make settings keys unique

src/db/database.sql

@@ -122,6 +122,6 @@ CREATE TABLE IF NOT EXISTS feedback (
 
 -- settings
 CREATE TABLE IF NOT EXISTS settings (
-    name VARCHAR(255) NOT NULL,
+    name VARCHAR(255) UNIQUE NOT NULL,
     value TEXT NOT NULL
 );

src/db/schema/settings.ts

@@ -32,7 +32,17 @@ export async function getSettings(db: Database, values: GetSettingsReq) {
 }
 
 export async function setSettings(db: Database, values: SetSettingsReq) {
-  await db.insert(settings).values(values.settings);
+  return db.transaction(async (tx) => {
+    for (const setting of values.settings) {
+      tx.insert(settings)
+        .values(setting)
+        .onDuplicateKeyUpdate({
+          set: {
+            value: setting.value
+          }
+        });
+    }
+  });
 }
 
 export async function getSetting(db: Database, values: GetSettingReq): Promise<string | null> {