refactor: centralize whatsapp auth detection

src/web/accounts.whatsapp-auth.test.ts

@@ -0,0 +1,63 @@
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+import { afterEach, beforeEach, describe, expect, it } from "vitest";
+
+import { hasAnyWhatsAppAuth, listWhatsAppAuthDirs } from "./accounts.js";
+
+describe("hasAnyWhatsAppAuth", () => {
+  let previousOauthDir: string | undefined;
+  let tempOauthDir: string | undefined;
+
+  const writeCreds = (dir: string) => {
+    fs.mkdirSync(dir, { recursive: true });
+    fs.writeFileSync(path.join(dir, "creds.json"), JSON.stringify({ me: {} }));
+  };
+
+  beforeEach(() => {
+    previousOauthDir = process.env.CLAWDBOT_OAUTH_DIR;
+    tempOauthDir = fs.mkdtempSync(path.join(os.tmpdir(), "clawdbot-oauth-"));
+    process.env.CLAWDBOT_OAUTH_DIR = tempOauthDir;
+  });
+
+  afterEach(() => {
+    if (previousOauthDir === undefined) {
+      delete process.env.CLAWDBOT_OAUTH_DIR;
+    } else {
+      process.env.CLAWDBOT_OAUTH_DIR = previousOauthDir;
+    }
+    if (tempOauthDir) {
+      fs.rmSync(tempOauthDir, { recursive: true, force: true });
+      tempOauthDir = undefined;
+    }
+  });
+
+  it("returns false when no auth exists", () => {
+    expect(hasAnyWhatsAppAuth({})).toBe(false);
+  });
+
+  it("returns true when legacy auth exists", () => {
+    fs.writeFileSync(path.join(tempOauthDir ?? "", "creds.json"), JSON.stringify({ me: {} }));
+    expect(hasAnyWhatsAppAuth({})).toBe(true);
+  });
+
+  it("returns true when non-default auth exists", () => {
+    writeCreds(path.join(tempOauthDir ?? "", "whatsapp", "work"));
+    expect(hasAnyWhatsAppAuth({})).toBe(true);
+  });
+
+  it("includes authDir overrides", () => {
+    const customDir = fs.mkdtempSync(path.join(os.tmpdir(), "clawdbot-wa-auth-"));
+    try {
+      writeCreds(customDir);
+      const cfg = {
+        channels: { whatsapp: { accounts: { work: { authDir: customDir } } } },
+      };
+
+      expect(listWhatsAppAuthDirs(cfg)).toContain(customDir);
+      expect(hasAnyWhatsAppAuth(cfg)).toBe(true);
+    } finally {
+      fs.rmSync(customDir, { recursive: true, force: true });
+    }
+  });
+});