<?php
require_once __DIR__ . '/db/config.php';

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $botToken = $_POST['bot_token'] ?? '';
    $prefix = $_POST['prefix'] ?? '/';

    $db = db();
    
    // UPSERT pattern for MySQL/MariaDB
    $sql = "INSERT INTO bot_settings (setting_key, setting_value) 
            VALUES (:key1, :val1), (:key2, :val2)
            ON DUPLICATE KEY UPDATE setting_value = VALUES(setting_value)";
    
    try {
        $stmt = $db->prepare("INSERT INTO bot_settings (setting_key, setting_value) VALUES (?, ?) ON DUPLICATE KEY UPDATE setting_value = ?");
        
        $db->beginTransaction();
        $stmt->execute(['bot_token', $botToken, $botToken]);
        $stmt->execute(['prefix', $prefix, $prefix]);
        $db->commit();
        
        header('Location: index.php?saved=1#config');
        exit;
    } catch (Exception $e) {
        if ($db->inTransaction()) $db->rollBack();
        die("Error saving settings: " . $e->getMessage());
    }
}