global: private xpub support part 2

2026-07-18 22:48:10 -07:00 · 2026-06-17 11:25:42 +02:00
parent 0c7861071d
commit 43df9e098c
68 changed files with 1836 additions and 1653 deletions
@@ -0,0 +1,57 @@
+import { scanWalletAddresses } from "../scan/index.js";
+
+/**
+ * @typedef {import("../scan/index.js").WalletScan} WalletScan
+ * @typedef {import("../scan/index.js").WalletScanClient} WalletScanClient
+ * @typedef {import("../scan/index.js").WalletScanProgress} WalletScanProgress
+ * @typedef {import("../derive/address.js").AddressScript} AddressScript
+ *
+ * @typedef {Object} LoadOptions
+ * @property {WalletScanClient} client
+ * @property {AddressScript} script
+ * @property {(progress: WalletScanProgress) => void} [onProgress]
+ */
+
+/**
+ * @param {string} source
+ */
+export function createRuntime(source) {
+  /** @type {WalletScan | undefined} */
+  let scan;
+  /** @type {Promise<WalletScan> | undefined} */
+  let pending;
+
+  /**
+   * @param {LoadOptions} options
+   */
+  function load(options) {
+    if (scan) return Promise.resolve(scan);
+
+    if (!pending) {
+      pending = scanWalletAddresses({
+        client: options.client,
+        source,
+        script: options.script,
+        onProgress: options.onProgress,
+      }).then((nextScan) => {
+        scan = nextScan;
+        pending = undefined;
+
+        return nextScan;
+      }, (error) => {
+        pending = undefined;
+
+        throw error;
+      });
+    }
+
+    return pending;
+  }
+
+  return {
+    get scan() {
+      return scan;
+    },
+    load,
+  };
+}