feat: use worker relay for events cache

packages/worker-relay/src/interface.ts

@@ -56,6 +56,10 @@ export class WorkerRelayInterface {
     return (await this.#workerRpc<void, Uint8Array>("dumpDb")).result;
   }
 
+  async sql(sql: string, params: Array<string | number>) {
+    return (await this.#workerRpc<object, Array<Array<any>>>("sql", { sql, params })).result;
+  }
+
   #workerRpc<T, R>(cmd: string, args?: T, timeout = 30_000) {
     const id = uuid();
     const msg = {

packages/worker-relay/src/relay.ts

@@ -83,10 +83,18 @@ export class WorkerRelay extends EventEmitter<WorkerRelayEvents> {
     return eventInserted;
   }
 
+  /**
+   * Run any SQL command
+   */
+  sql(sql: string, params: Array<any>) {
+    return this.#db?.selectArrays(sql, params);
+  }
+
   /**
    * Write multiple events
    */
   eventBatch(evs: Array<NostrEvent>) {
+    const start = unixNowMs();
     let eventsInserted: Array<NostrEvent> = [];
     this.#db?.transaction(db => {
       for (const ev of evs) {
@@ -96,7 +104,7 @@ export class WorkerRelay extends EventEmitter<WorkerRelayEvents> {
       }
     });
     if (eventsInserted.length > 0) {
-      this.#log(`Inserted Batch: ${eventsInserted.length}/${evs.length}`);
+      this.#log(`Inserted Batch: ${eventsInserted.length}/${evs.length}, ${(unixNowMs() - start).toLocaleString()}ms`);
       this.emit("event", eventsInserted);
     }
     return eventsInserted.length > 0;
@@ -169,7 +177,7 @@ export class WorkerRelay extends EventEmitter<WorkerRelayEvents> {
     const res = this.#db?.selectArrays(sql, params);
     const results = res?.map(a => JSON.parse(a[0] as string) as NostrEvent) ?? [];
     const time = unixNowMs() - start;
-    //this.#log(`Query ${id} results took ${time.toLocaleString()}ms`);
+    this.#log(`Query ${id} results took ${time.toLocaleString()}ms`);
     return results;
   }
 

packages/worker-relay/src/types.ts

@@ -1,6 +1,6 @@
 export interface WorkerMessage<T> {
   id: string;
-  cmd: "reply" | "init" | "open" | "migrate" | "event" | "req" | "count" | "summary" | "close" | "dumpDb";
+  cmd: "reply" | "init" | "open" | "migrate" | "event" | "req" | "count" | "summary" | "close" | "dumpDb" | "sql";
   args: T;
 }
 

packages/worker-relay/src/worker.ts

@@ -138,6 +138,17 @@ globalThis.onmessage = ev => {
         });
         break;
       }
+      case "sql": {
+        barrierQueue(cmdQueue, async () => {
+          const req = msg.args as {
+            sql: string;
+            params: Array<any>;
+          };
+          const res = relay.sql(req.sql, req.params);
+          reply(msg.id, res);
+        });
+        break;
+      }
       default: {
         reply(msg.id, { error: "Unknown command" });
         break;