//! C-ITS DENM Evaluation

use c_its_parser::standards::denm_2_2_1::denm_pdu_description;
use log::info;

pub fn handle_denm(etsi: &denm_pdu_description::DENM) {
    let mgmt = &etsi.denm.management;

    if mgmt.termination.is_some() {
        return;
    }

    if let (Some(sit), Some(loc)) = (&etsi.denm.situation, &etsi.denm.location) {
        // let timestamp: chrono::DateTime<chrono::Utc> = mgmt.reference_time.clone().into();
        let end_time = chrono::DateTime::<chrono::Utc>::from(mgmt.reference_time.clone())
            + chrono::Duration::seconds(mgmt.validity_duration.0.into());
        let station_id = &mgmt.action_id.originating_station_id.0;
        let seq_num = mgmt.action_id.sequence_number.0;

        let lat_deg = mgmt.event_position.latitude.as_deg();
        let lon_deg = mgmt.event_position.longitude.as_deg();

        let heading = loc
            .event_position_heading
            .as_ref()
            .map(|v| v.value.as_deg());

        // let direction = mgmt.traffic_direction;

        let (cc, scc) = sit.event_type.cc_and_scc.to_u8_tuple();

        if let Some(hdg) = heading {
            info!(
                "DENN: {station_id}/{seq_num} CC {cc}/{scc} at {lat_deg:.3}°N, {lon_deg:.3}°E, hdg {hdg:.1}° until {end_time:?}"
            );
        } else {
            info!(
                "DENN: {station_id}/{seq_num} CC {cc}/{scc} at {lat_deg:.3}°N, {lon_deg:.3}°E until {end_time:?}"
            );
        }
    } else {
        info!("DENM: One of situation or location container not available");
    }
}