condition check lambda

lambdas/conditionCheckReminder/queries.js

@@ -0,0 +1,22 @@
+const { query } = require("../shared/db/connection");
+
+/**
+ * Check if a condition check already exists for a rental and check type.
+ * @param {string} rentalId - UUID of the rental
+ * @param {string} checkType - Type of check (pre_rental_owner, rental_start_renter, etc.)
+ * @returns {Promise<boolean>} True if a condition check exists
+ */
+async function conditionCheckExists(rentalId, checkType) {
+  const result = await query(
+    `SELECT id FROM "ConditionChecks"
+     WHERE "rentalId" = $1 AND "checkType" = $2
+     LIMIT 1`,
+    [rentalId, checkType]
+  );
+
+  return result.rows.length > 0;
+}
+
+module.exports = {
+  conditionCheckExists,
+};