Migration to new Rust-based engine (#401)

* wasm first steps * parsing start * parsing continued * progress * progress * progress * progress * progress * progress * progress * progress * fixes * reorganize * change type * fix * progress * refactoring * progress * progress * progress * keep style info * progress * progress * remove (copy) in name * progress * merge methods into 1 * splice * progress * progress * progress * cleaning * progress * progress * progress * visibility * progress * progress * progress * progress * progress * fixes * progress * fix markers * fix * progress * progress * progress * progress * progress * progress * small fix * use engine info * fix popups * small fix * progress * progress * progress * clean tool * handle self closing elements * reduce data exchanges across boundary * copy on wasm side to avoid any data corruption * speed fix * routing * refactoring * reverse * reverse * crop * split * merge * progress * time tool * fix bounds for waypoints * reduce * fix reactivity * handle corrupt time data * export * progress * remove gpx js package * remove todo * update readme * cleaning * progress * fix link fields * remove unused fields * refactoring and tests * import and export of routes, ref #192 * per-chunk categories storage * cross-tab sync * outdated state * refactoring * reorder methods * refactoring * fix * improve flow * renaming * progress * progress * fix * progress * per file history * keep original flag * use history variant * fix * progress * file explorer * progress * fix * sticky folders * improved sticky folders * fix sortable * fix sortable * fix * fix tab size * no file delete on desktop * fix routing on other file * fix sorting * remember language * open links in browser * commit missing changes * avoid selecting on resize * clarify filename * explorer actions * fix folder styling * drop anywhere in folder * cleaning * fixes * remove focus-ring * full screen * small fix * consistent highlight color * improved preview * performance improvements * sparser data transfers * sparser data transfers * show popup once data is loaded * fix routing control size * fix * sparse desktop build * remove custom ign styles * use new endpoint for openhikingmap * strip native menu * reorder context menu items * route full support * route - track conversion * create route file action * route export, filter out anchors at high zoom level * clarify name handling * move hide & center to view * routes continued * update docs * fix power format, closes #378 * lint fixes * fix display of additional data with gaps, closes #361 * fix linting issues * fix import modules * fix multidrag * change base to resolve * fix type errors * fix layer typings * fix last type error * each keys * improve typings * deploy to cloudflare --------- Co-authored-by: vcoppe <vcoppe@hexaly.com>
2026-11-01 12:17:18 +00:00 · 2026-10-31 18:08:22 +01:00
1 parent 6a0d434371
commit 8fe7d8d64d
@@ -0,0 +1,306 @@
+use std::rc::Rc;
+
+use crate::{
+    Apply, CommandError, File, FileId, RouteId, Selection, State, TrackId, TrackSegmentId,
+    end_time, reverse_routes, reverse_segment, reverse_segments, reverse_tracks, start_time,
+    track_end_time, track_start_time,
+};
+
+/// Reverses the direction of the selected elements: the whole of each selected file (its routes,
+/// its tracks, the segments of its tracks and their trackpoints are in the opposite order; the
+/// routes and the tracks are two wholes, as the routes stay before the tracks), of each selected
+/// track (its segments and their trackpoints), or each selected route or segment on its own (its
+/// trackpoints). The timestamps are mirrored, see [`reverse_segment`].
+#[derive(Debug)]
+pub struct Reverse;
+
+impl Apply for Reverse {
+    fn apply(self, state: &mut State) -> Result<(), CommandError> {
+        let locations = state
+            .selection
+            .segment_locations(state.files, &state.order.0);
+        let points: usize = locations
+            .iter()
+            .map(|location| location.segment(state.files).len())
+            .sum();
+        if points <= 1 {
+            return Err(CommandError::NothingToDo);
+        }
+
+        let mut files: Vec<(FileId, File)> = vec![];
+        let mut edit = |file_id: &FileId, f: &dyn Fn(&mut File)| {
+            if let Some(file) = state.files.get(file_id) {
+                let mut file = (**file).clone();
+                f(&mut file);
+                files.push((*file_id, file));
+            }
+        };
+        match &*state.selection {
+            Selection::File { file_ids } => {
+                for file_id in file_ids {
+                    edit(file_id, &|file| {
+                        let end = file.rte.last().and_then(|rte| end_time(&rte.seg));
+                        let start = file.rte.first().and_then(|rte| start_time(&rte.seg));
+                        reverse_routes(&mut file.rte, end, start);
+                        let end = file.trk.last().and_then(track_end_time);
+                        let start = file.trk.first().and_then(track_start_time);
+                        reverse_tracks(&mut file.trk, end, start);
+                    });
+                }
+            }
+            Selection::Route { file_id, rte_ids } => edit(file_id, &|file| {
+                reverse_selected_routes(file, rte_ids);
+            }),
+            Selection::Track { file_id, trk_ids } => edit(file_id, &|file| {
+                reverse_selected_tracks(file, trk_ids);
+            }),
+            Selection::TrackSegment {
+                file_id,
+                trk_id,
+                trkseg_ids,
+            } => edit(file_id, &|file| {
+                reverse_selected_segments(file, *trk_id, trkseg_ids);
+            }),
+            Selection::Empty | Selection::Waypoints { .. } | Selection::Waypoint { .. } => {}
+        }
+
+        for (file_id, file) in files {
+            state.files.insert(file_id, Rc::new(file));
+        }
+        Ok(())
+    }
+}
+
+fn reverse_selected_routes(file: &mut File, ids: &std::collections::HashSet<RouteId>) {
+    for route in file.rte.iter_mut().filter(|route| ids.contains(&route.id)) {
+        let (end, start) = (end_time(&route.seg), start_time(&route.seg));
+        reverse_segment(&mut route.seg, end, start);
+    }
+}
+
+fn reverse_selected_tracks(file: &mut File, ids: &std::collections::HashSet<TrackId>) {
+    for track in file.trk.iter_mut().filter(|track| ids.contains(&track.id)) {
+        let end = track.trkseg.last().and_then(end_time);
+        let start = track.trkseg.first().and_then(start_time);
+        reverse_segments(&mut track.trkseg, end, start);
+    }
+}
+
+fn reverse_selected_segments(
+    file: &mut File,
+    track_id: TrackId,
+    ids: &std::collections::HashSet<TrackSegmentId>,
+) {
+    for track in file.trk.iter_mut().filter(|track| track.id == track_id) {
+        for segment in track
+            .trkseg
+            .iter_mut()
+            .filter(|segment| ids.contains(&segment.id))
+        {
+            let (end, start) = (end_time(segment), start_time(segment));
+            reverse_segment(segment, end, start);
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use std::collections::HashSet;
+
+    use crate::{Load, TrackSegment, engine::command::fixture::Fixture};
+
+    use super::*;
+
+    fn loaded(path: &str) -> (Fixture, FileId) {
+        let mut fx = Fixture::default();
+        let data = std::fs::read(path).unwrap();
+        Load {
+            data: &data,
+            name: "file",
+        }
+        .apply(&mut fx.state())
+        .unwrap();
+        let id = fx.order.0[0];
+        fx.selection = Selection::File {
+            file_ids: HashSet::from([id]),
+        };
+        (fx, id)
+    }
+
+    fn all_segments(fx: &Fixture, id: FileId) -> Vec<TrackSegment> {
+        fx.files[&id]
+            .trk
+            .iter()
+            .flat_map(|track| track.trkseg.iter().cloned())
+            .collect()
+    }
+
+    fn lngs(segment: &TrackSegment) -> Vec<f64> {
+        segment.iter().map(|p| p.coordinates.lng).collect()
+    }
+
+    #[test]
+    fn test_reversing_a_file_reverses_tracks_segments_and_points() {
+        let (mut fx, id) = loaded("data/with_tracks_and_segments.gpx");
+        let before = all_segments(&fx, id);
+        assert!(before.len() >= 3);
+        let (tracks_before, ids_before): (Vec<usize>, Vec<_>) = (
+            fx.files[&id].trk.iter().map(|t| t.trkseg.len()).collect(),
+            fx.files[&id].trk.iter().map(|t| t.id).collect(),
+        );
+
+        Reverse.apply(&mut fx.state()).unwrap();
+
+        let after = all_segments(&fx, id);
+        assert_eq!(after.len(), before.len());
+        // the whole path is the opposite one
+        let path =
+            |segments: &[TrackSegment]| -> Vec<f64> { segments.iter().flat_map(lngs).collect() };
+        let mut expected = path(&before);
+        expected.reverse();
+        assert_eq!(path(&after), expected);
+        // the tracks are in the opposite order, each with the same number of segments
+        let tracks_after: Vec<usize> = fx.files[&id].trk.iter().map(|t| t.trkseg.len()).collect();
+        let mut reversed = tracks_before.clone();
+        reversed.reverse();
+        assert_eq!(tracks_after, reversed);
+        let ids_after: Vec<_> = fx.files[&id].trk.iter().map(|t| t.id).collect();
+        let mut reversed_ids = ids_before;
+        reversed_ids.reverse();
+        assert_eq!(ids_after, reversed_ids);
+        // the segments changed, and they still end where they should
+        assert!(after.iter().all(|s| s.rev_id != before[0].rev_id));
+        for segment in &after {
+            assert_eq!(segment[0].anchor, Some(0));
+            assert_eq!(segment[segment.len() - 1].anchor, Some(0));
+        }
+    }
+
+    #[test]
+    fn test_reversing_a_file_twice_gives_the_same_path_and_times() {
+        let (mut fx, id) = loaded("data/with_tracks_and_segments.gpx");
+        let before = all_segments(&fx, id);
+        let times = |segments: &[TrackSegment]| -> Vec<Option<i64>> {
+            segments
+                .iter()
+                .flat_map(|s| s.iter().map(|p| p.time))
+                .collect()
+        };
+        Reverse.apply(&mut fx.state()).unwrap();
+        Reverse.apply(&mut fx.state()).unwrap();
+        let after = all_segments(&fx, id);
+        for (a, b) in before.iter().zip(&after) {
+            assert_eq!(lngs(a), lngs(b));
+            assert_eq!(a.id, b.id);
+        }
+        assert_eq!(times(&before), times(&after));
+    }
+
+    #[test]
+    fn test_reversing_segments_keeps_the_others() {
+        let (mut fx, id) = loaded("data/with_tracks_and_segments.gpx");
+        let file = fx.files[&id].clone();
+        let trk = &file.trk[0];
+        assert!(trk.trkseg.len() >= 2);
+        let target = &trk.trkseg[1];
+        fx.selection = Selection::TrackSegment {
+            file_id: id,
+            trk_id: trk.id,
+            trkseg_ids: HashSet::from([target.id]),
+        };
+        Reverse.apply(&mut fx.state()).unwrap();
+
+        let after = &fx.files[&id].trk[0];
+        // the segment is reversed in place
+        let mut expected = lngs(target);
+        expected.reverse();
+        assert_eq!(lngs(&after.trkseg[1]), expected);
+        assert_eq!(after.trkseg[1].id, target.id);
+        assert_ne!(after.trkseg[1].rev_id, target.rev_id);
+        // the other ones are the same
+        for (i, segment) in trk.trkseg.iter().enumerate().filter(|(i, _)| *i != 1) {
+            assert_eq!(after.trkseg[i].rev_id, segment.rev_id, "{i}");
+        }
+        assert_eq!(fx.files[&id].trk.len(), file.trk.len());
+    }
+
+    #[test]
+    fn test_reversing_tracks_reverses_their_segments_in_place() {
+        let (mut fx, id) = loaded("data/with_tracks_and_segments.gpx");
+        let file = fx.files[&id].clone();
+        let (index, trk) = file
+            .trk
+            .iter()
+            .enumerate()
+            .find(|(_, t)| t.trkseg.len() >= 2)
+            .unwrap();
+        fx.selection = Selection::Track {
+            file_id: id,
+            trk_ids: HashSet::from([trk.id]),
+        };
+        Reverse.apply(&mut fx.state()).unwrap();
+
+        let after = &fx.files[&id];
+        // the track stays where it is, its segments are the opposite way
+        assert_eq!(after.trk[index].id, trk.id);
+        let path = |t: &crate::Track| -> Vec<f64> { t.trkseg.iter().flat_map(lngs).collect() };
+        let mut expected = path(trk);
+        expected.reverse();
+        assert_eq!(path(&after.trk[index]), expected);
+        // and the other tracks do not change
+        for (i, other) in file.trk.iter().enumerate().filter(|(i, _)| *i != index) {
+            assert_eq!(path(&after.trk[i]), path(other));
+        }
+    }
+
+    #[test]
+    fn test_times_are_mirrored() {
+        let (mut fx, id) = loaded("data/with_time.gpx");
+        let before = all_segments(&fx, id).remove(0);
+        Reverse.apply(&mut fx.state()).unwrap();
+        let after = all_segments(&fx, id).remove(0);
+        let (start, end) = (start_time(&before).unwrap(), end_time(&before).unwrap());
+        // the same period of time, the first point of the new path is the last one
+        assert_eq!(start_time(&after), Some(start));
+        assert_eq!(end_time(&after), Some(end));
+        let n = before.len();
+        for i in 0..n {
+            assert_eq!(
+                after[i].time.unwrap(),
+                start + end - before[n - 1 - i].time.unwrap()
+            );
+            assert_eq!(after[i].coordinates.lng, before[n - 1 - i].coordinates.lng);
+        }
+    }
+
+    #[test]
+    fn test_nothing_to_reverse() {
+        let (mut fx, id) = loaded("data/simple.gpx");
+        let before = fx.files[&id].clone();
+        fx.selection = Selection::Empty;
+        assert_eq!(
+            Reverse.apply(&mut fx.state()),
+            Err(CommandError::NothingToDo)
+        );
+        fx.selection = Selection::Waypoints { file_id: id };
+        assert_eq!(
+            Reverse.apply(&mut fx.state()),
+            Err(CommandError::NothingToDo)
+        );
+        assert!(Rc::ptr_eq(&fx.files[&id], &before));
+
+        // a single trackpoint has no direction
+        let mut file = (*fx.files[&id]).clone();
+        let segment = &mut file.trk[0].trkseg[0];
+        let len = segment.len();
+        segment.splice(1, len, vec![]);
+        fx.files.insert(id, Rc::new(file));
+        fx.selection = Selection::File {
+            file_ids: HashSet::from([id]),
+        };
+        assert_eq!(
+            Reverse.apply(&mut fx.state()),
+            Err(CommandError::NothingToDo)
+        );
+    }
+}