Merge pull request #369 from charlesedeh021-cell/feat/hana-rabet-adapters-233

feat(wallet): add HanaAdapter implementation (#233)

Author: Just-Bamford

src/wallet/adapters/hana.ts

@@ -0,0 +1,66 @@
+/**
+ * Hana wallet adapter.
+ *
+ * Hana is a Stellar-compatible extension wallet.
+ * Wraps the SWK instance provided by the consumer.
+ */
+
+import { WalletType } from "../types";
+import type {
+  WalletAdapter,
+  SignTransactionInput,
+  SWKInstance,
+} from "../types";
+import { ok, err, SorokitErrorCode } from "../../shared/response";
+import type { SorokitResult } from "../../shared/response";
+import { isBrowser } from "../../shared";
+import { swkSignTransaction, describeSignFailure } from "./swkSign";
+
+function describeHanaFailure(action: "connection" | "signing", cause: unknown): string {
+  return describeSignFailure("Hana", action, cause);
+}
+
+export class HanaAdapter implements WalletAdapter {
+  readonly walletType = WalletType.HANA;
+
+  constructor(private readonly kit: SWKInstance) {}
+
+  isAvailable(): boolean {
+    return isBrowser();
+  }
+
+  async connect(): Promise<SorokitResult<string>> {
+    if (!this.isAvailable()) {
+      return err(
+        SorokitErrorCode.WALLET_BROWSER_ONLY,
+        "Hana requires a browser environment.",
+      );
+    }
+    try {
+      const { address } = await this.kit.getAddress();
+      return ok(address);
+    } catch (cause) {
+      return err(
+        SorokitErrorCode.WALLET_CONNECT_FAILED,
+        describeHanaFailure("connection", cause),
+        cause,
+      );
+    }
+  }
+
+  async disconnect(): Promise<SorokitResult<undefined>> {
+    return ok(undefined);
+  }
+
+  async signTransaction(
+    input: SignTransactionInput,
+  ): Promise<SorokitResult<string>> {
+    if (!this.isAvailable()) {
+      return err(
+        SorokitErrorCode.WALLET_BROWSER_ONLY,
+        "Hana requires a browser environment.",
+      );
+    }
+    return swkSignTransaction(this.kit, "Hana", input);
+  }
+}

src/wallet/adapters/index.ts

@@ -1,3 +1,4 @@
 export { FreighterAdapter } from "./freighter";
 export { XBullAdapter } from "./xbull";
 export { LobstrAdapter } from "./lobstr";
+export { HanaAdapter } from "./hana";