perf: isolate pull check refreshes (Closes #521)

frontend/dashboard.js

@@ -2333,6 +2333,22 @@
     }
   }
 
+  function renderPullCheckStatus(status) {
+    qs('#pull-ci-state').textContent = 'CI ' + (status.ci_state || 'unknown');
+    renderCheckSection('pull', status);
+    if (status.head_sha !== selectedPullDetail?.head_sha) {
+      qs('#pull-review-status').textContent = 'New commits detected. Reload review data before merging.';
+      qs('#pull-merge-state').textContent = 'Review data is stale';
+      qs('#merge-pull').disabled = true;
+      return;
+    }
+    selectedPullDetail = { ...selectedPullDetail, ...status };
+    const eligibility = createPullSheet.mergeEligibility(selectedPullDetail, pullReviewState);
+    qs('#pull-merge-state').textContent = eligibility.reason;
+    qs('#merge-pull').disabled = !eligibility.allowed;
+    qs('#pull-review-status').textContent = 'Checks refreshed for the current head.';
+  }
+
   function focusNextUnreviewedPullFile() {
     if (!selectedPullDetail || !pullReviewState) return;
     const filename = pullController.nextUnreviewed(selectedPullDetail, pullReviewState);
@@ -4280,11 +4296,18 @@
   });
   qs('#pull-review-retry').addEventListener('click', loadPullReview);
   qs('#refresh-pull-checks').addEventListener('click', async () => {
+    if (!selectedPull || !selectedPullDetail?.head_sha) return;
+    const item = selectedPull;
     const button = qs('#refresh-pull-checks');
     button.disabled = true;
     qs('#pull-checks-summary').textContent = 'Refreshing…';
-    try { await loadPullReview({ refresh: true }); }
-    finally { button.disabled = false; }
+    try {
+      const status = await pullController.loadChecks(item);
+      if (selectedPull !== item) return;
+      renderPullCheckStatus(status);
+    } catch (_error) {
+      if (selectedPull === item) qs('#pull-checks-summary').textContent = 'Refresh failed · retry';
+    } finally { button.disabled = false; }
   });
   qs('#next-unreviewed-pull-file').addEventListener('click', focusNextUnreviewedPullFile);
   qs('#load-older-pull-comments').addEventListener('click', async () => {
@@ -4490,7 +4513,7 @@
     button.disabled = true;
     qs('#review-checks-summary').textContent = 'Refreshing…';
     try {
-      const detail = await reviewController.load(item);
+      const detail = await reviewController.loadChecks(item);
       if (selectedReview !== item) return;
       if (selectedReviewHead && detail.head_sha !== selectedReviewHead) {
         qs('#review-sheet-status').textContent = 'New commits detected. Reload the review before submitting feedback.';

frontend/pull-sheet.js

@@ -44,6 +44,7 @@ function renderFile(file, index, reviewed, escapeHtml) {
 function createPullSheet({ fetchJson, storage, createConversationPager = globalThis.createConversationPager, createOperationId = () => globalThis.crypto?.randomUUID?.() || String(Date.now()) + '-' + Math.random() }) {
   let commentRequest = null;
   let mergeRequest = null;
+  let checkRequest = null;
   const reviewRequests = new Map();
   const reviewCache = new Map();
   const pathFor = item => 'api/v1/repos/' + String(item.repository || '').split('/')
@@ -82,6 +83,13 @@ function createPullSheet({ fetchJson, storage, createConversationPager = globalT
       reviewRequests.set(key, request);
       return request;
     },
+    loadChecks(item) {
+      if (checkRequest) return checkRequest;
+      checkRequest = fetchJson(pathFor(item) + '/checks', {
+        headers: { Accept: 'application/json' },
+      }).finally(() => { checkRequest = null; });
+      return checkRequest;
+    },
     conversation(item, initialPage) {
       const pager = createConversationPager({
         loadPage: page => fetchJson(pathFor(item) + '/comments?page=' + encodeURIComponent(page) + '&limit=20', {

frontend/review-sheet.js

@@ -4,6 +4,7 @@ function createReviewController({
   createOperationId = () => globalThis.crypto?.randomUUID?.() || String(Date.now()) + '-' + Math.random(),
 }) {
   let pendingSubmission = null;
+  let pendingChecks = null;
 
   function endpoint(item) {
     const [owner, repo] = String(item.repository || '').split('/');
@@ -18,6 +19,14 @@ function createReviewController({
     return fetchJson(endpoint(item), { headers: { Accept: 'application/json' } });
   }
 
+  function loadChecks(item) {
+    if (pendingChecks) return pendingChecks;
+    pendingChecks = fetchJson(endpoint(item) + '/checks', {
+      headers: { Accept: 'application/json' },
+    }).finally(() => { pendingChecks = null; });
+    return pendingChecks;
+  }
+
   function submit(item, payload) {
     if (pendingSubmission) return pendingSubmission;
     const operationKey = 'stackchain.review-submit.v1:' + item.repository + '#' + item.number;
@@ -44,7 +53,7 @@ function createReviewController({
     return pendingSubmission;
   }
 
-  return { load, submit };
+  return { load, loadChecks, submit };
 }
 
 function createWrapPreference({ storage, mobile }) {