FEAT: Discovery Video Service Subscription

tests/client_test.go

@@ -23,6 +23,19 @@ func baseURL() string {
 	return defaultBaseURL
 }
 
+// defaultDiscoveryBaseURL is where docker-compose publishes discovery on the
+// host.
+const defaultDiscoveryBaseURL = "http://localhost:8080"
+
+// discoveryBaseURL is the Discovery service the scenarios read the catalogue
+// from. Override it the same way as CMS_BASE_URL.
+func discoveryBaseURL() string {
+	if v := strings.TrimSpace(os.Getenv("DISCOVERY_BASE_URL")); v != "" {
+		return strings.TrimRight(v, "/")
+	}
+	return defaultDiscoveryBaseURL
+}
+
 // response is one HTTP exchange, kept whole so a failing assertion can print
 // the body it actually got rather than just a status code.
 type response struct {
@@ -107,6 +120,25 @@ func newClient() *client {
 	}
 }
 
+// newDiscoveryClient is newClient pointed at the read side. Same plumbing —
+// only the host differs, since both services speak the same JSON dialect.
+func newDiscoveryClient() *client {
+	return &client{
+		base: discoveryBaseURL(),
+		http: &http.Client{Timeout: 30 * time.Second},
+	}
+}
+
+// catalogueVideoBody is GET /api/videos/{id} on discovery: the catalogue's own
+// copy of a video, which is a different published shape from the CMS record of
+// the same name.
+type catalogueVideoBody struct {
+	ID          string   `json:"id"`
+	Title       string   `json:"title"`
+	PlaybackURL string   `json:"playbackUrl"`
+	Categories  []string `json:"categories"`
+}
+
 // postJSON marshals payload and posts it to a path on the CMS.
 func (c *client) postJSON(path string, payload any) (response, error) {
 	encoded, err := json.Marshal(payload)