WIP: Preparing the codebase, nothing important

Signed-off-by: Nikolai Rodionov <allanger@badhouseplants.net>

lib/Cargo.toml

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+[package]
+name = "lib"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+uuid = { version = "1.18.1", features = ["v4"] }

lib/src/lib.rs

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+mod metadata;
+mod project;
+
+mod region;
+mod track;

lib/src/metadata.rs

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+use uuid::Uuid;
+
+pub(crate) struct Metadata {
+    id: Uuid,
+    name: String,
+}
+
+impl Metadata {
+    pub(crate) fn new(name: String) -> Self {
+        let id = Uuid::new_v4();
+        Self { id, name }
+    }
+
+    pub(crate) fn id(&self) -> Uuid {
+        self.id
+    }
+
+    pub(crate) fn name(&self) -> &str {
+        &self.name
+    }
+
+    pub(crate) fn set_name(&mut self, name: String) {
+        self.name = name;
+    }
+}

lib/src/project.rs

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+use crate::{region::Region, track::Track};
+
+pub(crate) struct Project {
+    name: String,
+    tracks: Vec<Track>,
+    regions: Vec<Region>,
+}

lib/src/region.rs

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+use crate::metadata::Metadata;
+
+pub(crate) struct Region {
+    metadata: Metadata,
+    // Position of the track on the track
+    starts_at: u64,
+    // From which point of the audio source the region starts
+    plays_from: u64,
+    // Duration of the region after plays_from
+    duration: u64,
+}

lib/src/track.rs

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+use crate::metadata::Metadata;
+
+use super::region::Region;
+
+pub(crate) enum TrackType {
+    Audio,
+    Midi,
+}
+
+pub(crate) struct Track {
+    metadata: Metadata,
+    track_type: TrackType,
+}
+
+pub(crate) struct TrackStatus {}