// ============================================================================
// 028 — JSON Serialization
// ============================================================================
// to_json() and from_json() for data serialization.
//
// Run:   soma run 028_json_roundtrip.cell run
// Expect:
//   json: {"name": "Alice", "scores": [95, 87, 92]}
//   parsed name: Alice
//   parsed scores: [95, 87, 92]
//   list json: [{"id": 1, "v": "a"}, {"id": 2, "v": "b"}]

cell JsonRoundtrip {

    on run() {
        // Serialize a map to JSON
        let data = map("name", "Alice", "scores", list(95, 87, 92))
        let json = to_json(data)
        print("json: {json}")

        // Parse JSON back to a map
        let parsed = from_json(json)
        print("parsed name: {parsed.name}")
        print("parsed scores: {parsed.scores}")

        // Serialize a list of maps
        let items = list(
            map("id", 1, "v", "a"),
            map("id", 2, "v", "b")
        )
        let items_json = to_json(items)
        print("list json: {items_json}")

        return "done"
    }
}