<?php
/**
 * Batch PDF Generator CLI Script
 * 
 * Usage: php script.php accessnumbers.txt
 * 
 * Input file format: One accessnumber per line
 * Example:
 *   202403110001
 *   202403110002
 *   202403110003
 */

// Check command line arguments
if ($argc < 2) {
    echo "Usage: php script.php <accessnumbers_file>\n";
    echo "Example: php script.php batch.txt\n\n";
    echo "File format: One accessnumber per line\n";
    exit(1);
}

$inputFile = $argv[1];

// Convert to absolute path if relative
if (!str_starts_with($inputFile, '/') && !preg_match('/^[A-Za-z]:/', $inputFile)) {
    $inputFile = getcwd() . DIRECTORY_SEPARATOR . $inputFile;
}

if (!file_exists($inputFile)) {
    echo "Error: File not found: $inputFile\n";
    exit(1);
}

// We want errors to be shown when using it from the CLI.
error_reporting(E_ALL);
ini_set('display_errors', '1');

// Define essential paths
define('FCPATH', __DIR__ . DIRECTORY_SEPARATOR . 'public' . DIRECTORY_SEPARATOR);
define('ROOTPATH', realpath(__DIR__) . DIRECTORY_SEPARATOR);
define('WRITEPATH', ROOTPATH . 'writable' . DIRECTORY_SEPARATOR);
define('SYSTEMPATH', realpath(__DIR__ . '/vendor/codeigniter4/framework/system') . DIRECTORY_SEPARATOR);
define('APPPATH', realpath(__DIR__ . '/app') . DIRECTORY_SEPARATOR);

// Store original directory
$originalDir = getcwd();

// Change to public directory for CI4 boot
chdir(FCPATH);

// Load composer autoloader
require_once ROOTPATH . 'vendor/autoload.php';

// Load .env file first to get environment settings
$dotenv = new \CodeIgniter\Config\DotEnv(ROOTPATH);
$dotenv->load();

// Define ENVIRONMENT constant
define('ENVIRONMENT', $_ENV['CI_ENVIRONMENT'] ?? 'production');

// Load CI4's Boot class
require_once SYSTEMPATH . 'Boot.php';

// Create paths configuration
$paths = new \Config\Paths();

// Boot the console (non-spark CLI mode)
\CodeIgniter\Boot::bootConsole($paths);

// Change back to original directory
chdir($originalDir);

// Get database connection
$db = \Config\Database::connect();

// Read accessnumbers from file
$lines = file($inputFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
if ($lines === false) {
    echo "Error: Could not read file: $inputFile\n";
    exit(1);
}

$accessnumbers = array_filter(array_map('trim', $lines));
$total = count($accessnumbers);

if ($total === 0) {
    echo "Error: No accessnumbers found in file\n";
    exit(1);
}

echo "Processing $inputFile\n";
echo "Found $total access number(s)\n";
echo str_repeat("-", 60) . "\n";

// Statistics
$stats = [
    'success' => 0,
    'skipped' => 0,
    'failed' => 0,
    'details' => []
];

// Process each accessnumber
foreach ($accessnumbers as $index => $accessnumber) {
    $current = $index + 1;
    echo "[$current/$total] $accessnumber... ";
    flush();
    
    try {
        // Check if request exists and get language
        $sql = "SELECT ACCESSNUMBER, ISVAL2, REPORT_LANG 
                FROM GDC_CMOD.dbo.CM_REQUESTS 
                WHERE ACCESSNUMBER = ?";
        $row = $db->query($sql, [$accessnumber])->getRowArray();
        
        if (!$row) {
            echo "SKIPPED (not found in CM_REQUESTS)\n";
            $stats['skipped']++;
            $stats['details'][] = [
                'accessnumber' => $accessnumber,
                'status' => 'skipped',
                'message' => 'not found in CM_REQUESTS'
            ];
            continue;
        }
        
        if ($row['ISVAL2'] != 1) {
            echo "SKIPPED (not validated - ISVAL2=0)\n";
            $stats['skipped']++;
            $stats['details'][] = [
                'accessnumber' => $accessnumber,
                'status' => 'skipped',
                'message' => 'not validated (ISVAL2=0)'
            ];
            continue;
        }
        
        $eng = (int) ($row['REPORT_LANG'] ?? 0);
        
        // Get report data
        $reportHelper = new \App\Libraries\ReportHelper($db);
        $data = $reportHelper->getReportData($accessnumber, $eng);
        $data['eng'] = $eng;
        $data['accessnumber'] = $accessnumber;
        $data['ispdf'] = 1;
        
        // Generate HTML
        echo "generating HTML... ";
        flush();
        $html = view('report/template', $data);
        $filename = $accessnumber . ($eng == 1 ? '_eng' : '') . '.pdf';
        $collectionDate = $data['collectionDate'] ?? '';
        $hostnumber = $data['hostnumber'] ?? '';
        
        // Send to PDF spooler
        echo "sending to spooler... ";
        flush();
        $jobId = postToSpooler($html, $filename, $collectionDate, $accessnumber, $hostnumber);
        
        // Log to AUDIT_REQUESTS
        $sqlCheck = "SELECT COUNT(*) as cnt FROM GDC_CMOD.dbo.AUDIT_REQUESTS 
                     WHERE ACCESSNUMBER = ? AND STEPTYPE IN ('GEN_PDF', 'REGEN_PDF')";
        $result = $db->query($sqlCheck, [$accessnumber])->getRowArray();
        
        $stepType = ($result['cnt'] > 0) ? 'REGEN_PDF' : 'GEN_PDF';
        $stepStatus = $eng == 1 ? 'English' : 'Indonesian';
        
        $sqlLog = "INSERT INTO GDC_CMOD.dbo.AUDIT_REQUESTS(ACCESSNUMBER, STEPDATE, STEPTYPE, STEPSTATUS)
                   VALUES (?, GETDATE(), ?, ?)";
        $db->query($sqlLog, [$accessnumber, $stepType, $stepStatus]);
        
        // Create ORU file
        try {
            $oruDir = 'c:\inetpub\wwwroot\spooler_db\process_oru';
            if (!is_dir($oruDir)) {
                mkdir($oruDir, 0777, true);
            }
            
            $oruFile = "$oruDir/$accessnumber.oru";
            $date = date('Y-m-d H:i');
            $status = $data['status'] ?? 'PENDING';
            $file = fopen($oruFile, 'w+');
            fwrite($file, "$accessnumber\r\n$hostnumber\r\n$date\r\n$status\r\n-");
            fclose($file);
            
            $sqlOruLog = "INSERT INTO GDC_CMOD.dbo.AUDIT_REQUESTS(ACCESSNUMBER, STEPDATE, STEPTYPE, STEPSTATUS)
                          VALUES (?, GETDATE(), 'ORU_FILE', 'Created')";
            $db->query($sqlOruLog, [$accessnumber]);
        } catch (\Throwable $e) {
            // Log but don't fail if ORU creation fails
            error_log("ORU file creation failed for $accessnumber: " . $e->getMessage());
        }
        
        echo "QUEUED (job: $jobId, lang: $stepStatus)\n";
        $stats['success']++;
        $stats['details'][] = [
            'accessnumber' => $accessnumber,
            'status' => 'success',
            'jobId' => $jobId,
            'language' => $stepStatus
        ];
        
    } catch (\Exception $e) {
        echo "FAILED (" . $e->getMessage() . ")\n";
        $stats['failed']++;
        $stats['details'][] = [
            'accessnumber' => $accessnumber,
            'status' => 'failed',
            'error' => $e->getMessage()
        ];
    }
}

echo str_repeat("-", 60) . "\n";
echo "Complete: " . $stats['success'] . " queued, " . $stats['skipped'] . " skipped, " . $stats['failed'] . " failed\n";

// Save detailed log
$logFile = 'batch_pdf_' . date('Ymd_His') . '.log';
$logContent = "Batch PDF Generation Log\n";
$logContent .= "Generated: " . date('Y-m-d H:i:s') . "\n";
$logContent .= "Input file: $inputFile\n";
$logContent .= "Total: $total, Success: {$stats['success']}, Skipped: {$stats['skipped']}, Failed: {$stats['failed']}\n";
$logContent .= str_repeat("-", 60) . "\n";

foreach ($stats['details'] as $detail) {
    $logContent .= $detail['accessnumber'] . " | " . $detail['status'];
    if (isset($detail['jobId'])) {
        $logContent .= " | job: " . $detail['jobId'];
    }
    if (isset($detail['error'])) {
        $logContent .= " | error: " . $detail['error'];
    }
    $logContent .= "\n";
}

file_put_contents($logFile, $logContent);
echo "Log saved to: $logFile\n";

exit($stats['failed'] > 0 ? 1 : 0);

/**
 * Post HTML to PDF spooler
 */
function postToSpooler(string $html, string $filename, string $collectionDate = '', string $accessnumber = '', string $hostnumber = ''): string
{
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, 'http://glenlis:3000/api/pdf/generate');
    curl_setopt($ch, CURLOPT_POST, 1);
    
    $payload = [
        'html' => $html,
        'filename' => $filename
    ];
    
    if ($collectionDate) {
        $payload['collectionDate'] = $collectionDate;
    }
    
    if ($accessnumber) {
        $payload['accessnumber'] = $accessnumber;
    }
    
    if ($hostnumber) {
        $payload['hostnumber'] = $hostnumber;
    }
    
    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, [
        'Content-Type: application/json'
    ]);
    curl_setopt($ch, CURLOPT_TIMEOUT, 30);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
    
    $response = curl_exec($ch);
    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    $curlError = curl_error($ch);
    curl_close($ch);
    
    if ($curlError) {
        throw new \Exception("cURL error: $curlError");
    }
    
    if ($httpCode !== 200) {
        throw new \Exception("Spooler API returned HTTP $httpCode");
    }
    
    $data = json_decode($response, true);
    if (!isset($data['jobId'])) {
        throw new \Exception("Invalid response from spooler: no jobId");
    }
    
    return $data['jobId'];
}