
        'p_m_i_tests' => ['result' => 'pmi_result', 'name' => 'PMI'],
        'p_w_h_t_s' => ['result' => 'pwht_result', 'name' => 'PWHT'],
        'ferrits' => ['result' => 'ferrite_result', 'name' => 'Ferrite'],
    ];

    /**
     * Execute the console command.
     *
     * @return int
     */
    public function handle()
    {
        $startTime = microtime(true);
        $commandName = $this->signature;
        
        // Log command start
        logNotificationStart($commandName);
        
        $this->info('Checking test logs for missing PDF reports...');
        
        $totalNotifications = 0;
        $totalSent = 0;
        $totalRecords = 0;
        $totalNew = 0;
        
        try {
            foreach ($this->testLogs as $table => $config) {
                $result = $this->checkTestLog($table, $config['result'], $config['name'], $totalSent, $totalRecords, $totalNew);
                if ($result > 0) {
                    $totalNotifications += 1; // Count as notification sent
                }
            }
            
            $duration = microtime(true) - $startTime;
            logNotificationComplete($commandName, $totalSent, $totalRecords, $totalNew, $duration);
            
            $this->info("Total notifications sent: {$totalNotifications}");
            
            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;
        }
    }
    
    /**
     * Check a specific test log table for missing PDFs
     */
    private function checkTestLog(string $table, string $resultField, string $testName, &$totalSent, &$totalRecords, &$totalNew): int
    {
        $this->info("Checking {$testName} Log...");
        
        $notificationCode = 'notification_test_log_pdf_missing_' . strtolower($testName);
        
        // Skip if checked recently (within 5 minutes)
        if (!shouldCheckNotification($notificationCode)) {
            $this->info("Skipping {$testName}: Last notification sent less than 5 minutes ago.");
            return 0;
        }
        
        // Get last check time (null = first run, check all records)
        $lastCheck = getLastCheckTimestamp($notificationCode);
        
        $query = DB::table($table)
            ->whereNotNull($resultField)
            ->where($resultField, '!=', '')
            ->where($resultField, '!=', 'Cancel')
            ->where(function($q) {
                $q->whereNull('report_file')
                  ->orWhere('report_file', '');
            });
        
        // 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)) {
            $this->info("No new missing PDFs found in {$testName} Log.");
            return 0;
        }
        
        // Prepare filter params
        $filterParams = [
            'table' => $table,
            '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)) {
                    $this->info("Skipping {$testName}: 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)) {
            $this->info("Skipping {$testName}: Same issue already notified and no new records.");
            return 0;
        }
        
        $newCount = $lastCheck !== null ? count(array_diff($ids, getAlreadyNotifiedIds($notificationCode))) : count($ids);
        $recordCount = count($filterParams['conditions']['id']);
        $message = sprintf(
            '%d %s test record(s) have results (non-Cancel) but missing PDF report files. Please upload the missing reports.',
            $recordCount,
            $testName
        );
        
        $sentCount = sendBatchNotificationWithFilter(
            $notificationCode,
            "{$testName} Test - PDF Report Missing",
            $message,
            $filterParams,
            $recordCount
        );
        
        // Update totals for handle method
        $totalSent += $sentCount;
        $totalRecords += $recordCount;
        $totalNew += $newCount;
        
        $this->info("Sent batch notification for {$testName} Log ({$recordCount} records, {$newCount} new).");
        return $sentCount > 0 ? 1 : 0;
    }
}