feat: 🎸 improve stop routine

Author: streamich

src/__demos__/json-crdt-server/routes/index.ts

@@ -44,7 +44,6 @@ export const createServices = async () => {
     const kv = new ClassicLevel<string, Uint8Array>(path, {valueEncoding: 'view'});
     await kv.open();
     store = new LevelStore(<any>kv);
-    await kv.close();
   }
   const services = new Services({store});
   return services;

src/__demos__/json-crdt-server/services/Services.ts

@@ -19,4 +19,8 @@ export class Services {
     this.presence = new PresenceService();
     this.blocks = new BlocksServices(this, store, blocks);
   }
+
+  async stop() {
+    await this.blocks.stop();
+  }
 }

src/__demos__/json-crdt-server/services/blocks/BlocksServices.ts

@@ -254,4 +254,8 @@ export class BlocksServices {
     if (blocksToDelete <= 0) return;
     await this.store.removeOldest(blocksToDelete);
   }
+
+  public async stop() {
+    await this.store.stop?.();
+  }
 }

src/__demos__/json-crdt-server/services/blocks/store/level/LevelStore.ts

@@ -288,4 +288,8 @@ export class LevelStore implements types.Store {
       } catch {}
     }
   }
+
+  public async stop() {
+    await this.kv.close();
+  }
 }

src/__demos__/json-crdt-server/services/blocks/store/types.ts

@@ -176,6 +176,8 @@ export interface Store {
    * @returns Number of blocks and batches.
    */
   stats(): {blocks: number; batches: number};
+
+  stop?(): Promise<void>;
 }
 
 export interface StoreCreateResult {