feat: configure workspace runtime secrets through API

backend/test/routes-workspaces.test.ts

@@ -1,5 +1,5 @@
 import { execFile } from "node:child_process";
-import { mkdtempSync, mkdirSync, rmSync, writeFileSync } from "node:fs";
+import { existsSync, mkdtempSync, mkdirSync, readFileSync, rmSync, writeFileSync } from "node:fs";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { promisify } from "node:util";
@@ -9,6 +9,7 @@ import { loadConfig } from "../src/config.js";
 import { createProductionWorkspaceDiagnoser } from "../src/workspaces/diagnostics.js";
 import { WorkspaceRegistry, type WorkspaceRevision } from "../src/workspaces/registry.js";
 import { serializeWorkspaceYaml, type CanonicalWorkspace } from "../src/workspaces/schema.js";
+import { WorkspaceSecretStore } from "../src/workspaces/secret-store.js";
 
 const workspace: CanonicalWorkspace = {
   workspace: {
@@ -72,6 +73,7 @@ function registryFake(overrides: Partial<RegistryFake> = {}): RegistryFake {
 function appFor(
   registry: RegistryFake,
   diagnose = vi.fn(async () => ({ activatable: true, diagnostics: [] })),
+  secretStore = testSecretStore(),
 ) {
   return buildApp(loadConfig({
     THT_HARNESS_DIR: "/missing-harness",
@@ -80,9 +82,19 @@ function appFor(
     thtRunner: {} as any,
     workspaceRegistry: registry as WorkspaceRegistry,
     workspaceDiagnoser: diagnose,
+    workspaceSecretStore: secretStore,
   } as any);
 }
 
+const secretStoreRoots: string[] = [];
+
+function testSecretStore(): WorkspaceSecretStore {
+  const root = mkdtempSync(join(tmpdir(), "thoth-route-secret-store-"));
+  const runtimeRoot = mkdtempSync(join(tmpdir(), "thoth-route-secret-runtime-"));
+  secretStoreRoots.push(root, runtimeRoot);
+  return new WorkspaceSecretStore({ root, runtimeRoot, installationId: "route-test" });
+}
+
 test("returns a redacted registry status and pulls without Git credential details", async () => {
   const registry = registryFake({
     bootstrap: vi.fn(async () => ({
@@ -126,7 +138,7 @@ test("lists workspace summaries and reads a validated immutable workspace", asyn
   expect(list.json()).toEqual([expect.objectContaining({
     id: "psd-clinical",
     displayName: "Policlinico San Donato",
-    configurationState: "ready",
+    configurationState: "configuration_required",
     revision,
   })]);
   expect(read.statusCode).toBe(200);
@@ -174,6 +186,89 @@ test("runs diagnostics for a schema v3 workspace", async () => {
   }, { writeProbe: false });
 });
 
+test("reports runtime secret requirements without returning stored values", async () => {
+  const secretStore = testSecretStore();
+  const app = appFor(registryFake(), undefined, secretStore);
+
+  const missing = await app.inject({
+    method: "GET", url: "/workspaces/psd-clinical/runtime-configuration",
+  });
+  expect(missing.statusCode).toBe(200);
+  expect(missing.json()).toMatchObject({
+    workspaceId: "psd-clinical",
+    revision,
+    configurationState: "configuration_required",
+    requirements: [{
+      id: "dwh.password",
+      connector: "dwh",
+      label: "Data warehouse password",
+      required: true,
+      configured: false,
+    }],
+  });
+
+  const secret = "never-return-this-password";
+  const save = await app.inject({
+    method: "PUT",
+    url: "/workspaces/psd-clinical/secrets",
+    payload: { values: { "dwh.password": secret } },
+  });
+  expect(save.statusCode).toBe(200);
+  expect(save.body).not.toContain(secret);
+  expect(save.json()).toMatchObject({
+    configurationState: "ready",
+    requirements: [{ id: "dwh.password", configured: true }],
+  });
+
+  const configured = await app.inject({
+    method: "GET", url: "/workspaces/psd-clinical/runtime-configuration",
+  });
+  expect(configured.body).not.toContain(secret);
+  expect(configured.json()).toMatchObject({ configurationState: "ready" });
+});
+
+test("rejects undeclared secret identifiers and supports forgetting a configured secret", async () => {
+  const secretStore = testSecretStore();
+  const app = appFor(registryFake(), undefined, secretStore);
+
+  const unknown = await app.inject({
+    method: "PUT",
+    url: "/workspaces/psd-clinical/secrets",
+    payload: { values: { "evidence.secret_key": "not-applicable" } },
+  });
+  expect(unknown.statusCode).toBe(400);
+  expect(secretStore.configured("psd-clinical")).toEqual([]);
+
+  secretStore.put("psd-clinical", "dwh.password", "temporary-password");
+  const forget = await app.inject({
+    method: "DELETE",
+    url: "/workspaces/psd-clinical/secrets/dwh.password",
+  });
+  expect(forget.statusCode).toBe(200);
+  expect(forget.json()).toMatchObject({ configurationState: "configuration_required" });
+  expect(secretStore.has("psd-clinical", "dwh.password")).toBe(false);
+});
+
+test("materializes stored secrets only for the diagnostic lease", async () => {
+  const secretStore = testSecretStore();
+  secretStore.put("psd-clinical", "dwh.password", "diagnostic-password");
+  let materializedPath = "";
+  const diagnose = vi.fn(async (_workspace, bindings) => {
+    materializedPath = bindings.dwh.values.THT_WS_PSD_CLINICAL_DWH_PASSWORD_FILE;
+    expect(readFileSync(materializedPath, "utf8")).toBe("diagnostic-password");
+    return { activatable: true, diagnostics: [] };
+  });
+  const app = appFor(registryFake(), diagnose, secretStore);
+
+  const response = await app.inject({
+    method: "POST", url: "/workspaces/psd-clinical/test", payload: {},
+  });
+
+  expect(response.statusCode).toBe(200);
+  expect(materializedPath).not.toBe("");
+  expect(existsSync(materializedPath)).toBe(false);
+});
+
 test("reports a missing Evidence credential without changing the registry revision", async () => {
   const evidenceWorkspace: CanonicalWorkspace = {
     ...workspace,
@@ -282,6 +377,7 @@ async function createRealRouteFixture() {
 
 afterEach(() => {
   realRouteRoots.splice(0).forEach((root) => rmSync(root, { recursive: true, force: true }));
+  secretStoreRoots.splice(0).forEach((root) => rmSync(root, { recursive: true, force: true }));
 });
 
 test("a failed candidate pull keeps the last valid active workspace", async () => {