From 0f5223d3d3f6aeb6bb1a0b09ad3d4ef5731774dd Mon Sep 17 00:00:00 2001
From: fxqnlr <felixquinn03@gmail.com>
Date: Sat, 5 Nov 2022 21:53:24 +0100
Subject: added setup & download; direct input

---
 src/commands/download.rs | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 src/commands/download.rs

(limited to 'src/commands/download.rs')

diff --git a/src/commands/download.rs b/src/commands/download.rs
new file mode 100644
index 0000000..05c54cb
--- /dev/null
+++ b/src/commands/download.rs
@@ -0,0 +1,46 @@
+use std::{io::Write, fs::File};
+
+use reqwest::Client;
+
+use futures_util::StreamExt;
+
+use crate::{get_current_list, config::Cfg, db::get_dl_links};
+
+pub async fn download(config: Cfg) -> Result<(), Box<dyn std::error::Error>> {
+    let list = get_current_list(config.clone())?;
+
+    let links = get_dl_links(config.clone(), list)?;
+
+    download_links(config, links).await?;
+
+    Ok(())
+}
+
+async fn download_links(config: Cfg, links: Vec<String>) -> Result<String, Box<dyn std::error::Error>> {
+
+    let dl_path = String::from(&config.downloads);
+
+    for link in links {
+        let filename = link.split('/').last().unwrap();
+        let dl_path_file = format!("{}/{}", config.downloads, filename);
+        println!("Downloading {}", link);
+
+        let res = Client::new()
+            .get(String::from(&link))
+            .send()
+            .await
+            .or(Err(format!("Failed to GET from '{}'", &link)))?;
+        
+        // download chunks
+        let mut file = File::create(String::from(&dl_path_file)).or(Err(format!("Failed to create file '{}'", dl_path_file)))?;
+        let mut stream = res.bytes_stream();
+
+        while let Some(item) = stream.next().await {
+            let chunk = item.or(Err("Error while downloading file"))?;
+            file.write_all(&chunk)
+                .or(Err("Error while writing to file"))?;
+        }
+    }
+
+    Ok(dl_path)
+}
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