feat: added daily limit feature

src/services/paymentLimit.service.js

@@ -0,0 +1,28 @@
+const db = require('../config/db');
+
+async function getDailyLimit(customerNo, clientType) {
+  if (clientType !== 'IB' && clientType !== 'MB') {
+    throw new Error('Invalid client type. IB and MB accepted');
+  }
+
+  let query = '';
+  if (clientType === 'IB') {
+    query = `SELECT inb_limit_amount AS daily_limit FROM users WHERE customer_no = $1`;
+  } else {
+    query = `SELECT mobile_limit_amount AS daily_limit FROM users WHERE customer_no = $1`;
+  }
+
+  const result = await db.query(query, [customerNo]);
+  return result.rows[0].daily_limit;
+}
+
+async function getUsedLimit(customerNo, clientType) {
+  if (clientType !== 'IB' && clientType !== 'MB') {
+    throw new Error('Invalid client type. IB and MB accepted');
+  }
+  let query = `SELECT SUM(amount) AS used_limit FROM transactions WHERE created_at BETWEEN CURRENT_DATE AND (CURRENT_DATE + INTERVAL '1 day') AND customer_no = $1 AND client = $2`;
+  const result = await db.query(query, [customerNo, clientType]);
+  return result.rows[0].used_limit;
+}
+
+module.exports = { getDailyLimit, getUsedLimit };