feat: initial commit - finance tracker with telegram bot

2026-11-09 09:35:10 +00:00 · 2026-07-16 09:52:36 +05:00
commit be747f827c
28 changed files with 7641 additions and 0 deletions
@@ -0,0 +1,106 @@
+import { getDb } from './db.js';
+
+// Helper to add months or years to a date string (YYYY-MM-DD)
+function advanceDate(dateStr, period) {
+  const date = new Date(dateStr);
+  if (period === 'yearly') {
+    date.setFullYear(date.getFullYear() + 1);
+  } else {
+    date.setMonth(date.getMonth() + 1);
+  }
+  return date.toISOString().slice(0, 10);
+}
+
+export async function checkSubscriptions(bot) {
+  if (!bot) {
+    console.log('Scheduler: Bot is not initialized. Skipping subscription checks.');
+    return;
+  }
+
+  console.log('🕰️ Running scheduled subscription checks...');
+  const db = getDb();
+  
+  const todayStr = new Date().toISOString().slice(0, 10);
+  
+  // Calculate tomorrow's date
+  const tomorrow = new Date();
+  tomorrow.setDate(tomorrow.getDate() + 1);
+  const tomorrowStr = tomorrow.toISOString().slice(0, 10);
+
+  try {
+    // 1. Pre-notification for tomorrow's payments
+    const upcomingSubs = await db.all(
+      'SELECT * FROM subscriptions WHERE active = 1 AND next_payment_date = ?',
+      tomorrowStr
+    );
+
+    for (const sub of upcomingSubs) {
+      try {
+        await bot.telegram.sendMessage(
+          sub.user_id,
+          `🔔 **Напоминание о подписке!**\n\nЗавтра ожидается оплата подписки *${sub.name}* на сумму *${sub.amount} ₽*.`,
+          { parse_mode: 'Markdown' }
+        );
+        console.log(`Sent upcoming subscription warning to user ${sub.user_id} for sub: ${sub.name}`);
+      } catch (err) {
+        console.error(`Failed to send Telegram message to user ${sub.user_id}:`, err.message);
+      }
+    }
+
+    // 2. Process today's payments (Notify + Log Expense + Advance Date)
+    const todaySubs = await db.all(
+      'SELECT * FROM subscriptions WHERE active = 1 AND next_payment_date <= ?',
+      todayStr
+    );
+
+    for (const sub of todaySubs) {
+      try {
+        await db.run('BEGIN TRANSACTION');
+
+        // 1. Log transaction expense
+        await db.run(
+          'INSERT INTO transactions (user_id, type, amount, category, description, date) VALUES (?, ?, ?, ?, ?, ?)',
+          sub.user_id, 'expense', sub.amount, 'Развлечения', `Подписка: ${sub.name}`, todayStr
+        );
+
+        // 2. Advance next payment date
+        const newPaymentDate = advanceDate(sub.next_payment_date, sub.period);
+        await db.run(
+          'UPDATE subscriptions SET next_payment_date = ? WHERE id = ?',
+          newPaymentDate, sub.id
+        );
+
+        await db.run('COMMIT');
+
+        // 3. Notify user in Telegram
+        await bot.telegram.sendMessage(
+          sub.user_id,
+          `📅 **Списание по подписке!**\n\nСегодня оплачена подписка *${sub.name}* на сумму *${sub.amount} ₽*.\n` +
+          `💸 Расход автоматически добавлен в историю.\n` +
+          `📆 Следующий платеж запланирован на: *${newPaymentDate}*`,
+          { parse_mode: 'Markdown' }
+        );
+        console.log(`Processed subscription payment for sub: ${sub.name}, advanced to: ${newPaymentDate}`);
+      } catch (err) {
+        try { await db.run('ROLLBACK'); } catch (_) {}
+        console.error(`Failed to process payment for subscription ${sub.name} (${sub.id}):`, err);
+      }
+    }
+  } catch (err) {
+    console.error('Error checking subscriptions:', err);
+  }
+}
+
+// Start daily check intervals
+export function startScheduler(bot) {
+  // Run check immediately on start
+  setTimeout(() => checkSubscriptions(bot), 5000);
+
+  // Run checks every 12 hours (12 * 60 * 60 * 1000 ms)
+  const intervalMs = 12 * 60 * 60 * 1000;
+  setInterval(() => {
+    checkSubscriptions(bot);
+  }, intervalMs);
+
+  console.log('⏰ Subscription scheduler successfully started (checks every 12 hours).');
+}