feat: basic music backend

src/database/mod.rs

@@ -0,0 +1,57 @@
+pub mod paths;
+pub mod tracks;
+pub mod artists;
+
+use r2d2::{Pool, PooledConnection};
+use r2d2_sqlite::SqliteConnectionManager;
+
+pub fn establish_connection() -> Pool<SqliteConnectionManager> {
+    dotenvy::dotenv().ok();
+
+    let database_url = std::env::var("DATABASE_URL").expect("DATABASE_URL must be set");
+
+    let manager = SqliteConnectionManager::file(database_url);
+    let pool = Pool::new(manager).expect("Error creating SQLite pool");
+
+    pool
+}
+
+pub fn initialize_database(
+    connection: &PooledConnection<SqliteConnectionManager>,
+) -> Result<(), r2d2_sqlite::rusqlite::Error> {
+    connection.execute(
+        "
+            CREATE TABLE IF NOT EXISTS library_paths (
+                id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+                path TEXT NOT NULL
+            );
+        ",
+        [],
+    )?;
+
+    connection.execute(
+        "CREATE TABLE IF NOT EXISTS artists (
+                id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+                name TEXT NOT NULL
+    )",
+        [],
+    )?;
+
+    connection
+        .execute(
+            "
+            CREATE TABLE IF NOT EXISTS tracks (
+                hash TEXT PRIMARY KEY NOT NULL,
+                library_path_id INTEGER NOT NULL,
+                name TEXT NOT NULL,
+                artist_id INTEGER NOT NULL,
+                path TEXT NOT NULL,
+                FOREIGN KEY (library_path_id) REFERENCES library_paths (id) ON DELETE CASCADE,
+                FOREIGN KEY (artist_id) REFERENCES artists (id) ON DELETE CASCADE
+            );
+        ",
+            [],
+        )?;
+
+    Ok(())
+}