initial prototype

src/downloader.rs

@@ -0,0 +1,37 @@
+use crate::state::AppState;
+use std::sync::Arc;
+use tokio_stream::StreamExt;
+
+pub fn spawn_download_task(url: &str, state: Arc<AppState>) {
+    let url = url.to_string();
+    tokio::spawn(async move {
+        if let Err(e) = download_stream(&url, state).await {
+            eprintln!("Download failed: {}", e);
+        }
+    });
+}
+
+async fn download_stream(url: &str, state: Arc<AppState>) -> Result<(), reqwest::Error> {
+    println!("Starting download from: {}", url);
+
+    let response = reqwest::Client::new().get(url).send().await?;
+    let mut stream = response.bytes_stream();
+    let mut total_size = 0;
+
+    while let Some(chunk) = stream.next().await {
+        let bytes = chunk?;
+        total_size += bytes.len();
+
+        state.add_chunk(bytes).await;
+
+        if total_size % (1024 * 1024) == 0 {
+            // Log every MB
+            println!("Downloaded: {} MB", total_size / (1024 * 1024));
+        }
+    }
+
+    state.mark_complete().await;
+    println!("Download complete! Total: {} bytes", total_size);
+
+    Ok(())
+}