feat: basic pr diff rendering

src/screen/dashboard/pull_request_view.rs

@@ -15,7 +15,7 @@ use crate::{
         text::text,
     },
     query::{self, QueryStatus, read_query, use_query},
-    screen::dashboard::pull_request_diff_view::PullRequestDiffView,
+    screen::dashboard::pull_request_diff_view::{self, PullRequestDiffView},
 };
 
 pub(crate) struct PullRequestView {
@@ -49,12 +49,14 @@ impl PullRequestView {
         _ = cx
             .observe(&query.clone(), move |this, _, cx| {
                 this.load_markdown_content(cx);
+                this.load_pr_diff(cx);
             })
             .detach();
 
         // cached query will not trigger observe callback
         // this is required so that content is loaded immediately for cached query
         self.load_markdown_content(cx);
+        self.load_pr_diff(cx);
 
         cx.notify();
     }
@@ -78,6 +80,25 @@ impl PullRequestView {
         cx.notify();
     }
 
+    fn load_pr_diff(&mut self, cx: &mut gpui::Context<Self>) {
+        let Some(query) = &self.pull_request_query else {
+            return;
+        };
+
+        let pr_id = {
+            let data = read_query(&query, cx);
+            if let QueryStatus::Loaded(pr) = data {
+                Some(pr.id.clone())
+            } else {
+                None
+            }
+        };
+
+        self.diff_view = pr_id.map(|id| cx.new(|cx| pull_request_diff_view::new(id, cx)));
+
+        cx.notify();
+    }
+
     fn pr_content(
         &self,
         pr: &api::issues::DetailedPullRequest,
@@ -264,7 +285,11 @@ impl gpui::Render for PullRequestView {
     ) -> impl gpui::IntoElement {
         div().size_full().child(match &self.pull_request_query {
         | Some(q) => match read_query(q, cx) {
-        | QueryStatus::Loaded(pr) => self.pr_content(pr, cx),
+        | QueryStatus::Loaded(pr) => match &self.diff_view {
+        | Some(v) => v.clone().into_any_element(),
+        | None => self.pr_content(pr, cx),
+        },
+
         | QueryStatus::Err(e) => div()
             .size_full()
             .child(format!("{:?}", e))
@@ -274,6 +299,7 @@ impl gpui::Render for PullRequestView {
             .child("loading pr content")
             .into_any_element(),
         },
+
         | None => div().size_full().child("no pr selected").into_any_element(),
         })
     }