revamp core api + option to use nostr-wasm instead of noble-curves.

wasm.ts

@@ -0,0 +1,38 @@
+import { bytesToHex } from '@noble/hashes/utils'
+import { Nostr as NostrWasm } from 'nostr-wasm'
+import { EventTemplate, Event, Nostr, VerifiedEvent, verifiedSymbol } from './core'
+
+let nw: NostrWasm
+
+export function setNostrWasm(x: NostrWasm) {
+  nw = x
+}
+
+class Wasm implements Nostr {
+  generateSecretKey(): Uint8Array {
+    return nw.generateSecretKey()
+  }
+  getPublicKey(secretKey: Uint8Array): string {
+    return bytesToHex(nw.getPublicKey(secretKey))
+  }
+  finalizeEvent(t: EventTemplate, secretKey: Uint8Array): VerifiedEvent {
+    nw.finalizeEvent(t as any, secretKey)
+    return t as VerifiedEvent
+  }
+  verifyEvent(event: Event): event is VerifiedEvent {
+    try {
+      nw.verifyEvent(event)
+      event[verifiedSymbol] = true
+      return true
+    } catch (err) {
+      return false
+    }
+  }
+}
+
+const i = new Wasm()
+export const generateSecretKey = i.generateSecretKey
+export const getPublicKey = i.getPublicKey
+export const finalizeEvent = i.finalizeEvent
+export const verifyEvent = i.verifyEvent
+export * from './core.ts'