<?php
// telegram_scraper.php
if (php_sapi_name() !== 'cli') {
    die("This script must be run from the command line (Terminal).\n");
}

// Load .env for CLI
$homeDir = '';
if (preg_match('#^(/home/[^/]+)#', __DIR__, $matches)) {
    $homeDir = $matches[1];
}

$envPaths = [
    __DIR__ . '/../.env', 
    __DIR__ . '/../../.env',
    $homeDir ? $homeDir . '/.env' : ''
];
foreach ($envPaths as $envPath) {
    if (file_exists($envPath)) {
        $lines = file($envPath, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
        foreach ($lines as $line) {
            $line = trim($line);
            if (empty($line) || strpos($line, '#') === 0) continue;
            $parts = explode('=', $line, 2);
            if (count($parts) === 2) {
                $key = trim($parts[0]);
                $val = trim(trim($parts[1]), "\"'");
                putenv("$key=$val");
                $_ENV[$key] = $val;
            }
        }
        break;
    }
}

require_once __DIR__ . '/../core/Services/SiroGeminiService.php';
require_once __DIR__ . '/../core/Database/Database.php';

if (!file_exists(__DIR__ . '/madeline.php')) {
    die("Error: madeline.php not found. Please run telegram_setup.php first.\n");
}
require_once __DIR__ . '/madeline.php';

if (!file_exists(__DIR__ . '/telegram_session.madeline')) {
    die("Error: No session found. Please run telegram_setup.php to authenticate.\n");
}

echo "[*] Starting Telegram Scraper...\n";

$settings = new \danog\MadelineProto\Settings();
$settings->getAppInfo()->setApiId(2040);
$settings->getAppInfo()->setApiHash('b18441a1ff607e10a989891a5462e627');

$MadelineProto = new \danog\MadelineProto\API('telegram_session.madeline', $settings);
// Start MadelineProto (will resume session silently since it's already authenticated)
$MadelineProto->start();

// Define targets (Usernames, Group IDs, or Links)
// NOTE: You must be a member of the group/channel if it is private.
$targets = [
    // 'https://t.me/example_group',
    // '@example_channel',
    '@YallaGo_Captains',
    '@TaxiFJOR','@zakinntaxi','@zakinncaptains','@zakinaleppo','https://t.me/+rsfxbXEyDCczY2Nk'
];

if (empty($targets)) {
    echo "[-] No targets defined. Please edit telegram_scraper.php and add your target groups/channels.\n";
    exit;
}

$allMessages = [];

foreach ($targets as $target) {
    echo "[*] Fetching latest messages from: $target\n";
    try {
        // Fetch history (last 50 messages per target)
        $messages_Messages = $MadelineProto->messages->getHistory([
            'peer' => $target,
            'offset_id' => 0,
            'offset_date' => 0,
            'add_offset' => 0,
            'limit' => 50,
            'max_id' => 0,
            'min_id' => 0,
            'hash' => 0,
        ]);
        
        if (isset($messages_Messages['messages'])) {
            foreach ($messages_Messages['messages'] as $msg) {
                if (isset($msg['message']) && !empty(trim($msg['message']))) {
                    // Prefix with [TELEGRAM] to inform Gemini
                    $allMessages[] = "[TELEGRAM]: " . trim($msg['message']);
                }
            }
        }
    } catch (\Exception $e) {
        echo "[-] Error fetching $target: " . $e->getMessage() . "\n";
    }
}

if (empty($allMessages)) {
    echo "[-] No text messages found.\n";
    exit;
}

echo "[+] Collected " . count($allMessages) . " messages.\n";
echo "--- Sample (First 3 messages) ---\n";
for($i=0; $i<min(3, count($allMessages)); $i++) {
    echo $allMessages[$i] . "\n";
}
echo "---------------------------------\n";
echo "[*] Sending to Gemini AI for analysis...\n";

$gemini = new SiroGeminiService();

if (!getenv('GEMINI_API_KEY') && empty($_ENV['GEMINI_API_KEY'])) {
    echo "[-] ERROR: GEMINI_API_KEY is completely missing in CLI environment. Make sure your .env file exists.\n";
    exit;
}

$reportHtml = $gemini->evaluateTelegramForReporting($allMessages);

if ($reportHtml && strpos($reportHtml, 'لا توجد بيانات مفيدة') === false) {
    echo "[+] AI generated a useful report. Saving to DB...\n";
    
    $con = Database::get('main');
    
    $stmt = $con->prepare("INSERT INTO marketing_reports (platform, report_html) VALUES (?, ?)");
    $stmt->execute(['telegram', $reportHtml]);
    $reportId = $con->lastInsertId();

    echo "[+] Report saved with ID: $reportId\n";
    
    // Attempt FCM Alert
    try {
        require_once __DIR__ . '/../core/Services/FcmService.php';
        $fcm = new FcmService();
        $fcm->send(
            token: '/topics/admin_alerts',
            title: 'New Telegram Intelligence Report 📊',
            body: "A new autonomous analysis report for Telegram has been generated.",
            data: ['type' => 'marketing_report', 'report_id' => (string)$reportId]
        );
        echo "[+] Sent FCM alert to admins.\n";
    } catch (\Exception $e) {
        echo "[-] Error sending FCM: " . $e->getMessage() . "\n";
    }

} else {
    echo "[-] AI Report: No useful data or API Error.\n";
    echo "--- Gemini Raw Output ---\n";
    echo var_export($reportHtml, true) . "\n";
    echo "-------------------------\n";
}

echo "[*] Done.\n";