refactor: centralize outbound target validation

src/infra/outbound/targets.test.ts

@@ -0,0 +1,39 @@
+import { describe, expect, it } from "vitest";
+
+import { resolveOutboundTarget } from "./targets.js";
+
+describe("resolveOutboundTarget", () => {
+  it("falls back to whatsapp allowFrom", () => {
+    const res = resolveOutboundTarget({
+      provider: "whatsapp",
+      to: "",
+      allowFrom: ["+1555"],
+    });
+    expect(res).toEqual({ ok: true, to: "+1555" });
+  });
+
+  it("normalizes whatsapp target when provided", () => {
+    const res = resolveOutboundTarget({
+      provider: "whatsapp",
+      to: " (555) 123-4567 ",
+    });
+    if (!res.ok) throw res.error;
+    expect(res.to).toBe("+5551234567");
+  });
+
+  it("rejects telegram with missing target", () => {
+    const res = resolveOutboundTarget({ provider: "telegram", to: " " });
+    expect(res.ok).toBe(false);
+    if (!res.ok) {
+      expect(res.error.message).toContain("Telegram");
+    }
+  });
+
+  it("rejects webchat delivery", () => {
+    const res = resolveOutboundTarget({ provider: "webchat", to: "x" });
+    expect(res.ok).toBe(false);
+    if (!res.ok) {
+      expect(res.error.message).toContain("WebChat");
+    }
+  });
+});