Local music support (the PR)

Cargo.toml

@@ -1,5 +1,5 @@
 [workspace]
-members = ["spotify_player", "lyric_finder"]
+members = ["spotify_player", "lyric_finder", "local_player"]
 resolver = "2"
 
 [profile.release]

local_player/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "local_player"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+anyhow = "1.0.99"
+rodio = "0.21.1"
+
+[lints]
+workspace = true

local_player/src/main.rs

@@ -0,0 +1,36 @@
+use std::fs::File;
+use rodio::{Decoder, OutputStream};
+
+// Play music function.
+// Sorry but they are from rodio's example, currently and I don't know if it works or not. I can't test it out.
+// At least, VS Code tells me there 0 errors and 1 warnings (in this function)
+// I'm new to Rust. 
+fn play_music(file: String) -> OutputStream {
+    // Define an stream handle and a sink.
+    let stream_handle = rodio::OutputStreamBuilder::open_default_stream()
+        .expect("opening default audio stream failed");
+    let sink = rodio::Sink::connect_new(&stream_handle.mixer());
+    // Load from a file
+    let file = File::open(file).unwrap();
+    // Decode that sound file into a source
+    let source = Decoder::try_from(file).unwrap();
+    // Play the sound directly on the device
+    stream_handle.mixer().add(source);
+
+    // The sound plays in a separate audio thread,
+    // so we need to keep the main thread alive while it's playing.
+    std::thread::sleep(std::time::Duration::from_secs(5));
+
+    stream_handle
+}
+
+fn main() -> anyhow::Result<()> {
+    println!(
+        "Hello from local_player member of spotify_player. The player is not implemented yet!"
+    );
+    println!("Playing sound.mp3 from the current directory...");
+
+    play_music("sound.mp3".to_string());
+
+    Ok(())
+}