feat(compare): mirror contributors-evolution retry logic and timeout for issues

Author: t128n

server/api/github/issues/[owner]/[repo].get.ts

@@ -1,3 +1,4 @@
+import { setTimeout } from 'node:timers/promises'
 import { CACHE_MAX_AGE_ONE_HOUR } from '#shared/utils/constants'
 
 const GITHUB_HEADERS = {
@@ -31,21 +32,49 @@ export default defineCachedEventHandler(
     const query = `repo:${owner}/${repo} is:issue is:open`
     const url = `https://api.github.com/search/issues?q=${encodeURIComponent(query)}&per_page=1`
 
-    try {
-      const data = await $fetch<GitHubSearchResponse>(url, {
-        headers: GITHUB_HEADERS,
-      })
-      return {
-        owner,
-        repo,
-        issues: data.total_count,
+    const maxAttempts = 3
+    let delayMs = 1000
+
+    for (let attempt = 0; attempt < maxAttempts; attempt += 1) {
+      try {
+        const response = await $fetch.raw<GitHubSearchResponse>(url, {
+          headers: GITHUB_HEADERS,
+          timeout: 10000,
+        })
+
+        if (response.status === 200) {
+          return {
+            owner,
+            repo,
+            issues: response._data?.total_count ?? 0,
+          }
+        }
+
+        if (response.status === 202) {
+          if (attempt === maxAttempts - 1) break
+          await setTimeout(delayMs)
+          delayMs = Math.min(delayMs * 2, 16_000)
+          continue
+        }
+
+        break
+      } catch (error: any) {
+        if (attempt === maxAttempts - 1) {
+          throw createError({
+            statusCode: error.response?.status || 500,
+            statusMessage:
+              error.response?._data?.message || 'Failed to fetch issue count from GitHub',
+          })
+        }
+        await setTimeout(delayMs)
+        delayMs = Math.min(delayMs * 2, 16_000)
       }
-    } catch (error: any) {
-      throw createError({
-        statusCode: error.response?.status || 500,
-        statusMessage: error.response?._data?.message || 'Failed to fetch issue count from GitHub',
-      })
     }
+
+    throw createError({
+      statusCode: 500,
+      statusMessage: 'Failed to fetch issue count from GitHub after retries',
+    })
   },
   {
     maxAge: CACHE_MAX_AGE_ONE_HOUR,