fn.rs

fn flatten_l1(json: serde_json::Value, key_name: &'static str) -> Result<Flattened> {
    match json {
        serde_json::Value::Object(outer_map) => {
            let mut data = HashMap::new();
            let mut failed: u32 = 0;
            for (k, v) in outer_map.into_iter() {
                match (v, k.parse::<ReeInt>()) {
                    (serde_json::Value::Object(mut inner_map), Ok(id)) => {
                        insert_int(&mut inner_map, key_name, id);
                        data.insert(id, serde_json::Value::Object(inner_map));
                    }
                    (_, Err(e)) => {
                        log::debug!("error while flattening due to ID parsing: {}", e);
                        failed += 1;
                    }
                    (_, Ok(id)) => {
                        log::debug!("error while flattening due to non-map item with ID {}", id);
                        failed += 1;
                    }
                }
            }
            Ok(Flattened { data, failed })
        }
        _ => Err(Error::new(
            "FSD Lite decomposition failed: highest-level structure is not a map",
        )),
    }
}