progress

tauri/src/bytes.rs

@@ -0,0 +1,40 @@
+//! Typed arrays and files cross as raw bytes (little-endian), not as JSON.
+
+pub type Bytes = tauri::ipc::Response;
+
+pub fn f64s(values: &[f64]) -> Bytes {
+    Bytes::new(
+        values
+            .iter()
+            .flat_map(|v| v.to_le_bytes())
+            .collect::<Vec<u8>>(),
+    )
+}
+
+pub fn u32s(values: &[u32]) -> Bytes {
+    Bytes::new(
+        values
+            .iter()
+            .flat_map(|v| v.to_le_bytes())
+            .collect::<Vec<u8>>(),
+    )
+}
+
+pub fn u8s(values: &[u8]) -> Bytes {
+    Bytes::new(values.to_vec())
+}
+
+/// An array that can be absent: the first byte tells whether it is there, the array follows.
+pub fn optional(array: Option<Vec<u8>>) -> Bytes {
+    let mut bytes = vec![u8::from(array.is_some())];
+    bytes.extend(array.unwrap_or_default());
+    Bytes::new(bytes)
+}
+
+pub fn f64_bytes(values: &[f64]) -> Vec<u8> {
+    values.iter().flat_map(|v| v.to_le_bytes()).collect()
+}
+
+pub fn i64_bytes(values: &[i64]) -> Vec<u8> {
+    values.iter().flat_map(|v| v.to_le_bytes()).collect()
+}

tauri/src/commands/edit.rs

@@ -1,22 +1,15 @@
 //! Editing the metadata, the style, the structure and the waypoints of the files, and the tools:
 //! reversing, cropping, reducing, timestamps, merging, cleaning...
 
-use gpx_engine::{self as engine, Command, LngLat, LngLatBounds};
+use gpx_engine::{api, CleanType, MergeType, SplitType};
 use tauri::State;
 use uuid::Uuid;
 
-use crate::dto::*;
-use crate::state::{act, edit, AppState};
+use crate::state::AppState;
 
 #[tauri::command(async)]
-pub fn metadata(state: State<AppState>, name: String, desc: String) -> Outcome {
-    edit!(
-        state,
-        Command::Metadata(engine::Metadata {
-            name: &name,
-            desc: &desc,
-        })
-    )
+pub fn metadata(state: State<AppState>, name: String, desc: String) -> api::Outcome {
+    state.run(move |e| api::metadata(e, &name, &desc))
 }
 
 #[tauri::command(async)]
@@ -25,25 +18,18 @@ pub fn style(
     color: Option<String>,
     opacity: Option<f64>,
     width: Option<f64>,
-) -> Outcome {
-    edit!(
-        state,
-        Command::Style(engine::Style {
-            color: color.as_deref(),
-            opacity,
-            width,
-        })
-    )
+) -> api::Outcome {
+    state.run(move |e| api::style(e, color.as_deref(), opacity, width))
 }
 
 #[tauri::command(async)]
-pub fn new_track(state: State<AppState>) -> Outcome {
-    edit!(state, Command::NewTrack(engine::NewTrack))
+pub fn new_track(state: State<AppState>) -> api::Outcome {
+    state.run(api::new_track)
 }
 
 #[tauri::command(async)]
-pub fn new_track_segment(state: State<AppState>) -> Outcome {
-    edit!(state, Command::NewTrackSegment(engine::NewTrackSegment))
+pub fn new_track_segment(state: State<AppState>) -> api::Outcome {
+    state.run(api::new_track_segment)
 }
 
 // Waypoints
@@ -59,19 +45,8 @@ pub fn new_waypoint(
     desc: String,
     icon: String,
     link: String,
-) -> Outcome {
-    edit!(
-        state,
-        Command::NewWaypoint(engine::NewWaypoint {
-            lng,
-            lat,
-            ele,
-            name: &name,
-            desc: &desc,
-            icon: &icon,
-            link: &link,
-        })
-    )
+) -> api::Outcome {
+    state.run(move |e| api::new_waypoint(e, lng, lat, ele, &name, &desc, &icon, &link))
 }
 
 #[tauri::command(async)]
@@ -82,28 +57,13 @@ pub fn move_waypoint(
     lng: f64,
     lat: f64,
     ele: f64,
-) -> Outcome {
-    edit!(
-        state,
-        Command::MoveWaypoint(engine::MoveWaypoint {
-            file_id: engine::FileId(file_id),
-            waypoint_id: engine::WaypointId(waypoint_id),
-            lng,
-            lat,
-            ele,
-        })
-    )
+) -> api::Outcome {
+    state.run(move |e| api::move_waypoint(e, file_id, waypoint_id, lng, lat, ele))
 }
 
 #[tauri::command(async)]
-pub fn delete_waypoint(state: State<AppState>, file_id: Uuid, waypoint_id: Uuid) -> Outcome {
-    edit!(
-        state,
-        Command::DeleteWaypoint(engine::DeleteWaypoint {
-            file_id: engine::FileId(file_id),
-            waypoint_id: engine::WaypointId(waypoint_id),
-        })
-    )
+pub fn delete_waypoint(state: State<AppState>, file_id: Uuid, waypoint_id: Uuid) -> api::Outcome {
+    state.run(move |e| api::delete_waypoint(e, file_id, waypoint_id))
 }
 
 #[tauri::command(async)]
@@ -119,46 +79,43 @@ pub fn update_waypoint(
     desc: String,
     icon: String,
     link: String,
-) -> Outcome {
-    edit!(
-        state,
-        Command::EditWaypoint(engine::EditWaypoint {
-            file_id: engine::FileId(file_id),
-            waypoint_id: engine::WaypointId(waypoint_id),
+) -> api::Outcome {
+    state.run(move |e| {
+        api::update_waypoint(
+            e,
+            file_id,
+            waypoint_id,
             lng,
             lat,
             ele,
-            name: &name,
-            desc: &desc,
-            icon: &icon,
-            link: &link,
-        })
-    )
+            &name,
+            &desc,
+            &icon,
+            &link,
+        )
+    })
 }
 
 // Tools
 
 #[tauri::command(async)]
-pub fn reverse(state: State<AppState>) -> Outcome {
-    edit!(state, Command::Reverse(engine::Reverse))
+pub fn reverse(state: State<AppState>) -> api::Outcome {
+    state.run(api::reverse)
 }
 
 #[tauri::command(async)]
-pub fn round_trip(state: State<AppState>) -> Outcome {
-    edit!(state, Command::RoundTrip(engine::RoundTrip))
+pub fn round_trip(state: State<AppState>) -> api::Outcome {
+    state.run(api::round_trip)
 }
 
 #[tauri::command(async)]
-pub fn crop(state: State<AppState>, start: u32, end: u32) -> Outcome {
-    if start > end {
-        return Outcome::failed(format!("the range {start}..{end} is reversed"));
-    }
-    edit!(state, Command::Crop(engine::Crop { start, end }))
+pub fn crop(state: State<AppState>, start: u32, end: u32) -> api::Outcome {
+    state.run(move |e| api::crop(e, start, end))
 }
 
 #[tauri::command(async)]
-pub fn reduce(state: State<AppState>, tolerance: f64) -> Outcome {
-    edit!(state, Command::Reduce(engine::Reduce { tolerance }))
+pub fn reduce(state: State<AppState>, tolerance: f64) -> api::Outcome {
+    state.run(move |e| api::reduce(e, tolerance))
 }
 
 #[tauri::command(async)]
@@ -167,14 +124,8 @@ pub fn change_timestamps(
     start_time: f64,
     speed: f64,
     ratio: f64,
-) -> Outcome {
-    edit!(
-        state,
-        Command::Time(engine::Time {
-            start_time: start_time as i64,
-            kind: engine::TimeKind::Change { speed, ratio },
-        })
-    )
+) -> api::Outcome {
+    state.run(move |e| api::change_timestamps(e, start_time, speed, ratio))
 }
 
 #[tauri::command(async)]
@@ -182,35 +133,23 @@ pub fn create_artificial_timestamps(
     state: State<AppState>,
     start_time: f64,
     total_time: f64,
-) -> Outcome {
-    edit!(
-        state,
-        Command::Time(engine::Time {
-            start_time: start_time as i64,
-            kind: engine::TimeKind::Artificial { total_time },
-        })
-    )
+) -> api::Outcome {
+    state.run(move |e| api::create_artificial_timestamps(e, start_time, total_time))
 }
 
 #[tauri::command(async)]
-pub fn merge(state: State<AppState>, merge_type: MergeType, remove_gaps: bool) -> Outcome {
-    edit!(
-        state,
-        Command::Merge(engine::Merge {
-            type_: merge_type.into(),
-            remove_gaps,
-        })
-    )
+pub fn merge(state: State<AppState>, merge_type: MergeType, remove_gaps: bool) -> api::Outcome {
+    state.run(move |e| api::merge(e, merge_type, remove_gaps))
 }
 
 #[tauri::command(async)]
-pub fn extract(state: State<AppState>) -> Outcome {
-    edit!(state, Command::Extract(engine::Extract))
+pub fn extract(state: State<AppState>) -> api::Outcome {
+    state.run(api::extract)
 }
 
 #[tauri::command(async)]
-pub fn elevation(state: State<AppState>, ele: Vec<f64>) -> Outcome {
-    edit!(state, Command::Elevation(engine::Elevation { ele: &ele }))
+pub fn elevation(state: State<AppState>, ele: Vec<f64>) -> api::Outcome {
+    state.run(move |e| api::elevation(e, &ele))
 }
 
 #[tauri::command(async)]
@@ -224,23 +163,56 @@ pub fn clean(
     clean_type: CleanType,
     trkpt: bool,
     wpt: bool,
-) -> Outcome {
-    edit!(
-        state,
-        Command::Clean(engine::Clean {
-            bounds: LngLatBounds {
-                sw: LngLat {
-                    lng: west,
-                    lat: south,
-                },
-                ne: LngLat {
-                    lng: east,
-                    lat: north,
-                },
-            },
-            type_: clean_type.into(),
-            trkpt,
-            wpt,
-        })
-    )
+) -> api::Outcome {
+    state.run(move |e| api::clean(e, west, south, east, north, clean_type, trkpt, wpt))
+}
+
+// Routing
+
+#[tauri::command(async)]
+#[allow(clippy::too_many_arguments)]
+pub fn route(
+    state: State<AppState>,
+    revision: u32,
+    start: u32,
+    end: u32,
+    lng: Vec<f64>,
+    lat: Vec<f64>,
+    ele: Vec<f64>,
+    attributes: api::RouteAttributes,
+    anchors: Vec<u32>,
+) -> api::Outcome {
+    state.run(move |e| {
+        api::route(
+            e,
+            revision,
+            start,
+            end,
+            &lng,
+            &lat,
+            &ele,
+            &attributes,
+            &anchors,
+        )
+    })
+}
+
+#[tauri::command(async)]
+pub fn insert_anchor(state: State<AppState>, revision: u32, lng: f64, lat: f64) -> api::Outcome {
+    state.run(move |e| api::insert_anchor(e, revision, lng, lat))
+}
+
+#[tauri::command(async)]
+pub fn change_loop_start(state: State<AppState>, revision: u32, index: u32) -> api::Outcome {
+    state.run(move |e| api::change_loop_start(e, revision, index))
+}
+
+#[tauri::command(async)]
+pub fn split(
+    state: State<AppState>,
+    revision: u32,
+    at: u32,
+    split_type: SplitType,
+) -> api::Outcome {
+    state.run(move |e| api::split(e, revision, at, split_type))
 }

tauri/src/commands/files.rs

@@ -1,12 +1,11 @@
 //! Creating, loading, deleting, moving, copying and pasting files and their elements, and undoing.
 
-use gpx_engine::{self as engine, Action, Command};
+use gpx_engine::api;
 use tauri::ipc::{InvokeBody, Request};
 use tauri::State;
 use uuid::Uuid;
 
-use crate::dto::*;
-use crate::state::{act, edit, AppState};
+use crate::state::AppState;
 
 #[tauri::command(async)]
 pub fn new_file(
@@ -15,73 +14,35 @@ pub fn new_file(
     lng: Option<f64>,
     lat: Option<f64>,
     ele: Option<f64>,
-) -> Outcome {
-    let trackpoint = lng.zip(lat).map(|(lng, lat)| engine::NewTrackpoint {
-        lng,
-        lat,
-        ele: ele.unwrap_or_default(),
-    });
-    edit!(
-        state,
-        Command::New(engine::New {
-            name: &name,
-            trackpoint,
-        })
-    )
+) -> api::Outcome {
+    state.run(move |e| api::new_file(e, &name, lng, lat, ele))
 }
 
-/// The files are in the body, one after the other, the headers `lengths` and `names` (JSON) telling
-/// the number of bytes and the name of each one.
+/// The files are in the body, one after the other, the headers `lengths` and `names` (JSON,
+/// percent-encoded) telling the number of bytes and the name of each one.
 #[tauri::command(async)]
-pub fn load_files(state: State<AppState>, request: Request<'_>) -> Outcome {
+pub fn load_files(state: State<AppState>, request: Request<'_>) -> api::Outcome {
     let InvokeBody::Raw(data) = request.body() else {
-        return Outcome::failed("the files are missing");
+        return api::Outcome::failed("the files are missing");
     };
     let header = |key: &str| {
         request
             .headers()
             .get(key)
             .and_then(|value| value.to_str().ok())
-            .and_then(urlencoding_decode)
+            .and_then(percent_decode)
     };
     let (Some(lengths), Some(names)) = (
         header("lengths").and_then(|json| serde_json::from_str::<Vec<usize>>(&json).ok()),
         header("names").and_then(|json| serde_json::from_str::<Vec<String>>(&json).ok()),
     ) else {
-        return Outcome::failed("the lengths or the names of the files are not valid");
+        return api::Outcome::failed("the lengths or the names of the files are not valid");
     };
-    if lengths.len() != names.len() {
-        return Outcome::failed(format!(
-            "{} lengths for {} names",
-            lengths.len(),
-            names.len()
-        ));
-    }
-    let (data, mut offset) = (data.clone(), 0);
-    let mut ranges = Vec::with_capacity(names.len());
-    for (length, name) in lengths.iter().zip(&names) {
-        let end = offset + length;
-        if end > data.len() {
-            return Outcome::failed(format!("the data of {name} is shorter than its length"));
-        }
-        ranges.push(offset..end);
-        offset = end;
-    }
-    edit!(state, {
-        let files = ranges
-            .into_iter()
-            .zip(&names)
-            .map(|(range, name)| engine::Load {
-                data: &data[range],
-                name,
-            })
-            .collect();
-        Command::LoadFiles(engine::LoadFiles { files })
-    })
+    let data = data.clone();
+    state.run(move |e| api::load_files(e, &data, &lengths, &names))
 }
 
-/// Headers are ASCII: the frontend percent-encodes the JSON.
-fn urlencoding_decode(value: &str) -> Option<String> {
+fn percent_decode(value: &str) -> Option<String> {
     let bytes = value.as_bytes();
     let mut decoded = Vec::with_capacity(bytes.len());
     let mut i = 0;
@@ -99,63 +60,55 @@ fn urlencoding_decode(value: &str) -> Option<String> {
 }
 
 #[tauri::command(async)]
-pub fn duplicate(state: State<AppState>) -> Outcome {
-    edit!(state, Command::Duplicate(engine::Duplicate))
+pub fn duplicate(state: State<AppState>) -> api::Outcome {
+    state.run(api::duplicate)
 }
 
 #[tauri::command(async)]
-pub fn delete(state: State<AppState>, whole_files: bool) -> Outcome {
-    edit!(state, Command::Delete(engine::Delete { whole_files }))
+pub fn delete(state: State<AppState>, whole_files: bool) -> api::Outcome {
+    state.run(move |e| api::delete(e, whole_files))
 }
 
 #[tauri::command(async)]
-pub fn delete_all(state: State<AppState>) -> Outcome {
-    edit!(state, Command::DeleteAll(engine::DeleteAll))
+pub fn delete_all(state: State<AppState>) -> api::Outcome {
+    state.run(api::delete_all)
 }
 
 #[tauri::command(async)]
-pub fn reorder(state: State<AppState>, file_ids: Vec<Uuid>, index: usize) -> Outcome {
-    act!(
-        state,
-        Action::Reorder {
-            file_ids: file_ids.into_iter().map(engine::FileId).collect(),
-            index,
-        }
-    )
+pub fn reorder(state: State<AppState>, file_ids: Vec<Uuid>, index: usize) -> api::Outcome {
+    state.run(move |e| api::reorder(e, &file_ids, index))
 }
 
 #[tauri::command(async)]
-pub fn copy(state: State<AppState>) -> Outcome {
-    act!(state, Action::Copy)
+pub fn copy(state: State<AppState>) -> api::Outcome {
+    state.run(api::copy)
 }
 
 #[tauri::command(async)]
-pub fn cut(state: State<AppState>) -> Outcome {
-    act!(state, Action::Cut)
+pub fn cut(state: State<AppState>) -> api::Outcome {
+    state.run(api::cut)
 }
 
 #[tauri::command(async)]
-pub fn paste(state: State<AppState>) -> Outcome {
-    edit!(state, Command::Paste(engine::Paste))
+pub fn paste(state: State<AppState>) -> api::Outcome {
+    state.run(api::paste)
 }
 
 #[tauri::command(async)]
-pub fn move_elements(state: State<AppState>, what: Selection, to: MoveTarget) -> Outcome {
-    edit!(
-        state,
-        Command::Move(engine::Move {
-            what: what.into(),
-            to: to.into(),
-        })
-    )
+pub fn move_elements(
+    state: State<AppState>,
+    what: api::Selection,
+    to: api::MoveTarget,
+) -> api::Outcome {
+    state.run(move |e| api::move_elements(e, what, to))
 }
 
 #[tauri::command(async)]
-pub fn undo(state: State<AppState>) -> Outcome {
-    act!(state, Action::Undo)
+pub fn undo(state: State<AppState>) -> api::Outcome {
+    state.run(api::undo)
 }
 
 #[tauri::command(async)]
-pub fn redo(state: State<AppState>) -> Outcome {
-    act!(state, Action::Redo)
+pub fn redo(state: State<AppState>) -> api::Outcome {
+    state.run(api::redo)
 }

tauri/src/commands/mod.rs

@@ -8,7 +8,6 @@
 pub mod edit;
 pub mod files;
 pub mod queries;
-pub mod routing;
 pub mod selection;
 pub mod statistics;
 pub mod storage;

tauri/src/commands/queries.rs

@@ -1,54 +1,51 @@
 //! The files, their structure and statistics, the selection, the clipboard, and the coordinates of
 //! the trackpoints and waypoints (flat `[lng, lat, ...]` little-endian `f64` arrays).
 
-use gpx_engine::{self as engine, FileId};
+use gpx_engine::{api, ExportOptions};
 use tauri::State;
 use uuid::Uuid;
 
-use crate::dto::*;
+use crate::bytes::*;
 use crate::state::AppState;
 
 #[tauri::command(async)]
 pub fn file_order(state: State<AppState>) -> Vec<String> {
-    state.read(|e| ids(e.order()))
+    state.read(api::file_order)
 }
 
 #[tauri::command(async)]
-pub fn file_structure(state: State<AppState>, file_id: Uuid) -> Option<FileStructure> {
-    state.read(move |e| e.file_structure(&FileId(file_id)).map(FileStructure::new))
+pub fn file_structure(state: State<AppState>, file_id: Uuid) -> Option<api::FileStructure> {
+    state.read(move |e| api::file_structure(e, file_id))
 }
 
 #[tauri::command(async)]
-pub fn file_statistics(state: State<AppState>, file_id: Uuid) -> Option<GlobalStatistics> {
-    state.read(move |e| {
-        e.file_statistics(&FileId(file_id))
-            .map(|s| GlobalStatistics::new(&s))
-    })
+pub fn file_statistics(state: State<AppState>, file_id: Uuid) -> Option<api::GlobalStatistics> {
+    state.read(move |e| api::file_statistics(e, file_id))
 }
 
 #[tauri::command(async)]
-pub fn selection(state: State<AppState>) -> Selection {
-    state.read(|e| e.selection().into())
+pub fn selection(state: State<AppState>) -> api::Selection {
+    state.read(api::selection)
 }
 
 #[tauri::command(async)]
-pub fn clipboard(state: State<AppState>) -> Option<Clipboard> {
-    state.read(|e| e.clipboard().map(Clipboard::new))
+pub fn clipboard(state: State<AppState>) -> Option<api::Clipboard> {
+    state.read(api::clipboard)
 }
 
 #[tauri::command(async)]
 pub fn can_undo(state: State<AppState>) -> bool {
-    state.read(|e| e.can_undo())
+    state.read(api::can_undo)
 }
 
 #[tauri::command(async)]
 pub fn can_redo(state: State<AppState>) -> bool {
-    state.read(|e| e.can_redo())
+    state.read(api::can_redo)
 }
 
 #[tauri::command(async)]
 pub fn can_paste(state: State<AppState>) -> bool {
-    state.read(|e| e.can_paste())
+    state.read(api::can_paste)
 }
 
 #[tauri::command(async)]
@@ -56,11 +53,8 @@ pub fn waypoint(
     state: State<AppState>,
     file_id: Uuid,
     waypoint_id: Uuid,
-) -> Option<WaypointDetails> {
-    state.read(move |e| {
-        e.waypoint(&FileId(file_id), &engine::WaypointId(waypoint_id))
-            .map(WaypointDetails::new)
-    })
+) -> Option<api::WaypointDetails> {
+    state.read(move |e| api::waypoint(e, file_id, waypoint_id))
 }
 
 #[tauri::command(async)]
@@ -69,11 +63,8 @@ pub fn trackpoint(
     file_id: Uuid,
     segment_id: Uuid,
     index: usize,
-) -> Option<TrackpointDetails> {
-    state.read(move |e| {
-        e.trackpoint(&FileId(file_id), &engine::TrackSegmentId(segment_id), index)
-            .map(TrackpointDetails::new)
-    })
+) -> Option<api::TrackpointDetails> {
+    state.read(move |e| api::trackpoint(e, file_id, segment_id, index))
 }
 
 /// A file as GPX (UTF-8 bytes), the first byte telling whether the file exists.
@@ -90,7 +81,7 @@ pub fn export_file(
     osm: bool,
     as_route: bool,
 ) -> Bytes {
-    let options = engine::ExportOptions {
+    let options = ExportOptions {
         time,
         hr,
         cad,
@@ -99,38 +90,25 @@ pub fn export_file(
         osm,
         as_route,
     };
-    optional(state.read(move |e| e.export(&FileId(file_id), options)))
+    optional(state.read(move |e| api::export_file(e, file_id, options)))
 }
 
-/// The data that some files have: a bit for the time (1), heart rate (2), cadence (4), temperature
-/// (8), power (16) and the OpenStreetMap data (32).
 #[tauri::command(async)]
 pub fn exportable_data(state: State<AppState>, file_ids: Vec<Uuid>) -> u8 {
-    state.read(move |e| {
-        let ids: Vec<FileId> = file_ids.into_iter().map(FileId).collect();
-        let data = e.exportable_data(&ids);
-        [
-            data.time, data.hr, data.cad, data.atemp, data.power, data.osm,
-        ]
-        .iter()
-        .enumerate()
-        .fold(0, |bits, (i, on)| bits | (u8::from(*on) << i))
-    })
+    state.read(move |e| api::exportable_data(e, &file_ids))
 }
 
 #[tauri::command(async)]
 pub fn reduction_distances(state: State<AppState>) -> Bytes {
-    Bytes::new(state.read(|e| f64s(&e.reduction_distances())))
+    f64s(&state.read(api::reduction_distances))
 }
 
 #[tauri::command(async)]
 pub fn segment_coordinates(state: State<AppState>, segment_id: Uuid) -> Bytes {
-    Bytes::new(
-        state.read(move |e| f64s(e.segment_coordinates(&engine::TrackSegmentId(segment_id)))),
-    )
+    f64s(&state.read(move |e| api::segment_coordinates(e, segment_id).to_vec()))
 }
 
 #[tauri::command(async)]
 pub fn waypoint_coordinates(state: State<AppState>, file_id: Uuid) -> Bytes {
-    Bytes::new(state.read(move |e| f64s(e.waypoint_coordinates(&FileId(file_id)))))
+    f64s(&state.read(move |e| api::waypoint_coordinates(e, file_id).to_vec()))
 }

tauri/src/commands/routing.rs

@@ -1,73 +0,0 @@
-//! The commands that refer to trackpoints by their index in the routing buffers, which only mean
-//! something for the `revision` they were read with: the commands do nothing if the selection is
-//! not the one of that revision anymore.
-
-use gpx_engine::{self as engine, Command};
-use tauri::State;
-
-use crate::dto::*;
-use crate::state::{edit_at, AppState};
-
-#[tauri::command(async)]
-#[allow(clippy::too_many_arguments)]
-pub fn route(
-    state: State<AppState>,
-    revision: u32,
-    start: u32,
-    end: u32,
-    lng: Vec<f64>,
-    lat: Vec<f64>,
-    ele: Vec<f64>,
-    attributes: RouteAttributes,
-    anchors: Vec<u32>,
-) -> Outcome {
-    if lng.len() != lat.len() || lat.len() != ele.len() {
-        return Outcome::failed("lng, lat and ele differ in length");
-    }
-    edit_at!(
-        state,
-        revision,
-        Command::Route(engine::Route {
-            start,
-            end,
-            lng: &lng,
-            lat: &lat,
-            ele: &ele,
-            surface: attributes.surface.view(),
-            highway: attributes.highway.view(),
-            sac_scale: attributes.sac_scale.view(),
-            mtb_scale: attributes.mtb_scale.view(),
-            anchors: &anchors,
-        })
-    )
-}
-
-#[tauri::command(async)]
-pub fn insert_anchor(state: State<AppState>, revision: u32, lng: f64, lat: f64) -> Outcome {
-    edit_at!(
-        state,
-        revision,
-        Command::InsertAnchor(engine::InsertAnchor { lng, lat })
-    )
-}
-
-#[tauri::command(async)]
-pub fn change_loop_start(state: State<AppState>, revision: u32, index: u32) -> Outcome {
-    edit_at!(
-        state,
-        revision,
-        Command::ChangeLoopStart(engine::ChangeLoopStart { index })
-    )
-}
-
-#[tauri::command(async)]
-pub fn split(state: State<AppState>, revision: u32, at: u32, split_type: SplitType) -> Outcome {
-    edit_at!(
-        state,
-        revision,
-        Command::Split(engine::Split {
-            at,
-            split_type: split_type.into(),
-        })
-    )
-}

tauri/src/commands/selection.rs

@@ -1,49 +1,24 @@
 //! Changing what is selected.
 
-use gpx_engine::{self as engine, Action};
+use gpx_engine::{api, SelectMode};
 use tauri::State;
 use uuid::Uuid;
 
-use crate::dto::*;
-use crate::state::{act, AppState};
+use crate::state::AppState;
 
-fn select_elements(
-    state: &AppState,
-    selection: Option<engine::Selection>,
-    mode: SelectMode,
-) -> Outcome {
-    match selection {
-        Some(selection) => act!(
-            state,
-            Action::Select {
-                selection,
-                mode: mode.into(),
-            }
-        ),
-        None => Outcome::failed("the ids are not UUIDs"),
-    }
-}
-
-fn to_file_ids(ids: Vec<Uuid>) -> Vec<engine::FileId> {
-    ids.into_iter().map(engine::FileId).collect()
+#[tauri::command(async)]
+pub fn select(state: State<AppState>, file_ids: Vec<Uuid>, mode: SelectMode) -> api::Outcome {
+    state.run(move |e| api::select(e, &file_ids, mode))
 }
 
 #[tauri::command(async)]
-pub fn select(state: State<AppState>, file_ids: Vec<Uuid>, mode: SelectMode) -> Outcome {
-    let selection = engine::Selection::File {
-        file_ids: to_file_ids(file_ids).into_iter().collect(),
-    };
-    select_elements(&state, Some(selection), mode)
+pub fn select_all(state: State<AppState>) -> api::Outcome {
+    state.run(api::select_all)
 }
 
 #[tauri::command(async)]
-pub fn select_all(state: State<AppState>) -> Outcome {
-    act!(state, Action::SelectAll)
-}
-
-#[tauri::command(async)]
-pub fn arrow_select(state: State<AppState>, down: bool, add: bool) -> Outcome {
-    act!(state, Action::ArrowSelect { down, add })
+pub fn arrow_select(state: State<AppState>, down: bool, add: bool) -> api::Outcome {
+    state.run(move |e| api::arrow_select(e, down, add))
 }
 
 #[tauri::command(async)]
@@ -52,12 +27,8 @@ pub fn select_tracks(
     file_id: Uuid,
     track_ids: Vec<Uuid>,
     mode: SelectMode,
-) -> Outcome {
-    let selection = engine::Selection::Track {
-        file_id: engine::FileId(file_id),
-        trk_ids: track_ids.into_iter().map(engine::TrackId).collect(),
-    };
-    select_elements(&state, Some(selection), mode)
+) -> api::Outcome {
+    state.run(move |e| api::select_tracks(e, file_id, &track_ids, mode))
 }
 
 #[tauri::command(async)]
@@ -67,24 +38,17 @@ pub fn select_segments(
     track_id: Uuid,
     segment_ids: Vec<Uuid>,
     mode: SelectMode,
-) -> Outcome {
-    let selection = engine::Selection::TrackSegment {
-        file_id: engine::FileId(file_id),
-        trk_id: engine::TrackId(track_id),
-        trkseg_ids: segment_ids
-            .into_iter()
-            .map(engine::TrackSegmentId)
-            .collect(),
-    };
-    select_elements(&state, Some(selection), mode)
+) -> api::Outcome {
+    state.run(move |e| api::select_segments(e, file_id, track_id, &segment_ids, mode))
 }
 
 #[tauri::command(async)]
-pub fn select_waypoint_group(state: State<AppState>, file_id: Uuid, mode: SelectMode) -> Outcome {
-    let selection = engine::Selection::Waypoints {
-        file_id: engine::FileId(file_id),
-    };
-    select_elements(&state, Some(selection), mode)
+pub fn select_waypoint_group(
+    state: State<AppState>,
+    file_id: Uuid,
+    mode: SelectMode,
+) -> api::Outcome {
+    state.run(move |e| api::select_waypoint_group(e, file_id, mode))
 }
 
 #[tauri::command(async)]
@@ -93,10 +57,6 @@ pub fn select_waypoints(
     file_id: Uuid,
     waypoint_ids: Vec<Uuid>,
     mode: SelectMode,
-) -> Outcome {
-    let selection = engine::Selection::Waypoint {
-        file_id: engine::FileId(file_id),
-        wpt_ids: waypoint_ids.into_iter().map(engine::WaypointId).collect(),
-    };
-    select_elements(&state, Some(selection), mode)
+) -> api::Outcome {
+    state.run(move |e| api::select_waypoints(e, file_id, &waypoint_ids, mode))
 }

tauri/src/commands/statistics.rs

@@ -2,16 +2,17 @@
 //! (one per call, copies of the buffers of the engine). Optional ones start with a byte telling
 //! whether they are there.
 
+use gpx_engine::api;
 use tauri::State;
 
-use crate::dto::*;
+use crate::bytes::*;
 use crate::state::AppState;
 
 macro_rules! f64_getters {
     ($($name:ident),*) => {$(
         #[tauri::command(async)]
         pub fn $name(state: State<AppState>) -> Bytes {
-            Bytes::new(state.read(|e| f64s(&e.statistics().$name)))
+            f64s(&state.read(|e| api::$name(e).to_vec()))
         }
     )*};
 }
@@ -30,7 +31,7 @@ macro_rules! optional_f64_getters {
     ($($name:ident),*) => {$(
         #[tauri::command(async)]
         pub fn $name(state: State<AppState>) -> Bytes {
-            optional(state.read(|e| e.statistics().$name.as_deref().map(f64s)))
+            optional(state.read(|e| api::$name(e).map(f64_bytes)))
         }
     )*};
 }
@@ -40,12 +41,12 @@ optional_f64_getters!(speed, hr, cad, atemp, power);
 /// Timestamps in milliseconds since the epoch (`NO_TIME` when missing), as `i64`.
 #[tauri::command(async)]
 pub fn timestamps(state: State<AppState>) -> Bytes {
-    optional(state.read(|e| e.statistics().time.as_deref().map(i64s)))
+    optional(state.read(|e| api::timestamps(e).map(i64_bytes)))
 }
 
 #[tauri::command(async)]
-pub fn selection_statistics(state: State<AppState>) -> GlobalStatistics {
-    state.read(|e| GlobalStatistics::new(&e.statistics().global))
+pub fn selection_statistics(state: State<AppState>) -> api::GlobalStatistics {
+    state.read(api::selection_statistics)
 }
 
 #[tauri::command(async)]
@@ -53,83 +54,55 @@ pub fn slice_statistics(
     state: State<AppState>,
     start: usize,
     end: usize,
-) -> Option<GlobalStatistics> {
-    state.read(move |e| {
-        e.statistics()
-            .slice(start, end)
-            .map(|s| GlobalStatistics::new(&s))
-    })
+) -> Option<api::GlobalStatistics> {
+    state.read(move |e| api::slice_statistics(e, start, end))
 }
 
-macro_rules! intervals_getters {
-    ($starts:ident, $values:ident, $field:ident) => {
+macro_rules! category_getters {
+    ($starts:ident, $values:ident, $names:ident) => {
         #[tauri::command(async)]
         pub fn $starts(state: State<AppState>) -> Bytes {
-            Bytes::new(state.read(|e| u32s(&e.statistics().$field.starts)))
+            u32s(&state.read(|e| api::$starts(e).to_vec()))
         }
 
         #[tauri::command(async)]
         pub fn $values(state: State<AppState>) -> Bytes {
-            Bytes::new(state.read(|e| e.statistics().$field.values.clone()))
+            u8s(&state.read(|e| api::$values(e).to_vec()))
+        }
+
+        #[tauri::command(async)]
+        pub fn $names(state: State<AppState>) -> Vec<String> {
+            state.read(|e| api::$names(e).to_vec())
         }
     };
 }
 
-intervals_getters!(surface_starts, surface_values, surface);
-intervals_getters!(highway_starts, highway_values, highway);
-intervals_getters!(sac_scale_starts, sac_scale_values, sac_scale);
-intervals_getters!(mtb_scale_starts, mtb_scale_values, mtb_scale);
-
-/// The names of the categories, in the order of their codes. The lists only grow.
-#[tauri::command(async)]
-pub fn surfaces(state: State<AppState>) -> Vec<String> {
-    state.read(|e| e.categories().surface.names().to_vec())
-}
-
-#[tauri::command(async)]
-pub fn highways(state: State<AppState>) -> Vec<String> {
-    state.read(|e| e.categories().highway.names().to_vec())
-}
-
-#[tauri::command(async)]
-pub fn sac_scales(state: State<AppState>) -> Vec<String> {
-    state.read(|e| e.categories().sac_scale.names().to_vec())
-}
-
-#[tauri::command(async)]
-pub fn mtb_scales(state: State<AppState>) -> Vec<String> {
-    state.read(|e| e.categories().mtb_scale.names().to_vec())
-}
-
-// Routing buffers
+category_getters!(surface_starts, surface_values, surfaces);
+category_getters!(highway_starts, highway_values, highways);
+category_getters!(sac_scale_starts, sac_scale_values, sac_scales);
+category_getters!(mtb_scale_starts, mtb_scale_values, mtb_scales);
 
 #[tauri::command(async)]
 pub fn anchor_indices(state: State<AppState>) -> Bytes {
-    Bytes::new(state.read(|e| u32s(&e.routing().anchor_indices)))
+    u32s(&state.read(|e| api::anchor_indices(e).to_vec()))
 }
 
 #[tauri::command(async)]
 pub fn anchor_zooms(state: State<AppState>) -> Bytes {
-    Bytes::new(state.read(|e| e.routing().anchor_zooms.clone()))
+    u8s(&state.read(|e| api::anchor_zooms(e).to_vec()))
 }
 
 #[tauri::command(async)]
 pub fn segment_starts(state: State<AppState>) -> Bytes {
-    Bytes::new(state.read(|e| u32s(&e.routing().segment_starts)))
+    u32s(&state.read(|e| api::segment_starts(e).to_vec()))
 }
 
 #[tauri::command(async)]
 pub fn segment_ids(state: State<AppState>) -> Vec<String> {
-    state.read(|e| {
-        e.routing()
-            .segment_ids
-            .iter()
-            .map(|id| id.0.to_string())
-            .collect()
-    })
+    state.read(api::segment_ids)
 }
 
 #[tauri::command(async)]
 pub fn routing_revision(state: State<AppState>) -> u32 {
-    state.read(|e| e.routing().revision)
+    state.read(api::routing_revision)
 }

tauri/src/commands/storage.rs

@@ -6,8 +6,8 @@
 use serde::Serialize;
 use tauri::State;
 
-use crate::dto::Outcome;
 use crate::state::AppState;
+use gpx_engine::api::Outcome;
 
 /// What opening the storage found.
 #[derive(Serialize)]

tauri/src/dto.rs

@@ -1,578 +0,0 @@
-//! What crosses to the frontend, as JSON: the same shapes as the objects of the WASM interface
-//! (`gpx-rs/wasm/src/ts.rs` holds their TypeScript types).
-
-use gpx_engine::{self as engine, FileId};
-use serde::{Deserialize, Serialize};
-use uuid::Uuid;
-
-/// Bytes that cross as they are: typed arrays (little-endian), GPX files.
-pub type Bytes = tauri::ipc::Response;
-
-pub fn f64s(values: &[f64]) -> Vec<u8> {
-    values.iter().flat_map(|v| v.to_le_bytes()).collect()
-}
-
-pub fn i64s(values: &[i64]) -> Vec<u8> {
-    values.iter().flat_map(|v| v.to_le_bytes()).collect()
-}
-
-pub fn u32s(values: &[u32]) -> Vec<u8> {
-    values.iter().flat_map(|v| v.to_le_bytes()).collect()
-}
-
-/// An array that can be absent: the first byte tells whether it is there, the array follows.
-pub fn optional(array: Option<Vec<u8>>) -> Bytes {
-    let mut bytes = vec![u8::from(array.is_some())];
-    bytes.extend(array.unwrap_or_default());
-    Bytes::new(bytes)
-}
-
-pub fn ids(items: &[FileId]) -> Vec<String> {
-    items.iter().map(|id| id.0.to_string()).collect()
-}
-
-// Outcome
-
-/// What a call that edits the files or changes the selection did.
-#[derive(Serialize)]
-#[serde(rename_all = "camelCase")]
-pub struct Outcome {
-    changed: bool,
-    order_changed: bool,
-    selection_changed: bool,
-    clipboard_changed: bool,
-    added: Vec<String>,
-    modified: Vec<String>,
-    removed: Vec<String>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    error: Option<String>,
-}
-
-impl Outcome {
-    pub fn new(outcome: &engine::Outcome, error: Option<String>) -> Self {
-        let diff = outcome.diff.clone().unwrap_or_default();
-        Self {
-            changed: outcome.changed,
-            order_changed: outcome.order_changed,
-            selection_changed: outcome.selection_changed,
-            clipboard_changed: outcome.clipboard_changed,
-            added: ids(&diff.added),
-            modified: ids(&diff.modified),
-            removed: ids(&diff.removed),
-            error,
-        }
-    }
-
-    /// The outcome of a call that did nothing and has nothing to say.
-    pub fn failed_none() -> Self {
-        Self::new(&engine::Outcome::default(), None)
-    }
-
-    /// What a call that does nothing returns.
-    pub fn failed(message: impl Into<String>) -> Self {
-        Self::new(&engine::Outcome::default(), Some(message.into()))
-    }
-}
-
-// Selection and clipboard
-
-#[derive(Serialize, Deserialize)]
-#[serde(
-    tag = "type",
-    rename_all = "camelCase",
-    rename_all_fields = "camelCase"
-)]
-pub enum Selection {
-    Empty,
-    File {
-        file_ids: Vec<Uuid>,
-    },
-    Track {
-        file_id: Uuid,
-        track_ids: Vec<Uuid>,
-    },
-    Segment {
-        file_id: Uuid,
-        track_id: Uuid,
-        segment_ids: Vec<Uuid>,
-    },
-    Waypoints {
-        file_id: Uuid,
-    },
-    Waypoint {
-        file_id: Uuid,
-        waypoint_ids: Vec<Uuid>,
-    },
-}
-
-impl From<&engine::Selection> for Selection {
-    fn from(selection: &engine::Selection) -> Self {
-        use engine::Selection as S;
-        match selection {
-            S::Empty => Self::Empty,
-            S::File { file_ids } => Self::File {
-                file_ids: file_ids.iter().map(|id| id.0).collect(),
-            },
-            S::Track { file_id, trk_ids } => Self::Track {
-                file_id: file_id.0,
-                track_ids: trk_ids.iter().map(|id| id.0).collect(),
-            },
-            S::TrackSegment {
-                file_id,
-                trk_id,
-                trkseg_ids,
-            } => Self::Segment {
-                file_id: file_id.0,
-                track_id: trk_id.0,
-                segment_ids: trkseg_ids.iter().map(|id| id.0).collect(),
-            },
-            S::Waypoints { file_id } => Self::Waypoints { file_id: file_id.0 },
-            S::Waypoint { file_id, wpt_ids } => Self::Waypoint {
-                file_id: file_id.0,
-                waypoint_ids: wpt_ids.iter().map(|id| id.0).collect(),
-            },
-        }
-    }
-}
-
-impl From<Selection> for engine::Selection {
-    fn from(selection: Selection) -> Self {
-        use engine::Selection as S;
-        match selection {
-            Selection::Empty => S::Empty,
-            Selection::File { file_ids } => S::File {
-                file_ids: file_ids.into_iter().map(FileId).collect(),
-            },
-            Selection::Track { file_id, track_ids } => S::Track {
-                file_id: FileId(file_id),
-                trk_ids: track_ids.into_iter().map(engine::TrackId).collect(),
-            },
-            Selection::Segment {
-                file_id,
-                track_id,
-                segment_ids,
-            } => S::TrackSegment {
-                file_id: FileId(file_id),
-                trk_id: engine::TrackId(track_id),
-                trkseg_ids: segment_ids
-                    .into_iter()
-                    .map(engine::TrackSegmentId)
-                    .collect(),
-            },
-            Selection::Waypoints { file_id } => S::Waypoints {
-                file_id: FileId(file_id),
-            },
-            Selection::Waypoint {
-                file_id,
-                waypoint_ids,
-            } => S::Waypoint {
-                file_id: FileId(file_id),
-                wpt_ids: waypoint_ids.into_iter().map(engine::WaypointId).collect(),
-            },
-        }
-    }
-}
-
-/// Where moved elements go. A negative index is the start, an infinite one the end (which JSON
-/// writes as `null`, so the frontend sends a very large number instead).
-#[derive(Deserialize)]
-#[serde(
-    tag = "type",
-    rename_all = "camelCase",
-    rename_all_fields = "camelCase"
-)]
-pub enum MoveTarget {
-    Files {
-        index: f64,
-    },
-    Tracks {
-        file_id: Uuid,
-        index: f64,
-    },
-    Segments {
-        file_id: Uuid,
-        track_id: Uuid,
-        index: f64,
-    },
-    Waypoints {
-        file_id: Uuid,
-        index: f64,
-    },
-}
-
-impl From<MoveTarget> for engine::MoveTarget {
-    fn from(target: MoveTarget) -> Self {
-        use engine::MoveTarget as T;
-        let index = |index: f64| index.max(0.0) as usize;
-        match target {
-            MoveTarget::Files { index: i } => T::Files { index: index(i) },
-            MoveTarget::Tracks { file_id, index: i } => T::Tracks {
-                file_id: FileId(file_id),
-                index: index(i),
-            },
-            MoveTarget::Segments {
-                file_id,
-                track_id,
-                index: i,
-            } => T::Segments {
-                file_id: FileId(file_id),
-                trk_id: engine::TrackId(track_id),
-                index: index(i),
-            },
-            MoveTarget::Waypoints { file_id, index: i } => T::Waypoints {
-                file_id: FileId(file_id),
-                index: index(i),
-            },
-        }
-    }
-}
-
-#[derive(Serialize)]
-pub struct Clipboard {
-    #[serde(rename = "type")]
-    kind: &'static str,
-    ids: Vec<String>,
-    cut: bool,
-}
-
-impl Clipboard {
-    pub fn new(clipboard: &engine::Clipboard) -> Self {
-        let strings = |ids: Vec<Uuid>| ids.iter().map(Uuid::to_string).collect();
-        let (kind, ids) = match clipboard.content.ids() {
-            engine::ClipboardIds::Files(ids) => {
-                ("files", strings(ids.into_iter().map(|id| id.0).collect()))
-            }
-            engine::ClipboardIds::Tracks(ids) => {
-                ("tracks", strings(ids.into_iter().map(|id| id.0).collect()))
-            }
-            engine::ClipboardIds::Segments(ids) => (
-                "segments",
-                strings(ids.into_iter().map(|id| id.0).collect()),
-            ),
-            engine::ClipboardIds::Waypoints(ids) => (
-                "waypoints",
-                strings(ids.into_iter().map(|id| id.0).collect()),
-            ),
-        };
-        Self {
-            kind,
-            ids,
-            cut: clipboard.cut,
-        }
-    }
-}
-
-// Files
-
-#[derive(Serialize)]
-#[serde(rename_all = "camelCase")]
-pub struct FileStructure {
-    id: String,
-    name: String,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    desc: Option<String>,
-    tracks: Vec<TrackNode>,
-    waypoints: Vec<WaypointNode>,
-    waypoints_rev: String,
-}
-
-#[derive(Serialize)]
-struct TrackNode {
-    id: String,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    name: Option<String>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    desc: Option<String>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    color: Option<String>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    opacity: Option<f64>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    width: Option<f64>,
-    segments: Vec<SegmentNode>,
-}
-
-#[derive(Serialize)]
-struct SegmentNode {
-    id: String,
-    rev: String,
-    length: f64,
-}
-
-#[derive(Serialize)]
-struct WaypointNode {
-    id: String,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    name: Option<String>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    sym: Option<String>,
-}
-
-impl FileStructure {
-    pub fn new(file: &engine::FileStructure) -> Self {
-        Self {
-            id: file.id.0.to_string(),
-            name: file.name.clone(),
-            desc: file.desc.clone(),
-            tracks: file
-                .tracks
-                .iter()
-                .map(|trk| TrackNode {
-                    id: trk.id.0.to_string(),
-                    name: trk.name.clone(),
-                    desc: trk.desc.clone(),
-                    color: trk.color.clone(),
-                    opacity: trk.opacity,
-                    width: trk.width,
-                    segments: trk
-                        .segments
-                        .iter()
-                        .map(|seg| SegmentNode {
-                            id: seg.id.0.to_string(),
-                            rev: seg.rev_id.0.to_string(),
-                            length: seg.len as f64,
-                        })
-                        .collect(),
-                })
-                .collect(),
-            waypoints: file
-                .waypoints
-                .iter()
-                .map(|wpt| WaypointNode {
-                    id: wpt.id.0.to_string(),
-                    name: wpt.name.clone(),
-                    sym: wpt.sym.clone(),
-                })
-                .collect(),
-            waypoints_rev: file.wpt_rev_id.0.to_string(),
-        }
-    }
-}
-
-#[derive(Serialize)]
-#[serde(rename_all = "camelCase")]
-pub struct GlobalStatistics {
-    total_distance: f64,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    moving_distance: Option<f64>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    total_time: Option<f64>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    moving_time: Option<f64>,
-    elevation_gain: f64,
-    elevation_loss: f64,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    start_time: Option<f64>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    end_time: Option<f64>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    total_speed: Option<f64>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    moving_speed: Option<f64>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    bounds: Option<Bounds>,
-}
-
-#[derive(Serialize)]
-struct Bounds {
-    west: f64,
-    south: f64,
-    east: f64,
-    north: f64,
-}
-
-impl GlobalStatistics {
-    pub fn new(stats: &engine::GlobalStatistics) -> Self {
-        let seconds = |ms: Option<i64>| ms.map(|ms| ms as f64 / 1000.0);
-        let (sw, ne) = (&stats.bounds.sw, &stats.bounds.ne);
-        Self {
-            total_distance: stats.total_distance,
-            moving_distance: stats.moving_distance,
-            total_time: seconds(stats.total_time),
-            moving_time: seconds(stats.moving_time),
-            elevation_gain: stats.elevation_gain,
-            elevation_loss: stats.elevation_loss,
-            start_time: stats.start_time.map(|t| t as f64),
-            end_time: stats.end_time.map(|t| t as f64),
-            total_speed: stats.total_speed(),
-            moving_speed: stats.moving_speed(),
-            bounds: (sw.lng <= ne.lng && sw.lat <= ne.lat).then_some(Bounds {
-                west: sw.lng,
-                south: sw.lat,
-                east: ne.lng,
-                north: ne.lat,
-            }),
-        }
-    }
-}
-
-#[derive(Serialize)]
-pub struct WaypointDetails {
-    id: String,
-    lng: f64,
-    lat: f64,
-    ele: f64,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    time: Option<f64>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    name: Option<String>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    desc: Option<String>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    cmt: Option<String>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    sym: Option<String>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    links: Option<Vec<Link>>,
-}
-
-#[derive(Serialize)]
-struct Link {
-    href: String,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    text: Option<String>,
-}
-
-impl WaypointDetails {
-    pub fn new(wpt: &engine::Waypoint) -> Self {
-        Self {
-            id: wpt.id.0.to_string(),
-            lng: wpt.coordinates.lng,
-            lat: wpt.coordinates.lat,
-            ele: wpt.ele,
-            time: wpt.time.map(|t| t as f64),
-            name: wpt.name.clone(),
-            desc: wpt.desc.clone(),
-            cmt: wpt.cmt.clone(),
-            sym: wpt.sym.clone(),
-            links: (!wpt.links.is_empty()).then(|| {
-                wpt.links
-                    .iter()
-                    .map(|link| Link {
-                        href: link.href.clone(),
-                        text: link.text.clone(),
-                    })
-                    .collect()
-            }),
-        }
-    }
-}
-
-#[derive(Serialize)]
-pub struct TrackpointDetails {
-    lng: f64,
-    lat: f64,
-    ele: f64,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    time: Option<f64>,
-}
-
-impl TrackpointDetails {
-    pub fn new(pt: &engine::Trackpoint) -> Self {
-        Self {
-            lng: pt.coordinates.lng,
-            lat: pt.coordinates.lat,
-            ele: pt.ele,
-            time: pt.time.map(|t| t as f64),
-        }
-    }
-}
-
-// Enumerations
-
-#[derive(Clone, Copy, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub enum SelectMode {
-    Replace,
-    Add,
-    Toggle,
-}
-
-impl From<SelectMode> for engine::SelectMode {
-    fn from(m: SelectMode) -> Self {
-        match m {
-            SelectMode::Replace => Self::Replace,
-            SelectMode::Add => Self::Add,
-            SelectMode::Toggle => Self::Toggle,
-        }
-    }
-}
-
-#[derive(Clone, Copy, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub enum MergeType {
-    Connect,
-    Group,
-}
-
-impl From<MergeType> for engine::MergeType {
-    fn from(t: MergeType) -> Self {
-        match t {
-            MergeType::Connect => Self::Connect,
-            MergeType::Group => Self::Group,
-        }
-    }
-}
-
-#[derive(Clone, Copy, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub enum SplitType {
-    Files,
-    Tracks,
-    Segments,
-}
-
-impl From<SplitType> for engine::SplitType {
-    fn from(t: SplitType) -> Self {
-        match t {
-            SplitType::Files => Self::Files,
-            SplitType::Tracks => Self::Tracks,
-            SplitType::Segments => Self::Segments,
-        }
-    }
-}
-
-#[derive(Clone, Copy, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub enum CleanType {
-    Inside,
-    Outside,
-}
-
-impl From<CleanType> for engine::CleanType {
-    fn from(t: CleanType) -> Self {
-        match t {
-            CleanType::Inside => Self::Inside,
-            CleanType::Outside => Self::Outside,
-        }
-    }
-}
-
-// Routing
-
-/// A category of the trackpoints of a route, as in `RouteCategory` of the engine.
-#[derive(Default, Deserialize)]
-pub struct RouteCategory {
-    pub starts: Vec<u32>,
-    pub values: Vec<u8>,
-    pub names: Vec<String>,
-}
-
-impl RouteCategory {
-    pub fn view(&self) -> engine::RouteCategory<'_> {
-        engine::RouteCategory {
-            starts: &self.starts,
-            values: &self.values,
-            names: &self.names,
-        }
-    }
-}
-
-#[derive(Default, Deserialize)]
-#[serde(rename_all = "camelCase", default)]
-pub struct RouteAttributes {
-    pub surface: RouteCategory,
-    pub highway: RouteCategory,
-    pub sac_scale: RouteCategory,
-    pub mtb_scale: RouteCategory,
-}

tauri/src/lib.rs

@@ -1,8 +1,8 @@
 //! The desktop shell of gpx.studio. The engine of the files (`gpx-rs/engine`) runs in this
 //! process, and the frontend talks to it through the commands of `commands`.
 
+mod bytes;
 mod commands;
-mod dto;
 mod state;
 
 use commands::*;
@@ -59,10 +59,10 @@ fn with_engine<R: tauri::Runtime>(builder: tauri::Builder<R>) -> tauri::Builder<
             edit::extract,
             edit::elevation,
             edit::clean,
-            routing::route,
-            routing::insert_anchor,
-            routing::change_loop_start,
-            routing::split,
+            edit::route,
+            edit::insert_anchor,
+            edit::change_loop_start,
+            edit::split,
             // queries
             queries::file_order,
             queries::file_structure,

tauri/src/state.rs

@@ -8,14 +8,10 @@ use std::sync::mpsc::{self, Sender};
 use std::sync::{Mutex, MutexGuard};
 use std::thread;
 
-use gpx_engine::{Action, Engine};
-
-use crate::dto::Outcome;
+use gpx_engine::Engine;
 
 type Job = Box<dyn FnOnce(&mut Engine) + Send>;
 
-/// What the commands talk to. The engine is the same as in the browser (`gpx-rs`); here it lives in
-/// the process of the app, and the frontend reaches it through the commands only.
 pub struct AppState {
     jobs: Mutex<Sender<Job>>,
     /// The settings of the frontend, as JSON strings by key.
@@ -65,43 +61,3 @@ impl AppState {
         self.settings.lock().unwrap()
     }
 }
-
-/// Executes an action and tells what it did, see `Outcome`.
-pub fn execute(engine: &mut Engine, action: Action) -> Outcome {
-    match engine.execute(action) {
-        Ok(outcome) => Outcome::new(&outcome, None),
-        Err(error) => Outcome::failed(error.to_string()),
-    }
-}
-
-/// Executes an action on the engine. The values the action uses are moved to the engine thread.
-macro_rules! act {
-    ($state:expr, $action:expr) => {
-        $state.run(move |engine| $crate::state::execute(engine, $action))
-    };
-}
-
-/// Executes a command (the command can borrow what it uses).
-macro_rules! edit {
-    ($state:expr, $command:expr) => {
-        act!($state, ::gpx_engine::Action::Edit($command))
-    };
-}
-
-/// Like `edit!`, but does nothing if the selection is not the one of `revision` anymore (the
-/// indices of the routing buffers only mean something for their revision).
-macro_rules! edit_at {
-    ($state:expr, $revision:expr, $command:expr) => {{
-        let revision = $revision;
-        $state.run(move |engine| {
-            if engine.routing().revision != revision {
-                return $crate::dto::Outcome::failed(
-                    "the selection changed since the routing buffers were read",
-                );
-            }
-            $crate::state::execute(engine, ::gpx_engine::Action::Edit($command))
-        })
-    }};
-}
-
-pub(crate) use {act, edit, edit_at};

tauri/src/tests.rs

@@ -60,7 +60,7 @@ impl App {
         let mut data = vec![];
         let mut lengths = vec![];
         for name in names {
-            let file = std::fs::read(format!("../gpx-rs/engine/data/{name}.gpx")).unwrap();
+            let file = std::fs::read(format!("../gpx-rs/data/{name}.gpx")).unwrap();
             lengths.push(file.len());
             data.extend(file);
         }
@@ -77,8 +77,10 @@ impl App {
 
 fn f64s(bytes: &[u8]) -> Vec<f64> {
     bytes
-        .chunks_exact(8)
-        .map(|chunk| f64::from_le_bytes(chunk.try_into().unwrap()))
+        .as_chunks::<8>()
+        .0
+        .iter()
+        .map(|chunk| f64::from_le_bytes(*chunk))
         .collect()
 }