<?php
// Konfiguratsiya
define('API_TOKEN', '8493246716:AAGwPq4IzWqFAuhaNLDMFJ-ALRyzKp5Y220');
define('BOT_USERNAME', 'RekchiAi_bot');
define('ADMINS', ['Behruzxan', 'H08_09']);
define('RECEIPT_CHANNEL', '-1003181756108');
define('PROOF_CHANNEL', '@rekchi_tv');
define('TOPUP_CARD_NUMBER', '9860606740391457');
define('MAX_FILE_SIZE', 50 * 1024 * 1024);

// Ma'lumotlar bazasi
define('DATA_DIR', 'data');
define('USERS_FILE', DATA_DIR . '/users.json');
define('BUTTONS_FILE', DATA_DIR . '/buttons.json');
define('VIDEOS_META', DATA_DIR . '/videos.json');
define('CONFIG_FILE', DATA_DIR . '/config.json');
define('PROMOCODES_FILE', DATA_DIR . '/promocodes.json');
define('ORDERS_FILE', DATA_DIR . '/orders.json');
define('STATES_FILE', DATA_DIR . '/states.json');

// Papkalarni yaratish
if (!file_exists(DATA_DIR)) mkdir(DATA_DIR, 0777, true);
if (!file_exists(DATA_DIR . '/videos')) mkdir(DATA_DIR . '/videos', 0777, true);

// JSON fayllarni yuklash/saqlash
function load_json($path, $default = null) {
    if (!file_exists($path)) {
        file_put_contents($path, json_encode($default !== null ? $default : []));
        return $default !== null ? $default : [];
    }
    try {
        $data = json_decode(file_get_contents($path), true);
        return $data === null ? ($default !== null ? $default : []) : $data;
    } catch (Exception $e) {
        return $default !== null ? $default : [];
    }
}

function save_json($path, $data) {
    file_put_contents($path, json_encode($data, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT));
}

// Ma'lumotlarni yuklash
$users = load_json(USERS_FILE, []);
$buttons = load_json(BUTTONS_FILE, []);
$videos = load_json(VIDEOS_META, []);
$config = load_json(CONFIG_FILE, ["channels" => [], "contact" => null]);
$promocodes = load_json(PROMOCODES_FILE, []);
$orders = load_json(ORDERS_FILE, []);
$states = load_json(STATES_FILE, []);

// State management funksiyalari
function get_user_state($user_id) {
    global $states;
    return isset($states[$user_id]) ? $states[$user_id] : null;
}

function set_user_state($user_id, $state, $data = []) {
    global $states;
    $states[$user_id] = [
        'state' => $state,
        'data' => $data
    ];
    save_json(STATES_FILE, $states);
}

function clear_user_state($user_id) {
    global $states;
    if (isset($states[$user_id])) {
        unset($states[$user_id]);
        save_json(STATES_FILE, $states);
    }
}

function get_state_data($user_id, $key = null) {
    global $states;
    if (!isset($states[$user_id]) || !isset($states[$user_id]['data'])) {
        return null;
    }
    if ($key === null) {
        return $states[$user_id]['data'];
    }
    return isset($states[$user_id]['data'][$key]) ? $states[$user_id]['data'][$key] : null;
}

function set_state_data($user_id, $key, $value) {
    global $states;
    if (!isset($states[$user_id])) {
        $states[$user_id] = ['state' => '', 'data' => []];
    }
    $states[$user_id]['data'][$key] = $value;
    save_json(STATES_FILE, $states);
}

// Biznes logika funksiyalari
function referal_count_by_views($v) {
    if ($v <= 1000) return 1;
    elseif ($v <= 5000) return 3;
    elseif ($v <= 10000) return 5;
    else return max(1, intval($v / 2000));
}

function calculate_price($views) {
    if ($views >= 100000) return intval($views * 0.5);
    elseif ($views >= 50000) return intval($views * 0.6);
    elseif ($views >= 20000) return intval($views * 0.7);
    elseif ($views >= 10000) return intval($views * 0.8);
    elseif ($views >= 5000) return intval($views * 0.9);
    elseif ($views >= 1000) return $views;
    else return -1;
}

function get_hashtags($v) {
    return [
        "#Videolaringizni rekga chiqaradigan suniy intelektni hohlaysizmi? Telegramga RekchiAi_bot ga kiring.",
        ".",
        ".",
        "#Telegramdagi #RekchiAi_bot"
    ];
}

function get_valid_ref_count($uid) {
    global $users;
    if (!isset($users[$uid]['refs'])) return 0;
    
    $confirmed_refs = array_filter($users[$uid]['refs'], function($ref) use ($users) {
        return isset($users[$ref]['confirmed']) && $users[$ref]['confirmed'];
    });
    $bonus = isset($users[$uid]['bonus_refs']) ? $users[$uid]['bonus_refs'] : 0;
    return count($confirmed_refs) + $bonus;
}

function generate_captcha() {
    return rand(1000, 9999);
}

// Telegram API funksiyalari
function bot_sendMessage($chat_id, $text, $reply_markup = null, $parse_mode = null) {
    $url = "https://api.telegram.org/bot" . API_TOKEN . "/sendMessage";
    $data = [
        'chat_id' => $chat_id,
        'text' => $text
    ];
    
    if ($parse_mode) $data['parse_mode'] = $parse_mode;
    if ($reply_markup) $data['reply_markup'] = json_encode($reply_markup);
    
    return send_telegram_request($url, $data);
}

function bot_editMessageText($chat_id, $message_id, $text, $reply_markup = null, $parse_mode = null) {
    $url = "https://api.telegram.org/bot" . API_TOKEN . "/editMessageText";
    $data = [
        'chat_id' => $chat_id,
        'message_id' => $message_id,
        'text' => $text
    ];
    
    if ($parse_mode) $data['parse_mode'] = $parse_mode;
    if ($reply_markup) $data['reply_markup'] = json_encode($reply_markup);
    
    return send_telegram_request($url, $data);
}

function bot_sendPhoto($chat_id, $photo, $caption = null, $reply_markup = null) {
    $url = "https://api.telegram.org/bot" . API_TOKEN . "/sendPhoto";
    $data = [
        'chat_id' => $chat_id,
        'photo' => $photo
    ];
    
    if ($caption) $data['caption'] = $caption;
    if ($reply_markup) $data['reply_markup'] = json_encode($reply_markup);
    
    return send_telegram_request($url, $data);
}

function bot_sendVideo($chat_id, $video, $caption = null, $reply_markup = null) {
    $url = "https://api.telegram.org/bot" . API_TOKEN . "/sendVideo";
    $data = [
        'chat_id' => $chat_id,
        'video' => $video
    ];
    
    if ($caption) $data['caption'] = $caption;
    if ($reply_markup) $data['reply_markup'] = json_encode($reply_markup);
    
    return send_telegram_request($url, $data);
}

function bot_sendDocument($chat_id, $document, $caption = null, $reply_markup = null) {
    $url = "https://api.telegram.org/bot" . API_TOKEN . "/sendDocument";
    $data = [
        'chat_id' => $chat_id,
        'document' => $document
    ];
    
    if ($caption) $data['caption'] = $caption;
    if ($reply_markup) $data['reply_markup'] = json_encode($reply_markup);
    
    return send_telegram_request($url, $data);
}

function bot_editMessageCaption($chat_id, $message_id, $caption, $reply_markup = null) {
    $url = "https://api.telegram.org/bot" . API_TOKEN . "/editMessageCaption";
    $data = [
        'chat_id' => $chat_id,
        'message_id' => $message_id,
        'caption' => $caption
    ];
    
    if ($reply_markup) $data['reply_markup'] = json_encode($reply_markup);
    
    return send_telegram_request($url, $data);
}

function answer_callback_query($callback_query_id, $text = null, $show_alert = false) {
    $url = "https://api.telegram.org/bot" . API_TOKEN . "/answerCallbackQuery";
    $data = ['callback_query_id' => $callback_query_id];
    
    if ($text) $data['text'] = $text;
    if ($show_alert) $data['show_alert'] = true;
    
    return send_telegram_request($url, $data);
}

function send_telegram_request($url, $data) {
    $options = [
        'http' => [
            'header' => "Content-type: application/x-www-form-urlencoded\r\n",
            'method' => 'POST',
            'content' => http_build_query($data),
            'timeout' => 10
        ]
    ];
    $context = stream_context_create($options);
    $result = @file_get_contents($url, false, $context);
    return $result ? json_decode($result, true) : false;
}

// Tugma tuzilmalari
function get_reply_keyboard($username = "") {
    global $buttons;
    $is_admin = in_array($username, ADMINS);
    
    $kb = [
        [["text" => "👁 1k"], ["text" => "👁 5k"], ["text" => "👁 10k"]],
        [["text" => "🔢 Ko'rishlar sonini kiritish"], ["text" => "👬 Referal"]],
        [["text" => "💳 Xarid qilish"], ["text" => "💰 Balans"]],
        [["text" => "🎬 Video darslik"], ["text" => "🎟 Promokod"]],
        [["text" => "📞 Adminga murojaat"]]
    ];
    
    foreach ($buttons as $title => $btn) {
        $kb[] = [["text" => $title]];
    }
    
    if ($is_admin) {
        $kb[] = [["text" => "📋 Tugmalar ro'yxati"], ["text" => "⚙️ Admin panel"]];
        $kb[] = [["text" => "📊 Statistika"]];
    }
    
    return ["keyboard" => $kb, "resize_keyboard" => true];
}

function get_xarid_keyboard() {
    $kb = [
        [["text" => "🛒 1K sotib olish"], ["text" => "🛒 5K sotib olish"], ["text" => "🛒 10K sotib olish"]],
        [["text" => "🔢 Ko'rish sonini kiritish 💰"], ["text" => "❌ Bekor qilish"]]
    ];
    return ["keyboard" => $kb, "resize_keyboard" => true];
}

function get_admin_keyboard() {
    $kb = [
        [["text" => "➕ Kanal qo'shish"], ["text" => "❌ Kanal o'chirish"]],
        [["text" => "🆕 Tugma qo'shish"], ["text" => "🗑 Tugma o'chirish"]],
        [["text" => "🎬 Video darslik qo'shish"], ["text" => "🗑 Video o'chirish"]],
        [["text" => "🎟 Promokod qo'shish"], ["text" => "📋 Promokodlar"]],
        [["text" => "📋 Tugmalar ro'yxati"], ["text" => "📢 Reklama tarqatish"]],
        [["text" => "👤 Adminga murojaat sozlash"], ["text" => "🗑 Promokod o'chirish"]],
        [["text" => "📊 Statistika"], ["text" => "⬅️ Ortga"]]
    ];
    return ["keyboard" => $kb, "resize_keyboard" => true];
}

function create_purchase_kb($views) {
    return [
        "inline_keyboard" => [
            [["text" => "🛒 Xarid qilish", "callback_data" => "buy_paid_" . $views]]
        ]
    ];
}

function make_free_scheme_kb() {
    return [
        "inline_keyboard" => [
            [["text" => "🎬 Videoni ko'rish", "callback_data" => "free_video"]],
            [["text" => "👁 Isbot kanali", "url" => "https://t.me/rekchi_tv"]]
        ]
    ];
}

function make_contact_admin_kb() {
    global $config;
    $contact = $config['contact'];
    
    $kb = [
        "inline_keyboard" => [
            [["text" => "📤 Murojaat yuborish", "callback_data" => "start_contact"]],
            [["text" => "👁 Isbot kanali", "url" => "https://t.me/rekchi_tv"]],
            [["text" => "🔎 Kontaktni ko'rsatish", "callback_data" => "show_contact"]]
        ]
    ];
    
    return $kb;
}

function make_subscribe_keyboard($not_subscribed) {
    $rows = [];
    foreach ($not_subscribed as $ch) {
        $label = $ch;
        if (is_string($ch) && strpos($ch, '@') === 0) {
            $url = "https://t.me/" . substr($ch, 1);
        } else {
            $url = "https://t.me/" . $ch;
        }
        $rows[] = [["text" => $label, "url" => $url]];
    }
    $rows[] = [["text" => "✅ Obuna bo'ldim", "callback_data" => "check_sub"]];
    return ["inline_keyboard" => $rows];
}

// Asosiy handler
$input = file_get_contents("php://input");
$update = json_decode($input, true);

if (!$update) {
    exit;
}

// Message yoki Callback Query ni aniqlash
$message = isset($update['message']) ? $update['message'] : null;
$callback_query = isset($update['callback_query']) ? $update['callback_query'] : null;

if ($message) {
    $chat_id = $message['chat']['id'];
    $user_id = $message['from']['id'];
    $username = isset($message['from']['username']) ? $message['from']['username'] : "";
    $text = isset($message['text']) ? $message['text'] : "";
    $uid = strval($user_id);
    
    // Foydalanuvchini yaratish/yangilash
    if (!isset($users[$uid])) {
        $users[$uid] = [
            "refs" => [],
            "confirmed" => false,
            "captcha" => "",
            "hashtags" => [],
            "await_video" => false,
            "views" => 0,
            "username" => $username,
            "balance" => 0,
            "intro_video_sent" => false,
            "bonus_refs" => 0,
            "ref_of" => null
        ];
    } else {
        $users[$uid]["username"] = $username;
    }
    
    // User state ni olish
    $user_state_data = get_user_state($uid);
    $user_state = $user_state_data ? $user_state_data['state'] : null;
    
    // /start commandasi
    if (strpos($text, '/start') === 0) {
        $parts = explode(' ', $text);
        $ref = count($parts) > 1 ? $parts[1] : null;
        
        // Referalni qo'shish
        if ($ref && $ref != $uid && !isset($users[$uid]["ref_of"])) {
            $users[$uid]["ref_of"] = $ref;
            if (isset($users[$ref]) && !in_array($uid, $users[$ref]["refs"])) {
                $users[$ref]["refs"][] = $uid;
            }
        }
        
        save_json(USERS_FILE, $users);
        
        $c = generate_captcha();
        $users[$uid]["captcha"] = strval($c);
        save_json(USERS_FILE, $users);
        
        // State ni o'rnatish
        set_user_state($uid, "waiting_for_captcha");
        
        bot_sendMessage($chat_id, "🤖 Botdan foydalanish uchun kodni kiriting:\n<b>{$c}</b>", null, "HTML");
        exit;
    }
    
    // BEKOR QILISH va ORTGA tugmalari
    if ($text == "❌ Bekor qilish" || $text == "⬅️ Ortga") {
        clear_user_state($uid);
        bot_sendMessage($chat_id, "Bekor qilindi. Asosiy menyu:", get_reply_keyboard($username));
        exit;
    }
    
    // CAPTCHA tekshirish - STATE asosida
    if ($user_state == "waiting_for_captcha") {
        if ($text == $users[$uid]["captcha"]) {
            $users[$uid]["confirmed"] = true;
            save_json(USERS_FILE, $users);
            clear_user_state($uid);
            
            // Intro video yuborish
            if (!empty($videos) && !$users[$uid]["intro_video_sent"]) {
                $first_video = array_key_first($videos);
                $meta = $videos[$first_video];
                bot_sendVideo($chat_id, $first_video, "🎬 {$meta['title']}\n{$meta['desc']}");
                $users[$uid]["intro_video_sent"] = true;
                save_json(USERS_FILE, $users);
            }
            
            bot_sendMessage($chat_id, "✅ Tasdiqlandi! Endi botdan foydalanishingiz mumkin.", get_reply_keyboard($username));
        } else {
            $c = generate_captcha();
            $users[$uid]["captcha"] = strval($c);
            save_json(USERS_FILE, $users);
            bot_sendMessage($chat_id, "❌ Kod noto'g'ri! Yangi kod:\n<b>{$c}</b>", null, "HTML");
        }
        exit;
    }
    
    // Foydalanuvchi tasdiqlanmagan bo'lsa
    if (!$users[$uid]["confirmed"]) {
        $c = generate_captcha();
        $users[$uid]["captcha"] = strval($c);
        save_json(USERS_FILE, $users);
        set_user_state($uid, "waiting_for_captcha");
        bot_sendMessage($chat_id, "🤖 Botdan foydalanish uchun kodni kiriting:\n<b>{$c}</b>", null, "HTML");
        exit;
    }
    
    // STATE lar asosida xabarlarni qayta ishlash
    switch ($user_state) {
        case "waiting_for_purchase_views":
            if (is_numeric($text)) {
                $views = intval($text);
                $price = calculate_price($views);
                if ($price == -1 || $views < 1000) {
                    bot_sendMessage($chat_id, "❌ Kamida 1000 ko'rish bo'lishi kerak!", get_xarid_keyboard());
                } else {
                    bot_sendMessage($chat_id, 
                        "🛒 {$views} ta ko'rish narxi: <b>{$price}</b> so'm", 
                        create_purchase_kb($views), "HTML");
                }
                clear_user_state($uid);
            } else {
                bot_sendMessage($chat_id, "🔢 Faqat son kiriting! Masalan: 15000", get_xarid_keyboard());
            }
            exit;
            
        case "waiting_for_views":
            if (is_numeric($text)) {
                $views = intval($text);
                
                // Minimal ko'rishlar tekshiruvi
                if ($views < 1000) {
                    bot_sendMessage($chat_id, "❌ Minimal ko'rishlar soni: 1000 ta", get_reply_keyboard($username));
                    clear_user_state($uid);
                    exit;
                }
                
                $valid_count = get_valid_ref_count($uid);
                $refs_needed = referal_count_by_views($views);
                
                if ($valid_count < $refs_needed) {
                    bot_sendMessage($chat_id, 
                        "⚠️ {$views} ta ko'rish uchun {$refs_needed} ta tasdiqlangan referal kerak.\n\n" .
                        "💰 Sizda hozir: {$valid_count} ta tasdiqlangan referal bor.\n" .
                        "🎁 Qanday bepul sxema olish mumkin: Videoni ko'ring 👇",
                        make_free_scheme_kb());
                    clear_user_state($uid);
                } else {
                    $hs = get_hashtags($views);
                    $users[$uid]["hashtags"] = $hs;
                    $users[$uid]["await_video"] = true;
                    $users[$uid]["views"] = $views;
                    $users[$uid]["used_ref_for_views"] = true;
                    save_json(USERS_FILE, $users);
                    
                    $ht = implode("\n", $hs);
                    bot_sendMessage($chat_id, 
                        "✅ Referallaringizdan {$refs_needed} tasi ishlatiladi.\n\n" .
                        "🎯 {$views} ta ko'rish uchun mos heshteglar:\n<pre>{$ht}</pre>\n\n" .
                        "📋 Nusxalash uchun ustiga bosing.\n📹 Endi video havolasini yuboring:",
                        get_reply_keyboard($username), "HTML");
                    set_user_state($uid, "waiting_for_video_link");
                }
            } else {
                bot_sendMessage($chat_id, 
                    "🔢 Faqat son kiriting! Masalan: 15000\n" .
                    "❗ Minimal: 1000 ta ko'rish", 
                    get_reply_keyboard($username));
            }
            exit;
            
        case "waiting_for_video_link":
            if (strpos($text, 'http') === 0) {
                $views = $users[$uid]["views"];
                
                // Buyurtma qabul qilish
                $order_id = rand(100000, 999999);
                $orders[$order_id] = [
                    "user_id" => $uid,
                    "username" => $username,
                    "link" => $text,
                    "views" => $views,
                    "created_at" => date('c'),
                    "status" => "active"
                ];
                save_json(ORDERS_FILE, $orders);
                
                // Isbot kanaliga xabar yuborish
                $proof_msg = "📌 Yangi buyurtma qabul qilindi\n" .
                           "Foydalanuvchi: @" . ($username ?: $uid) . " (ID: {$uid})\n" .
                           "Order ID: {$order_id}\n" .
                           "Link: {$text}\n" .
                           "Talab qilingan ko'rishlar: {$views}\n" .
                           "Vaqt: " . date('Y-m-d H:i:s');
                
                $proof_kb = [
                    "inline_keyboard" => [
                        [["text" => "🎬 Video ko'rish", "url" => $text]],
                        [
                            ["text" => "👤 Foydalanuvchi", "callback_data" => "user_{$uid}"],
                            ["text" => "👁 Isbot kanali", "url" => "https://t.me/rekchi_tv"]
                        ]
                    ]
                ];
                
                bot_sendMessage(PROOF_CHANNEL, $proof_msg, $proof_kb);
                
                bot_sendMessage($chat_id, 
                    "✅ Buyurtma qabul qilindi!\nID: <code>{$order_id}</code>\nKo'rishlar: <b>{$views}</b>\nVideo: {$text}",
                    get_reply_keyboard($username), "HTML");
                
                $users[$uid]["await_video"] = false;
                $users[$uid]["hashtags"] = [];
                $users[$uid]["views"] = 0;
                $users[$uid]["used_ref_for_views"] = false;
                save_json(USERS_FILE, $users);
                clear_user_state($uid);
            } else {
                bot_sendMessage($chat_id, "❗ Faqat video havolasini yuboring!", get_reply_keyboard($username));
            }
            exit;
            
        case "waiting_for_topup":
            if (is_numeric($text)) {
                $amount = intval($text);
                if ($amount < 1000) {
                    bot_sendMessage($chat_id, "💳 Minimal to'ldirish miqdori: 1000 so'm!");
                } else {
                    set_user_state($uid, "waiting_for_topup_receipt", ['amount' => $amount]);
                    $kb = [
                        "inline_keyboard" => [
                            [["text" => "📋 Kartani nusxalash", "callback_data" => "copy_card"]],
                            [["text" => "📤 To'lov chekini yuborish", "callback_data" => "upload_receipt"]],
                            [["text" => "❌ Bekor qilish", "callback_data" => "cancel_topup"]]
                        ]
                    ];
                    
                    bot_sendMessage($chat_id, 
                        "💳 Pulni quyidagi karta raqamiga o'tkazing:\n<b>" . TOPUP_CARD_NUMBER . "</b>\n" .
                        "🔔 O'tkazma summasi: <b>" . number_format($amount) . " so'm</b>\n" .
                        "1) Kartaga pul o'tkazing.\n" .
                        "2) To'lov chekini (skrinshot / foto / PDF) pastdan yuboring.\n" .
                        "3) Admin tekshiradi va tasdiqlasa balansga mablag' qo'shiladi.",
                        $kb, "HTML");
                }
            } else {
                bot_sendMessage($chat_id, "💳 Iltimos, faqat son kiriting! Masalan: 10000");
            }
            exit;
            
        case "waiting_for_topup_receipt":
            $amount = get_state_data($uid, 'amount');
            if ($amount === null) {
                bot_sendMessage($chat_id, "❗ To'lov miqdori topilmadi. Iltimos, qaytadan boshlang.", get_reply_keyboard($username));
                clear_user_state($uid);
                exit;
            }

            $caption = "🔔 To'lov fayli\n" .
                       "Foydalanuvchi: @" . ($username ?: $uid) . "\n" .
                       "ID: {$uid}\n" .
                       "Summasi: " . number_format($amount) . " so'm\n" .
                       "Admin: tasdiqlang yoki bekor qiling.";

            $kb = [
                "inline_keyboard" => [
                    [
                        ["text" => "✅ Tasdiqlash", "callback_data" => "approve_topup|{$uid}|{$amount}"],
                        ["text" => "❌ Bekor qilish", "callback_data" => "reject_topup|{$uid}|{$amount}"]
                    ]
                ]
            ];

            $sent = false;
            $message_result = null;
            
            // Rasm yuborilgan bo'lsa
            if (isset($message['photo'])) {
                $photo = $message['photo'][count($message['photo'])-1]['file_id'];
                $message_result = bot_sendPhoto(RECEIPT_CHANNEL, $photo, $caption, $kb);
                $sent = $message_result && $message_result['ok'];
            }
            // Dokument yuborilgan bo'lsa
            elseif (isset($message['document'])) {
                $document = $message['document']['file_id'];
                $message_result = bot_sendDocument(RECEIPT_CHANNEL, $document, $caption, $kb);
                $sent = $message_result && $message_result['ok'];
            }
            // Matn yuborilgan bo'lsa
            elseif ($text) {
                $message_result = bot_sendMessage(RECEIPT_CHANNEL, $caption . "\n\nFoydalanuvchi xabari:\n" . $text, $kb);
                $sent = $message_result && $message_result['ok'];
            }

            if ($sent) {
                bot_sendMessage($chat_id, "✅ Chek yuborildi! Administratsiya tekshiradi. Sizga xabar keladi.", get_reply_keyboard($username));
            } else {
                bot_sendMessage($chat_id, "❗ Chekni yuborishda xatolik yuz berdi. Iltimos, admin bilan bog'laning.", get_reply_keyboard($username));
                
                // Adminlarga xabar yuborish
                foreach (ADMINS as $admin) {
                    bot_sendMessage("@" . $admin, "❌ To'lov chekini yuborishda xatolik!\nFoydalanuvchi: @{$username}\nID: {$uid}\nSumma: " . number_format($amount) . " so'm");
                }
            }
            
            clear_user_state($uid);
            exit;
            
        case "waiting_for_promocode":
            $code = strtoupper(trim($text));
            if (isset($promocodes[$code])) {
                $pc = $promocodes[$code];
                $used_by = isset($pc['used_by']) ? $pc['used_by'] : [];
                $total_used = array_sum($used_by);
                
                if (isset($used_by[$uid])) {
                    bot_sendMessage($chat_id, "❌ Siz bu promokoddan allaqachon foydalangansiz!", get_reply_keyboard($username));
                } elseif (count($used_by) >= $pc['limit']) {
                    bot_sendMessage($chat_id, "❌ Ushbu promokodning foydalanuvchi limiti tugagan!", get_reply_keyboard($username));
                } elseif ($total_used >= $pc['amount']) {
                    bot_sendMessage($chat_id, "❌ Ushbu promokodning bonus miqdori tugagan!", get_reply_keyboard($username));
                } else {
                    $remaining = $pc['amount'] - $total_used;
                    
                    if ($pc['type'] == 'views') {
                        $give = min(1000, $remaining);
                        $users[$uid]["hashtags"] = get_hashtags($give);
                        $users[$uid]["await_video"] = true;
                        $users[$uid]["views"] = $give;
                        $used_by[$uid] = $give;
                        $promocodes[$code]['used_by'] = $used_by;
                        save_json(PROMOCODES_FILE, $promocodes);
                        
                        $ht = implode("\n", get_hashtags($give));
                        bot_sendMessage($chat_id, 
                            "🎉 Siz <b>{$code}</b> promokodidan foydalandingiz!\n" .
                            "✅ {$give} ta ko'rish berildi.\n" .
                            "🎯 Heshteglar:\n<pre>{$ht}</pre>\n" .
                            "📹 Endi video havolasini yuboring:",
                            null, "HTML");
                        set_user_state($uid, "waiting_for_video_link");
                        
                    } elseif ($pc['type'] == 'balance') {
                        $give = min(1000000000, $remaining);
                        $users[$uid]["balance"] += $give;
                        $used_by[$uid] = $give;
                        $promocodes[$code]['used_by'] = $used_by;
                        save_json(PROMOCODES_FILE, $promocodes);
                        save_json(USERS_FILE, $users);
                        
                        bot_sendMessage($chat_id, "🎉 {$give} so'm balansga qo'shildi!", get_reply_keyboard($username));
                        clear_user_state($uid);
                        
                    } elseif ($pc['type'] == 'referral') {
                        $users[$uid]["bonus_refs"] = isset($users[$uid]["bonus_refs"]) ? $users[$uid]["bonus_refs"] + 1 : 1;
                        $used_by[$uid] = 1;
                        $promocodes[$code]['used_by'] = $used_by;
                        save_json(PROMOCODES_FILE, $promocodes);
                        save_json(USERS_FILE, $users);
                        
                        bot_sendMessage($chat_id, "🎉 1ta referal bonus sifatida berildi", get_reply_keyboard($username));
                        clear_user_state($uid);
                    }
                }
            } else {
                bot_sendMessage($chat_id, "❌ Bunday promokod mavjud emas!", get_reply_keyboard($username));
                clear_user_state($uid);
            }
            exit;
            
        // Admin state lar
        case "admin_await_channel":
            $channel = trim($text);
            if ($channel) {
                if (!in_array($channel, $config['channels'])) {
                    $config['channels'][] = $channel;
                    save_json(CONFIG_FILE, $config);
                    bot_sendMessage($chat_id, "✅ Kanal qo'shildi: {$channel}", get_admin_keyboard());
                } else {
                    bot_sendMessage($chat_id, "❗ Bu kanal allaqachon ro'yxatda bor.", get_admin_keyboard());
                }
            }
            clear_user_state($uid);
            exit;
            
        case "admin_await_remove_channel":
            $channel = trim($text);
            if (in_array($channel, $config['channels'])) {
                $config['channels'] = array_diff($config['channels'], [$channel]);
                save_json(CONFIG_FILE, $config);
                bot_sendMessage($chat_id, "✅ Kanal o'chirildi: {$channel}", get_admin_keyboard());
            } else {
                bot_sendMessage($chat_id, "❌ Kanal topilmadi.", get_admin_keyboard());
            }
            clear_user_state($uid);
            exit;
            
        case "admin_await_button_title":
            $title = trim($text);
            if (isset($buttons[$title])) {
                bot_sendMessage($chat_id, "❗ Bu tugma allaqachon mavjud.", get_admin_keyboard());
                clear_user_state($uid);
            } else {
                set_user_state($uid, "admin_await_button_msg", ['title' => $title]);
                bot_sendMessage($chat_id, "Tugma uchun xabarni kiriting:");
            }
            exit;
            
        case "admin_await_button_msg":
            $title = get_state_data($uid, 'title');
            $msg_text = trim($text);
            if ($title) {
                $buttons[$title] = ["msg" => $msg_text];
                save_json(BUTTONS_FILE, $buttons);
                bot_sendMessage($chat_id, "✅ Tugma qo'shildi: {$title}", get_admin_keyboard());
            }
            clear_user_state($uid);
            exit;
            
        case "admin_await_remove_button":
            $title = trim($text);
            if (isset($buttons[$title])) {
                unset($buttons[$title]);
                save_json(BUTTONS_FILE, $buttons);
                bot_sendMessage($chat_id, "✅ Tugma o'chirildi: {$title}", get_admin_keyboard());
            } else {
                bot_sendMessage($chat_id, "❌ Tugma topilmadi.", get_admin_keyboard());
            }
            clear_user_state($uid);
            exit;
            
        case "admin_await_video_title":
            $title = trim($text);
            set_user_state($uid, "admin_await_video_file", ['title' => $title]);
            bot_sendMessage($chat_id, "Video faylini yuboring (.mp4):");
            exit;
            
        case "admin_await_video_file":
            if (isset($message['video'])) {
                $title = get_state_data($uid, 'title');
                $file_id = $message['video']['file_id'];
                $videos[$file_id] = [
                    "title" => $title,
                    "desc" => $message['caption'] ?? "",
                    "file_id" => $file_id
                ];
                save_json(VIDEOS_META, $videos);
                bot_sendMessage($chat_id, "✅ Video darslik qo'shildi: {$title}", get_admin_keyboard());
            } else {
                bot_sendMessage($chat_id, "❗ Faqat video fayl yuboring!", get_admin_keyboard());
            }
            clear_user_state($uid);
            exit;
            
        case "admin_await_remove_video":
            $title = trim($text);
            $found = null;
            foreach ($videos as $vid_id => $meta) {
                if (is_array($meta) && isset($meta['title']) && $meta['title'] == $title) {
                    $found = $vid_id;
                    break;
                }
            }
            if ($found) {
                unset($videos[$found]);
                save_json(VIDEOS_META, $videos);
                bot_sendMessage($chat_id, "✅ Video o'chirildi: {$title}", get_admin_keyboard());
            } else {
                bot_sendMessage($chat_id, "❌ Video topilmadi.", get_admin_keyboard());
            }
            clear_user_state($uid);
            exit;
            
        case "admin_await_remove_promocode":
            $code = strtoupper(trim($text));
            if (isset($promocodes[$code])) {
                unset($promocodes[$code]);
                save_json(PROMOCODES_FILE, $promocodes);
                bot_sendMessage($chat_id, "✅ Promokod o'chirildi: {$code}", get_admin_keyboard());
            } else {
                bot_sendMessage($chat_id, "❌ Bunday promokod yo'q.", get_admin_keyboard());
            }
            clear_user_state($uid);
            exit;
            
        case "admin_await_contact":
            $contact = trim($text);
            if ($contact) {
                $config['contact'] = $contact;
                save_json(CONFIG_FILE, $config);
                bot_sendMessage($chat_id, "✅ Admin kontakt saqlandi: {$contact}", get_admin_keyboard());
            }
            clear_user_state($uid);
            exit;
            
        case "admin_await_broadcast":
            $broadcast_text = $text;
            $sent = 0;
            $failed = 0;
            
            foreach ($users as $user_id => $user_data) {
                if (isset($user_data['confirmed']) && $user_data['confirmed']) {
                    $result = bot_sendMessage($user_id, $broadcast_text);
                    if ($result && $result['ok']) {
                        $sent++;
                    } else {
                        $failed++;
                    }
                }
            }
            
            bot_sendMessage($chat_id, "✅ Reklama tarqatildi!\nYuborildi: {$sent}\nXato: {$failed}", get_admin_keyboard());
            clear_user_state($uid);
            exit;
            
        case "admin_await_promocode_name":
            $name = strtoupper(trim($text));
            if (isset($promocodes[$name])) {
                bot_sendMessage($chat_id, "❗ Bunday promokod allaqachon mavjud.", get_admin_keyboard());
                clear_user_state($uid);
            } else {
                set_user_state($uid, "admin_await_promocode_type", ['name' => $name]);
                bot_sendMessage($chat_id, "Bonus turini tanlang:", 
                    ["keyboard" => [
                        [["text" => "views"]],
                        [["text" => "balance"]], 
                        [["text" => "referral"]]
                    ], "resize_keyboard" => true]
                );
            }
            exit;
            
        case "admin_await_promocode_type":
            if (in_array($text, ['views', 'balance', 'referral'])) {
                set_user_state($uid, "admin_await_promocode_amount", [
                    'name' => get_state_data($uid, 'name'),
                    'type' => $text
                ]);
                bot_sendMessage($chat_id, "Umumiy miqdorni kiriting (masalan: 10000):");
            } else {
                bot_sendMessage($chat_id, "❌ Noto'g'ri tur. views / balance / referral kiriting.");
            }
            exit;
            
        case "admin_await_promocode_amount":
            if (is_numeric($text)) {
                set_user_state($uid, "admin_await_promocode_limit", [
                    'name' => get_state_data($uid, 'name'),
                    'type' => get_state_data($uid, 'type'),
                    'amount' => intval($text)
                ]);
                bot_sendMessage($chat_id, "Foydalanish limitini kiriting (nechta odam):");
            } else {
                bot_sendMessage($chat_id, "❗ Faqat son kiriting.");
            }
            exit;
            
        case "admin_await_promocode_limit":
            if (is_numeric($text)) {
                $data = get_state_data($uid);
                $promocodes[$data['name']] = [
                    "type" => $data['type'],
                    "amount" => $data['amount'],
                    "limit" => intval($text),
                    "used_by" => []
                ];
                save_json(PROMOCODES_FILE, $promocodes);
                
                bot_sendMessage($chat_id, 
                    "✅ Promokod qo'shildi!\nKod: <b>{$data['name']}</b>\nTur: {$data['type']}\nMiqdor: {$data['amount']}\nLimit: {$text} ta", 
                    get_admin_keyboard(), "HTML"
                );
            } else {
                bot_sendMessage($chat_id, "❗ Faqat son kiriting.");
            }
            clear_user_state($uid);
            exit;
    }
    
    // Asosiy tugmalarni boshqarish - AVVAL STATE TOZALASH
    if (in_array($text, [
        "👁 1k", "👁 5k", "👁 10k", "💳 Xarid qilish", "💰 Balans", 
        "🎬 Video darslik", "🎟 Promokod", "📞 Adminga murojaat",
        "📋 Tugmalar ro'yxati", "📊 Statistika", "⚙️ Admin panel"
    ])) {
        clear_user_state($uid);
    }
    
    // Asosiy tugmalarni boshqarish
    switch ($text) {
        case "👁 1k":
            $valid_count = get_valid_ref_count($uid);
            if ($valid_count >= 1) {
                $hs = get_hashtags(1000);
                $users[$uid]["hashtags"] = $hs;
                $users[$uid]["await_video"] = true;
                $users[$uid]["views"] = 1000;
                $users[$uid]["used_ref_for_views"] = true;
                save_json(USERS_FILE, $users);
                
                $ht = implode("\n", $hs);
                bot_sendMessage($chat_id, 
                    "Referallaringizdan 1 tasi ishlatiladi.\n" .
                    "🎯 1k ko'rish uchun mos heshteglar:\n<pre>{$ht}</pre>\n" .
                    "📋 Nusxalash uchun ustiga bosing.\n📹 Endi video havolasini yuboring:",
                    get_reply_keyboard($username), "HTML");
                set_user_state($uid, "waiting_for_video_link");
            } else {
                bot_sendMessage($chat_id, 
                    "⚠️ 1K ko'rish uchun 1 ta tasdiqlangan referal kerak.\n🎁 Qanday bepul sxema olish mumkin: Videoni ko'ring 👇",
                    make_free_scheme_kb());
            }
            break;
            
        case "👁 5k":
            $valid_count = get_valid_ref_count($uid);
            if ($valid_count >= 3) {
                $hs = get_hashtags(5000);
                $users[$uid]["hashtags"] = $hs;
                $users[$uid]["await_video"] = true;
                $users[$uid]["views"] = 5000;
                $users[$uid]["used_ref_for_views"] = true;
                save_json(USERS_FILE, $users);
                
                $ht = implode("\n", $hs);
                bot_sendMessage($chat_id, 
                    "Referallaringizdan 3 tasi ishlatiladi.\n" .
                    "🎯 5k ko'rish uchun mos heshteglar:\n<pre>{$ht}</pre>\n" .
                    "📋 Nusxalash uchun ustiga bosing.\n📹 Endi video havolasini yuboring:",
                    get_reply_keyboard($username), "HTML");
                set_user_state($uid, "waiting_for_video_link");
            } else {
                bot_sendMessage($chat_id, 
                    "⚠️ 5K ko'rish uchun 3 ta tasdiqlangan referal kerak.\n🎁 Qanday bepul sxema olish mumkin: Videoni ko'ring 👇",
                    make_free_scheme_kb());
            }
            break;
            
        case "👁 10k":
            $valid_count = get_valid_ref_count($uid);
            if ($valid_count >= 5) {
                $hs = get_hashtags(10000);
                $users[$uid]["hashtags"] = $hs;
                $users[$uid]["await_video"] = true;
                $users[$uid]["views"] = 10000;
                $users[$uid]["used_ref_for_views"] = true;
                save_json(USERS_FILE, $users);
                
                $ht = implode("\n", $hs);
                bot_sendMessage($chat_id, 
                    "Referallaringizdan 5 tasi ishlatiladi.\n" .
                    "🎯 10k ko'rish uchun mos heshteglar:\n<pre>{$ht}</pre>\n" .
                    "📋 Nusxalash uchun ustiga bosing.\n📹 Endi video havolasini yuboring:",
                    get_reply_keyboard($username), "HTML");
                set_user_state($uid, "waiting_for_video_link");
            } else {
                bot_sendMessage($chat_id, 
                    "⚠️ 10K ko'rish uchun 5 ta tasdiqlangan referal kerak.\n🎁 Qanday bepul sxema olish mumkin: Videoni ko'ring 👇",
                    make_free_scheme_kb());
            }
            break;
            
        case "🔢 Ko'rishlar sonini kiritish":
            bot_sendMessage($chat_id, "Kerakli ko'rishlar sonini kiriting (masalan: 25000):", get_reply_keyboard($username));
            set_user_state($uid, "waiting_for_views");
            break;
            
        case "💳 Xarid qilish":
            bot_sendMessage($chat_id, "🛒 Xarid qilish uchun quyidagilardan birini tanlang:", get_xarid_keyboard());
            break;
            
        case "🔢 Ko'rish sonini kiritish 💰":
            bot_sendMessage($chat_id, "Necha ko'rish sotib olmoqchisiz? (faqat raqam kiriting, minimal: 1000):");
            set_user_state($uid, "waiting_for_purchase_views");
            break;
            
        case "🛒 1K sotib olish":
            $price = calculate_price(1000);
            bot_sendMessage($chat_id, "🛒 1K ko'rish narxi: <b>{$price}</b> so'm", create_purchase_kb(1000), "HTML");
            break;
            
        case "🛒 5K sotib olish":
            $price = calculate_price(5000);
            bot_sendMessage($chat_id, "🛒 5K ko'rish narxi: <b>{$price}</b> so'm", create_purchase_kb(5000), "HTML");
            break;
            
        case "🛒 10K sotib olish":
            $price = calculate_price(10000);
            bot_sendMessage($chat_id, "🛒 10K ko'rish narxi: <b>{$price}</b> so'm", create_purchase_kb(10000), "HTML");
            break;
            
        case "💰 Balans":
            $balance = $users[$uid]["balance"];
            $kb = [
                "inline_keyboard" => [
                    [["text" => "💳 Balansni to'ldirish", "callback_data" => "topup_balance"]]
                ]
            ];
            bot_sendMessage($chat_id, 
                "💰 Sizning balansingiz: <b>{$balance} so'm</b>\n" .
                "👇 Balansni to'ldirish uchun pastdagi tugmani bosing:",
                $kb, "HTML");
            break;
            
        case "👬 Referal":
            $confirmed_refs = array_filter($users[$uid]["refs"], function($ref) use ($users) {
                return isset($users[$ref]['confirmed']) && $users[$ref]['confirmed'];
            });
            $bonus = $users[$uid]["bonus_refs"] ?? 0;
            $count = count($confirmed_refs) + $bonus;
            $ref_link = "https://t.me/" . BOT_USERNAME . "?start=" . $uid;
            
            $share_text = "👆Bu suniy intelekt sizni instagramdagi videolaringizni mutlaqo bepul rekka chiqarib beradi.";
            $encoded_text = urlencode($share_text . "\n" . $ref_link);
            $encoded_url = urlencode($ref_link);
            $url = "https://t.me/share/url?url={$encoded_url}&text={$encoded_text}";
            
            $kb = [
                "inline_keyboard" => [
                    [["text" => "📤 Do'stlarga taklif qilish", "url" => $url]]
                ]
            ];
            
            bot_sendMessage($chat_id, 
                "👬 Sizda hozirda <b>{$count}</b> ta tasdiqlangan referal mavjud.\n" .
                "🔗 Sizning shaxsiy havolangiz:\n<code>{$ref_link}</code>\n" .
                "📤 Do'stlaringizga taklif qilish uchun pastdagi tugmani bosing 👇",
                $kb, "HTML");
            break;
            
        case "🎟 Promokod":
            bot_sendMessage($chat_id, "🎟 Promokodingizni kiriting:");
            set_user_state($uid, "waiting_for_promocode");
            break;
            
        case "📞 Adminga murojaat":
            $contact = $config['contact'] ?: "Hozircha kontakt belgilanmagan.";
            bot_sendMessage($chat_id, 
                "Adminga murojaat qilish:\nKontakt: {$contact}",
                make_contact_admin_kb());
            break;
            
        case "🎬 Video darslik":
            if (empty($videos)) {
                bot_sendMessage($chat_id, "🎬 Video darsliklar hozircha yo'q.", get_reply_keyboard($username));
            } else {
                $video_list = [];
                $kb = [];
                $index = 0;
                foreach ($videos as $video_id => $meta) {
                    if (is_array($meta)) {
                        $video_list[] = $video_id;
                        $kb[] = [["text" => $meta['title'], "callback_data" => "v{$index}"]];
                    }
                    $index++;
                }
                set_user_state($uid, "video_list", ['videos' => $video_list]);
                $kb_markup = ["inline_keyboard" => $kb];
                bot_sendMessage($chat_id, "🎬 Video darsliklar ro'yxati:", $kb_markup);
            }
            break;
            
        case "📋 Tugmalar ro'yxati":
            if (empty($buttons)) {
                bot_sendMessage($chat_id, "❗ Tugma ro'yxati bo'sh.", get_reply_keyboard($username));
            } else {
                $msg = "📋 Tugmalar ro'yxati:\n";
                foreach ($buttons as $key => $btn) {
                    if (is_array($btn)) {
                        $msg .= "\n{$key}: {$btn['msg']}";
                    }
                }
                bot_sendMessage($chat_id, $msg, get_reply_keyboard($username));
            }
            break;
            
        case "📊 Statistika":
            if (in_array($username, ADMINS)) {
                $total = count($users);
                $confirmed = 0;
                $referred_in = 0;
                $referrers = 0;
                
                foreach ($users as $user) {
                    if (isset($user['confirmed']) && $user['confirmed']) {
                        $confirmed++;
                    }
                    if (isset($user['ref_of']) && $user['ref_of']) {
                        $referred_in++;
                    }
                    if (isset($user['refs']) && !empty($user['refs'])) {
                        $referrers++;
                    }
                }
                
                $msg = "📊 <b>Bot statistikasi</b>\n\n" .
                      "👥 Jami: <b>{$total}</b>\n" .
                      "✅ Tasdiqlangan: <b>{$confirmed}</b>\n" .
                      "📥 Referal orqali kirgan: <b>{$referred_in}</b>\n" .
                      "📤 Referal yig'gan: <b>{$referrers}</b>";
                bot_sendMessage($chat_id, $msg, null, "HTML");
            } else {
                bot_sendMessage($chat_id, "Siz admin emassiz!", get_reply_keyboard($username));
            }
            break;
            
        case "⚙️ Admin panel":
            if (in_array($username, ADMINS)) {
                bot_sendMessage($chat_id, "⚙️ Admin panel", get_admin_keyboard());
            } else {
                bot_sendMessage($chat_id, "Siz admin emassiz!", get_reply_keyboard($username));
            }
            break;
            
        // Admin panel tugmalari
        case "➕ Kanal qo'shish":
            if (in_array($username, ADMINS)) {
                bot_sendMessage($chat_id, "Kanal username (@kanal_nomi) yoki ID ni kiriting:");
                set_user_state($uid, "admin_await_channel");
            }
            break;
            
        case "❌ Kanal o'chirish":
            if (in_array($username, ADMINS)) {
                $channels = $config['channels'];
                if (empty($channels)) {
                    bot_sendMessage($chat_id, "❗ Kanal ro'yxati bo'sh.", get_admin_keyboard());
                } else {
                    $msg = "O'chirish uchun kanalni tanlang:\n" . implode("\n", $channels);
                    bot_sendMessage($chat_id, $msg);
                    set_user_state($uid, "admin_await_remove_channel");
                }
            }
            break;
            
        case "🆕 Tugma qo'shish":
            if (in_array($username, ADMINS)) {
                bot_sendMessage($chat_id, "Yangi tugma nomini kiriting:");
                set_user_state($uid, "admin_await_button_title");
            }
            break;
            
        case "🗑 Tugma o'chirish":
            if (in_array($username, ADMINS)) {
                if (empty($buttons)) {
                    bot_sendMessage($chat_id, "❗ Tugma ro'yxati bo'sh.", get_admin_keyboard());
                } else {
                    $msg = "O'chirish uchun tugmani tanlang:\n" . implode("\n", array_keys($buttons));
                    bot_sendMessage($chat_id, $msg);
                    set_user_state($uid, "admin_await_remove_button");
                }
            }
            break;
            
        case "🎬 Video darslik qo'shish":
            if (in_array($username, ADMINS)) {
                bot_sendMessage($chat_id, "Video sarlavhasini kiriting:");
                set_user_state($uid, "admin_await_video_title");
            }
            break;
            
        case "🗑 Video o'chirish":
            if (in_array($username, ADMINS)) {
                if (empty($videos)) {
                    bot_sendMessage($chat_id, "❗ Video ro'yxati bo'sh.", get_admin_keyboard());
                } else {
                    $msg = "O'chirish uchun videoni tanlang:\n";
                    foreach ($videos as $vid_id => $meta) {
                        if (is_array($meta)) {
                            $msg .= "📹 {$meta['title']}\n";
                        }
                    }
                    bot_sendMessage($chat_id, $msg . "\nVideo nomini kiriting:");
                    set_user_state($uid, "admin_await_remove_video");
                }
            }
            break;
            
        case "👤 Adminga murojaat sozlash":
            if (in_array($username, ADMINS)) {
                bot_sendMessage($chat_id, "📎 Iltimos adminga murojaat uchun kontaktni kiriting.\nMasalan: @username yoki chat_id (raqam).");
                set_user_state($uid, "admin_await_contact");
            }
            break;
            
        case "📢 Reklama tarqatish":
            if (in_array($username, ADMINS)) {
                bot_sendMessage($chat_id, "Reklama xabarini kiriting:");
                set_user_state($uid, "admin_await_broadcast");
            }
            break;
            
        case "🎟 Promokod qo'shish":
            if (in_array($username, ADMINS)) {
                bot_sendMessage($chat_id, "Promokod nomini kiriting (masalan: YIL2025):");
                set_user_state($uid, "admin_await_promocode_name");
            }
            break;
            
        case "📋 Promokodlar":
            if (in_array($username, ADMINS)) {
                if (empty($promocodes)) {
                    bot_sendMessage($chat_id, "🎟 Promokodlar mavjud emas.", get_admin_keyboard());
                } else {
                    $msg = "🎟 Promokodlar ro'yxati:\n";
                    foreach ($promocodes as $name => $pc) {
                        $used = isset($pc['used_by']) ? array_sum($pc['used_by']) : 0;
                        $msg .= "<b>{$name}</b>\nTur: {$pc['type']}\nMiqdor: {$pc['amount']}\nFoydalangan: {$used}\nLimit: {$pc['limit']} ta\n\n";
                    }
                    bot_sendMessage($chat_id, $msg, get_admin_keyboard(), "HTML");
                }
            }
            break;
            
        case "🗑 Promokod o'chirish":
            if (in_array($username, ADMINS)) {
                if (empty($promocodes)) {
                    bot_sendMessage($chat_id, "🎟 Promokodlar yo'q.", get_admin_keyboard());
                } else {
                    $msg = "O'chirish uchun promokod nomini kiriting:\n" . implode("\n", array_keys($promocodes));
                    bot_sendMessage($chat_id, $msg);
                    set_user_state($uid, "admin_await_remove_promocode");
                }
            }
            break;
            
        default:
            // Maxsus tugmalarni tekshirish
            if (isset($buttons[$text])) {
                bot_sendMessage($chat_id, $buttons[$text]["msg"], get_reply_keyboard($username));
            }
            break;
    }
}

// Callback Query ni boshqarish
if ($callback_query) {
    $chat_id = $callback_query['message']['chat']['id'];
    $user_id = $callback_query['from']['id'];
    $username = isset($callback_query['from']['username']) ? $callback_query['from']['username'] : "";
    $data = $callback_query['data'];
    $message_id = $callback_query['message']['message_id'];
    $callback_query_id = $callback_query['id'];
    $uid = strval($user_id);
    
    // Admin tekshiruvi funksiyasi
    $is_admin = in_array($username, ADMINS);
    
    switch ($data) {
        case "free_video":
            if (!empty($videos)) {
                $first_video = array_key_first($videos);
                $meta = $videos[$first_video];
                bot_sendVideo($chat_id, $first_video, "🎬 {$meta['title']}\n{$meta['desc']}");
                answer_callback_query($callback_query_id, "✅ Video yuborildi!");
            } else {
                answer_callback_query($callback_query_id, "🎬 Video darsliklar mavjud emas!", true);
            }
            break;
            
        case "topup_balance":
            bot_sendMessage($chat_id, "💳 Balansni to'ldirish uchun miqdorni kiriting (so'm):\nMinimal: 1000 so'm");
            set_user_state($uid, "waiting_for_topup");
            answer_callback_query($callback_query_id);
            break;
            
        case "copy_card":
            bot_sendMessage($chat_id, "Karta raqami: <code>" . TOPUP_CARD_NUMBER . "</code>\nUstiga bosib nusxalashingiz mumkin.", null, "HTML");
            answer_callback_query($callback_query_id, "Karta raqami yuborildi!", true);
            break;
            
        case "cancel_topup":
            clear_user_state($uid);
            bot_sendMessage($chat_id, "To'lov bekor qilindi.", get_reply_keyboard($username));
            answer_callback_query($callback_query_id, "To'lov bekor qilindi.");
            break;
            
        case "upload_receipt":
            bot_sendMessage($chat_id, "📤 Iltimos, to'lov chekini (foto yoki PDF) yuboring:");
            answer_callback_query($callback_query_id);
            break;
            
        case "show_contact":
            $contact = $config['contact'];
            if ($contact) {
                answer_callback_query($callback_query_id, "Kontakt: {$contact}", true);
            } else {
                answer_callback_query($callback_query_id, "Kontakt belgilanmagan.", true);
            }
            break;
            
        case "start_contact":
            $contact = $config['contact'];
            if ($contact) {
                if (strpos($contact, '@') === 0) {
                    $url = "https://t.me/" . substr($contact, 1);
                } elseif (is_numeric($contact)) {
                    $url = "https://t.me/" . ADMINS[0];
                } else {
                    $url = "https://t.me/" . ADMINS[0];
                }
            } else {
                $url = "https://t.me/" . ADMINS[0];
            }
            
            $kb = [
                "inline_keyboard" => [
                    [["text" => "👤 Adminga o'tish", "url" => $url]]
                ]
            ];
            bot_editMessageText($chat_id, $message_id, "Siz adminga murojaat qilishingiz mumkin:", $kb);
            answer_callback_query($callback_query_id);
            break;
            
        case "check_sub":
            // Obuna tekshirish (soddalashtirilgan)
            $users[$uid]["confirmed"] = true;
            save_json(USERS_FILE, $users);
            
            if (!empty($videos) && !$users[$uid]["intro_video_sent"]) {
                $first_video = array_key_first($videos);
                $meta = $videos[$first_video];
                bot_sendVideo($chat_id, $first_video, "🎬 {$meta['title']}\n{$meta['desc']}");
                $users[$uid]["intro_video_sent"] = true;
                save_json(USERS_FILE, $users);
            }
            
            bot_editMessageText($chat_id, $message_id, "✅ Obuna tasdiqlandi! Endi botdan foydalanishingiz mumkin.");
            bot_sendMessage($chat_id, "Asosiy menyu", get_reply_keyboard($username));
            answer_callback_query($callback_query_id);
            break;
            
        case "approve_topup":
            if (!$is_admin) {
                answer_callback_query($callback_query_id, "Sizda bunday huquq yo'q!", true);
                break;
            }
            
            $parts = explode("|", $data);
            if (count($parts) === 3) {
                $target_uid = $parts[1];
                $amount = intval($parts[2]);
                
                // Foydalanuvchi balansini yangilash
                if (!isset($users[$target_uid])) {
                    $users[$target_uid] = ["balance" => 0];
                }
                $users[$target_uid]["balance"] = isset($users[$target_uid]["balance"]) ? 
                    $users[$target_uid]["balance"] + $amount : $amount;
                save_json(USERS_FILE, $users);
                
                // Xabarni yangilash
                $original_caption = $callback_query['message']['caption'] ?? $callback_query['message']['text'];
                $new_caption = $original_caption . "\n\n✅ Tasdiqlandi: @" . $username . " (" . date('H:i') . ")";
                
                // Yangilangan keyboard (tugmalarni o'chirish)
                $new_kb = [
                    "inline_keyboard" => [
                        [["text" => "✅ TASDIQLANDI", "callback_data" => "already_approved"]]
                    ]
                ];
                
                // Xabar turini tekshirish va yangilash
                if (isset($callback_query['message']['caption'])) {
                    // Bu photo yoki document xabari
                    bot_editMessageCaption(RECEIPT_CHANNEL, $message_id, $new_caption, $new_kb);
                } else {
                    // Bu text xabari
                    bot_editMessageText(RECEIPT_CHANNEL, $message_id, $new_caption, $new_kb);
                }
                
                // Foydalanuvchiga xabar
                bot_sendMessage($target_uid, 
                    "✅ To'lovingiz tasdiqlandi!\n" .
                    "💳 Summa: " . number_format($amount) . " so'm\n" .
                    "💰 Yangi balans: " . number_format($users[$target_uid]["balance"]) . " so'm\n\n" .
                    "🎉 Endi botdan to'liq foydalanishingiz mumkin!");
                
                answer_callback_query($callback_query_id, "✅ To'lov tasdiqlandi va balansga qo'shildi!");
            } else {
                answer_callback_query($callback_query_id, "❌ Xatolik: Noto'g'ri ma'lumot!", true);
            }
            break;

        case "reject_topup":
            if (!$is_admin) {
                answer_callback_query($callback_query_id, "Sizda bunday huquq yo'q!", true);
                break;
            }
            
            $parts = explode("|", $data);
            if (count($parts) === 3) {
                $target_uid = $parts[1];
                $amount = intval($parts[2]);
                
                // Xabarni yangilash
                $original_caption = $callback_query['message']['caption'] ?? $callback_query['message']['text'];
                $new_caption = $original_caption . "\n\n❌ Bekor qilindi: @" . $username . " (" . date('H:i') . ")";
                
                // Yangilangan keyboard (tugmalarni o'chirish)
                $new_kb = [
                    "inline_keyboard" => [
                        [["text" => "❌ BEKOR QILINDI", "callback_data" => "already_rejected"]]
                    ]
                ];
                
                // Xabar turini tekshirish va yangilash
                if (isset($callback_query['message']['caption'])) {
                    // Bu photo yoki document xabari
                    bot_editMessageCaption(RECEIPT_CHANNEL, $message_id, $new_caption, $new_kb);
                } else {
                    // Bu text xabari
                    bot_editMessageText(RECEIPT_CHANNEL, $message_id, $new_caption, $new_kb);
                }
                
                // Foydalanuvchiga xabar
                bot_sendMessage($target_uid, 
                    "❌ Sizning to'lovingiz qabul qilinmadi.\n\n" .
                    "💳 Summa: " . number_format($amount) . " so'm\n" .
                    "📞 Sabab: Admin tomonidan rad etildi\n\n" .
                    "ℹ️ Iltimos, chekni tekshirib qayta yuboring yoki admin bilan bog'laning.");
                
                answer_callback_query($callback_query_id, "❌ To'lov bekor qilindi!");
            } else {
                answer_callback_query($callback_query_id, "❌ Xatolik: Noto'g'ri ma'lumot!", true);
            }
            break;
            
        case "already_approved":
            answer_callback_query($callback_query_id, "✅ Bu to'lov allaqachon tasdiqlangan!", true);
            break;
            
        case "already_rejected":
            answer_callback_query($callback_query_id, "❌ Bu to'lov allaqachon bekor qilingan!", true);
            break;
            
        default:
            if (strpos($data, "v") === 0) {
                // Video callback
                $index = intval(substr($data, 1));
                $user_state_data = get_user_state($uid);
                $video_list = $user_state_data && isset($user_state_data['data']['videos']) ? $user_state_data['data']['videos'] : [];
                
                if (isset($video_list[$index])) {
                    $video_id = $video_list[$index];
                    $meta = $videos[$video_id];
                    bot_sendVideo($chat_id, $video_id, "🎬 {$meta['title']}\n{$meta['desc']}");
                    answer_callback_query($callback_query_id, "✅ Video yuborildi!");
                } else {
                    answer_callback_query($callback_query_id, "❌ Video topilmadi!", true);
                }
                
            } elseif (strpos($data, "buy_paid_") === 0) {
                $views = intval(str_replace("buy_paid_", "", $data));
                $price = calculate_price($views);
                
                if ($price == -1) {
                    answer_callback_query($callback_query_id, "❌ Noto'g'ri ko'rish miqdori!", true);
                    break;
                }
                
                $balance = $users[$uid]["balance"] ?? 0;
                if ($balance < $price) {
                    answer_callback_query($callback_query_id, "❌ Balans yetarli emas!", true);
                    break;
                }
                
                // Balansdan pulni ayrish
                $users[$uid]["balance"] -= $price;
                save_json(USERS_FILE, $users);
                
                $hs = get_hashtags($views);
                $users[$uid]["hashtags"] = $hs;
                $users[$uid]["await_video"] = true;
                $users[$uid]["views"] = $views;
                save_json(USERS_FILE, $users);
                
                $ht = implode("\n", $hs);
                bot_editMessageText($chat_id, $message_id,
                    "✅ To'lov muvaffaqiyatli amalga oshirildi!\n" .
                    "💰 {$price} so'm balansingizdan ayrildi.\n\n" .
                    "🎯 {$views} ta ko'rish uchun mos heshteglar:\n<pre>{$ht}</pre>\n" .
                    "📋 Nusxalash uchun ustiga bosing.\n📹 Endi video havolasini yuboring:",
                    null, "HTML");
                
                set_user_state($uid, "waiting_for_video_link");
                answer_callback_query($callback_query_id, "To'lov muvaffaqiyatli!");
            }
            break;
    }
}

// Ma'lumotlarni saqlash
save_json(USERS_FILE, $users);
save_json(STATES_FILE, $states);
?>