Add pull request milestone features

crates/app/src/lib.rs

@@ -344,10 +344,68 @@ impl GotchaCore {
         ))
     }
 
+    pub async fn pull_filters(&self) -> Result<PullFilterOptions, GotchaError> {
+        let server = self.server()?;
+        let filter = self
+            .state
+            .lock()
+            .unwrap()
+            .preferences
+            .pull_filters
+            .get(&server.url)
+            .cloned()
+            .unwrap_or_default();
+        Ok(pull_filter_options(
+            &load_pull_milestones(&server).await?,
+            &filter,
+        ))
+    }
+
+    pub fn pull_filters_active(&self) -> Result<bool, GotchaError> {
+        let server = self.server()?;
+        let state = self.state.lock().unwrap();
+        let filter = state
+            .preferences
+            .pull_filters
+            .get(&server.url)
+            .cloned()
+            .unwrap_or_default();
+        Ok(filter.is_active(&state.preferences.pull_status))
+    }
+
+    pub fn set_pull_filters(&self, milestone: String) -> Result<(), GotchaError> {
+        let filter = PullFilter { milestone };
+        let mut state = self.state.lock().unwrap();
+        let server = state
+            .active_server
+            .and_then(|index| state.preferences.servers.get(index))
+            .ok_or("Select a server first.")?;
+        let key = server.url.clone();
+        if filter == PullFilter::default() {
+            state.preferences.pull_filters.remove(&key);
+        } else {
+            state.preferences.pull_filters.insert(key, filter);
+        }
+        save_preferences(&state.preferences).map_err(Into::into)
+    }
+
     pub async fn pulls(&self) -> Result<Vec<PullRow>, GotchaError> {
         let server = self.server()?;
-        let status = self.state.lock().unwrap().preferences.pull_status.clone();
-        Ok(pull_rows(&load_pulls(&server, &status).await?))
+        let (status, filter) = {
+            let state = self.state.lock().unwrap();
+            (
+                state.preferences.pull_status.clone(),
+                state
+                    .preferences
+                    .pull_filters
+                    .get(&server.url)
+                    .cloned()
+                    .unwrap_or_default(),
+            )
+        };
+        Ok(pull_rows(
+            &load_pulls(&server, &status, &filter.milestone).await?,
+        ))
     }
 
     pub async fn pull(