<?php
/**
 * Batch Phase 2 Update - массовое обновление записей в vtiger_notes для переключения на S3
 * 
 * Этот скрипт:
 * 1. Находит все записи с s3_key, но еще не переключенные на External (filelocationtype != 'E')
 * 2. Обновляет их пакетами, используя данные из migration_results_*.json
 * 3. Создает резервные копии перед обновлением
 */

ini_set('memory_limit', '512M');
set_time_limit(0);
date_default_timezone_set('Europe/Moscow');

$ROOT = '/var/www/fastuser/data/www/crm.clientright.ru/';

// Dependencies
require_once $ROOT . 'config.inc.php';

// CLI options
$opts = getopt('', [
    'limit::',
    'offset::',
    'dry-run::',
    'activate-external::'
]);

$limit = isset($opts['limit']) ? (int)$opts['limit'] : 100;
$offset = isset($opts['offset']) ? (int)$opts['offset'] : 0;
$dryRun = isset($opts['dry-run']) ? (int)$opts['dry-run'] !== 0 : true;
$activateExternal = isset($opts['activate-external']) ? (int)$opts['activate-external'] !== 0 : true;

// Database connection
$mysqli = new mysqli($dbconfig['db_server'], $dbconfig['db_username'], $dbconfig['db_password'], $dbconfig['db_name']);
if ($mysqli->connect_error) {
    die("Connection failed: " . $mysqli->connect_error);
}
$mysqli->set_charset("utf8");

// Logging
$logDir = $ROOT . 'logs';
if (!is_dir($logDir)) mkdir($logDir, 0755, true);
$logFile = $logDir . '/phase2_batch_update.log';

function logln($msg) {
    global $logFile;
    $line = '[' . date('Y-m-d H:i:s') . '] ' . $msg . PHP_EOL;
    file_put_contents($logFile, $line, FILE_APPEND | LOCK_EX);
    echo $line;
}

// Load migration results to get S3 URLs
function loadMigrationResults() {
    global $ROOT;
    $resultsDir = $ROOT . 'crm_extensions/file_storage/';
    $files = glob($resultsDir . 'migration_results_*.json');
    
    $urlMap = [];
    foreach ($files as $file) {
        $data = json_decode(file_get_contents($file), true);
        if (isset($data['copied'])) {
            foreach ($data['copied'] as $item) {
                if (isset($item['notesid']) && isset($item['url'])) {
                    $urlMap[$item['notesid']] = $item['url'];
                }
            }
        }
    }
    
    logln("Loaded " . count($urlMap) . " S3 URLs from migration results");
    return $urlMap;
}

logln("Starting Phase 2 batch update");
logln("Parameters: limit=$limit, offset=$offset, dry-run=" . ($dryRun ? 'true' : 'false') . ", activate-external=" . ($activateExternal ? 'true' : 'false'));

// Load S3 URLs
$urlMap = loadMigrationResults();

// Find records that need updating
$query = "SELECT notesid, filename, s3_key, s3_bucket, filelocationtype 
          FROM vtiger_notes 
          WHERE s3_key IS NOT NULL 
          AND s3_key != '' 
          AND filelocationtype != 'E'
          LIMIT $limit OFFSET $offset";

$result = $mysqli->query($query);
if (!$result) {
    die("Query failed: " . $mysqli->error);
}

$records = [];
while ($row = $result->fetch_assoc()) {
    $records[] = $row;
}

logln("Found " . count($records) . " records to update (offset=$offset, limit=$limit)");

if (empty($records)) {
    logln("No records to update. Migration Phase 2 may be complete.");
    exit(0);
}

$updated = 0;
$skipped = 0;
$errors = 0;

foreach ($records as $record) {
    $notesid = $record['notesid'];
    $currentFilename = $record['filename'];
    $s3Key = $record['s3_key'];
    $s3Bucket = $record['s3_bucket'];
    $currentType = $record['filelocationtype'];
    
    // Get S3 URL from migration results
    $s3Url = isset($urlMap[$notesid]) ? $urlMap[$notesid] : null;
    
    if (!$s3Url) {
        // Construct URL from bucket and key
        $s3Url = "https://s3.twcstorage.ru/$s3Bucket/" . urlencode($s3Key);
        logln("CONSTRUCTED URL for notesid=$notesid: $s3Url");
    }
    
    logln("Processing notesid=$notesid, current_type=$currentType");
    
    if (!$dryRun) {
        // Create backup
        $backupDir = $ROOT . 'crm_extensions/file_storage/backups/';
        if (!is_dir($backupDir)) mkdir($backupDir, 0755, true);
        
        $backupFile = $backupDir . 'phase2_batch_backup_' . $notesid . '_' . date('Ymd_His') . '.json';
        $backup = [
            'notesid' => $notesid,
            'original_filename' => $currentFilename,
            'original_filelocationtype' => $currentType,
            'timestamp' => date('c')
        ];
        file_put_contents($backupFile, json_encode($backup, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE));
        
        // Update database
        if ($activateExternal) {
            $updateQuery = "UPDATE vtiger_notes 
                           SET filename = ?, filelocationtype = 'E' 
                           WHERE notesid = ?";
            $stmt = $mysqli->prepare($updateQuery);
            $stmt->bind_param('si', $s3Url, $notesid);
        } else {
            // Just update filename, keep filelocationtype as is
            $updateQuery = "UPDATE vtiger_notes 
                           SET filename = ? 
                           WHERE notesid = ?";
            $stmt = $mysqli->prepare($updateQuery);
            $stmt->bind_param('si', $s3Url, $notesid);
        }
        
        if ($stmt->execute()) {
            logln("UPDATED notesid=$notesid -> External URL: $s3Url");
            $updated++;
        } else {
            logln("ERROR updating notesid=$notesid: " . $stmt->error);
            $errors++;
        }
        $stmt->close();
    } else {
        logln("DRY-RUN: Would update notesid=$notesid -> $s3Url" . ($activateExternal ? " (External)" : ""));
        $updated++;
    }
}

logln("Phase 2 batch update completed:");
logln("- Updated: $updated");
logln("- Skipped: $skipped");
logln("- Errors: $errors");
logln("- Mode: " . ($dryRun ? "DRY-RUN" : "LIVE"));

$mysqli->close();
?>