Check if a listing is still active (#184)

* check if a listing is still active

* upgrade dependencies

lib/services/storage/listingsStorage.js

@@ -53,6 +53,36 @@ export const getKnownListingHashesForJobAndProvider = (jobId, providerId) => {
   ).map((r) => r.hash);
 };
 
+/**
+ * Return a list of listing that either are active or have an unknown status
+ * to constantly check if they are still online
+ *
+ * @returns {string[]} Array of listings
+ */
+export const getActiveOrUnknownListings = () => {
+  return SqliteConnection.query(
+    `SELECT *
+     FROM listings
+     WHERE is_active is null OR is_active = 1 ORDER BY provider`,
+  );
+};
+
+/**
+ * Deactivates listings by setting is_active = 0 for all matching IDs.
+ *
+ * @param {string[]} ids - Array of listing IDs to deactivate.
+ * @returns {object[]} Result of the SQLite query execution.
+ */
+export const deactivateListings = (ids) => {
+  const placeholders = ids.map(() => '?').join(',');
+  return SqliteConnection.execute(
+    `UPDATE listings
+     SET is_active = 0
+     WHERE id IN (${placeholders})`,
+    ids,
+  );
+};
+
 /**
  * Persist a batch of scraped listings for a given job and provider.
  *
@@ -86,9 +116,9 @@ export const storeListings = (jobId, providerId, listings) => {
   SqliteConnection.withTransaction((db) => {
     const stmt = db.prepare(
       `INSERT INTO listings (id, hash, provider, job_id, price, size, title, image_url, description, address,
-                             link, created_at)
+                             link, created_at, is_active)
        VALUES (@id, @hash, @provider, @job_id, @price, @size, @title, @image_url, @description, @address, @link,
-               @created_at)
+               @created_at, 1)
        ON CONFLICT(job_id, hash) DO NOTHING`,
     );
 

lib/services/storage/migrations/sql/2.active-flag-for-listings.js

@@ -0,0 +1,8 @@
+// Migration: there needs to be a unique index on job_id and hash as only
+// this makes the listing indeed unique
+
+export function up(db) {
+  db.exec(`
+    ALTER TABLE listings ADD COLUMN is_active INTEGER DEFAULT 1;
+  `);
+}