refactor: Convert jamdl shell script to a Rust application

Co-authored-by: aider (gemini/gemini-2.5-pro-preview-05-06) <aider@aider.chat>

Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "jamdl"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+anyhow = "1.0.82"
+clap = { version = "4.5.4", features = ["derive"] }
+tempfile = "3.10.1"

src/main.rs

@@ -0,0 +1,100 @@
+use anyhow::{Context, Result};
+use clap::Parser;
+use std::fs;
+use std::path::Path;
+use std::process::Command;
+use tempfile::TempDir;
+
+// ==== CONFIGURATION ====
+const NAS_HOST: &str = "(localaddress)";
+const NAS_USER: &str = "ssh_user";
+const NAS_PATH: &str = "/path/to/files/on/nas";
+const COOKIES_FILE: &str = "/location/of/apple-music-cookies-file.txt";
+
+#[derive(Parser, Debug)]
+#[command(author, version, about, long_about = None)]
+struct Args {
+    /// The URL of the video/music to download
+    #[arg(name = "URL")]
+    url: String,
+}
+
+fn main() -> Result<()> {
+    let args = Args::parse();
+
+    // Create temp directory
+    let temp_dir = TempDir::new().context("Failed to create temporary directory")?;
+    let temp_path = temp_dir.path();
+    println!(
+        "[INFO] Created temporary directory at: {}",
+        temp_path.display()
+    );
+
+    download_media(&args.url, temp_path)?;
+    transfer_files(temp_path)?;
+
+    // Cleanup is handled by TempDir's Drop trait
+    println!("[INFO] Cleaning up...");
+    Ok(())
+}
+
+fn download_media(video_url: &str, download_path: &Path) -> Result<()> {
+    let mut cmd: Command;
+
+    if video_url.contains("music.apple.com") {
+        println!("[INFO] Apple Music link detected. Using gamdl...");
+        cmd = Command::new("gamdl");
+        if Path::new(COOKIES_FILE).exists() {
+            cmd.args(["--cookies-path", COOKIES_FILE, video_url]);
+        } else {
+            println!(
+                "[WARN] cookies.txt not found at {} — running gamdl without it",
+                COOKIES_FILE
+            );
+            cmd.arg(video_url);
+        }
+    } else if video_url.contains("soundcloud.com") {
+        println!("[INFO] Soundcloud link detected. Using scdl...");
+        cmd = Command::new("scdl");
+        cmd.args(["-l", video_url]);
+    } else {
+        println!("[INFO] Non-Apple Music link. Using yt-dlp...");
+        cmd = Command::new("yt-dlp");
+        cmd.args(["-o", "%(title)s.%(ext)s", video_url]);
+    }
+
+    cmd.current_dir(download_path);
+    let status = cmd
+        .status()
+        .with_context(|| format!("Failed to execute command: {:?}", cmd))?;
+
+    if !status.success() {
+        anyhow::bail!("Download command failed with status: {}", status);
+    }
+
+    Ok(())
+}
+
+fn transfer_files(source_path: &Path) -> Result<()> {
+    let is_empty = fs::read_dir(source_path)?.next().is_none();
+
+    if !is_empty {
+        println!("[INFO] Transferring files to NAS...");
+        let mut scp_cmd = Command::new("scp");
+        let source = format!(
+            "{}/.",
+            source_path.to_str().context("Invalid source path")?
+        );
+        let destination = format!("{}@{}:{}", NAS_USER, NAS_HOST, NAS_PATH);
+        scp_cmd.args(["-r", &source, &destination]);
+
+        let status = scp_cmd.status().context("Failed to execute scp")?;
+        if !status.success() {
+            anyhow::bail!("scp failed with status: {}", status);
+        }
+    } else {
+        println!("[WARN] No files found to transfer.");
+    }
+
+    Ok(())
+}