Implement tracks import

src/editor/tracks_editor.rs

@@ -1,6 +1,6 @@
-use super::tracks_editor_track_row::{PathType, TracksEditorTrackData};
+use super::tracks_editor_track_row::{TrackLocation, TracksEditorTrackData};
 use crate::{
-    db::models::{Recording, Work},
+    db::models::{Recording, Track, Work},
     editor::{
         recording_editor::MusicusRecordingEditor,
         recording_selector_popover::RecordingSelectorPopover,
@@ -37,6 +37,7 @@ mod imp {
         pub recording: RefCell<Option<Recording>>,
         pub recordings_popover: OnceCell<RecordingSelectorPopover>,
         pub track_rows: RefCell<Vec<TracksEditorTrackRow>>,
+        pub removed_tracks: RefCell<Vec<Track>>,
 
         #[template_child]
         pub recording_row: TemplateChild<adw::ActionRow>,
@@ -196,6 +197,9 @@ impl TracksEditor {
             self.imp().track_list.remove(&track_row);
         }
 
+        // Forget previously removed tracks (see above).
+        self.imp().removed_tracks.borrow_mut().clear();
+
         let tracks = self
             .library()
             .tracks_for_recording(&recording.recording_id)
@@ -208,8 +212,7 @@ impl TracksEditor {
                 self.add_track_row(
                     recording.clone(),
                     TracksEditorTrackData {
-                        track_id: Some(track.track_id),
+                        location: TrackLocation::Library(track.clone()),
-                        path: PathType::Library(track.path),
                         parts: track.works,
                     },
                 );
@@ -246,8 +249,7 @@ impl TracksEditor {
             self.add_track_row(
                 recording.to_owned(),
                 TracksEditorTrackData {
-                    track_id: None,
+                    location: TrackLocation::System(path),
-                    path: PathType::System(path),
                     parts: next_part,
                 },
             );
@@ -264,6 +266,10 @@ impl TracksEditor {
             #[weak(rename_to = this)]
             self,
             move |row| {
+                if let TrackLocation::Library(track) = row.track_data().location {
+                    this.imp().removed_tracks.borrow_mut().push(track);
+                }
+
                 this.imp().track_list.remove(row);
                 this.imp().track_rows.borrow_mut().retain(|p| p != row);
             }
@@ -278,7 +284,39 @@ impl TracksEditor {
 
     #[template_callback]
     fn save(&self) {
-        // TODO
+        for track in self.imp().removed_tracks.borrow_mut().drain(..) {
+            self.library().delete_track(&track).unwrap();
+        }
+
+        for (index, track_row) in self.imp().track_rows.borrow_mut().drain(..).enumerate() {
+            let track_data = track_row.track_data();
+
+            match track_data.location {
+                TrackLocation::Undefined => {
+                    log::error!("Failed to save track: Undefined track location.");
+                }
+                TrackLocation::Library(track) => self
+                    .library()
+                    .update_track(&track.track_id, index as i32, track_data.parts)
+                    .unwrap(),
+                TrackLocation::System(path) => {
+                    if let Some(recording) = &*self.imp().recording.borrow() {
+                        self.library()
+                            .import_track(
+                                &path,
+                                &recording.recording_id,
+                                index as i32,
+                                track_data.parts,
+                            )
+                            .unwrap();
+                    } else {
+                        log::error!("Failed to save track: No recording set.");
+                    }
+                }
+            }
+
+            self.imp().track_list.remove(&track_row);
+        }
 
         self.navigation().pop();
     }

src/editor/tracks_editor_track_row.rs

@@ -1,5 +1,5 @@
 use crate::{
-    db::models::{Recording, Work},
+    db::models::{Recording, Track, Work},
     editor::tracks_editor_parts_popover::TracksEditorPartsPopover,
     library::MusicusLibrary,
 };
@@ -90,10 +90,10 @@ impl TracksEditorTrackRow {
 
         obj.set_activatable(!recording.work.parts.is_empty());
 
-        obj.set_subtitle(&match &track_data.path {
+        obj.set_subtitle(&match &track_data.location {
-            PathType::None => String::new(),
+            TrackLocation::Undefined => String::new(),
-            PathType::Library(path) => path.to_owned(),
+            TrackLocation::Library(track) => track.path.clone(),
-            PathType::System(path) => {
+            TrackLocation::System(path) => {
                 let format_string = gettext("Import from {}");
                 let file_name = path.file_name().unwrap().to_str().unwrap();
                 match formatx!(&format_string, file_name) {
@@ -178,15 +178,14 @@ impl TracksEditorTrackRow {
 
 #[derive(Clone, Default, Debug)]
 pub struct TracksEditorTrackData {
-    pub track_id: Option<String>,
+    pub location: TrackLocation,
-    pub path: PathType,
     pub parts: Vec<Work>,
 }
 
 #[derive(Clone, Default, Debug)]
-pub enum PathType {
+pub enum TrackLocation {
     #[default]
-    None,
+    Undefined,
-    Library(String),
+    Library(Track),
     System(PathBuf),
 }

src/library.rs

@@ -8,13 +8,15 @@ use adw::{
     prelude::*,
     subclass::prelude::*,
 };
-use anyhow::Result;
+use anyhow::{anyhow, Result};
 use chrono::prelude::*;
 use diesel::{dsl::exists, prelude::*, QueryDsl, SqliteConnection};
 use once_cell::sync::Lazy;
 
 use std::{
     cell::{OnceCell, RefCell},
+    ffi::OsString,
+    fs,
     path::{Path, PathBuf},
 };
 
@@ -1232,6 +1234,130 @@ impl MusicusLibrary {
         Ok(())
     }
 
+    /// Import a track into the music library.
+    // TODO: Support mediums, think about albums.
+    pub fn import_track(
+        &self,
+        path: impl AsRef<Path>,
+        recording_id: &str,
+        recording_index: i32,
+        works: Vec<Work>,
+    ) -> Result<()> {
+        let mut binding = self.imp().connection.borrow_mut();
+        let connection = &mut *binding.as_mut().unwrap();
+
+        let track_id = db::generate_id();
+        let now = Local::now().naive_local();
+
+        // TODO: Human interpretable filenames?
+        let mut filename = OsString::from(recording_id);
+        filename.push("_");
+        filename.push(OsString::from(format!("{recording_index:02}")));
+        if let Some(extension) = path.as_ref().extension() {
+            filename.push(".");
+            filename.push(extension);
+        };
+
+        let mut to_path = PathBuf::from(self.folder());
+        to_path.push(&filename);
+        let library_path = filename
+            .into_string()
+            .or(Err(anyhow!("Filename contains invalid Unicode.")))?;
+
+        fs::copy(path, to_path)?;
+
+        let track_data = tables::Track {
+            track_id: track_id.clone(),
+            recording_id: recording_id.to_owned(),
+            recording_index,
+            medium_id: None,
+            medium_index: None,
+            path: library_path,
+            created_at: now,
+            edited_at: now,
+            last_used_at: now,
+            last_played_at: None,
+        };
+
+        diesel::insert_into(tracks::table)
+            .values(&track_data)
+            .execute(connection)?;
+
+        for (index, work) in works.into_iter().enumerate() {
+            let track_work_data = tables::TrackWork {
+                track_id: track_id.clone(),
+                work_id: work.work_id,
+                sequence_number: index as i32,
+            };
+
+            diesel::insert_into(track_works::table)
+                .values(&track_work_data)
+                .execute(connection)?;
+        }
+
+        Ok(())
+    }
+
+    // TODO: Support mediums, think about albums.
+    pub fn delete_track(&self, track: &Track) -> Result<()> {
+        let mut binding = self.imp().connection.borrow_mut();
+        let connection = &mut *binding.as_mut().unwrap();
+
+        diesel::delete(track_works::table)
+            .filter(track_works::track_id.eq(&track.track_id))
+            .execute(connection)?;
+
+        diesel::delete(tracks::table)
+            .filter(tracks::track_id.eq(&track.track_id))
+            .execute(connection)?;
+
+        let mut path = PathBuf::from(self.folder());
+        path.push(&track.path);
+        fs::remove_file(path)?;
+
+        Ok(())
+    }
+
+    // TODO: Support mediums, think about albums.
+    pub fn update_track(
+        &self,
+        track_id: &str,
+        recording_index: i32,
+        works: Vec<Work>,
+    ) -> Result<()> {
+        let mut binding = self.imp().connection.borrow_mut();
+        let connection = &mut *binding.as_mut().unwrap();
+
+        let now = Local::now().naive_local();
+
+        diesel::update(tracks::table)
+            .filter(tracks::track_id.eq(track_id.to_owned()))
+            .set((
+                tracks::recording_index.eq(recording_index),
+                tracks::edited_at.eq(now),
+                tracks::last_used_at.eq(now),
+            ))
+            .execute(connection)?;
+
+        diesel::delete(track_works::table)
+            .filter(track_works::track_id.eq(track_id))
+            .execute(connection)?;
+
+        for (index, work) in works.into_iter().enumerate() {
+            let track_work_data = tables::TrackWork {
+                track_id: track_id.to_owned(),
+                work_id: work.work_id,
+                sequence_number: index as i32,
+            };
+
+            diesel::insert_into(track_works::table)
+                .values(&track_work_data)
+                .execute(connection)?;
+        }
+
+        Ok(())
+    }
+
     pub fn connect_changed<F: Fn(&Self) + 'static>(&self, f: F) -> glib::SignalHandlerId {
         self.connect_local("changed", true, move |values| {
             let obj = values[0].get::<Self>().unwrap();