Add download lifecycle controls

crates/ely_browser_core/src/state/downloads.rs

@@ -25,6 +25,49 @@ impl BrowserCore {
         Ok(download_id)
     }
 
+    pub fn pause_download(&mut self, download_id: &DownloadId) -> Result<(), CoreError> {
+        self.download_entry_mut(download_id)?.pause()?;
+        Ok(())
+    }
+
+    pub fn resume_download(&mut self, download_id: &DownloadId) -> Result<(), CoreError> {
+        self.download_entry_mut(download_id)?.resume()?;
+        Ok(())
+    }
+
+    pub fn cancel_download(&mut self, download_id: &DownloadId) -> Result<(), CoreError> {
+        self.download_entry_mut(download_id)?.cancel()?;
+        Ok(())
+    }
+
+    pub fn retry_download(&mut self, download_id: &DownloadId) -> Result<(), CoreError> {
+        self.download_entry_mut(download_id)?.retry()?;
+        Ok(())
+    }
+
+    pub fn update_download_progress(
+        &mut self,
+        download_id: &DownloadId,
+        received_bytes: u64,
+    ) -> Result<(), CoreError> {
+        self.download_entry_mut(download_id)?.update_progress(received_bytes)?;
+        Ok(())
+    }
+
+    pub fn complete_download(
+        &mut self,
+        download_id: &DownloadId,
+        received_bytes: u64,
+    ) -> Result<(), CoreError> {
+        self.download_entry_mut(download_id)?.complete(received_bytes)?;
+        Ok(())
+    }
+
+    pub fn fail_download(&mut self, download_id: &DownloadId) -> Result<(), CoreError> {
+        self.download_entry_mut(download_id)?.fail()?;
+        Ok(())
+    }
+
     pub(super) fn visible_downloads(&self) -> Vec<DownloadEntry> {
         self.download_entries
             .iter()
@@ -32,4 +75,14 @@ impl BrowserCore {
             .cloned()
             .collect()
     }
+
+    fn download_entry_mut(
+        &mut self,
+        download_id: &DownloadId,
+    ) -> Result<&mut DownloadEntry, CoreError> {
+        self.download_entries
+            .iter_mut()
+            .find(|entry| entry.id() == download_id)
+            .ok_or_else(|| CoreError::DownloadNotFound { id: download_id.clone() })
+    }
 }