// ============================================================================
// 064 — Document Lifecycle
// ============================================================================
// Documents move through draft -> review -> published states.
//
// Run:   soma run 064_document_lifecycle.cell demo
// Expect:
//   Created: Design Spec v1
//   Draft -> review
//   Review -> published
//   Valid transitions from published: ["archived", "cancelled"]

cell DocumentLifecycle {

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

    state doc_status {
        initial: draft

        draft -> review
        review -> published
        review -> draft
        published -> archived
        * -> cancelled
    }

    on create(title: String) {
        let id = to_string(next_id())
        docs.set(id, title)
        status.set(id, "draft")
        return map("id", id, "title", title, "status", "draft")
    }

    on demo() {
        let doc = create("Design Spec v1")
        print("Created: {doc.title}")

        transition("1", "review")
        print("Draft -> review")

        transition("1", "published")
        print("Review -> published")

        let next = valid_transitions("1")
        print("Valid transitions from published: {next}")

        return "done"
    }
}