✨ (signer-solana): Add solana SignMessageUseCase

.changeset/tender-starfishes-cover.md

@@ -0,0 +1,5 @@
+---
+"@ledgerhq/device-signer-kit-solana": patch
+---
+
+Added Solana SignMessageUseCase

packages/signer/signer-solana/src/internal/app-binder/SolanaAppBinder.test.ts

@@ -1,8 +1,10 @@
 import {
+  type DeviceActionIntermediateValue,
   type DeviceActionState,
   DeviceActionStatus,
   type DeviceManagementKit,
   type DeviceSessionId,
+  type DmkError,
   SendCommandInAppDeviceAction,
   UserInteractionRequired,
 } from "@ledgerhq/device-management-kit";
@@ -15,6 +17,7 @@ import {
 } from "@api/index";
 
 import { GetPubKeyCommand } from "./command/GetPubKeyCommand";
+import { SignMessageDeviceAction } from "./device-action/SignPersonalMessage/SignMessageDeviceAction";
 import { SolanaAppBinder } from "./SolanaAppBinder";
 
 describe("SolanaAppBinder", () => {
@@ -147,4 +150,98 @@ describe("SolanaAppBinder", () => {
       });
     });
   });
+  describe("SolanaAppBinder", () => {
+    const mockedDmk: DeviceManagementKit = {
+      sendCommand: jest.fn(),
+      executeDeviceAction: jest.fn(),
+    } as unknown as DeviceManagementKit;
+
+    beforeEach(() => {
+      jest.clearAllMocks();
+    });
+
+    it("should be defined", () => {
+      const binder = new SolanaAppBinder(
+        {} as DeviceManagementKit,
+        {} as DeviceSessionId,
+      );
+      expect(binder).toBeDefined();
+    });
+
+    describe("signMessage", () => {
+      it("should return the signed message", (done) => {
+        // GIVEN
+        const signedMessage = new Uint8Array([0x1c, 0x8a, 0x54, 0x05, 0x10]); // Example signed message data
+        const signMessageArgs = {
+          derivationPath: "44'/501'",
+          message: "Hello world",
+        };
+
+        jest.spyOn(mockedDmk, "executeDeviceAction").mockReturnValue({
+          observable: from([
+            {
+              status: DeviceActionStatus.Completed,
+              output: signedMessage,
+            } as DeviceActionState<
+              Uint8Array,
+              DmkError,
+              DeviceActionIntermediateValue
+            >,
+          ]),
+          cancel: jest.fn(),
+        });
+
+        // WHEN
+        const appBinder = new SolanaAppBinder(mockedDmk, "sessionId");
+        const { observable } = appBinder.signMessage(signMessageArgs);
+
+        // THEN
+        const states: DeviceActionState<Uint8Array, unknown, unknown>[] = [];
+        observable.subscribe({
+          next: (state) => {
+            states.push(state);
+          },
+          error: (err) => {
+            done(err);
+          },
+          complete: () => {
+            try {
+              expect(states).toEqual([
+                {
+                  status: DeviceActionStatus.Completed,
+                  output: signedMessage,
+                },
+              ]);
+              done();
+            } catch (err) {
+              done(err);
+            }
+          },
+        });
+      });
+
+      it("should call executeDeviceAction with correct parameters", () => {
+        // GIVEN
+        const signMessageArgs = {
+          derivationPath: "44'/501'",
+          message: "Hello world",
+        };
+
+        // WHEN
+        const appBinder = new SolanaAppBinder(mockedDmk, "sessionId");
+        appBinder.signMessage(signMessageArgs);
+
+        // THEN
+        expect(mockedDmk.executeDeviceAction).toHaveBeenCalledWith({
+          sessionId: "sessionId",
+          deviceAction: new SignMessageDeviceAction({
+            input: {
+              derivationPath: signMessageArgs.derivationPath,
+              message: signMessageArgs.message,
+            },
+          }),
+        });
+      });
+    });
+  });
 });

packages/signer/signer-solana/src/internal/app-binder/SolanaAppBinder.ts

@@ -14,6 +14,7 @@ import { Transaction } from "@api/model/Transaction";
 import { externalTypes } from "@internal/externalTypes";
 
 import { GetPubKeyCommand } from "./command/GetPubKeyCommand";
+import { SignMessageDeviceAction } from "./device-action/SignPersonalMessage/SignMessageDeviceAction";
 
 @injectable()
 export class SolanaAppBinder {
@@ -47,11 +48,19 @@ export class SolanaAppBinder {
     return {} as SignTransactionDAReturnType;
   }
 
-  signMessage(_args: {
+  signMessage(args: {
     derivationPath: string;
     message: string;
   }): SignMessageDAReturnType {
-    return {} as SignMessageDAReturnType;
+    return this.dmk.executeDeviceAction({
+      sessionId: this.sessionId,
+      deviceAction: new SignMessageDeviceAction({
+        input: {
+          derivationPath: args.derivationPath,
+          message: args.message,
+        },
+      }),
+    });
   }
 
   getAppConfiguration(): GetAppConfigurationDAReturnType {