efb 0.7.1

Electronic Flight Bag library to plan and conduct a flight.
Documentation 
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// SPDX-License-Identifier: Apache-2.0
// Copyright 2026 Joe Pearson
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

use log::{debug, info, trace, warn};

use arinc424;

use crate::error::Error;
use crate::nd::*;

mod airspace;
mod fields;
mod records;

use airspace::AirspaceBuilder;

impl NavigationData {
    /// Creates navigation data from an ARINC 424 string.
    pub fn try_from_arinc424(data: &[u8]) -> Result<Self, Error> {
        info!(
            "loading navigation data from ARINC 424 ({} bytes)",
            data.len()
        );

        let mut builder = NavigationData::builder();
        let mut airspace: Option<AirspaceBuilder> = None;
        let mut counts = (0u32, 0u32, 0u32, 0u32);

        for (kind, bytes) in arinc424::records::Records::new(data) {
            if let Err(e) = || -> Result<(), arinc424::Error> {
                match kind {
                    arinc424::records::RecordKind::Waypoint => {
                        let record = arinc424::records::Waypoint::try_from(bytes)?;
                        let wp = Waypoint::try_from(record)?;
                        trace!("loaded waypoint {}", wp.fix_ident);
                        builder.add_waypoint(wp);
                        counts.0 += 1;
                    }

                    arinc424::records::RecordKind::Airport => {
                        let record = arinc424::records::Airport::try_from(bytes)?;
                        let arpt = Airport::try_from(record)?;
                        trace!("loaded airport {}", arpt.icao_ident);
                        builder.add_airport(arpt);
                        counts.1 += 1;
                    }

                    arinc424::records::RecordKind::Runway => {
                        let record = arinc424::records::Runway::try_from(bytes)?;
                        let ident = record.arpt_ident.to_string();
                        let rwy = Runway::try_from(record)?;
                        trace!("loaded runway {} at {}", rwy.designator, ident);
                        builder.add_runway(ident, rwy);
                        counts.2 += 1;
                    }

                    arinc424::records::RecordKind::ControlledAirspace => {
                        let record = arinc424::records::ControlledAirspace::try_from(bytes)?;
                        let return_to_origin = record.bdry_via.return_to_origin;
                        airspace
                            .get_or_insert_default()
                            .add_controlled_record(record)?;

                        if return_to_origin {
                            let arsp = airspace
                                .take()
                                .expect("there should be an airspace at this point")
                                .build()?;

                            trace!("loaded airspace {}", arsp.name);
                            builder.add_airspace(arsp);
                            counts.3 += 1;
                        }
                    }

                    arinc424::records::RecordKind::RestrictiveAirspace => {
                        let record = arinc424::records::RestrictiveAirspace::try_from(bytes)?;
                        let return_to_origin = record.bdry_via.return_to_origin;
                        airspace
                            .get_or_insert_default()
                            .add_restrictive_record(record)?;

                        if return_to_origin {
                            let arsp = airspace
                                .take()
                                .expect("there should be an airspace at this point")
                                .build()?;

                            trace!("loaded airspace {}", arsp.name);
                            builder.add_airspace(arsp);
                            counts.3 += 1;
                        }
                    }
                }

                Ok(())
            }() {
                warn!("skip record: {}", e);
                builder.add_error(Error::InvalidA424 {
                    record: bytes.to_vec(),
                    error: e.to_string(),
                });
            }
        }

        let nd = builder
            .with_source(data)
            .with_format(SourceFormat::A424)
            .build();

        info!(
            "ARINC 424 loading complete: {} waypoints, {} airports, {} runways, {} airspaces",
            counts.0, counts.1, counts.2, counts.3
        );

        if !nd.errors().is_empty() {
            warn!("ARINC 424 loading produced {} error(s)", nd.errors().len());
        }

        if let Some(cycle) = nd.cycle() {
            debug!("AIRAC cycle: {:?}", cycle);
        }

        Ok(nd)
    }
}