Update app.py

app.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 
 import os
 from flask import Flask, request, Response, render_template_string, jsonify, redirect, url_for
@@ -11,8 +10,9 @@ from datetime import datetime
 import logging
 import threading
 import random
-import pytz # Import pytz for timezone handling
-import uuid # For generating unique invoice IDs
+import pytz
+import uuid
+import string
 
 from huggingface_hub import HfApi, hf_hub_download
 from huggingface_hub.utils import RepositoryNotFoundError
@@ -27,7 +27,6 @@ HF_DATA_FILE_PATH = "data.json"
 HF_TOKEN_WRITE = os.getenv("HF_TOKEN_WRITE")
 HF_TOKEN_READ = os.getenv("HF_TOKEN_READ")
 
-# Define Bishkek timezone
 BISHKEK_TZ = pytz.timezone('Asia/Bishkek')
 
 app = Flask(__name__)
@@ -35,15 +34,27 @@ logging.basicConfig(level=logging.INFO)
 app.secret_key = os.urandom(24)
 
 _data_lock = threading.Lock()
-visitor_data_cache = {} # This will store all data, including organization details
+visitor_data_cache = {}
 
 def generate_unique_id(all_data):
     while True:
-        # Check against both client IDs and invoice IDs
         new_id = str(random.randint(10000, 99999))
         if new_id not in all_data:
             return new_id
 
+def generate_referral_code(all_data):
+    while True:
+        code = ''.join(random.choices(string.ascii_uppercase + string.digits, k=6))
+        is_unique = True
+        for key, user_data in all_data.items():
+            if key == "organization_details":
+                continue
+            if user_data.get('referral_code') == code:
+                is_unique = False
+                break
+        if is_unique:
+            return code
+
 def download_data_from_hf():
     global visitor_data_cache
     if not HF_TOKEN_READ:
@@ -80,14 +91,14 @@ def download_data_from_hf():
 def load_visitor_data():
     global visitor_data_cache
     with _data_lock:
-        if not visitor_data_cache: # Only load from file if cache is empty
+        if not visitor_data_cache:
             try:
                 with open(DATA_FILE, 'r', encoding='utf-8') as f:
                     visitor_data_cache = json.load(f)
                 logging.info("Visitor data loaded from local JSON.")
             except FileNotFoundError:
                 logging.warning(f"{DATA_FILE} not found locally. Starting with empty data.")
-                visitor_data_cache = {"organization_details": {}} # Initialize with empty org details
+                visitor_data_cache = {"organization_details": {}}
             except json.JSONDecodeError:
                 logging.error(f"Error decoding {DATA_FILE}. Starting with empty data.")
                 visitor_data_cache = {"organization_details": {}}
@@ -95,7 +106,6 @@ def load_visitor_data():
                 logging.error(f"Unexpected error loading visitor data: {e}")
                 visitor_data_cache = {"organization_details": {}}
         
-        # Ensure organization_details key exists
         if "organization_details" not in visitor_data_cache:
             visitor_data_cache["organization_details"] = {}
 
@@ -104,29 +114,6 @@ def load_visitor_data():
 def save_visitor_data(data):
     with _data_lock:
         try:
-            # When `data` is a dictionary, update it directly.
-            # If `data` is a partial update for `visitor_data_cache`, merge it.
-            # For simplicity, this function now assumes `data` is the complete `visitor_data_cache`
-            # or a mergeable dictionary that should be applied to the cache before saving.
-            # Given current usage, it's typically `save_visitor_data({user_id: user_entry})`
-            # or `save_visitor_data({"organization_details": new_org_details})` etc.
-            # It should ideally update the global `visitor_data_cache` and then dump it.
-
-            # This line needs to be careful: if `data` is a single user, it overwrites.
-            # It's better to update specific parts of the cache or always pass the full cache.
-            # Let's adjust existing call sites to pass the full `all_data` after modification.
-            # For now, let's assume `data` is what needs to be *merged* into `visitor_data_cache`
-            # or `data` IS the new `visitor_data_cache`.
-            
-            # A more robust approach for `save_visitor_data` would be:
-            # 1. Take a user_id and user_data to update a specific user
-            # 2. Take an org_details dict to update org details
-            # 3. Then, always dump the *entire* `visitor_data_cache`.
-
-            # Simpler change for existing code:
-            # Ensure `visitor_data_cache` is directly modified by operations,
-            # and `save_visitor_data` just dumps the current `visitor_data_cache`.
-
             with open(DATA_FILE, 'w', encoding='utf-8') as f:
                 json.dump(visitor_data_cache, f, ensure_ascii=False, indent=4)
             logging.info(f"Visitor data successfully saved to {DATA_FILE}.")
@@ -255,7 +242,7 @@ TEMPLATE = """
         .header {
             text-align: left;
             padding: var(--padding-m) 0;
-            margin-bottom: 0; /* Adjusted for nav buttons */
+            margin-bottom: 0;
         }
         .logo {
             font-size: 2.5em;
@@ -296,12 +283,12 @@ TEMPLATE = """
             box-shadow: 0 2px 10px rgba(255,193,7,0.3);
         }
         .content-section {
-            display: none; /* Hidden by default */
+            display: none;
             flex-direction: column;
             gap: var(--padding-m);
         }
         .content-section.active {
-            display: flex; /* Shown when active */
+            display: flex;
         }
         .card-grid {
             display: grid;
@@ -406,8 +393,6 @@ TEMPLATE = """
             color: var(--text-secondary-color);
             padding: 2rem 0;
         }
-
-        /* Business Card Styles */
         .business-card-item {
             margin-bottom: 10px;
         }
@@ -424,7 +409,7 @@ TEMPLATE = """
         .business-card-value a {
             color: var(--brand-yellow);
             text-decoration: none;
-            word-break: break-all; /* For long URLs */
+            word-break: break-all;
         }
         .business-card-value a:hover {
             text-decoration: underline;
@@ -455,8 +440,6 @@ TEMPLATE = """
             height: 20px;
             width: 20px;
         }
-        
-        /* Invoice Detail Modal */
         .modal {
             display: none;
             position: fixed;
@@ -577,6 +560,25 @@ TEMPLATE = """
                 <p class="client-id-label">Ваш ID клиента</p>
                 <p class="client-id-value">{{ user.id }}</p>
             </section>
+            
+            <section class="client-id-card">
+                <p class="client-id-label">Ваш реферальный код</p>
+                <div style="display: flex; align-items: center; gap: 8px;">
+                    <p id="referralCode" class="client-id-value" style="margin: 0;">{{ user.referral_code }}</p>
+                    <button onclick="copyReferralCode()" style="padding: 10px; border-radius: 8px; border: none; background: var(--brand-yellow); color: var(--brand-black); font-weight: 600; cursor: pointer;">Копировать</button>
+                </div>
+            </section>
+            
+            {% if not user.referred_by_user_id %}
+            <section class="history-section">
+                <h2 class="history-title">Активировать код</h2>
+                <div style="display: flex; gap: 10px; align-items: center;">
+                    <input type="text" id="referralCodeInput" placeholder="Введите реферальный код" style="flex-grow: 1; padding: 12px; font-size: 1em; border-radius: 8px; border: 1px solid #333; background: #2a2a2a; color: white; text-transform: uppercase;">
+                    <button onclick="activateReferralCode()" style="padding: 12px 18px; border-radius: 8px; border: none; background: var(--brand-yellow); color: var(--brand-black); font-weight: 600; cursor: pointer;">Активировать</button>
+                </div>
+                <p id="referralStatus" style="text-align: center; margin-top: 10px; font-weight: 500; min-height: 1em;"></p>
+            </section>
+            {% endif %}
 
             <section class="history-section">
                 <h2 class="history-title">История операций</h2>
@@ -661,7 +663,7 @@ TEMPLATE = """
                         <div class="business-card-value">
                             {% if org_details.whatsapp_link %}
                                 <a href="{{ org_details.whatsapp_link }}" target="_blank">
-                                    <img src="data:image/svg+xml;base64,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">
+                                    <img src="data:image/svg+xml;base64,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">
                                     {{ org_details.whatsapp_link }}
                                 </a>
                             {% else %}
@@ -689,13 +691,11 @@ TEMPLATE = """
         </div>
     </div>
 
-    <!-- Invoice Detail Modal -->
     <div id="invoiceDetailModal" class="modal">
         <div class="modal-content">
             <span class="modal-close" onclick="closeModal('invoiceDetailModal')">×</span>
             <h2 id="invoiceDetailTitle" class="modal-title"></h2>
             <ul id="invoiceDetailList" class="invoice-detail-list">
-                <!-- Invoice items will be loaded here -->
             </ul>
             <div id="invoiceDetailTotal" class="invoice-total-display">
                 <span>Итого:</span>
@@ -807,14 +807,59 @@ TEMPLATE = """
             openModal('invoiceDetailModal');
         }
 
+        function copyReferralCode() {
+            const code = document.getElementById('referralCode').textContent;
+            navigator.clipboard.writeText(code).then(() => {
+                tg.showAlert('Код скопирован!');
+            }, () => {
+                tg.showAlert('Не удалось скопировать код.');
+            });
+        }
+
+        function activateReferralCode() {
+            const codeInput = document.getElementById('referralCodeInput');
+            const code = codeInput.value.trim().toUpperCase();
+            const statusEl = document.getElementById('referralStatus');
+            if (!code) {
+                statusEl.textContent = 'Введите код.';
+                statusEl.style.color = 'var(--brand-red)';
+                return;
+            }
+            
+            const urlParams = new URLSearchParams(window.location.search);
+            const userId = urlParams.get('user_id_for_test');
+            
+            statusEl.textContent = 'Активация...';
+            statusEl.style.color = 'var(--text-secondary-color)';
+
+            fetch('/api/activate_referral', {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify({ user_id: userId, referral_code: code })
+            })
+            .then(response => response.json())
+            .then(data => {
+                if (data.status === 'ok') {
+                    statusEl.textContent = 'Код успешно активирован!';
+                    statusEl.style.color = '#4CAF50';
+                    setTimeout(() => { window.location.reload(); }, 1500);
+                } else {
+                    statusEl.textContent = data.message || 'Ошибка активации.';
+                    statusEl.style.color = 'var(--brand-red)';
+                }
+            })
+            .catch(error => {
+                statusEl.textContent = 'Произошла ошибка сети.';
+                statusEl.style.color = 'var(--brand-red)';
+            });
+        }
+
         document.addEventListener('DOMContentLoaded', () => {
             document.querySelectorAll('.nav-btn').forEach(button => {
                 button.addEventListener('click', () => {
                     showSection(button.dataset.target);
                 });
             });
-
-            // Initial section display
             showSection('dashboard-section'); 
         });
 
@@ -920,122 +965,32 @@ ADMIN_TEMPLATE = """
         .modal-footer button { padding: 12px 25px; font-size: 1.1em; border-radius: 8px; border: none; font-weight: 600; cursor: pointer; }
         .btn-submit { background-color: var(--admin-success); color: white; }
         .status-message { text-align: center; font-weight: 500; flex-grow: 1; text-align: left; }
-
-        /* Tabs for Transaction Modal */
-        .tab-buttons {
-            display: flex;
-            margin-bottom: 1rem;
-            border-bottom: 1px solid var(--admin-border);
-        }
-        .tab-btn {
-            padding: 10px 15px;
-            border: none;
-            background-color: transparent;
-            color: var(--admin-secondary);
-            font-weight: 600;
-            cursor: pointer;
-            border-bottom: 3px solid transparent;
-            transition: all 0.2s ease;
-        }
-        .tab-btn.active {
-            color: var(--admin-primary-dark);
-            border-bottom-color: var(--admin-primary);
-        }
-        .tab-content {
-            display: none;
-        }
-        .tab-content.active {
-            display: block;
-        }
-
-        /* Invoice table */
-        .invoice-items-table {
-            width: 100%;
-            border-collapse: collapse;
-            margin-top: 1rem;
-        }
-        .invoice-items-table th, .invoice-items-table td {
-            border: 1px solid var(--admin-border);
-            padding: 8px;
-            text-align: left;
-            font-size: 0.9em;
-        }
-        .invoice-items-table th {
-            background-color: #e9ecef;
-            font-weight: 600;
-            color: var(--admin-text);
-        }
-        .invoice-items-table .total-row td {
-            font-weight: 700;
-            background-color: #f0f0f0;
-        }
-        .invoice-items-table .action-btn {
-            background: none;
-            border: none;
-            color: var(--admin-danger);
-            cursor: pointer;
-            font-size: 1.2em;
-        }
-        .invoice-section-summary {
-             padding: 1rem;
-             background-color: #f0f0f0;
-             border-radius: 8px;
-             margin-top: 1rem;
-             font-weight: 600;
-        }
-        .invoice-list-admin {
-            list-style: none;
-            padding: 0;
-            max-height: 200px;
-            overflow-y: auto;
-            border: 1px solid var(--admin-border);
-            border-radius: 8px;
-        }
-        .invoice-list-admin li {
-            padding: 8px 12px;
-            border-bottom: 1px solid var(--admin-border);
-            display: flex;
-            justify-content: space-between;
-            align-items: center;
-        }
-        .invoice-list-admin li:last-child {
-            border-bottom: none;
-        }
-        .invoice-list-admin .invoice-info {
-            font-size: 0.9em;
-        }
-        .invoice-list-admin .invoice-amount {
-            font-weight: 700;
-            color: var(--admin-primary-dark);
-        }
-        .invoice-list-admin .view-btn {
-            background: none;
-            border: none;
-            color: var(--admin-secondary);
-            cursor: pointer;
-            font-size: 0.9em;
-            margin-left: 10px;
-        }
-        .invoice-list-admin .delete-btn {
-            background: none;
-            border: none;
-            color: var(--admin-danger);
-            cursor: pointer;
-            font-size: 0.9em;
-            margin-left: 5px;
-        }
-        .organization-details-form {
-            display: flex;
-            flex-direction: column;
-            gap: 1rem;
-        }
-        .organization-details-form textarea {
-            min-height: 80px;
-            resize: vertical;
-        }
+        .tab-buttons { display: flex; margin-bottom: 1rem; border-bottom: 1px solid var(--admin-border); }
+        .tab-btn { padding: 10px 15px; border: none; background-color: transparent; color: var(--admin-secondary); font-weight: 600; cursor: pointer; border-bottom: 3px solid transparent; transition: all 0.2s ease; }
+        .tab-btn.active { color: var(--admin-primary-dark); border-bottom-color: var(--admin-primary); }
+        .tab-content { display: none; }
+        .tab-content.active { display: block; }
+        .invoice-items-table { width: 100%; border-collapse: collapse; margin-top: 1rem; }
+        .invoice-items-table th, .invoice-items-table td { border: 1px solid var(--admin-border); padding: 8px; text-align: left; font-size: 0.9em; }
+        .invoice-items-table th { background-color: #e9ecef; font-weight: 600; color: var(--admin-text); }
+        .invoice-items-table .total-row td { font-weight: 700; background-color: #f0f0f0; }
+        .invoice-items-table .action-btn { background: none; border: none; color: var(--admin-danger); cursor: pointer; font-size: 1.2em; }
+        .invoice-section-summary { padding: 1rem; background-color: #f0f0f0; border-radius: 8px; margin-top: 1rem; font-weight: 600; }
+        .invoice-list-admin { list-style: none; padding: 0; max-height: 200px; overflow-y: auto; border: 1px solid var(--admin-border); border-radius: 8px; }
+        .invoice-list-admin li { padding: 8px 12px; border-bottom: 1px solid var(--admin-border); display: flex; justify-content: space-between; align-items: center; }
+        .invoice-list-admin li:last-child { border-bottom: none; }
+        .invoice-list-admin .invoice-info { font-size: 0.9em; }
+        .invoice-list-admin .invoice-amount { font-weight: 700; color: var(--admin-primary-dark); }
+        .invoice-list-admin .view-btn { background: none; border: none; color: var(--admin-secondary); cursor: pointer; font-size: 0.9em; margin-left: 10px; }
+        .invoice-list-admin .delete-btn { background: none; border: none; color: var(--admin-danger); cursor: pointer; font-size: 0.9em; margin-left: 5px; }
+        .organization-details-form { display: flex; flex-direction: column; gap: 1rem; }
+        .organization-details-form textarea { min-height: 80px; resize: vertical; }
     </style>
 </head>
 <body>
+    <script id="allUsersData" type="application/json">
+        {{ all_data|tojson }}
+    </script>
     <div class="container">
         <h1>Панель администратора Bonus</h1>
         <div class="summary-bar">
@@ -1055,6 +1010,10 @@ ADMIN_TEMPLATE = """
                 <div class="value debt">{{ summary.users_with_debt }}</div>
                 <div class="label">Клиенты с долгом</div>
             </div>
+             <div class="summary-card">
+                <div class="value bonus">{{ "%.1f"|format(org_details.referral_bonus_percentage|float) }}%</div>
+                <div class="label">Реферальный бонус</div>
+            </div>
         </div>
 
         <div class="controls-bar">
@@ -1072,6 +1031,9 @@ ADMIN_TEMPLATE = """
                             <div class="user-details">
                                 <div class="name">{{ user.first_name or '' }} {{ user.last_name or '' }}</div>
                                 <div class="username">@{{ user.username if user.username else user.phone_number }} | ID: {{ user.id }}</div>
+                                {% if user.referred_by_user_id and all_data[user.referred_by_user_id] %}
+                                    <div class="username" style="font-size: 0.8em; color: var(--admin-success); margin-top: 4px;">Приведен: {{ all_data[user.referred_by_user_id].first_name }} ({{ user.referred_by_user_id }})</div>
+                                {% endif %}
                             </div>
                         </div>
                         <div class="user-balances">
@@ -1098,7 +1060,6 @@ ADMIN_TEMPLATE = """
         {% endif %}
     </div>
 
-    <!-- Transaction/Invoice Modal -->
     <div id="transactionModal" class="modal">
       <div class="modal-content">
         <span class="modal-close" onclick="closeModal('transactionModal')">×</span>
@@ -1156,6 +1117,11 @@ ADMIN_TEMPLATE = """
                 </div>
             </div>
 
+            <div class="history-container">
+                <h3>Приведенные клиенты</h3>
+                <ul id="modalReferralsList" class="history-list"></ul>
+            </div>
+
             <div class="history-container">
                 <h3>Общая история операций</h3>
                 <ul id="modalHistoryList" class="history-list"></ul>
@@ -1180,7 +1146,6 @@ ADMIN_TEMPLATE = """
                         </tr>
                     </thead>
                     <tbody>
-                        <!-- New invoice items will be added here -->
                     </tbody>
                     <tfoot>
                         <tr>
@@ -1205,7 +1170,6 @@ ADMIN_TEMPLATE = """
       </div>
     </div>
     
-    <!-- Add Client Modal -->
     <div id="addClientModal" class="modal">
       <div class="modal-content">
         <span class="modal-close" onclick="closeModal('addClientModal')">×</span>
@@ -1227,7 +1191,6 @@ ADMIN_TEMPLATE = """
       </div>
     </div>
 
-    <!-- Organization Settings Modal -->
     <div id="orgSettingsModal" class="modal">
         <div class="modal-content">
             <span class="modal-close" onclick="closeModal('orgSettingsModal')">×</span>
@@ -1255,6 +1218,10 @@ ADMIN_TEMPLATE = """
                     <label for="orgTelegramLink">Ссылка на Telegram</label>
                     <input type="url" id="orgTelegramLink" placeholder="https://t.me/your_telegram_username">
                 </div>
+                <div class="form-group">
+                    <label for="orgReferralBonusPercentage">Процент реферального бонуса (от суммы покупки)</label>
+                    <input type="number" step="0.1" min="0" id="orgReferralBonusPercentage" placeholder="2.0">
+                </div>
             </div>
             <div class="modal-footer">
                 <div id="orgStatus" class="status-message"></div>
@@ -1263,13 +1230,11 @@ ADMIN_TEMPLATE = """
         </div>
     </div>
 
-    <!-- Invoice Detail Modal (for Admin) -->
     <div id="adminInvoiceDetailModal" class="modal">
         <div class="modal-content">
             <span class="modal-close" onclick="closeModal('adminInvoiceDetailModal')">×</span>
             <h2 id="adminInvoiceDetailTitle" class="modal-title"></h2>
             <ul id="adminInvoiceDetailList" class="invoice-detail-list">
-                <!-- Invoice items will be loaded here -->
             </ul>
             <div id="adminInvoiceDetailTotal" class="invoice-total-display">
                 <span>Итого:</span>
@@ -1310,19 +1275,36 @@ ADMIN_TEMPLATE = """
             document.getElementById('repayDebtAmount').value = '';
             document.getElementById('modalStatus').textContent = '';
             document.getElementById('invoiceStatus').textContent = '';
-
-            // Reset new invoice items
             newInvoiceItems = [];
             renderNewInvoiceItems();
-            
-            loadUserHistoryAndInvoices(); // Load history and invoices for current user
-
-            // Set default tab
+            loadUserHistoryAndInvoices();
+            populateReferralsList(userData);
             showTab('bonus-debt-tab');
-
             transactionModal.style.display = 'block';
         }
 
+        function populateReferralsList(userData) {
+            const referralsListEl = document.getElementById('modalReferralsList');
+            referralsListEl.innerHTML = '';
+            const referrals = userData.referrals || [];
+            const allUsersData = JSON.parse(document.getElementById('allUsersData').textContent);
+
+            if (referrals.length > 0) {
+                referrals.forEach(refId => {
+                    const referrerData = allUsersData[refId];
+                    const li = document.createElement('li');
+                    if (referrerData) {
+                        li.textContent = `${referrerData.first_name || 'Клиент'} (ID: ${refId})`;
+                    } else {
+                        li.textContent = `Неизвестный клиент (ID: ${refId})`;
+                    }
+                    referralsListEl.appendChild(li);
+                });
+            } else {
+                referralsListEl.innerHTML = '<li style="text-align:center; padding: 1rem; color: var(--admin-secondary);">Нет рефералов</li>';
+            }
+        }
+
         function loadUserHistoryAndInvoices() {
             const historyList = document.getElementById('modalHistoryList');
             historyList.innerHTML = '';
@@ -1340,8 +1322,8 @@ ADMIN_TEMPLATE = """
                         sign = item.type === 'accrual' ? '+' : '-';
                         amountClass = item.type === 'accrual' ? 'bonus-accrual' : 'bonus-deduction';
                         amountText = `${sign}${parseFloat(item.amount).toFixed(2)}`;
-                    } else { // debt
-                        sign = item.type === 'accrual' ? '+' : '-'; // 'accrual' for debt means debt increases (positive)
+                    } else {
+                        sign = item.type === 'accrual' ? '+' : '-';
                         amountClass = item.type === 'accrual' ? 'debt-accrual' : 'debt-payment';
                         amountText = `${item.type === 'accrual' ? '+' : '-'}${parseFloat(item.amount).toFixed(2)}`;
                     }
@@ -1358,7 +1340,6 @@ ADMIN_TEMPLATE = """
                 historyList.innerHTML = '<li style="text-align:center; padding: 1rem; color: var(--admin-secondary);">Нет истории</li>';
             }
             
-            // Load invoices for invoice tab
             const modalInvoiceList = document.getElementById('modalInvoiceList');
             modalInvoiceList.innerHTML = '';
             const userInvoices = (currentUserData.invoices || []).sort((a, b) => new Date(b.date) - new Date(a.date));
@@ -1402,6 +1383,7 @@ ADMIN_TEMPLATE = """
                     document.getElementById('orgAddress').value = data.address || '';
                     document.getElementById('orgWhatsAppLink').value = data.whatsapp_link || '';
                     document.getElementById('orgTelegramLink').value = data.telegram_link || '';
+                    document.getElementById('orgReferralBonusPercentage').value = data.referral_bonus_percentage || '';
                     document.getElementById('orgStatus').textContent = '';
                     orgSettingsModal.style.display = 'block';
                 })
@@ -1559,6 +1541,7 @@ ADMIN_TEMPLATE = """
                 address: document.getElementById('orgAddress').value.trim(),
                 whatsapp_link: document.getElementById('orgWhatsAppLink').value.trim(),
                 telegram_link: document.getElementById('orgTelegramLink').value.trim(),
+                referral_bonus_percentage: parseFloat(document.getElementById('orgReferralBonusPercentage').value) || 0,
             };
 
             try {
@@ -1605,14 +1588,9 @@ ADMIN_TEMPLATE = """
         function addNewInvoiceItemRow() {
             const tableBody = document.getElementById('newInvoiceItemsTable').getElementsByTagName('tbody')[0];
             const newRow = tableBody.insertRow();
-            const rowIndex = tableBody.rows.length - 1; // Index for current item in newInvoiceItems
+            const rowIndex = tableBody.rows.length - 1;
 
-            newInvoiceItems.push({
-                product_name: '',
-                quantity: 0,
-                unit_price: 0,
-                item_total: 0
-            });
+            newInvoiceItems.push({ product_name: '', quantity: 0, unit_price: 0, item_total: 0 });
 
             newRow.innerHTML = `
                 <td><input type="text" placeholder="Название товара" oninput="updateInvoiceItem(${rowIndex}, 'product_name', this.value)"></td>
@@ -1626,12 +1604,10 @@ ADMIN_TEMPLATE = """
         function updateInvoiceItem(index, field, value) {
             if (newInvoiceItems[index]) {
                 newInvoiceItems[index][field] = value;
-                
                 const qty = parseFloat(newInvoiceItems[index].quantity) || 0;
                 const price = parseFloat(newInvoiceItems[index].unit_price) || 0;
                 const itemTotal = qty * price;
                 newInvoiceItems[index].item_total = itemTotal;
-
                 const tableBody = document.getElementById('newInvoiceItemsTable').getElementsByTagName('tbody')[0];
                 tableBody.rows[index].querySelector('.item-total-display').textContent = itemTotal.toFixed(2);
                 updateNewInvoiceTotal();
@@ -1640,9 +1616,7 @@ ADMIN_TEMPLATE = """
 
         function removeInvoiceItemRow(button, index) {
             const tableBody = document.getElementById('newInvoiceItemsTable').getElementsByTagName('tbody')[0];
-            tableBody.deleteRow(button.parentNode.parentNode.rowIndex - 1); // rowIndex is 1-based, -1 for header
-
-            // Re-index newInvoiceItems and update the oninput attributes
+            tableBody.deleteRow(button.parentNode.parentNode.rowIndex - 1);
             newInvoiceItems.splice(index, 1);
             for (let i = 0; i < tableBody.rows.length; i++) {
                 const row = tableBody.rows[i];
@@ -1651,16 +1625,12 @@ ADMIN_TEMPLATE = """
                 row.querySelector('input[type="number"][step="0.01"]').setAttribute('oninput', `updateInvoiceItem(${i}, 'unit_price', parseFloat(this.value))`);
                 row.querySelector('.action-btn').setAttribute('onclick', `removeInvoiceItemRow(this, ${i})`);
             }
-
             updateNewInvoiceTotal();
         }
 
-
         function updateNewInvoiceTotal() {
             let total = 0;
-            newInvoiceItems.forEach(item => {
-                total += parseFloat(item.item_total) || 0;
-            });
+            newInvoiceItems.forEach(item => { total += parseFloat(item.item_total) || 0; });
             document.getElementById('newInvoiceTotalAmount').textContent = total.toFixed(2);
         }
 
@@ -1690,17 +1660,13 @@ ADMIN_TEMPLATE = """
                 statusEl.textContent = 'Пользователь не выбран.';
                 return;
             }
-
             const itemsToAdd = newInvoiceItems.filter(item => item.product_name && (item.quantity > 0 || item.unit_price > 0));
-
             if (itemsToAdd.length === 0) {
                 statusEl.style.color = 'var(--admin-danger)';
                 statusEl.textContent = 'Добавьте хотя бы один товар в накладную.';
                 return;
             }
-
             const totalAmount = itemsToAdd.reduce((sum, item) => sum + item.item_total, 0);
-
             const payload = {
                 user_id: currentUserData.id,
                 total_amount: totalAmount,
@@ -1757,7 +1723,7 @@ ADMIN_TEMPLATE = """
                 });
                 const result = await response.json();
                 if (response.ok) {
-                    location.reload(); // Reload the page to update the list
+                    location.reload();
                 } else {
                     throw new Error(result.message || 'Не удалось удалить накладную.');
                 }
@@ -1768,24 +1734,13 @@ ADMIN_TEMPLATE = """
 
 
         window.onclick = function(event) {
-            if (event.target == transactionModal) {
-                closeModal('transactionModal');
-            }
-            if (event.target == addClientModal) {
-                closeModal('addClientModal');
-            }
-            if (event.target == orgSettingsModal) {
-                closeModal('orgSettingsModal');
-            }
-            if (event.target == adminInvoiceDetailModal) {
-                closeModal('adminInvoiceDetailModal');
-            }
+            if (event.target == transactionModal) { closeModal('transactionModal'); }
+            if (event.target == addClientModal) { closeModal('addClientModal'); }
+            if (event.target == orgSettingsModal) { closeModal('orgSettingsModal'); }
+            if (event.target == adminInvoiceDetailModal) { closeModal('adminInvoiceDetailModal'); }
         }
 
-        // Initial row for new invoice
-        document.addEventListener('DOMContentLoaded', () => {
-            addNewInvoiceItemRow(); // Add an empty row for new invoice input
-        });
+        document.addEventListener('DOMContentLoaded', () => { addNewInvoiceItemRow(); });
     </script>
 </body>
 </html>
@@ -1794,8 +1749,7 @@ ADMIN_TEMPLATE = """
 @app.route('/')
 def index():
     user_id_str = request.args.get('user_id_for_test')
-    
-    all_data = load_visitor_data() # Load all data, including organization details
+    all_data = load_visitor_data()
     user_data = {}
 
     if user_id_str and user_id_str in all_data:
@@ -1816,20 +1770,14 @@ def index():
             reverse=True
         )
         user_data['combined_history'] = combined_history
-        user_data['invoices'] = user_data.get('invoices', []) # Pass invoices to template
+        user_data['invoices'] = user_data.get('invoices', [])
     else:
         user_data = {
-            "id": "N/A",
-            "bonuses": 0,
-            "debts": 0,
-            "history": [],
-            "debt_history": [],
-            "combined_history": [],
-            "invoices": []
+            "id": "N/A", "bonuses": 0, "debts": 0, "history": [], "debt_history": [],
+            "combined_history": [], "invoices": [], "referral_code": "N/A", "referred_by_user_id": None
         }
     
     org_details = all_data.get('organization_details', {})
-
     return render_template_string(TEMPLATE, user=user_data, org_details=org_details)
 
 @app.route('/verify', methods=['POST'])
@@ -1841,7 +1789,6 @@ def verify_data():
             return jsonify({"status": "error", "message": "Missing initData"}), 400
 
         user_data_parsed, is_valid = verify_telegram_data(init_data_str)
-
         user_info_dict = {}
         if user_data_parsed and 'user' in user_data_parsed:
             try:
@@ -1855,13 +1802,11 @@ def verify_data():
             tg_user_id = user_info_dict.get('id')
             if tg_user_id:
                 now = datetime.now(BISHKEK_TZ)
-                all_data = load_visitor_data() # Get current state of all data
+                all_data = load_visitor_data()
                 
                 existing_user_key = None
                 for key, user_data_item in all_data.items():
-                    # Skip 'organization_details' when iterating through users
-                    if key == "organization_details":
-                        continue
+                    if key == "organization_details": continue
                     if str(user_data_item.get('telegram_id')) == str(tg_user_id):
                         existing_user_key = key
                         break
@@ -1869,40 +1814,27 @@ def verify_data():
                 if existing_user_key:
                     user_entry = all_data[existing_user_key]
                     user_entry.update({
-                        'first_name': user_info_dict.get('first_name'),
-                        'last_name': user_info_dict.get('last_name'),
-                        'username': user_info_dict.get('username'),
-                        'photo_url': user_info_dict.get('photo_url'),
-                        'language_code': user_info_dict.get('language_code'),
-                        'visited_at': now.timestamp(),
+                        'first_name': user_info_dict.get('first_name'), 'last_name': user_info_dict.get('last_name'),
+                        'username': user_info_dict.get('username'), 'photo_url': user_info_dict.get('photo_url'),
+                        'language_code': user_info_dict.get('language_code'), 'visited_at': now.timestamp(),
                         'visited_at_str': now.strftime('%Y-%m-%d %H:%M:%S')
                     })
                     user_id_to_save = existing_user_key
                 else:
                     new_user_id = generate_unique_id(all_data)
                     user_entry = {
-                        'id': new_user_id,
-                        'telegram_id': tg_user_id,
-                        'first_name': user_info_dict.get('first_name'),
-                        'last_name': user_info_dict.get('last_name'),
-                        'username': user_info_dict.get('username'),
-                        'photo_url': user_info_dict.get('photo_url'),
-                        'language_code': user_info_dict.get('language_code'),
-                        'is_premium': user_info_dict.get('is_premium', False),
-                        'phone_number': None, # No phone number from Telegram initData by default
-                        'visited_at': now.timestamp(),
-                        'visited_at_str': now.strftime('%Y-%m-%d %H:%M:%S'),
-                        'bonuses': 0,
-                        'history': [],
-                        'debts': 0,
-                        'debt_history': [],
-                        'invoices': [] # Initialize invoices list
+                        'id': new_user_id, 'telegram_id': tg_user_id, 'first_name': user_info_dict.get('first_name'),
+                        'last_name': user_info_dict.get('last_name'), 'username': user_info_dict.get('username'),
+                        'photo_url': user_info_dict.get('photo_url'), 'language_code': user_info_dict.get('language_code'),
+                        'is_premium': user_info_dict.get('is_premium', False), 'phone_number': None,
+                        'visited_at': now.timestamp(), 'visited_at_str': now.strftime('%Y-%m-%d %H:%M:%S'),
+                        'bonuses': 0, 'history': [], 'debts': 0, 'debt_history': [], 'invoices': [],
+                        'referral_code': generate_referral_code(all_data), 'referred_by_user_id': None, 'referrals': []
                     }
                     user_id_to_save = new_user_id
                 
-                all_data[user_id_to_save] = user_entry # Update the global cache
-                save_visitor_data(all_data) # Save the entire cache
-
+                all_data[user_id_to_save] = user_entry
+                save_visitor_data(all_data)
                 return jsonify({"status": "ok", "verified": True, "user_id": user_id_to_save})
             else:
                  return jsonify({"status": "error", "verified": True, "message": "User ID not found in parsed data"}), 400
@@ -1919,7 +1851,7 @@ def admin_panel():
     all_data = load_visitor_data()
     users_list = []
     for user_id, user_data in all_data.items():
-        if user_id == "organization_details": # Skip organization details
+        if user_id == "organization_details":
             continue
         user_data['id'] = user_id
         users_list.append(user_data)
@@ -1930,13 +1862,63 @@ def admin_panel():
     users_with_debt = sum(1 for u in users_list if u.get('debts', 0) > 0)
     
     summary_stats = {
-        "total_users": total_users,
-        "total_bonuses": total_bonuses,
-        "total_debts": total_debts,
-        "users_with_debt": users_with_debt
+        "total_users": total_users, "total_bonuses": total_bonuses,
+        "total_debts": total_debts, "users_with_debt": users_with_debt
     }
-    
-    return render_template_string(ADMIN_TEMPLATE, users=users_list, summary=summary_stats)
+    org_details = all_data.get('organization_details', {})
+    return render_template_string(ADMIN_TEMPLATE, users=users_list, summary=summary_stats, all_data=all_data, org_details=org_details)
+
+@app.route('/api/activate_referral', methods=['POST'])
+def activate_referral():
+    try:
+        data = request.get_json()
+        user_id = str(data.get('user_id'))
+        referral_code = data.get('referral_code', '').upper()
+
+        if not user_id or not referral_code:
+            return jsonify({"status": "error", "message": "Необходим ID пользователя и реферальный код."}), 400
+
+        all_data = load_visitor_data()
+        
+        if user_id not in all_data:
+            return jsonify({"status": "error", "message": "Пользователь не найден."}), 404
+
+        user = all_data[user_id]
+        
+        if user.get('referred_by_user_id'):
+            return jsonify({"status": "error", "message": "Вы уже активировали реферальный код."}), 400
+
+        if user.get('referral_code') == referral_code:
+            return jsonify({"status": "error", "message": "Вы не можете использовать свой собственный код."}), 400
+
+        referrer_id = None
+        referrer_user = None
+        for key, value in all_data.items():
+            if key == "organization_details": continue
+            if value.get('referral_code') == referral_code:
+                referrer_id = key
+                referrer_user = value
+                break
+        
+        if not referrer_id or not referrer_user:
+            return jsonify({"status": "error", "message": "Введен неверный реферальный код."}), 404
+        
+        user['referred_by_user_id'] = referrer_id
+        
+        if 'referrals' not in referrer_user or not isinstance(referrer_user['referrals'], list):
+            referrer_user['referrals'] = []
+        referrer_user['referrals'].append(user_id)
+        
+        all_data[user_id] = user
+        all_data[referrer_id] = referrer_user
+
+        save_visitor_data(all_data)
+        
+        return jsonify({"status": "ok", "message": "Реферальный код успешно активирован."})
+
+    except Exception as e:
+        logging.exception("Error in /api/activate_referral")
+        return jsonify({"status": "error", "message": "Внутренняя ошибка сервера."}), 500
 
 @app.route('/admin/add_client', methods=['POST'])
 def add_client():
@@ -1950,10 +1932,8 @@ def add_client():
         
         all_data = load_visitor_data()
 
-        # Check for existing phone number, excluding the 'organization_details' key
         for key, user in all_data.items():
-            if key == "organization_details":
-                continue
+            if key == "organization_details": continue
             if user.get('phone_number') == phone_number:
                 return jsonify({"status": "error", "message": "Клиент с таким номером телефона уже существует."}), 409
 
@@ -1961,25 +1941,14 @@ def add_client():
         new_id = generate_unique_id(all_data)
         
         new_client = {
-            'id': new_id,
-            'telegram_id': None,
-            'first_name': first_name,
-            'last_name': None,
-            'username': None,
-            'photo_url': None,
-            'language_code': 'ru',
-            'is_premium': False,
-            'phone_number': phone_number,
-            'visited_at': now.timestamp(),
-            'visited_at_str': now.strftime('%Y-%m-%d %H:%M:%S'),
-            'bonuses': 0,
-            'history': [],
-            'debts': 0,
-            'debt_history': [],
-            'invoices': [] # Initialize invoices for new manual client
+            'id': new_id, 'telegram_id': None, 'first_name': first_name, 'last_name': None, 'username': None,
+            'photo_url': None, 'language_code': 'ru', 'is_premium': False, 'phone_number': phone_number,
+            'visited_at': now.timestamp(), 'visited_at_str': now.strftime('%Y-%m-%d %H:%M:%S'),
+            'bonuses': 0, 'history': [], 'debts': 0, 'debt_history': [], 'invoices': [],
+            'referral_code': generate_referral_code(all_data), 'referred_by_user_id': None, 'referrals': []
         }
         
-        all_data[new_id] = new_client # Update the global cache
+        all_data[new_id] = new_client
         save_visitor_data(all_data)
 
         return jsonify({"status": "ok", "message": "Client added successfully"}), 201
@@ -1988,7 +1957,6 @@ def add_client():
         logging.exception("Error in /admin/add_client endpoint")
         return jsonify({"status": "error", "message": str(e)}), 500
 
-
 @app.route('/admin/add_transaction', methods=['POST'])
 def add_transaction():
     try:
@@ -2019,50 +1987,45 @@ def add_transaction():
         if repay_debt_amount > user.get('debts', 0):
             return jsonify({"status": "error", "message": "Сумма погашения превышает текущий долг"}), 400
 
-        # Bonus operations
         accrual_amount = purchase_amount * 0.02
         user['bonuses'] = round(user.get('bonuses', 0) + accrual_amount - deduct_amount, 2)
-        if 'history' not in user or not isinstance(user['history'], list):
-            user['history'] = []
+        if 'history' not in user or not isinstance(user['history'], list): user['history'] = []
 
         if accrual_amount > 0:
-            user['history'].append({
-                "type": "accrual", "amount": round(accrual_amount, 2),
-                "description": f"Начисление с покупки {round(purchase_amount, 2)}",
-                "date": now_iso, "date_str": now_str
-            })
+            user['history'].append({"type": "accrual", "amount": round(accrual_amount, 2), "description": f"Начисление с покупки {round(purchase_amount, 2)}", "date": now_iso, "date_str": now_str})
         if deduct_amount > 0:
-            user['history'].append({
-                "type": "deduction", "amount": round(deduct_amount, 2),
-                "description": "Списание бонусов",
-                "date": now_iso, "date_str": now_str
-            })
+            user['history'].append({"type": "deduction", "amount": round(deduct_amount, 2), "description": "Списание бонусов", "date": now_iso, "date_str": now_str})
 
-        # Debt operations
         user['debts'] = round(user.get('debts', 0) + add_debt_amount - repay_debt_amount, 2)
-        if 'debt_history' not in user or not isinstance(user['debt_history'], list):
-            user['debt_history'] = []
+        if 'debt_history' not in user or not isinstance(user['debt_history'], list): user['debt_history'] = []
 
         if add_debt_amount > 0:
-            user['debt_history'].append({
-                "type": "accrual", "amount": round(add_debt_amount, 2),
-                "description": "Добавление долга",
-                "date": now_iso, "date_str": now_str
-            })
+            user['debt_history'].append({"type": "accrual", "amount": round(add_debt_amount, 2), "description": "Добавление долга", "date": now_iso, "date_str": now_str})
         if repay_debt_amount > 0:
-            user['debt_history'].append({
-                "type": "payment", "amount": round(repay_debt_amount, 2),
-                "description": "Погашение долга",
-                "date": now_iso, "date_str": now_str
-            })
+            user['debt_history'].append({"type": "payment", "amount": round(repay_debt_amount, 2), "description": "Погашение долга", "date": now_iso, "date_str": now_str})
+        
+        all_data[user_id_str] = user
+
+        org_details = all_data.get('organization_details', {})
+        referral_bonus_percentage = float(org_details.get('referral_bonus_percentage', 0))
+        if user.get('referred_by_user_id') and purchase_amount > 0 and referral_bonus_percentage > 0:
+            referrer_id = user['referred_by_user_id']
+            if referrer_id in all_data:
+                referrer_user = all_data[referrer_id]
+                referral_bonus = round(purchase_amount * (referral_bonus_percentage / 100), 2)
+                if referral_bonus > 0:
+                    referrer_user['bonuses'] = round(referrer_user.get('bonuses', 0) + referral_bonus, 2)
+                    if 'history' not in referrer_user or not isinstance(referrer_user['history'], list): referrer_user['history'] = []
+                    referrer_user['history'].append({
+                        "type": "accrual", "amount": referral_bonus,
+                        "description": f"Бонус от реферала {user.get('first_name', user_id_str)}",
+                        "date": now_iso, "date_str": now_str
+                    })
+                    all_data[referrer_id] = referrer_user
         
-        all_data[user_id_str] = user # Update the global cache
         save_visitor_data(all_data)
 
-        return jsonify({
-            "status": "ok", "message": "Transaction successful", 
-            "new_balance": user['bonuses'], "new_debt": user['debts']
-        }), 200
+        return jsonify({"status": "ok", "message": "Transaction successful", "new_balance": user['bonuses'], "new_debt": user['debts']}), 200
 
     except Exception as e:
         logging.exception("Error in /admin/add_transaction endpoint")
@@ -2076,10 +2039,8 @@ def add_invoice():
         total_amount = float(data.get('total_amount', 0))
         items = data.get('items', [])
 
-        if not user_id:
-            return jsonify({"status": "error", "message": "User ID is required"}), 400
-        if not items:
-            return jsonify({"status": "error", "message": "Необходимо добавить товары в накладную."}), 400
+        if not user_id: return jsonify({"status": "error", "message": "User ID is required"}), 400
+        if not items: return jsonify({"status": "error", "message": "Необходимо добавить товары в накладную."}), 400
         
         user_id_str = str(user_id)
         all_data = load_visitor_data()
@@ -2092,7 +2053,7 @@ def add_invoice():
         now_iso = now.isoformat()
         now_str = now.strftime('%Y-%m-%d %H:%M:%S')
 
-        invoice_id = str(uuid.uuid4().hex[:8]).upper() # Generate a short unique ID
+        invoice_id = str(uuid.uuid4().hex[:8]).upper()
 
         processed_items = []
         for item in items:
@@ -2100,23 +2061,14 @@ def add_invoice():
             qty = float(item.get('quantity', 0))
             u_price = float(item.get('unit_price', 0))
             i_total = round(qty * u_price, 2)
-            processed_items.append({
-                "product_name": p_name,
-                "quantity": qty,
-                "unit_price": u_price,
-                "item_total": i_total
-            })
+            processed_items.append({"product_name": p_name, "quantity": qty, "unit_price": u_price, "item_total": i_total})
 
         new_invoice = {
-            "invoice_id": invoice_id,
-            "date": now_iso,
-            "date_str": now_str,
-            "total_amount": round(total_amount, 2),
-            "items": processed_items
+            "invoice_id": invoice_id, "date": now_iso, "date_str": now_str,
+            "total_amount": round(total_amount, 2), "items": processed_items
         }
 
-        if 'invoices' not in user or not isinstance(user['invoices'], list):
-            user['invoices'] = []
+        if 'invoices' not in user or not isinstance(user['invoices'], list): user['invoices'] = []
         user['invoices'].append(new_invoice)
         
         all_data[user_id_str] = user
@@ -2163,20 +2115,18 @@ def delete_invoice():
         logging.exception("Error in /admin/delete_invoice endpoint")
         return jsonify({"status": "error", "message": str(e)}), 500
 
-
 @app.route('/admin/delete_client', methods=['POST'])
 def delete_client():
     try:
         data = request.get_json()
         user_id = data.get('user_id')
 
-        if not user_id:
-            return jsonify({"status": "error", "message": "User ID is required"}), 400
+        if not user_id: return jsonify({"status": "error", "message": "User ID is required"}), 400
 
         user_id_str = str(user_id)
-        all_data = load_visitor_data() # Load current state
+        all_data = load_visitor_data()
 
-        with _data_lock: # Ensure thread-safe modification of cache
+        with _data_lock:
             if user_id_str not in all_data or user_id_str == "organization_details":
                 return jsonify({"status": "error", "message": "User not found"}), 404
 
@@ -2184,10 +2134,9 @@ def delete_client():
             if user_to_delete.get('telegram_id') is not None:
                 return jsonify({"status": "error", "message": "Cannot delete a Telegram-linked user"}), 403
 
-            del all_data[user_id_str] # Modify the loaded data
+            del all_data[user_id_str]
 
             try:
-                # Save the modified all_data (which is visitor_data_cache)
                 with open(DATA_FILE, 'w', encoding='utf-8') as f:
                     json.dump(all_data, f, ensure_ascii=False, indent=4)
                 logging.info(f"User {user_id_str} deleted. Data saved to {DATA_FILE}.")
@@ -2217,16 +2166,15 @@ def save_organization_details():
     try:
         data = request.get_json()
         new_org_details = {
-            "name": data.get("name", ""),
-            "phone_numbers": data.get("phone_numbers", []),
-            "address": data.get("address", ""),
-            "whatsapp_link": data.get("whatsapp_link", ""),
-            "telegram_link": data.get("telegram_link", "")
+            "name": data.get("name", ""), "phone_numbers": data.get("phone_numbers", []),
+            "address": data.get("address", ""), "whatsapp_link": data.get("whatsapp_link", ""),
+            "telegram_link": data.get("telegram_link", ""),
+            "referral_bonus_percentage": data.get("referral_bonus_percentage", 0)
         }
         
         all_data = load_visitor_data()
         all_data['organization_details'] = new_org_details
-        save_visitor_data(all_data) # Save the entire updated cache
+        save_visitor_data(all_data)
 
         return jsonify({"status": "ok", "message": "Organization details saved successfully"}), 200
     except Exception as e:
@@ -2242,7 +2190,7 @@ if __name__ == '__main__':
          print("Attempting initial data download from Hugging Face...")
          download_data_from_hf()
 
-    load_visitor_data() # Ensure data is loaded into cache at startup
+    load_visitor_dat
 
     print("WARNING: The /admin route is NOT protected. Implement proper authentication for production.")