my own take on some BASED design decisions

src-tauri/src/downloads/download_logic.rs

@@ -0,0 +1,40 @@
+use crate::auth::generate_authorization_header;
+use crate::db::DatabaseImpls;
+use crate::downloads::manifest::DropDownloadContext;
+use crate::DB;
+use log::info;
+use urlencoding::encode;
+use std::io::{BufWriter, Seek, SeekFrom, Write};
+
+pub fn download_game_chunk(ctx: DropDownloadContext) {
+    let base_url = DB.fetch_base_url();
+
+    let client = reqwest::blocking::Client::new();
+    let chunk_url = base_url
+        .join(&format!(
+            "/api/v1/client/chunk?id={}&version={}&name={}&chunk={}",
+            // Encode the parts we don't trust
+            ctx.game_id, encode(&ctx.version), encode(&ctx.file_name), ctx.index
+        ))
+        .unwrap();
+
+    let header = generate_authorization_header();
+
+    let mut response = client
+        .get(chunk_url)
+        .header("Authorization", header)
+        .send()
+        .unwrap();
+
+    let mut file_lock = ctx.file.lock().unwrap();
+
+    if ctx.offset != 0 {
+        file_lock
+            .seek(SeekFrom::Start(ctx.offset))
+            .expect("Failed to seek to file offset");
+    }
+
+    let mut stream = BufWriter::with_capacity(1024, file_lock.try_clone().unwrap());
+
+    response.copy_to(&mut stream).unwrap();
+}