refactor: extract config generation startup flow

src/core/services/config-generation-runtime-service.test.ts

@@ -0,0 +1,67 @@
+import test from "node:test";
+import assert from "node:assert/strict";
+import { runGenerateConfigFlowRuntimeService } from "./config-generation-runtime-service";
+import { CliArgs } from "../../cli/args";
+
+function makeArgs(overrides: Partial<CliArgs> = {}): CliArgs {
+  return {
+    start: false,
+    stop: false,
+    toggle: false,
+    toggleVisibleOverlay: false,
+    toggleInvisibleOverlay: false,
+    settings: false,
+    show: false,
+    hide: false,
+    showVisibleOverlay: false,
+    hideVisibleOverlay: false,
+    showInvisibleOverlay: false,
+    hideInvisibleOverlay: false,
+    copySubtitle: false,
+    copySubtitleMultiple: false,
+    mineSentence: false,
+    mineSentenceMultiple: false,
+    updateLastCardFromClipboard: false,
+    toggleSecondarySub: false,
+    triggerFieldGrouping: false,
+    triggerSubsync: false,
+    markAudioCard: false,
+    openRuntimeOptions: false,
+    texthooker: false,
+    help: false,
+    autoStartOverlay: false,
+    generateConfig: false,
+    backupOverwrite: false,
+    verbose: false,
+    ...overrides,
+  };
+}
+
+test("runGenerateConfigFlowRuntimeService starts flow when generateConfig is set and app should not start", async () => {
+  const calls: string[] = [];
+  const handled = runGenerateConfigFlowRuntimeService(
+    makeArgs({ generateConfig: true }),
+    {
+      shouldStartApp: () => false,
+      generateConfig: async () => 7,
+      onSuccess: (code) => calls.push(`success:${code}`),
+      onError: () => calls.push("error"),
+    },
+  );
+  assert.equal(handled, true);
+  await new Promise((resolve) => setImmediate(resolve));
+  assert.deepEqual(calls, ["success:7"]);
+});
+
+test("runGenerateConfigFlowRuntimeService returns false when flow should not run", () => {
+  const handled = runGenerateConfigFlowRuntimeService(
+    makeArgs({ generateConfig: true, start: true }),
+    {
+      shouldStartApp: () => true,
+      generateConfig: async () => 0,
+      onSuccess: () => {},
+      onError: () => {},
+    },
+  );
+  assert.equal(handled, false);
+});

src/core/services/config-generation-runtime-service.ts

@@ -0,0 +1,26 @@
+import { CliArgs } from "../../cli/args";
+
+export interface ConfigGenerationRuntimeDeps {
+  shouldStartApp: (args: CliArgs) => boolean;
+  generateConfig: (args: CliArgs) => Promise<number>;
+  onSuccess: (exitCode: number) => void;
+  onError: (error: Error) => void;
+}
+
+export function runGenerateConfigFlowRuntimeService(
+  args: CliArgs,
+  deps: ConfigGenerationRuntimeDeps,
+): boolean {
+  if (!args.generateConfig || deps.shouldStartApp(args)) {
+    return false;
+  }
+
+  deps.generateConfig(args)
+    .then((exitCode) => {
+      deps.onSuccess(exitCode);
+    })
+    .catch((error: Error) => {
+      deps.onError(error);
+    });
+  return true;
+}