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src/providers/sqlite3/downgrade/4_to_3.js

@@ -0,0 +1,28 @@
+/**
+ * Schema 4 → 3 (SQLite):
+ * - Drops agentprinter table
+ * - Removes enabled from printeragent
+ * - Restores clientserial, clientmodel, clientstate in printeragent
+ * @param {{ exec: (sql: string) => void, assertVersion: (v: number) => Promise<void>, setVersion: (v: number) => Promise<void> }} ctx
+ */
+export default async function downgrade({ exec, assertVersion, setVersion }) {
+  await assertVersion(4);
+
+  exec(`DROP TABLE IF EXISTS agentprinter;`);
+
+  try {
+    exec(`ALTER TABLE printeragent DROP COLUMN enabled;`);
+  } catch {}
+  try {
+    exec(`ALTER TABLE printeragent ADD COLUMN clientserial TEXT;`);
+  } catch {}
+  try {
+    exec(`ALTER TABLE printeragent ADD COLUMN clientmodel TEXT;`);
+  } catch {}
+  try {
+    exec(`ALTER TABLE printeragent ADD COLUMN clientstate TEXT;`);
+  } catch {}
+
+  await setVersion(3);
+}
+