Implement overproduction notification handling in ProduceWorker: Add logic to check for existing notifications and update them if necessary, or create a new notification if none exist. Introduce SQL queries for finding and updating overproduction notifications to enhance database interactions.

src/worker/sql.rs

@@ -1452,6 +1452,31 @@ pub const QUERY_ADD_OVERPRODUCTION_NOTIFICATION: &str = r#"
     ) VALUES ($1, $2, FALSE, NOW(), NOW());
 "#;
 
+pub const QUERY_UPDATE_OVERPRODUCTION_NOTIFICATION: &str = r#"
+    UPDATE falukant_log.notification
+       SET tr = jsonb_set(
+               tr::jsonb,
+               '{value}',
+               to_jsonb(COALESCE((tr::jsonb->>'value')::int, 0) + $3)
+           )::text,
+           updated_at = NOW()
+     WHERE user_id = $1
+       AND shown = FALSE
+       AND tr::text LIKE '%"tr":"production.overproduction"%'
+       AND (tr::jsonb->>'branch_id')::int = $2;
+"#;
+
+pub const QUERY_FIND_OVERPRODUCTION_NOTIFICATION: &str = r#"
+    SELECT id, tr
+      FROM falukant_log.notification
+     WHERE user_id = $1
+       AND shown = FALSE
+       AND tr::text LIKE '%"tr":"production.overproduction"%'
+       AND (tr::jsonb->>'branch_id')::int = $2
+     ORDER BY created_at DESC
+     LIMIT 1;
+"#;
+
 // Aliases for personal variants (keeps original prepared statement names used in events.worker)
 pub const QUERY_REDUCE_INVENTORY_PERSONAL: &str = QUERY_REDUCE_INVENTORY;
 pub const QUERY_DELETE_INVENTORY_PERSONAL: &str = QUERY_DELETE_INVENTORY;