// ============================================================================
// 068 — Subscription Lifecycle
// ============================================================================
// Models a SaaS subscription: trial -> active -> cancelled etc.
//
// Run:   soma run 068_subscription.cell demo
// Expect:
//   Subscription created (trial)
//   Activated!
//   Status: active
//   Paused
//   Resumed
//   Cancelled

cell Subscription {

    memory {
        subs: Map<String, String> [persistent, consistent]
        status: Map<String, String> [persistent, consistent]
    }

    state sub_status {
        initial: trial

        trial -> active
        trial -> cancelled
        active -> paused
        active -> cancelled
        paused -> active
        paused -> cancelled
        cancelled -> trial
    }

    on create(plan: String) {
        let id = to_string(next_id())
        subs.set(id, plan)
        status.set(id, "trial")
        return map("id", id, "plan", plan, "status", "trial")
    }

    on demo() {
        create("Pro")
        print("Subscription created (trial)")

        transition("1", "active")
        print("Activated!")

        let st = get_status("1")
        print("Status: {st}")

        transition("1", "paused")
        print("Paused")

        transition("1", "active")
        print("Resumed")

        transition("1", "cancelled")
        print("Cancelled")

        return "done"
    }
}