From 1f74bce383ab22714a00e1e2a805a501df1b2d9e Mon Sep 17 00:00:00 2001
From: "kirill.chalov" <kirill.chalov@espressif.com>
Date: Wed, 25 Dec 2024 19:44:46 +0800
Subject: [PATCH] ci[pr-preview]: keep only one comment with PR preview link

---
 .github/workflows/prw-deploy-preview.yml | 41 ++++++++++++++++++++----
 1 file changed, 35 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/prw-deploy-preview.yml b/.github/workflows/prw-deploy-preview.yml
index 34bd9a98..ee00fc53 100644
--- a/.github/workflows/prw-deploy-preview.yml
+++ b/.github/workflows/prw-deploy-preview.yml
@@ -66,12 +66,41 @@ jobs:
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |
-            github.rest.issues.createComment({
-              issue_number: ${{ env.PR_NUMBER }},
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              body: `🎉 A preview for this PR is available at: ${{ env.HUGO_BASEURL }}pr${{ env.PR_NUMBER }}/`
-            });
+            try {
+              const { data: comments } = await github.rest.issues.listComments({
+                issue_number: ${{ env.PR_NUMBER }},
+                owner: context.repo.owner,
+                repo: context.repo.repo
+              });
+
+              // Define the comment body
+              const commentBody = `🎉 A preview for this PR is available at: ${{ env.HUGO_BASEURL }}pr${{ env.PR_NUMBER }}/`;
+
+              // Look for an existing comment containing the specific text
+              const existingComment = comments.find(comment =>
+                comment.body.includes("🎉 A preview for this PR is available at:")
+              );
+
+              if (existingComment) {
+                // Update the existing comment
+                await github.rest.issues.updateComment({
+                  comment_id: existingComment.id,
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  body: commentBody
+                });
+              } else {
+                // Create a new comment
+                await github.rest.issues.createComment({
+                  issue_number: ${{ env.PR_NUMBER }},
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  body: commentBody
+                });
+              }
+            } catch (error) {
+              core.setFailed(`Failed to manage PR comment: ${error.message}`);
+            }
 
       - name: Invalidate CloudFront cache for PR
         uses: chetan/invalidate-cloudfront-action@v2