Creating a mechanism to store settings both in the database and in redux.

src/db/index.ts

@@ -1,17 +1,22 @@
-import _ from 'lodash';
+import _, { constant } from 'lodash';
+import uri from '../lib/ids';
 
-const DBDEFINITION = '--db-definition--';
+const dbDefinitionId = uri('dbdef', {});
 
-const dbDefinition = {
-  _id: DBDEFINITION,
-  type: DBDEFINITION,
-  version: '0.000001',
+const currentDbDefinition = {
+  _id: dbDefinitionId,
+  type: dbDefinitionId,
+  def: { version: '0.000001' },
 };
 
 export const initDb = async (db: any, setDbReady: any) => {
+  var previousDbDefinition = {
+    _id: dbDefinitionId,
+    type: dbDefinitionId,
+    def: { version: '0' },
+  };
   try {
-    await db.get(DBDEFINITION);
-    // TODO: support migrations
+    previousDbDefinition = await db.get(dbDefinitionId);
   } catch (error: any) {
     if (error.status !== 404) {
       console.log(
@@ -21,6 +26,11 @@ export const initDb = async (db: any, setDbReady: any) => {
     }
   }
 
+  if (previousDbDefinition.def.version < currentDbDefinition.def.version) {
+    previousDbDefinition.def = currentDbDefinition.def;
+    db.put(previousDbDefinition);
+    // TODO: support migrations
+  }
   await await db.compact();
   await db.viewCleanup();